CONSISTENT TESSELLATION VIA TOPOLOGY-AWARE SURFACE TRACKING

摘要

Consistent tessellation via topology-aware surface tracking is provided in which a series of meshes is approximated by taking one or more meshes from the series and calculating a transformation field to transform the keyframe mesh into each mesh of the series, and substituting the transformed keyframe meshes for the original meshes. The keyframe mesh may be selected advisedly based upon a scoring metric. An error measurement on the transformed keyframe exceeding tolerance or threshold may suggest another keyframe be selected for one or more frames in the series. The sequence of frames may be divided into a number of subsequences to permit parallel processing, including two or more recursive levels of keyframe substitution. The transformed keyframe meshes achieve more consistent tessellation of the object across the series.

主权项

1. A method for consistent tessellation, comprising:
providing a first sequence of frames, each frame of the first sequence having one of a first plurality of computational representations of one or more three-dimensional objects depicted in each frame; providing a wire frame mesh corresponding to each computational representation not including a wire frame mesh; selecting one frame of the first sequence as a first keyframe, the first keyframe having a first key mesh corresponding to a respective computational representation from the first plurality; for each frame in the first sequence of frames not selected as the first keyframe, calculating a first transformation field describing a transformation of the first key mesh to approximate the computational representation of the surface of the one or more three-dimensional objects depicted in the respective frame; and for each frame in the first sequence of frames not selected as the first key frame, substituting the first key mesh transformed according to the respective transformation field for that frame in place of the respective one of the first plurality of computational representations.