ST has released a new line of global shutter image sensors with embedded optical flow feature which is fully autonomous with no need for host computing/assistance. This can provide savings in power and bandwidth and free up host resources that would otherwise be needed for optical flow computations. From this optical flow data, it is possible for a host processor to compute the visual odometry (SLAM or camera trajectory), without the need for the full RGB image. The optical flow data can be interlaced with the standard image stream, with any of the monochrome, RGB Bayer or RGB-IR sensor versions.
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