Video Surveillance Camera Lenses(1,611)
The Contera Bullet outdoor-ready megapixel camera features 1080p and 5-megapixel (MP) resolution for optimum performance. The Contera Bullet combines a day/night mechanical IR cut filter with an integrated motorized 2.7–12mm varifocal remote focus and zoom precision iris (P-iris) lens. Regardless of the time of day, the Contera Bullet is prepared for any lighting condition. For applications with poor lighting conditions, Enhanced WDR™ (wide dynamic range) at 120dB provides the best visual balance to shaded and bright light conditions. For clear color images in low-light, NightView™ offers strong low-light sensitivity for capturing details in extremely poor-lit scenes, and is further enhanced by built-in Smart IR LED illumination that automatically adjusts output in response to the distance of an object in view to prevent over-exposure when the object is very close to the camera. The Contera Bullet is ONVIF (Open Network Video Interface Forum) Profile S and G compliant, providing interoperability between network video products regardless of manufacturer.
MOBOTIX’s AllroundDual camera balances flexibility and features continuing the trend of modular system design. The MOBOTIX M16 AllroundDual features exchangeable image sensors for day, night and thermal use along with flash memory, microphone, speaker, PIR and optional feature modules. Housed within a weatherproof (IP66) chassis along with a comprehensive set of built-in cyber security controls, the camera offers powerful new application and integration options for both system integrators and end customers. The M16 also proves that standards and innovation can truly co-exist as the MOBOTIX video surveillance camera that brings together the MxPEG video codec specifically developed for security applications and the H.264 industry standard within an ONVIF-ready camera system. For added flexibility, the built-in RTSP/Multicast capability allows simultaneous streaming of MxPEG, M-JPEG and H.264 video to multiple clients without performance loss. Benefitting from an upgraded processor and software, the M16 delivers the highest frame rate of any MOBOTIX camera along with intelligent 3D motion detection and more capacity for on-board software applications. The M16, in common with all MOBOTIX models, benefits from regular software updates to ensure reliability while adding additional feature enhancements that make the M16 one of the most intelligent yet flexible camera systems on the market.
The WRT-3301 is a dual purpose Wisenet WAVE server and client built into a compact mini-tower form factor. This ready to deploy solution can manage up to 170 Mbps of recording throughput on up to 32TB of storage for a single site, or as an addition to your existing Wisenet WAVE system. Wisenet WAVE VMS (Video Management System) Wisenet WAVE is ideally suited to meet the needs of customers looking for a reasonably priced and easy to use end-to-end video surveillance solution. A highly customizable IP video management platform, WAVE gives users the ability to create tailored network video solutions for any type of project, on any device. With an intuitive interface requiring little to no training, WAVE empowers new and existing Hanwha IP camera users to make the most of their cameras’ advanced features and onboard analytics such as intelligent video analytics (appear, disappear, loitering), market intelligence statistics (queue management) and sound classification (explosion, glass breakage, gun shot and scream detection). WAVE is ONVIF compliant which allows it to support many other ONVIF compliant devices.
Exhibiting at ISC West 2018: booth number 14079 New Wisenet Multi-Sensor Cameras Hanwha Techwin has expanded its multi-sensor camera line with two new Wisenet multi-sensor cameras. The Wisenet PNM-7000VD (2-head) and PNM-9000VQ (4-head) combine powerful performance in a small form factor at an affordable price. For maximum adaptability, configurable fixed-focus lens/CMOS sensor modules are available in multiple fields of view which can be easily installed onsite. With high frame-rates (60/30fps), true WDR (Wide Dynamic Range) and a powerful suite of analytics built in, the cameras bring a new level of quality and value to the multi-directional camera market. Utilising a single IP address over one cat5 cable requires only one VMS license further reducing the cost to install, service, and support. New Wisenet WAVE VMS Wisenet WAVE VMS is a highly customisable IP video management platform that lets users create tailored network video solutions for any type of project, on any device. With a user-friendly intuitive interface requiring little to no training, WAVE empowers new and existing Hanwha users to make the most of their cameras’ advanced features and onboard advanced analytics such as intelligent video analytics (appear, disappear, loitering, line crossing, enter, exit), and sound classification (explosion, glass breakage, gun shot and scream detection). WAVE is ONVIF compliant, which allows it to support many other ONVIF compliant devices. New Wisenet Stainless Steel Cameras The Wisenet stainless steel cameras are built for harsh environments such as marine locations or areas where aggressive chemicals are used. They utilise the Wisenet 5 chipset featuring high frame-rates, day & night (ICR), advanced WDR (150dB), H.265/H.264/MJPEG multiple streaming codecs, and powerful video analytics (including loitering, directional detection, fog detection, tampering, motion detection handover, and objects entering or exiting an area). Audio analytics are included for sound classification and notification. New Wisenet Thermal Cameras Hanwha Techwin is broadening its line of solutions by introducing thermal cameras capable of long range detection. With selectable 13/19/35mm lenses, the new thermal cameras are available in both bullet and PT mounts. The TNO-4040T presents a clear, full frame 30fps thermal image at 640x480 resolution using either H.265 or H.264 based WiseStream II compression technology.
