A functional CMOS image sensor with non-destructive intermediate imaging mode for low-power motion vector estimation

摘要

In order to implement a low power motion vector estimator we propose a CMOS image sensor with non-destructive readout scheme which captures high-speed intermediate pictures and fully accumulated pictures and an iterative block matching which estimates motion vector of video rate pictures using intermediate pictures with high accuracy and a reduced computational cost. This piper reports the prototyping results of the proposed sensor with the ability to cancel the fixed pattern noise in the intermediate images and new results of iterative block matching. The normal operation of the proposed sensor is confirmed and the iterative block matching is confirmed to estimate motion vectors sufficient resolution.