Motion synthesis method based on spherical nonlinear interpolation

A non-linear interpolation, motion synthesis technology, applied in the computer field, can solve the problems of limited synthesis content and complex control of motion synthesis methods, and achieve the effect of assisting psychotherapy

Inactive Publication Date: 2020-06-19
NANJING UNIV OF INFORMATION SCI & TECH
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Problems solved by technology

[0004] In order to solve the above problems; the present invention provides a motion synthesis method based on spherical non-linear interpolation, which is used to synthesize real human bod

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  • Motion synthesis method based on spherical nonlinear interpolation
  • Motion synthesis method based on spherical nonlinear interpolation
  • Motion synthesis method based on spherical nonlinear interpolation

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Embodiment Construction

[0014] Below in conjunction with accompanying drawing, technical scheme of the present invention is described in further detail:

[0015] Such as figure 1 ; Firstly, the motion law and the first and last frames of the motion are extracted from the training data, and then two dictionaries—the motion frame dictionary and the motion law dictionary—are learned through joint dictionary learning. Taking the first and last frames of the motion as input, the sparse representation is obtained in the motion frame dictionary, and the motion law is reconstructed in the motion law dictionary according to the sparse representation, and finally a complete motion sequence is generated through spherical interpolation.

[0016] The invention discloses a motion synthesis method based on spherical nonlinear interpolation. The motion synthesis method specifically includes the following steps:

[0017] Step 1.1: Prepare data for training and standardize joint coordinates: Collect several motion se...

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Abstract

The invention discloses a motion synthesis method based on spherical nonlinear interpolation, and relates to the field of computers. The method comprises the following specific steps: preparing data training and standardizing joint coordinates; extracting a motion law of the motion sequence, learning a motion law dictionary and a motion frame dictionary according to standardized motion data, solving sparse representation coefficients of the head frame and the tail frame on the motion frame dictionary by using an orthogonal matching pursuit algorithm, reconstructing the motion law on the motionlaw dictionary, and synthesizing a complete motion sequence; the method has the advantages that in the field of film and television industry, the method can be used for synthesizing 3D human motion to drive virtual characters; in the field of robots, some special actions can be synthesized to drive a humanoid robot; in the field of medical rehabilitation, the method can be used for synthesizing normal movement postures of patients with dyskinesia so as to assist psychological treatment.

Description

technical field [0001] The invention relates to the field of computers, mainly for human body motion modeling, in particular to a motion synthesis method based on spherical nonlinear interpolation. Background technique [0002] The motion data acquired by the capture device can not only be used to study the characteristics of human motion, such as motion pattern recognition and motion pattern tracking, but also derive some other promising applications, including animation production, robot drive, sports rehabilitation, etc. However, the cost of motion capture is extremely high and the process is complicated, so motion synthesis technology has become an effective means to solve the problem of high cost of motion data acquisition. [0003] The existing motion synthesis algorithms tend to develop in two directions. One direction is to avoid the negative impact of the user's non-professional operations on the synthesis process and synthesis results. Such methods often only leave...

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Application Information

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IPC IPC(8): G06K9/00G06K9/62
CPCG06V40/25G06V40/20G06V20/46G06F18/214
Inventor 夏贵羽薛鹏马芙蓉
Owner NANJING UNIV OF INFORMATION SCI & TECH
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