Hanwha Techwin America continues to be an industry leader with extreme low-light capability due to a 1/2” CMOS sensor and one of the best in class F0.94 lens. extraLUX, is now available for its popular Wisenet X series camera range and is featured in the XNV-6085 (outdoor dome) camera. This extraLUX-enabled camera captures crystal clear, true-color images in low-light conditions without IR LEDs. The XNV-6085 includes a motorized vari-focal lens (4.1mm ~16.4mm) which will allow the user to remotely zoom in/out and focus. It also features full PTRZ (Pan, Tilt, Rotate and zoom) for additional control and positioning. Wisenet X series cameras feature Wisenet 5 technology providing 150dB Wide Dynamic Range (WDR), a comprehensive suite of license-free built-in analytics, enhanced device security and better compression and data transfer performance via Hanwha’s embedded WiseStream II compression technology and H.265 high efficiency encoding.
ConteraCMR® is a full line of cloud managed recorders, with four customizable platform choices. The base NVR Appliance supports a maximum of 8 or 16 POE ports and up to 20TB of onboard video-optimized storage. The online Arecont Vision SysCon System Configurator™ simplifies selecting the best ConteraCMR platform for specific project requirements. All ConteraCMR platforms include a three-year manufacturer’s warranty. Tying the ConteraVMS®, an advanced video management system that can support up to 128 cameras, and Contera CMR platforms together over the cloud is ConteraWS® (web services). ConteraWS enables recording to occur locally on a ConteraCMR platform (or 3rd party compliant server running ConteraVMS software). Local recording eliminates the pitfalls of resolution and framerate restrictions that can limit other solutions. User profiles and cloud information is all stored in the cloud for convenient, remote access and management. Local administration is not required, reducing complexity and staffing needs. Therefore, the NVR Appliance can be accessed remotely over the local area network just as in a traditional video surveillance solution. The system can be securely reached from anywhere via choice of a full-featured thick client, mobile apps, Apple TV app, and a multi-browser web client. Video also can be stored in the cloud for important clips, then shared as needed. Management is simplified with access to all ConteraCMR platforms via a single sign-on capability. Instant notification of alarm, motion, or system health events are sent to any authorized recipient via smartphone or computer. Software updates can be applied remotely, reducing time and cost to deploy. There is no need for port forwarding or use of a Dynamic Domain Name Service (DDNS). ConteraWS also brings advanced cybersecurity, offering multi-factor authentication, NIST-compliant data encryption, transport layer security, and requiring no open inbound ports. The complete Contera video surveillance solution offers the performance and reliability of local recording with the convenience and flexibility of a cloud application.
