Supercharge Your Innovation With Domain-Expert AI Agents!

Method for multi-camera automated high-precision calibration

A multi-camera and calibration method technology, applied in the calibration field, can solve the problems of slow calibration time, and achieve the effect of improving speed and ensuring robustness

Inactive Publication Date: 2011-05-04
ZHEJIANG UNIV
View PDF6 Cites 0 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Tomas' method is highly accurate and fully automatic, but the calibration time is very slow

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 multi-camera automated high-precision calibration
  • Method for multi-camera automated high-precision calibration
  • Method for multi-camera automated high-precision calibration

Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0054] A kind of multi-camera automatic high-precision calibration method of the present invention, such as figure 2 As shown, the following steps are included: 1. Setting the calibration object; 2. Taking the calibration picture; 3. Extracting the feature points on the taken calibration picture; 4. Matching the feature points; The point information is put into the W matrix, and the missing W matrix is ​​filled; 6. The filled W matrix is ​​decomposed by the algorithm of Tomas svoboda, and the internal and external parameters of the camera are calculated.

[0055] (1) Set the calibration object;

[0056] Such as image 3 As shown, the calibration object consists of four proportional LED light sources a, b, c, and d fixed on a wooden board, where the three LED light sources a, b, and c are collinear, and the three LED light sources a, b, and c The straight line where the light source is located is perpendicular to the straight line where the two LED light sources are located,...

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 multi-camera automated high-precision calibration, including following steps: 1, setting calibration object; 2, screening calibration pictures; 3, extracting feature pointf of the screened calibration pictures; 4, matching the feature points; 5, putting information of the matched feature points into W matrix to repair the missing W matrix; 6, using the Tomas svoboda algorithm to decompose the repaired W matrix for calculating internal and external parameter of the camers. The invention provides a method for multi-camera automated high-precision calibrationwith simple calibration object set, which can calibrating automatically with high-precision and high-speed.

Description

technical field [0001] The invention relates to calibration technology, in particular to a multi-camera automatic high-precision calibration method. Background technique [0002] Camera calibration is mainly to determine the internal and external parameters of the camera. Internal parameters mainly include image center (u0 and v0), focal length f (sometimes the result of combining it with the product of magnification and ay is called focal length), tilt coefficient s, distortion parameters, etc. External parameters refer to the position and orientation of the camera in the world coordinate system when shooting, which can be described by a rotation matrix R and a translation vector T. When the distortion parameter is not considered, it can be expressed by the following formula: [0003] Z c u v 1 ...

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 Patents(China)
IPC IPC(8): G06T7/00
Inventor 鲁东明刁常宇古鑫桐
Owner ZHEJIANG UNIV
Features
  • R&D
  • Intellectual Property
  • Life Sciences
  • Materials
  • Tech Scout
Why Patsnap Eureka
  • Unparalleled Data Quality
  • Higher Quality Content
  • 60% Fewer Hallucinations
Social media
Patsnap Eureka Blog
Learn More

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

© 2025 PatSnap. All rights reserved.Legal|Privacy policy|Modern Slavery Act Transparency Statement|Sitemap|About US| Contact US: help@patsnap.com