Human motion detrection using a WFOV camera

dakrause
dakrause
edited July 2021 in SecuritySpy
I am using a wide field of view (105 deg horizontal) camera at 30 fps, 4 MP. As expected, human motion detection doesn't work at more than about 20 ft from the camera. I need to keep the wide field of view for coverage, but what about using an 8 MP camera at 15 fps. Would doubling the number of pixels work better with your algorithm using the same FOV? Another way of looking at it is... does the probability of detection depend on the absolute number of pixels seeing motion, or the percentage of pixels in the total FOV? Thanks.

Comments

  • Ben
    Ben
    There are a few factors at play here, but mainly the person has to be a certain size in the frame to be accurately detected. This is partly a pixel limit, so a higher-resolution camera may help a bit, but it's also partly an intentional filter in SecuritySpy, to avoid tiny moving objects from triggering motion detection. If you want to detect people further away, multiple cameras with tighter fields of view are going to be much more effective than one camera with a very wide field of view.

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