System Overview Ultra series adopts high performance DSP and Sony advanced image sensor technology, which can provide excellent image effects for users. With Dahua advanced software algorithm, the series is able to support people counting and heat map which brings extra business analysis value for customers. In addition, IP67, IK10 and heater compliance ensure the series can be applied in a harsher environment. Functions ePoE TechnologyThe ePoE technology of Dahua, designed internally, adopts advanced 2D-PAM3 coding modulation from physical layer, and realizes full duplex transmission over 800 meters at the speed of 10Mbps, or 300 meters at the speed of 100Mbps via Cat 5 or coaxial cable media. It supports PoE and PoC power supply technology which has greatly simplified construction and wiring. Dahua ePoE technology offers a new way to accomplish long distance transmission between IP cameras and network switches. It allows more flexible surveillance system design, improves reliability and saves construction and wiring cost. 4K Technology4K resolution is a revolutionary breakthrough in image processing technology. 4K delivers four times the resolution of standard HDTV 1080p cameras and offers superior picture quality and image details. 4K resolution improves the clarity of a magnified scene to view or record crisp forensic video from large areas. E-PTZ FunctionE-PTZ (electronic-PTZ (Pan-Tilt Zoom)) is a virtual technology. E-PTZ function can be utilized on the local area. Mostly it appears in megapixel or other cameras. Business Intelligent Analysis (People counting, Heatmap)This Dahua camera also supports more advanced intelligent features such as people counting and heat map, besides basic IVS functions. These two functions can be applied to business intelligence and bring extra values to customers. It is available to acquire daily, weekly, monthly and yearly people flow via people counting and output data report. Heat map can be based on a moving object in time of space movement for analysis, find the most active area and output the report, which is to provide valuable data support for commercial applications. Smart Codec (H.265+ & H.264+)Smart Codec is the optimized implementation of standard video compression (H.265 & H.264) that uses a scene-adaptive encodingstrategy, dynamic GOP, dynamic ROI, flexible multi-frame reference structure and intelligent noise reduction to deliver high-quality video without straining the network. Smart Codec technology reduces bitrate and storage requirements by up to 70% when compared to the standard video compression. Environmental & ProtectionWith a temperature range of -40 °C to +60 °C (-40 °F to +140 °F), the camera is designed for extreme temperature environments. Supporting ±25% input voltage tolerance, this camera suits even the most unstable conditions for outdoor applications. Its 6KV lightning rating provides effective protection for both the camera and its structure against lightning. Subjected and certified to rigorous dust and immersion tests (IP67) and impact tests (IK10), The camera complies with an IK10 impact rating making it capable of withstanding the equivalent of 5 kg (11.02 lbs) of force dropped from a height of 40 cm (15.75 in.)
Videotec is launching DELUX, the new imaging and encoding technology for outdoor surveillance that generates incredibly vivid and clear color video images day or night. In particular, thanks to the camera’s increased light sensitivity, the DELUX technology can obtain bright images with well-defined colours in very low light conditions – even typical night-time conditions to 0.006 lux (0.0006 lux in black and white). The technology offers significant advantages for video surveillance in sensitive outdoor areas where it is necessary to identify people, objects, moving vehicles and abnormal events with the highest levels of detail possible at all times, even at night. Developed end to end by Videotec’s R&D team, the new DELUX technology has now been integrated into the ULISSE COMPACT PTZ, the worldwide benchmark for the surveillance of urban and industrial areas, critical infrastructures, transportation, perimeters and borders. The ULISSE COMPACT is a Day/Night, FullHD 1080p camera with a 30x optical zoom and a frame rate of 60fps. It is capable of accurately pinpoint details in any scene – even dynamic, rapidly changing situations. In addition to improved light sensitivity, with outstanding color rendering and greater noise reduction, the DELUX technology has brought new advanced performances to the ULISSE COMPACT, namely in the control of speed proportional to zoom and management of Privacy Masking. ULISSE COMPACT’s robust mechanical construction guarantees unbeatable performance in all weather conditions, – from -40°C to + 60°C – with a rotation speed of up to 200°/s, highly accurate preset positioning, a wiper and an integrated LED illuminator. Thanks to the meticulous care taken in all of the DELUX technology design stages, significant reductions have been made to the costs of this new ULISSE COMPACT model. In addition to the improved performance, this has increased the model’s competitiveness thus responding to customer’s needs and an increasingly selective market.
Contera® Panoramic megapixel IP cameras provide an all-in-one solution for wide-area video surveillance. Four sensors and lenses are housed in an outdoor-rated IP66 and IK-10 impact-resistant dome enclosure. The cameras are available in a 180° configuration and resolutions of 8- and 20-megapixel (MP). A single Contera Panoramic camera can replace multiple conventional cameras with the ability to zoom into multiple regions of interest. Their return on investment is easily measured any way you view it. Regardless of the time of day, the Contera Panoramic is prepared for any lighting condition. For applications with poor lighting conditions, Enhanced WDR™ (wide dynamic range) at 120dB provides the best visual balance to shaded and bright light conditions. For clear color images in low-light, NightView™ offers strong low-light sensitivity for capturing details in extremely poor-lit scenes, which is further enhanced by LED illumination built into each sensor gimbal. Arecont Vision was the first to bring H.264 to the mainstream market and recently-developed SNAPstream™ (Smart Noise Adaptation and Processing) technology for reducing bandwidth without impacting image quality. Today, we are proud to offer our next generation H.265 with SNAPstream+™ smart codec capable of delivering high quality video while saving over 50% of the data rate to reduce or prevent strain on the network. The camera’s power can be supplied via a Power over-Ethernet (PoE - IEEE 802.3af) compliant network cable connection. The Contera Panoramic is ONVIF (Open Network Video Interface Forum) Profile S and G compliant, providing interoperability between network video products regardless of manufacturer.
