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A Dynamic Virtual Human Simulation Method Based on Kinetic Energy Thermal Distribution Map

A simulation method and distribution map technology, applied in simulators, instruments, control/regulation systems, etc., to achieve the effect of ensuring physical realism, less calculation, and rapid construction

Active Publication Date: 2021-10-15
EAST CHINA NORMAL UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] However, motion capture data only has spatial transformation information, and using only spatial transformation information to guide physics-based virtual human motion has limitations.

Method used

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  • A Dynamic Virtual Human Simulation Method Based on Kinetic Energy Thermal Distribution Map
  • A Dynamic Virtual Human Simulation Method Based on Kinetic Energy Thermal Distribution Map
  • A Dynamic Virtual Human Simulation Method Based on Kinetic Energy Thermal Distribution Map

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Experimental program
Comparison scheme
Effect test

Embodiment

[0131] The present invention is based on the dynamic virtual human simulation method based on the kinetic energy thermal distribution diagram, and the effect display is as follows:

[0132] figure 1 Shown is a kinetic energy thermal profile constructed using motion capture data from a walking class. The motion capture data in this figure uses 315 frames, represented by the abscissa. The ordinate represents the kinetic energy change of representative joints, from top to bottom are left pelvic joint, left leg joint, left shoulder joint, left elbow joint, right pelvic joint, right leg joint, right shoulder joint, right elbow joint . The dotted box in the figure represents a segmented motion segment whose color is within the segmentation threshold.

[0133] figure 2 It shows the presentation process of the physics-based virtual human for walking and running movements. Figure a shows the walking process, and picture b shows the running process. The simulation process is rende...

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Abstract

The invention discloses a dynamic virtual human simulation method based on a kinetic energy thermal distribution diagram, the steps of which are as follows: 1) collect motion capture data, combine the physical attributes of the virtual human, and construct the movement process of the virtual human in the Riemannian geometric space 2) Analyze the motion process according to the kinetic energy thermal distribution graph, segment the motion process according to the color changes in the graph, and extract Key control parameters and conversion time; 3) The posture-based virtual human controller can track the key postures in real time; 4) Calculate the compensation force according to the kinetic energy change of the posture, and realize the real-time motion simulation of dynamically controlling the virtual human . The application of the present invention can effectively control the real-time interaction between the virtual human and the virtual environment in real time, enhances the robustness of the existing method for interacting with the virtual environment, and improves the sense of reality of physical simulation of virtual human movement.

Description

technical field [0001] The invention belongs to the field of computer graphics, and specifically relates to a dynamic virtual human simulation method based on a kinetic energy thermal distribution map. Part of the technology includes motion capture data analysis, virtual proportional differential controller principle, and virtual compensation force calculation. Background technique [0002] In the virtual world, the movement of bipedal simulation virtual human has always been an important research direction in the field of computer graphics, and has a wide application prospect in the field of computer graphics software such as game development and film production. Traditional virtual human animation simulation uses motion capture equipment to collect and reproduce human animation. Its limitation is that it cannot interact with the virtual environment in real time and can only edit and splice the collected animation to complete animation reuse. The physics-based virtual human...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G05B17/02
Inventor 郭谚霖王长波李晨
Owner EAST CHINA NORMAL UNIV
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