Patent ID: 7589774
Filing Date: 2009-09-15
Classification: H04N

Abstract:
1. An image pickup apparatus comprising: image pickup means for picking up an object image, wherein the image pickup means is arranged to be non-destructively readable; driving means for driving said image pickup means so that a first frame image picked up by said image pickup means is non-destructively read out from said image pickup means when a first time period elapses without reset of said image pickup means during the first time period after said image pickup means is reset, a second frame image picked up by said image pickup means is non-destructively read out from said image pickup means when a second time period elapses without reset of said image pickup means during the second time period after the first time period, and a third frame image picked up by said image pickup means is non-destructively read out from said image pickup means when a third time period elapses without reset of said image pickup means during the third time period after the second time period; and subtraction means for effecting a subtraction process between said first and second frame images derived by non-destructive reading, and for effecting a subtraction process between said second and third frame images derived by non-destructive reading, and for outputting frame images resulting from the subtraction processes sequentially.