The Evolution 180 Outdoor Camera is built upon Oncam’s expertise and heritage on 360-degree technology. It is specifically designed for applications that require a dewarped panoramic view of an outdoor scene, without blind spots, from a single sensor camera. The 12MP high-resolution sensor and the built-in 3D dewarped panoramic video provides industry leading Panoramic+ views. The true day/night functionality allows images to be produced in all lighting conditions, including additional IR lighting. The camera is IP66, IP67, IP68, IP69K and IK10+ rated, making it a robust design. Its versatile enclosure enables wall and pendant mounting, while the integrated adjustable mounting allows for an angling of up to 45°. When angled, Oncam’s Angle Compensation Technology (ACT) corrects the view, straightening vertical lines in the scene.
Hikvision PanoVu series DS-2DP1636Z-D panoramic + PTZ cameras, with integration design, are able to capture panoramic images as well as close-up images to give consideration to both panorama and details. The panoramic images are captured by eight sensors, which could realise 360° panorama monitoring. The design of integration model and high speed PTZ offers the function of fast detail positioning over a panoramic area. Furthermore, with its advanced video analysis and multiple targets tracking algorithm, PanoVu cameras also feature a wide range of smart functions for multiple targets within the panoramic view field, including intrusion detection, line crossing detection, region entrance detection, and region exiting detection. The cameras could also output alarm signals to link the PTZ for tracking, benefitting users with great improvements in security efficiency. Camera features 1/1.9" Progressive Scan CMOS 360° view angle Up to 2 × 4096 × 1800@30fps 36X Optical Zoom Ultra-low illumination WDR 3D intelligent positioning function IP66
Avigilon Appearance Search™ technology is a powerful artificial intelligence (AI) search engine that is designed to make searching video as easy as searching the internet. Available in the upcoming Avigilon Control Center 6.10 video management software, the latest enhancement to Avigilon Appearance Search technology will allow users to select certain physical descriptions, such as hair and clothing color, gender and age. The new feature is designed to provide security operators enhanced speed and flexibility when conducting a search for a person.
Exhibiting at ISC West 2018: booth number 8045 Arecont Vision has unveiled the newest member of the MegaDome® feature-rich camera series. The new MegaDome UltraHD adds Tri-Mode capability, offering the user the choice of 12MP at 20fps, 4K at 30fps, or 1080p at 60fps, enabling delivery of outstanding video for a wide range of requirements. The true day/night indoor/outdoor MegaDome UltraHD dome camera is loaded with features, including a motorized remote focus/zoom P-Iris lens mounted in a 3-axis gimbal. The installer-friendly, IP66 environmental-rated and IK-10 impact-resistant housing encloses integrated IR LEDs with adjustable beam angle and LED intensity, SDHC onboard storage card slot, and mechanical IR cut filter. Wide dynamic range (WDR), NightView™ low light technology, binning mode for strong low light performance, SNAPstream™ (Smart Noise Adaptation and Processing) technology for reduced bandwidth without impacting image quality, and dual encoder H.264/MJPEG capabilities are built in as with other members of the MegaDome series. Features include privacy mask, motion detection, flexible cropping, bit rate control, multi-streaming, multicasting, forensic viewing, and non-integer scaling. The camera offers network protocols for security and management including SNMP, HTTPS, 802.1x, IPv4, and DHCP. Power requirements are met entirely via PoE (Power over Ethernet) or optionally via 12-24V DC. At the heart of all Arecont Vision-brand cameras is the in-house developed Massively Parallel Image Processing (MPIP) architecture, leveraging a built-in FPGA (Field Programmable Gate Array) integrated circuit. The architecture enables Arecont Vision cameras to be field upgraded with new advanced features and capabilities as they become available, while providing unmatched cybersecurity capabilities. All Arecont Vision cameras are integrated and tested with the industry’s leading VMS, video analytics, networking, storage, and other software and hardware through the company’s Technology Partner Program™ and subsidiary MegaLab™ technology center.
