Method for conversion between coordinate systems of two independent systems based on quaternion

A technology of an independent system and conversion method, which is applied in graphics and image conversion, image data processing, instruments, etc., can solve the problem of not mentioning the system information conversion method, etc., and achieve the effect of convenient data fusion and simple and fast calculation.

Active Publication Date: 2017-11-07
GUANGZHOU HUANTEK CO LTD +2
View PDF6 Cites 1 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

In the process of mixed use of multiple systems, the position information and spatial attitude information of the system need to be transformed in order to perform data fusion processing. The applied for patent CN 104834917A mentions a system and method for hybrid motion capture, but does not mention the system Information transfer method between

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 conversion between coordinate systems of two independent systems based on quaternion
  • Method for conversion between coordinate systems of two independent systems based on quaternion
  • Method for conversion between coordinate systems of two independent systems based on quaternion

Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0038] Below in conjunction with accompanying drawing, the present invention is further described:

[0039] like Figure 1-Figure 4 As shown, the transformation method between two independent system coordinate systems based on quaternion, including the calibration process of transformation parameters and the information transformation process,

[0040] The specific steps of the calibration process of the conversion parameters are as follows:

[0041] S11: The marker of system A is a, and system A measures the position information and spatial attitude information of marker a; the marker of system B is b, and system B measures the position information and spatial attitude information of marker b. Marker a and marker b are fixed on a fixed seat;

[0042] S12: Keep the marker relatively stationary, and rotate the fixed seat to rotate the marker a and the marker b at the same time, and obtain the position information and spatial attitude information of the two markers in the n gr...

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 conversion between coordinate systems of two independent systems based on quaternion. The method includes a conversion parameter calibrating process and an information conversion process, wherein the conversion parameter calibrating process includes the steps of fixing markers of the two independent systems, retaining the markers to be relatively still, rotating the markers, obtaining the positional information and space attitude information of the two markers during the motion process, converting the obtained positional information and space attitude information into quaternion, and estimating the conversion parameter with least squares. The information conversion process includes the steps of obtaining the positional information and space attitude information of the marker of one system, converting the obtained positional information and space attitude information into quaternion, and calculating the positional information and space attitude information of the marker in the other system according to the estimated conversion parameters. The conversion of positional information and space attitude information of two systems is possible, which facilitates subsequent data fusion. Calculation is simple and fast, and no extra measuring instrument is needed.

Description

technical field [0001] The invention specifically relates to a conversion method between two independent system coordinate systems based on quaternions. Background technique [0002] There are many existing virtual reality systems and motion capture systems. Virtual reality systems, such as HTC Vive, Oculus Rift, PSVR; motion capture systems, such as Perception Neuron, OptiTrack, can independently measure the position information and spatial attitude information of the target in the 3D scene, but its coordinate system, origin, measurement accuracy, etc. Not necessarily consistent. In the process of mixed use of multiple systems, the position information and spatial attitude information of the system need to be transformed before data fusion processing can be performed. The applied patent CN 104834917A mentions a hybrid motion capture system and method, but does not mention the system information conversion method. SUMMARY OF THE INVENTION [0003] The purpose of the pre...

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
Patent Type & Authority Applications(China)
IPC IPC(8): G06T3/60G06T7/70
CPCG06T3/60G06T7/70
Inventor 李元龙周言明黄昌正李观喜杨溢商燕玲
Owner GUANGZHOU HUANTEK CO LTD
Who we serve
  • R&D Engineer
  • R&D Manager
  • IP Professional
Why Eureka
  • Industry Leading Data Capabilities
  • Powerful AI technology
  • Patent DNA Extraction
Social media
Try Eureka
PatSnap group products

Browse by: Latest US Patents, China's latest patents, Technical Efficacy Thesaurus, Application Domain, Technology Topic.

© 2024 PatSnap. All rights reserved.Legal|Privacy policy|Modern Slavery Act Transparency Statement|Sitemap