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Graph for three-dimensional reconstruction feature point matching

A feature point matching and 3D reconstruction technology, applied in 3D modeling, image data processing, biological neural network model, etc., can solve problems such as difficult 3D reconstruction, inability to completely remove mismatched points, mismatched feature points, etc.

Pending Publication Date: 2021-08-17
林项武
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Binocular or multi-eye stereo vision simulates the function of human eyes, completes 3D reconstruction through parallax, and can perform 3-D reconstruction of all objects in the image. The disadvantage that the matching points cannot be completely removed, so it is difficult to accurately complete the 3D reconstruction
The same problem exists in the 3D reconstruction of multi-view images

Method used

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  • Graph for three-dimensional reconstruction feature point matching
  • Graph for three-dimensional reconstruction feature point matching
  • Graph for three-dimensional reconstruction feature point matching

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0043] Such as figure 1 , a part of a graphic used for 3D reconstruction feature point matching. The scale of the matching graphic is determined according to the surface size of the object to be 3D reconstructed. The graphic is wrapped or projected onto the surface of the object to be 3D reconstructed. For example, a graphic can be set on a sock Put on this kind of socks to realize the three-dimensional reconstruction of human feet, and then, for example, use projection equipment to project graphics on the human body to realize the three-dimensional reconstruction of the human body. Code 2 is set in the area, and the code 2 is a barcode, and a feature point 3 corresponding to the closed area is selected from the detected feature points, and a corresponding geometric figure 4 is set for each feature point, and the geometric figure 4 is a circle shape, feature point 3 coincides with the center of the circle. Codes are set separately for each enclosed area. The feature points a...

Embodiment 2

[0045] Such as figure 2 , a part of a graphic used for matching three-dimensional reconstruction feature points, the scale of the matching graphic is determined according to the surface size of the object to be three-dimensionally reconstructed, and the graphic is wrapped or projected onto the surface of the object to be three-dimensionally reconstructed. The key points of its composition are: The graph is divided into several closed areas 1, and each area is provided with a code, the code is a two-dimensional code 21, and 4 feature points arranged in clockwise order corresponding to the closed area are selected from the detected feature points. 31. The feature point 31 is a corner point, and each feature point is provided with a corresponding geometric figure. The geometric figure is a square 41, and the feature point 31 coincides with the four vertices of the square 41. The position offset of the code is located at the upper left part of the figure, so as to facilitate dete...

Embodiment 3

[0047] Such as image 3 , a part of a graphic used for matching three-dimensional reconstruction feature points, the scale of the matching graphic is determined according to the surface size of the object to be three-dimensionally reconstructed, and the graphic is wrapped or projected onto the surface of the object to be three-dimensionally reconstructed. The key points of its composition are: The graph is divided into several closed areas 1, and each area is provided with a code, and the code is Arabic numerals 22. From the detected feature points, two feature points 32 arranged in left and right order corresponding to the closed area are selected, The feature points 32 are corner points, and each feature point is provided with a corresponding geometric figure. The geometric figure is a circle 42 , and the center of the feature point 32 coincides with the center of the square circle 42 . The position offset of the code is located at the upper left part of the figure, so as to...

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Abstract

In order to solve the problem of mismatching of feature points in the prior art, the invention provides a graph for three-dimensional reconstruction feature point matching, the graph coats or is projected to the surface of an object to be subjected to three-dimensional reconstruction, and the graph is characterized in that the graph is divided into a plurality of closed areas, each area is provided with a code, one feature point corresponding to the closed area or a plurality of feature points arranged according to a certain sequence are selected from the detected feature points, a geometric figure is set to correspond to each feature point, and the feature points coincide with the geometric feature points of the figure. The technical effect of the invention is to provide a graph which presets geometric figures and codes for the feature points, so that each feature point can exclude other adjacent feature points through a method of coinciding with the geometric feature points of the geometric figures, and a corresponding relation between the feature points and the codes is established. Accurate matching of feature points of different photos can be achieved by contrasting codes.

Description

technical field [0001] The invention relates to a graph used for three-dimensional reconstruction feature point matching. Background technique [0002] Image 3D reconstruction is used in various fields. Binocular or multi-eye stereo vision simulates the function of human eyes, completes 3D reconstruction through parallax, and can perform 3-D reconstruction of all objects in the image. The shortcomings of matching points cannot be completely removed, so it is difficult to accurately complete 3D reconstruction. The same problem exists in 3D reconstruction of multi-view images. Contents of the invention [0003] The purpose of the present invention is to solve the problem of feature point mismatch in the prior art and provide a graphic for feature point matching in 3D reconstruction. The graphic is wrapped or projected onto the surface of the object to be 3D reconstructed. By processing the image, The technical problem of feature point mismatch in 3D reconstruction in the ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G06K9/62G06K9/46G06T17/00G06K7/14G06N3/02
CPCG06T17/00G06K7/1491G06N3/02G06V10/44G06V10/464G06V10/757
Inventor 林项武
Owner 林项武
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