The Avigilon H4 Thermal camera line provides exceptional detection and performance with the combination of thermal imaging and patented Avigilon self-learning video analytics. Combining thermal imaging with video analytics Operating beyond the visible spectrum, the H4 Thermal camera line is designed to detect the movement of people and vehicles even in areas with poor visibility, challenging lighting conditions, absolute darkness and partly camouflaged scenes. By combining thermal imaging with Avigilon self-learning video analytics, the H4 Thermal camera provides a high level of detection accuracy of events that may require further investigation. Video analytics configuration and alarm notification H4 Thermal cameras easily integrate with Avigilon Control Center (ACC) video management software, for seamless analytics configuration and alarm notification, helping operators focus on critical events and take decisive action when it's needed most. In this series 320S-H4A-THC-BO50 320 x 256 < 4.3 mm lens 320S-H4A-THC-BO24 320 x 256 < 9.1 mm lens 320S-H4A-THC-BO12 320 x 256 < 18 mm lens
Complete access control and video management A browser and an internet connection are all that's required to access Vanderbilt’s latest addition to its cloud-based arsenal. ACT365 is a complete access control and video management solution. Ease of use and convenience are key ingredients to the product’s strength and depth in the field. ACT365 eases the installer's job for simple and quick installations and performing maintenance tasks remotely. The result is delivering ultimate control while saving time and money. With access to all sites from one online interface, installers can get more done, more easily, and in less time. Managing systems remotely Moreover, as ACT365 hardware is connected directly to the IP network, and no software needs to be installed as hosting is effectively outsourced, it ensures that the IT headaches of creating backups, VPNs, and port forwarding are things of the past. ACT365 also allows end-users the ability to manage their systems remotely including viewing live cameras. This remote monitoring capability makes it well-suited to multiple sectors. For example, dealing with early morning deliveries at a retail store is an ideal example of ACT365 in its prime. From the ACT365 app on their smartphone, the store manager can identify the courier through a live video feed and then remotely open the doors of the loading bay to allow the delivery to be made. The manager can monitor all of this remotely and once the delivery is finished, they can close the loading bay door and it will automatically rearm. Spotting misuse of gym membership Another instance of ACT365’s firepower can be seen at gyms or other types of membership clubs. If gym members are passing their access fobs to friends who are not members, ACT365 enables the gym manager to quickly match up access control events with relevant camera footage and email the clips to those members who are allowing their fobs to be misused. This is an effective way of ensuring the practice does not continue. As seen through numerous product demonstrations during IFSEC, ACT365’s features put the customer first. They eradicate once burdensome responsibilities that can now be promptly completed through the click of a button on mobile or desktop devices. Vanderbilt’s investment and innovation in cloud-based solutions harness the best efforts of the company’s core qualities – agility, adaptability, and dependability. Through the power of remote monitoring available from ACT365, Vanderbilt offers both installers and end-users convenience thorough simplicity.
