Abstract: A positioning system based on a sector depth camera is disclosed. The positioning system comprises: a sector depth camera used for acquiring 3D point cloud data within a sector range of a preset angle in a horizontal direction and transmitting the 3D point cloud data to a positioning optimization module; an image acquisition device used for acquiring image data and transmitting the image data to the positioning optimization module; an inertial sensor used for acquiring IMU data and transmitting the IMU data to the positioning optimization module; and the positioning optimization module used for receiving the 3D point cloud data transmitted by the sector depth camera, the image data transmitted by the image acquisition device, and the IMU data transmitted by the inertial sensor, and optimizing the 3D point cloud data based upon the image data and the IMU data to obtain an optimized location information.

Abstract: The disclosure discloses a method for building a local point cloud map and a visual robot. According to the method for building the local point cloud map, point clouds which reflect a position of a large-range region around a robot are sampled according to a preset salient pose change condition; point clouds at different height positions are described in the form of a 3d histogram.

Abstract: The disclosure discloses a method for building a local point cloud map and a visual robot. According to the method for building the local point cloud map, point clouds which reflect a position of a large-range region around a robot are sampled according to a preset salient pose change condition; point clouds at different height positions are described in the form of a 3d histogram.