Bit depth layered coding with nonlinear mapping of color image components for visual odometry

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In case of retrieving environmental information with a crawler robot in a disaster site, it is required to use a robot which can automatically find its own pass as precise as possible. This research also considers collaboration among many such robots via a temporary internet communication system in the disaster site. Introducing the layered coding system especially tuned for robot-to-robot communication, it became possible to avoid congestion problem of packet transmission. It also became possible to realize precise visual odometry introducing the nonlinear color mapping.