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When people think of control rooms, images from James Bond movies or intense action stories come to mind. What they fail to realise is the incredible level of ergonomics, technology, precision and craftsmanship required to create a top-notch command and control room. “These are rooms of complex functionalities, where hundreds of elements must be integrated and function in sync,” says Jim Coleman, National Sales Manager, AFC Industries. Professional teams from several different industries must coordinate every single detail in order to ensure that functionality occurs each and every time. Reconfigurable Furniture For Control Rooms AFC Industries is one company that specialises in equipping control rooms for security and other applications. AFC Industries was established in 1994 as a family-owned business that focuses on the design and construction of ergonomic products. Their height-adjustable units guarantee the right height for standing desks as well as traditional sitting levels. The company produces an array of Command and Control ergonomic security consoles and mounting solutions. Modular racking systems facilitate efficient storage of electronic and audio-visual equipment. As technology changes, older traditional consoles are no longer a necessity. Many organizations instead are choosing to use lighter, less costly, reconfigurable furniture that allows more flexibility. Command Centers need to be able to reconfigure the space at will. Because most systems are housed in secure data centers, users should be able to quickly move their positions by relocating their workstations, utilising different network connections. Simple control room features, like those addressing lighting or operator comfort, can make the difference in a correct or incorrect decision during a crisis Emergency Operations Centers A positive trend driving the market for control rooms is an increase in emergency operations centers (EOCs), says Randy Smith, President of Winsted. “Everybody is concerned about what happens in an emergency,” says Smith, and the centers are popping up as a tool for emergency preparedness. It’s another environment where sit-stand work stations are the rule. Winsted’s product lines include stock modular and customized elements in good-better-best categories – from basic to lots of “bells and whistles;” jobs can be configured from modular elements or customized as needed. Customized Control Rooms For Seamless Operation There is a lot at stake in control room design: Lives can depend on how effectively a control room functions in an emergency. Control rooms should seamlessly accommodate both everyday occurrences and crisis situations, says Matko Papic, Chief Technology Officer of Evans Consoles. Better-operating control rooms can increase efficiency and reduce and/or mitigate risk. Simple control room features, like those addressing lighting or operator comfort, can make the difference in a correct or incorrect decision during a crisis. Addressing operator comfort can reduce the possibility of workers’ compensation claims. End users are seeing multiple benefits of creating a better operating environment, better sightlines, more comfort and attention to ergonomics. As a fully integrated control room solutions provider, Evans Consoles approaches the needs of a control room environment beginning in the conceptual/operational planning stage. They consider broad issues such as how information will be processed, the interface between technology and operators, and the cognitive and physical interactions of operators – understanding that these factors drive the layout and function of control rooms. After analyzing tasks to be performed in the environment, Evans lays out the consoles to meet those needs. Rather than a predesigned solution, each installation is tailored around a specific application. Read part 2 of our Control Rooms series here
Many end-users shell out the cash to acquire the newest high-end devices, plug in, and expect to be wowed A well-developed surveillance system can give a single security guard the power to see what otherwise might take a hundred pairs of eyes to see. But what happens when all the components are all connected and powered up, and the resulting image on the screen is, well, indiscernible, or, at the very least, terribly pixelated? Many end-users shell out the cash to acquire the newest high-end devices, plug in, and expect to be wowed. Often enough, however, what they see on the screen is not what they were expecting – and they wonder what they just paid for. In a good high-definition system, what factors actually create the best image quality? With so many variables involved, from the camera’s lens to the imaging algorithms to the monitor resolution – just to name the obvious ones – how do system integrators achieve the best on-screen images? The Lens The first component to handle light from an object, this may be the one most taken for granted in cameras of any sort. (Just try scratching or cracking one and you’ll agree.) In the days of analog cameras, it seemed that any old lens would do just fine. However, as the technology inside cameras evolved and more powerful sensors (more pixels) became available, engineers and programmers demanded more from lenses. Moreover, intelligent video content analyses would be impossible without high-accuracy lenses.In what way do lenses impact the image quality? The key factor here is light transmission. The quality of light passing through the lens itself will forever be critical to the quality of image reproduced. A lens made using ultra-precision molding aspherical technology achieves more accurate color, better light, and clearer images. Multilayer broadband anti-reflection coating further maximises a lens's light transmission while minimizing the residual reflection of light on the surface of each optical lens. Variables involved include the camera’s lens, the imaging algorithms and the monitor resolution When it comes to fabricating a megapixel lens that hits the mark, the materials used and the processes by which lenses are produced are the two most critical criteria. The materials most often used to create lenses are glass and specialized plastics. An HD lens made of ultra-low-dispersion optical glass – which, by using dispersion characteristics that are different