masking increases typical change level?


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Abgeschickt von Toby am 15 September, 2009 um 22:50:25:

Hi. If I set up SVC to observe an empty room, the typical baseline (nothing moving) Calculated Changes level (observed in the Settings dialog) might be about 100k. But I've noticed that if I mask out half of the room and check again, the typical baseline Calculated Changes level always increases, say to 150k in our example. This is still with nothing moving in the room, no change in lighting or anything else.

Why does this happen? Thank you.



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