Looking for breakthrough ideas for innovation challenges? Try Patsnap Eureka!

Method for reconstructing whole body posture in real time on basis of positions and postures of head and double hands

A head and posture technology, applied in the field of virtual reality, can solve the problem of unable to synthesize non-existent postures and other problems

Inactive Publication Date: 2018-06-29
SHANGHAI JIAO TONG UNIV
View PDF4 Cites 12 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] In view of the defects in the prior art that the reconstruction results largely depend on the amount of motion data in the database, which cannot be synthesized or poses that do not exist in the motion database, the present invention proposes a real-time whole-body pose based on the position and pose of the head and hands The reconstruction method only needs to provide the position and posture of the hands and the position and posture of the head in real time, and the upper and lower body are reconstructed in real time by means of inverse dynamics and animation mixing

Method used

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
View more

Image

Smart Image Click on the blue labels to locate them in the text.
Viewing Examples
Smart Image
  • Method for reconstructing whole body posture in real time on basis of positions and postures of head and double hands
  • Method for reconstructing whole body posture in real time on basis of positions and postures of head and double hands
  • Method for reconstructing whole body posture in real time on basis of positions and postures of head and double hands

Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0049] In this embodiment, a robot model is used to demonstrate the reconstruction algorithm proposed in the present invention. In this scenario, the user's actions within the specified range will be reconstructed in the virtual reality system in real time. In a multiplayer application, the reconstructed result will give other users a stronger immersive experience.

[0050] The following steps in this embodiment are all based on the HTC Vive virtual reality device during the experiment, which includes a head-mounted display and two hand controllers as standard, which can capture the position and posture of the user's head and hands, and send sensor signals Through the underlying interface OpenVR, it is transformed into the position and posture of the head and hand in the space coordinate system. The sensor configuration of the present invention is currently the standard configuration of high-end head displays in the virtual reality field, and the solution is also compatible with ...

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More

PUM

No PUM Login to View More

Abstract

The invention discloses a method for reconstructing a whole body posture in real time on basis of positions and postures of the head and double hands. The method comprises the following steps of: carrying out upper body reconstruction by adoption of an inverse kinematics scheme, namely, firstly estimating a waist position and shoulder positions according to a head position, and calculating elbow positions according to input hand positions by adoption of the inverse kinematics scheme; and carrying out lower body reconstruction through a preset animation mixing manner, and finally mapping positions of all the joints on to the reconstructed upper body and lower body in sequence to complete the reconstruction of the whole body posture.

Description

Technical field [0001] The present invention relates to a technology in the field of virtual reality, specifically a method that uses reverse dynamics and animation blending only according to the position and posture of the user's hands and head, and separately performs virtual reality on the user's upper body and lower body. A technique for real-time body posture reconstruction. Background technique [0002] With the continuous improvement of hardware specifications, virtual reality technology has become hot again and is gradually favored by industry insiders. Although the current popularity of equipment cannot make users feel the charm of virtual reality, it is believed that when there are enough users and the content is rich enough, virtual reality will glow with its due magic. [0003] In various virtual reality applications, the need to reconstruct the human body into the virtual world is often used. For example, in multiplayer virtual reality, each user wants to see his tea...

Claims

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More

Application Information

Patent Timeline
no application Login to View More
IPC IPC(8): G06T13/40G06F3/01
CPCG06F3/011G06T13/40G06T2200/08
Inventor 姜帆杨旭波
Owner SHANGHAI JIAO TONG UNIV
Who we serve
  • R&D Engineer
  • R&D Manager
  • IP Professional
Why Patsnap Eureka
  • Industry Leading Data Capabilities
  • Powerful AI technology
  • Patent DNA Extraction
Social media
Patsnap Eureka Blog
Learn More
PatSnap group products