from those of conventional optical glass – will deliver better HD performance. Machine-automated lens production using specialized plastics results in high output for camera producers, and the lenses produced are more uniform in design and quality. For an HD vari-focal lens, its image quality depends largely on the precision of the cam. The cam rotates to drive the zoom and focus lens groups forward and backward for a smooth continuity of focal length and adjustment of the focal point. A lack of precision with the cam inevitably causes an offset or tilt of the lens' optical axis during zooming and focusing, leading to a serious loss of image quality. Lens production is a delicate balancing act. The slightest errors or imperfections will be very noticeable when tested Lens production is a delicate balancing act. The slightest errors or imperfections will be very noticeable when tested. The features of a lens that affect image resolution, clarity, and contrast must be perfect. Achieving uniformity of image resolution at the center and the edges of a lens requires high-precision machinery. And once a lens has been properly crafted, the assembly of the camera, the lens housing materials, and the alignment of the optical axis demand utmost accuracy. To put it mildly, quality control must be rigorous. Image Signal Processing As light passes through the lens, the sensor captures it and converts it to data. Raw RGB data is transmitted by the camera sensor and undergoes Image Signal Processing (ISP) such as noise reduction, white balance, WDR, curve correction and color correction, etc. The data is then transformed to true colors for each pixel point, for people to see images that look “normal” to the human eye. It is the Image Signal Processing that defines the final image quality on the screen. Collecting data in different conditions is vital, for instance, outdoor data should be analyzed with natural light on days with sun, overcast, rain, and fog, at dawn, at dusk, and so on. Similarly, when using cameras equipped with infrared sensors, testing the IR light signals in various conditions is necessary as well. Actual image performance depends upon variables such as low light illumination, signal to noise ratio, dynamic range of light, and more. ISP algorithms aim at increasing the signal data and decreasing noise. Cameras with Wide Dynamic Range (WDR) will yield improved video imaging with both background and foreground objects in high contrast or high-backlight environments, maximising the amount of detail in brighter and darker areas in one field-of-view. In scenes with low contrast and low light, the sensors deliver digital image signals and at the same time send some amount of digital noise that directly hinders image clarity. Three-dimensional digital noise reduction (3D DNR) removes unwanted artifacts from an image, reducing graininess. Where cloudy weather poses a challenge, auto-defogging technology helps to identify the density of fog or rain with gray-white color ratio analysis, and imbues images with true color reproduction. Ramping up the megapixels and frame rates yields great video, but also results in more bandwidth used and more storage occupied Matching Megapixels To Image Quality When the factors mentioned above line up well, correlating cameras and monitors creates the best viewing experience. When a high definition camera is in place, a monitor with a high resolution will display images much more clearly. But if the monitor’s resolution is low, it will not deliver the high-quality images expected – or possible – from that HD camera. For an 8 MP camera, for instance, users do best to apply monitors with 4K × 2K resolution. Though common sense, this deserves to be mentioned because users might decide to upgrade their systems with 4K monitors, but with perhaps 1.3 MP cameras installed. In such a scenario, there’s no guarantee the on-screen image quality will automatically improve. Managing Data And Bandwidth In terms of a complete, high definition surveillance system, when the right factors come together and the calibrations are set, image quality – even in a standard HD 1080p setup – can be extremely good. The final piece of the puzzle is managing the data. Ramping up the megapixels and frame rates yields great video, but also results in more bandwidth used and more storage occupied. Squeezing bandwidth threatens image quality and clarity, but keeping ample room for signal transmission and storage will eventually increase the overall cost for customers. Is it possible for integrators to optimize their customer’s system and, at the same time, stay within budget constraints? Luckily, it can be done. Squeezing bandwidth threatens image quality and clarity, but keeping ample room for signal transmission and storage increases the overall cost for customers To do this, a more efficient video encoding solution would allow an improvement in compression efficiency of 40–50% over H.264. Improvements to algorithms that are adaptive to a particular scene give users control over bitrate. Another option would be to start recording video only when an event triggers an alarm, since most security guards are primarily concerned with moving objects rather than a scene’s generally stagnant background. This intelligently helps optimize bandwidth and storage consumption. Another method is to use a single panoramic or fisheye camera in place of several HD cameras for coverage – the reduced number of security devices will reduce bandwidth demands and the rate of storage consumption as well. Getting The Best Image Quality Now let’s put this all together. Naturally, integrators and users will refer to their product specs to understand features and functions, fine-tuning each component for best results. Also, as suggested above, users should select an HD camera comprehensively in terms of lens performance, pixels, image quality, and overall system compatibility and performance. Next, matching the backend device and management platform should be carefully considered in a complete security system. Installing equipment that has been engineered for a given scene is a must, along with strategising how to get the most coverage out of the lowest number of cameras. Finally, product quality, warranty, price, and on-going customer service are all important factors that customers should take into account as well.
