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Positioning coding mark point design method based on QR code

A design method, a technique for marking points, applied to record carriers used in machines, computing, inductive record carriers, etc.

Inactive Publication Date: 2019-07-19
TIANJIN POLYTECHNIC UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The disadvantage of point distributed coding markers is that they are sensitive to noise, speckles and a certain degree of deformation in the image

Method used

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  • Positioning coding mark point design method based on QR code
  • Positioning coding mark point design method based on QR code
  • Positioning coding mark point design method based on QR code

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Embodiment Construction

[0024] The present invention designs a method for designing a positioning coding mark point based on a QR code. The present invention provides a reliable, high stability, large amount of information, low-cost, practical, and easy-to-operate coding point design method. The present invention A method that can be applied to image matching involved in reverse engineering, object recognition and localization.

[0025] Described coding marking point design method comprises:

[0026] Marking pattern for marking point design (proposed by this invention);

[0027] Computers for precision control, image acquisition and data processing;

[0028] A high-precision color or black-and-white camera for capturing images;

[0029] A scanning platform for placing the light source and the camera;

[0030] The invention designs a coded marking point design method based on a QR code, and generates coded marking points used for key point positioning and data processing in image processing through...

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Abstract

The invention relates to a positioning coding mark point design method based on QR (Quick Response). The method can be applied to an image matching method involved in reverse engineering, object identification and positioning. The method comprises: generating a text content in the form of a QR code; generating three square positioning areas; adding a square special pattern to obtain the coding mark point information; and finally, checking the generated coding mark points. The coding mark point design method fundamentally solves the defects that a traditional coding mark point is small in information amount, small in size adjustable range and poor in readability. The coding mark point facilitates positioning and recognition, and the method is a coding mark point design method which is reliable, high in stability, large in information amount, low in cost, practical and convenient to operate.

Description

technical field [0001] The present invention relates to a method for designing positioning coding marking points based on QR (Quick Response) codes. More specifically, the present invention relates to a method that can be applied to image matching involved in reverse engineering, object recognition and positioning. Background technique [0002] In real life, the whole picture of most objects cannot obtain all the external structure information through one observation angle. Human vision can observe all the external structures of objects without any external assistance by moving or other means. information, but now in the field of computer vision, observing a complete external structure information of an object has many requirements for the object. When the object has a complex structure and the surface is not smooth, it can be matched and stitched by means of image stitching from multiple perspectives through the matching algorithm in computer vision. In this way, three-dime...

Claims

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Application Information

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IPC IPC(8): G06K19/06G06K7/14G06K9/62
CPCG06K19/06103G06K7/1417G06F18/22
Inventor 宋丽梅李健凯武志超
Owner TIANJIN POLYTECHNIC UNIV
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