The automatic or semi-automatic analysis of data plays an increasingly important role in video security technology. Here, the image quality is decisive for the result of the analysis. At the GPEC 2020 trade fair, Messe Frankfurt, Europe's closed specialized exhibition for police and security authorities, from 18 to 20 February 2020, Hall 11, Booth E068, the German manufacturer of video information technology Dallmeier will show visitors how they can implement future-proof video analysis applications. A lecture by Dallmeier Safe City expert Frank Salder at the conference "Video Intelligence 2020" completes the trade fair presence.

Precisely defined image quality

There is hardly a better way to extract all kinds of data from complex contexts with relatively little effort than a video image. The possibilities range from "crowd analysis" for counting people in public spaces to the securing of "sterile areas" with the help of AI-based object classification. Despite all the enthusiasm for such innovative assistance systems, one thing is often underestimated; the importance of data quality.

As a result, according to the rule "Quality In, Quality Out", the quality of the analysis results can of course only be as good as the image quality and thus the quality of the input data. Already during the planning stage Dallmeier offers customers the possibility to precisely define the so called "pixel density" values defined according to DIN EN 62676-4, such as 62.5, 125, 250 pixels per meter (px/m) in every part of the monitored area, depending on whether, for example, 62.5 px/m is required for an AI-based object classification or 250 px/m for court usability to identify individuals.

Patented Panomera technology

The imageless data acquisition to generate anonymized data also plays an important role

The patented multifocal sensor cameras "Panomera" from Dallmeier, which have recently been awarded the European patent in addition to the German patent for their functionality, can provide the required minimum resolution for video analysis even over large areas. Even if several operators independently zoom in on relevant events, the system continues to record the remaining scene.

This combination of the advantages of PTZ and megapixel cameras enables police and security officers to obtain an optimal overview of the situation, while still being able to search with the required minimum resolution, even within recorded footage. Since a Panomera system replaces many individual single-sensor cameras and their infrastructure, operators can keep the total cost of ownership to a minimum.

Data protection

Dallmeier's AI-based systems support emergency services not only by means of an intelligent pre-selection of events, people counting, automatic object tracking or forensic evaluation. The imageless data acquisition to generate anonymized data also plays an important role. Regardless of the video analysis application, the German manufacturer Dallmeier equips its technology components with state-of-the-art functions for data protection and data security. This ensures that police and security authorities can use Dallmeier systems in the most diverse scenarios in absolute compliance with data protection regulations, e.g. according to GDPR.

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