Method and system for acquiring three-dimensional human body motion in real time on line

Abstract

The invention discloses a method and system for acquiring the three-dimensional human body motion in real time on line, comprising the following steps: (1) marking three-dimensional sign points, constructing a linear dynamic system and a rigid constraint, setting and screening the thresholds and the point matching cost weights of the candidate point sets of the three-dimensional sign points, initializing data according to the marked three-dimensional sign points, and training the linear dynamic system; (2) screening the candidate point sets, calculating the matching cost, and marking the results; (3) reconstructing the human body posture of the current frame; (4) constructing the relative positions of all three-dimensional sign points under the human body posture of the current frame, and recovering the positions of the lost three-dimensional sign points; and (5) updating the linear dynamic system, the rigid constraint, the thresholds and the weights. The method solves the problem that the precision of the human body motion data reconstructed in real time in the prior art is not high. The reconstructed human body motion data has good intuitive visual effects.

Description

technical field [0001] The invention relates to the fields of computer vision and pattern recognition, in particular to a real-time online acquisition method and system for three-dimensional human motion. Background technique [0002] In recent years, the development of motion capture technology has made virtual reality systems such as immersive simulation training systems possible. The immersive simulation training system is a "human-in-the-loop" virtual reality system. Utilizing the motion capture system, this type of system can create an avatar for the user in the virtual environment. The user can manipulate the avatar to seamlessly interact with the virtual environment, and complete a series of tasks under the guidance of the system, so as to obtain an immersive experience. Experience, so as to achieve the purpose of skills training and training. [0003] Building an immersive simulation training system requires real-time collection and reconstruction of human motion da...

AI Technical Summary

Problems solved by technology

This type of technology has the advantages of low cost and convenient application, but because only a small amount of control information comes from the performer, there may be a large difference between the reconstructed human body animation and the actual pose of the performer, so this type of technology can only be applied to Applications that do not require high precision in reconstructing motion

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