Abstract: The present disclosure provides a positioning method utilizing a navigation satellite system, including receiving, by a receiver on a target object, a signal from the navigation satellite system; obtaining, based on the signal, pseudo-range information and phase information; calculating distance consistency information of a plurality of particles with respect to the pseudo-range information; calculating phase consistency information of the plurality of particles with respect to the phase information based on the wavelength of the signal; and calculating weights of the plurality of particles based on the distance consistency information and the phase consistency information to estimate positioning information of the target object through a particle filter. In addition, the present disclosure also provides a positioning apparatus and a computer-readable storage medium that can perform the method described above.

Abstract: A parameterization method for point cloud data, and a device includes performing semantic segmentation on a plurality of three-dimensional data points of point cloud data in a spatial coordinate system to obtain at least one semantic object, the at least one semantic object corresponds to a plurality of three-dimensional semantic data points. The parameterization method for point cloud data further includes performing parametric fitting on the plurality of three-dimensional semantic data points to obtain spatial geometric parameters of the at least one semantic object corresponding to the plurality of three-dimensional semantic data points in the spatial coordinate system. In addition, a map construction method is further provided. By adopting the above technical solution, the automation of constructing a semantic map based on the point cloud data can be achieved.

Abstract: A graphical instruction data processing method and apparatus, and a system are disclosed, to help reduce a quantity of transmitted graphical instruction data, and lower a requirement on bandwidth. Aspects of the disclosure provide a method for processing graphical instruction data. The method includes obtaining, by a server device in a cloud interactive system, graphical instruction data of a frame, and determining whether the frame satisfies a key frame setting condition. Further, the method includes when the frame is determined to fail to satisfy the key frame setting condition, comparing the graphical instruction data of the frame with graphical instruction data of a current key frame, to obtain differential data, and sending the differential data to user equipment in the cloud interactive system. The user equipment reconstructs the graphical instruction data of the frame according to the current key frame and the differential data.

Abstract: A graphical instruction data processing method and apparatus, and a system are disclosed, to help reduce a quantity of transmitted graphical instruction data, and lower a requirement on bandwidth. Aspects of the disclosure provide a method for processing graphical instruction data. The method includes obtaining, by a server device in a cloud interactive system, graphical instruction data of a frame, and determining whether the frame satisfies a key frame setting condition. Further, the method includes when the frame is determined to fail to satisfy the key frame setting condition, comparing the graphical instruction data of the frame with graphical instruction data of a current key frame, to obtain differential data, and sending the differential data to user equipment in the cloud interactive system. The user equipment reconstructs the graphical instruction data of the frame according to the current key frame and the differential data.