Mesh generation from depth images

摘要

Systems and methods for mesh generation from depth images are provided. According to one aspect, a method executable by a compression device for sending compressed depth information is provided. The method may comprise, at a compression module executed on the compression device, receiving a depth image of a scene from a depth camera. The depth image may include a matrix of pixels, each pixel in the matrix including a depth value indicating a depth of an object in the scene observed at that pixel. The method may further comprise compressing the depth image into a tree data structure, and sending the tree data structure via a communication path to a rendering device for generating a mesh of the scene at the rendering device.

主权项

1. A method executable by a compression device for sending compressed depth information, the method comprising, at a compression module executed on the compression device:
receiving a depth image of a scene from a depth camera, the depth image including a matrix of pixels, each pixel in the matrix including a depth value indicating a depth of an object in the scene observed at that pixel; compressing the depth image into a tree data structure without first generating an initial mesh from the depth image, such that a mesh of the depth image can be generated from the tree data structure, wherein compressing the depth image into the tree data structure comprises:
instantiating the tree data structure having nodes, each node having node data representing a corresponding group of pixels in the depth image;assigning groups of pixels from the matrix of pixels into nodes of the tree data structure;identifying maximum and minimum depth values of the corresponding group of pixels for each node in the tree data structure;allocating child nodes to represent the corresponding group of pixels for that node if the maximum and minimum depth values are not within a threshold distance of each other; and sending the tree data structure via a communication path to a rendering device for generating a mesh of the scene at the rendering device.