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

A data repair and motion capture technology, applied in the field of motion capture, can solve the problems of low data accuracy of missing points and failure to consider the movement mechanism of human face muscles, etc.

Active Publication Date: 2011-12-21
DALIAN UNIV
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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

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

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Embodiment Construction

[0049] In order to make the object, technical solution and advantages of the present invention clearer, the present invention will be further described in detail below in conjunction with the accompanying drawings and embodiments. It should be understood that the specific embodiments described here are only used to explain the present invention, not to limit the present invention.

[0050] figure 1 The flow of the motion capture data restoration method provided by the embodiment of the present invention is shown.

[0051] In step S101, two or more frames of motion image data of multiple marker points on the moving object are collected, and the motion trajectories of the multiple marker points are tracked respectively according to the collected motion image data, so as to determine missing points and effective points of the frames. point.

[0052] The moving image data may be the positions of multiple marking points on the moving image, specifically the coordinates of the mar...

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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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Application Information

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IPC IPC(8): G06T5/50
Inventor 张强梁小英魏小鹏
Owner DALIAN UNIV
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