Lighting, or the absence of it, is one issue that significantly affects a camera’s video quality Video surveillance has rapidly advanced over the last two decades. Today, integrators can purchase IP cameras offering complete network control, megapixel cameras with HD imaging, and PTZ cameras with remote directional control. Although these features are impressive, they don't solve all the challenges that surveillance solutions face. Importance Of Lighting For Camera Performance Lighting, or the absence of it, is one issue that significantly affects a camera’s video quality. Many think street lamps emit a sufficient amount light for surveillance. The truth is they don’t provide enough illumination nor are they strategically placed to optimize object capture and video monitoring. To respond to the need for better lighting, video manufacturers have introduced cameras with built-in lights, which have worked to a limited degree. Today, the best lighting solution for a surveillance system is an independent illuminator. Let’s look at why. Built-In Illuminator Challenges Integrated cameras, or cameras with built-in infrared (IR) illuminators, are convenient. These surveillance and lighting all-in-one solutions offer the ultimate ease of use. Common types of infrared security cameras are day/night or black and white cameras. They often have several IR light-emitting diode (LED) lights surrounding the lens. These integrated night vision cameras are effective for short distance applications, as they typically capture objects within 100 feet. Although infrared cameras are useful for close range monitoring, there are significant challenges that occur when deploying these systems Although infrared cameras are useful for close range monitoring, there are significant challenges that occur when deploying these systems. Integrated cameras often create hotspots. A hotspot develops when the camera lens angle is wider than the LED field of view. For example, you may have a camera whose angle is 90 degrees, but your angle of illumination is only 30 degrees. The effect is similar to when a person shines a flashlight on someone and takes a picture. The person or object is washed out. When LEDs are inside a camera and next to other electronic components, heat can build up. The heat then attracts insects, which can trigger motion detection and set off false alarms. Other times, spiders are attracted to the light and will spin webs around the camera lens, obstructing the camera’s view. Moreover, the heat buildup actually erodes the LED light, shortening its lifespan. Once the lights burn out, there is no easy way to replace it. Often, the end user has to replace the entire camera. However, the better option is to install a separate light source. Independent illuminators are the premier option today based on their coverage and flexibility Eliminating Hotspots Independent illuminators are the premier option today based on their coverage and flexibility. Whereas the built-in, fixed infrared lights have narrow angles that only produce partial coverage, separate illuminators are available in a variety of angles that can achieve total coverage. For example, when working with a panoramic or PTZ camera, an integrator can install a triple mounting bracket that holds three, 120-degree illuminators that can be angled in different directions. The result is 360 degrees of light. In the same way, an integrator can pair a dome camera with a 10-degree illuminator to target a specific area of interest such as a gate or doorway. By deploying a light whose angle of illumination directly corresponds with the camera lens angle, hotspots are eliminated. End users can enjoy consistent lighting and a clear picture. Typically, you can purchase lights that yield 10, 30, 60, 100 and 120 degrees of coverage. Preserving LED Life For independent illuminators, heat accumulation is not a concern. In infrared cameras, all of the heat is centralized in one area – the camera lens. Separate light sources are designed differently. The lights are usually arranged in rows, which allow the heat to dissipate in all directions. This not only deters insects, but also preserves the life of the LED. Increasing Distances In an era where cameras are capturing more data than ever before, it’s important to maximize your camera’s storage space Another advantage of stand-alone illuminators is that they capture light at longer distances. On a street corner where an infrared integrated camera provided 10 degrees of coverage, it could capture objects up to 100 feet. On the other hand, an independent infrared light emitting 10 degrees illumination can cover over 900 feet. This is more than 9x the average of an integrated camera. Lastly, deploying a separate light source frees up bandwidth on the camera. In an era where cameras are capturing more data than ever before, it’s important to maximize your camera’s storage space. Independent illuminators help you do that. Spreading Awareness It’s clear that independent light sources provide more powerful, adjustable illumination. However, if there’s not a general understanding of the critical need for lighting in security solutions, knowledge on various lighting products will be a moot point. Generally speaking, many professionals in the security sector are in the dark when it comes to lighting. People forget that that without light, there is no video and that a camera will only pick up as much video as the light in its environment allows for. So what can you do? You can spread awareness among your peers about the importance of proper illumination. Share training resources and educational webinars. Review case studies and testimonials. Empower your team and decide to invest in high-quality lighting.
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