Unlock instant, AI-driven research and patent intelligence for your innovation.

Calibration Method of Turntable Rotation Shaft Based on Calibration Template of Direction Indicating Mark Points

A calibration template and direction indication technology, applied in character and pattern recognition, image analysis, image enhancement, etc., can solve the problems of complex operation, large amount of calculation, recognition error, etc., and achieve the effect of high calculation accuracy and high recognition stability

Active Publication Date: 2022-08-09
SHANGHAI HUI X IMAGING INFORMATION TECH
View PDF10 Cites 0 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

This kind of standard three-dimensional object needs to measure the error regularly, and the operation is complicated, the calculation amount is large, and the error is prone to occur, which leads to the recognition error

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
  • Calibration Method of Turntable Rotation Shaft Based on Calibration Template of Direction Indicating Mark Points
  • Calibration Method of Turntable Rotation Shaft Based on Calibration Template of Direction Indicating Mark Points
  • Calibration Method of Turntable Rotation Shaft Based on Calibration Template of Direction Indicating Mark Points

Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0033] The specific implementation of the method for calibrating the rotary axis of the turntable based on the direction indicating mark point calibration template of the present invention will be described in detail below with reference to the accompanying drawings.

[0034] see attached figure 1 , the calibration template includes a marker point matrix and a direction indicating marker point outside the marker point matrix, and the direction indicating marker point is located on the vertical line of a rectangular side of the marker point matrix.

[0035] see attached figure 2 , The calibration template is placed on the turntable 1, and when the turntable 1 rotates, the camera system 2 takes pictures of the calibration templates at different rotational positions on the turntable 1.

[0036] see attached image 3 , The steps of the rotary axis calibration method of the turntable are as follows:

[0037] 1. Place the calibration template in the middle area of ​​the turntabl...

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 relates to the technical field of image processing and pattern recognition, and discloses a turntable rotation axis calibration method based on a direction indicator point calibration template, comprising the following steps: photographing multi-angle images; extracting a matrix; constructing a calibration template coordinate system; system; fitting the center of the turntable; fitting the turntable plane; constructing the turntable coordinate system; calculating the transformation matrix. The invention can complete the calibration of the rotary shaft of the turntable by using a simple calibration template.

Description

technical field [0001] The invention relates to the technical field of image processing and pattern recognition, in particular to a turntable rotation axis calibration method based on a direction indicating mark point calibration template. Background technique [0002] Shooting and modeling of objects through cameras, whether it is a line laser camera or an area laser camera, is achieved through [0003] The data from all angles of the scanned object is combined to complete the 3D modeling. By rotating the object on the turntable, the data of various angles are combined into three-dimensional data. The calibration of the rotation axis of the turntable is still very important in the process of image recognition modeling. [0004] The existing turntable rotation axis calibration process is realized by standard three-dimensional objects, such as cubes, spheres and cylinders. The standard three-dimensional objects are rotated on the turntable and scanned by the camera, and the...

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): G06T7/80G06T7/62G06V10/75
CPCG06T7/80G06T7/62G06T2207/10012
Inventor 刘家昕刘家朋
Owner SHANGHAI HUI X IMAGING INFORMATION TECH
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