Maybe this is known to others, but if not....
When in IP config on a PC, if you go to Event > Video Detection > Detection Area you can set the motion detection sensitivity and threshold for 4 separate areas. When on this screen that shows the camera area with the overlying grid, once you set up the area(s) and the overlying grid boxes (pixels for this discussion) are translucently colored you can watch in real-time what the motion detection detects and how it works.
When viewed in real time on the PC screen, individual colored pixels will turn grey as motion is detected in that pixel and more pixels turn grey for a given motion in a given area as the sensitivity is turned up. The motion detection notifications, recording, emails is then triggered if the number of pixels that are simultaneously grey at any given time goes above the chosen threshold.
So:
Sensitivity = how much image change in a given pixel is needed to trigger that pixel
Threshold=number of pixels with motion detected at any given time needed to trigger chosen event
To the right of the camera view with overlying grid is a graph showing time at the bottom and number of pixels with detected motion (the real-time greyed out pixels) and a threshold line. Detected motion (any number of greyed pixels) below the threshold shows up at a green spike and detected motion above the threshold shows up as a red spike.
So with this information you can try to set up the motion detection the best you can for your area. Probably first just choose the whole camera area covered with a mid-level sensitivity and then walk or drive or do whatever you want to detect in the camera view and get a sense of how many squares in which areas of the view detect motion and then adjust from there. You'll either have to record the PC screen, walk around with a laptop, or have two people involved to be able to see what is being detected during the tested motion.
Even with the above information, I don't think in certain areas (my driveway) for me I can really make the motion detection detect work and detect people walking without getting lots of false alarms from car headlights and moths at night, but I thought it may help others at least to know what the settings really do.
Charles
What I've learned about motion detection settings
Re: What I've learned about motion detection settings
Thank you, Charles, this was helpful.
Re: What I've learned about motion detection settings
You have tried motion detection on a laptop which is used for video. This is a good post to learn video making and view. I can not do that because my laptop is getting an issue in hp touchpad not working