A motion capture data restoration method, system and motion capture system

Abstract

The invention discloses a data repairing method for motion capture. The method comprises the following steps: acquiring two or more than two frames of motion image data of a plurality of marked points on a moving object and respectively tracking the motion tracks of the plurality of marked points so as to determine the missing points and efficient points of the frames; computing the parameter sets of two or more than two efficient points adjacent to the missing point in the previous frame and the sum of the distances between the missing point and the two or more than two efficient points; andrespectively computing the weights of the motion vectors formed by the two or more than two efficient points and the points corresponding to the two or more than two efficient points in the current frame according to the parameter sets and the computed sum of the distances between the missing point and the two or more than two efficient points and obtaining the position of the missing point in the current frame by combining the computed weights and the parameter sets. When the data repairing method is applied to motion capture of the facial expressions, motion mechanisms of facial muscles which belong to a nonrigid structure are thoroughly considered, thus improving the repairing precision of the missing points.

Description

technical field [0001] The invention belongs to the technical field of motion capture, and in particular relates to a data restoration method, system and method for motion capture. Background technique [0002] In recent years, with the rapid development of the computer graphics (Computer Graphics, CG) industry, motion capture has become increasingly mature, and has become a widely used technology that can truly reproduce the movement details of moving objects. Motion capture is a technology used to accurately measure the movement of moving objects in three-dimensional space. Based on the principle of computer graphics, several video capture devices arranged in space collect moving images of moving objects, and then the moving images The image data is processed to restore the spatial motion of moving objects. As a branch of motion capture applied to the human body, facial expression motion capture is a technology that applies motion capture to facial expression animation pr...

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Problems solved by technology

[0005] The purpose of the embodiment of the present invention is to provide a data restoration method for motion capture, to solve the problem that the data restoration method for motion capture applied in the field of facial expression motion capture provided by the prior art does not consider the movement mechanism of human face muscles, and the lack of restoration The problem of low accuracy of point data

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