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The April 2021 New Products show is complete. All videos may be watched on the Shows...
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The different pixel density requirements for person, face, and vehicle detection.
Person Detection performance and most...
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A Series
Exacq's A-Series offers high-density analog DVR replacement (up to 64 analog channels), with hybrid IP/Analog options, and...
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The UK's population density is 9x that of the US and we believe this helps UK distributors have more of an impact serving a...
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...measurements, or other aspects of a human form (including face)
Challenges to Overcome
Turbulence, pixel density, angle/pitch, and lack of data are all challenges to identification at height and distance. At a...
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...fever screening guidelines, does not use a blackbody, and would require a large FoV/have a low pixel density. The FDA guidelines state that fever cameras should only be used on one person at a...
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Advanced Analytics Examples
Nanchang city's bid in 2018 specifically asked for "population density" analytics that would alert the police in cases such as:
if the camera detected a "high...
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... Dartmouth told IPVM the 32 K3s were placed in areas that had high foot traffic or density:
Placement was based on foot traffic patterns and population density of the...
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...generally worked well, however, it suffers from limited model support and requires relatively high pixel density (~70ppf in our testing) limiting usefulness. Atypically, but helpfully, it offers "Incorrectly...
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Density presented its cloud-based occupancy sensor to deal with Coronavirus at the May 2020 IPVM...
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...and sensor sampling in order to reconstruct the original color stream to nine times its captured pixel density.
They are developing their own camera hardware as well as licensing their technology to...
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1:30pm OpenPath: Raised $27 million for cloud mobile access control
2:00pm Density: Wants to improve access control with realtime analytics- backed by the same investors of Ring,...
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Looking Down to Avoid Face Recognition
Crowds / High-Density Performance Issues
Liveness Detection
Accuracy
Ethical Concerns
Face Recognition...
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Moreover, like with cameras generally, the pixel density has a factor with lower pixel density increasing accuracy issues:
Trying to get a reading of...
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...tests, Anyvision was able to accurately recognize subjects at ~85-90 PPF in well lit scenes, lower pixel density than many other platforms, generally requiring 120 PPF or more.
Few False Identifications:...
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...varifocal ones common in surveillance, frequently have degraded image quality relative to what pixel density / ppf metrics would estimate. If you are using PPF / PPM to plan your deployments, you may need...
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This approach has key drawbacks compared to those using standard rotation:
Lower pixel density: Compared to cameras which use 1080p imagers in their normal rotation, those rotating the...
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How to Calculate Pixel Density
Calculating pixel density depends on two inputs/factors:
The number of horizontal pixels in...
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... However, the broader the area you cover, the lower the pixel density / PPF will be, which will significantly reduce details captured in any direction. We examine...
