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A high-frame-rate dense motion vector field generation processor employing an efficient data manipulation scheme has been developed. The computation result of detecting a motion vector (MV) at each pixel location is reused in the adjacent location. As a result, the size of a best-match searching circuitry for MV detection has been reduced to 1/10 of that without data reuse. This allows us to implement...
A block-matching-based CMOS optical flow sensor architecture has been developed for real-time processing of moving images. In this architecture, an array of SIMD (single instruction multiple data) units calculate SAD (sum of absolute difference) values using only data from nearest-neighbor-units. As a result, it has become possible to carry out the block matching algorithm very efficiently with a...
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