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Large-format leather image splicing method

An image stitching, large-format technology, applied in image enhancement, image analysis, image data processing, etc., can solve the problem that large animal skins cannot obtain images through one-time shooting, and achieve short matching time, good algorithm stability, and avoidance of matching effect

Active Publication Date: 2017-08-18
ZHEJIANG UNIV OF TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] In order to overcome the problem that the large-scale animal skins of the existing leather stitching technology cannot obtain images through one-time shooting, the present invention provides a large-format leather image stitching algorithm that can effectively improve planning efficiency

Method used

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Experimental program
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Embodiment Construction

[0037] The present invention will be further described below in conjunction with the accompanying drawings.

[0038] refer to figure 1 , a large-format leather image stitching method, comprising the following steps:

[0039] 1) Paste checkerboards on the four corners and repeating areas of the two images. Paste 6 checkerboards on each image, three above and below. in the four corners of the image and in the repeating area of ​​the image.

[0040] 2) Carry out Harris corner detection in sequence;

[0041] 3) Fitting the corner points of the checkerboard in the repeated area. The process is as follows:

[0042] (3.1) Set the enclosing domain: set the enclosing domain according to the maximum and minimum values ​​of the x and y coordinates of the corner points of the checkerboard. The surrounding straight lines AB, BC, CD, DA are an enclosing domain. Set an empty stack for storing individual points. The number of fitted straight lines is 0;

[0043] (3.2) Calculate the s...

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Abstract

The invention discloses a large-format leather image splicing method, comprising the following steps: 1) setting checkerboards at the four corners and the repetitive areas of two images; 2) performing Harris corner point detection successively; 3) fitting the corner points of the checkerboards in the repetitive areas; 4) selecting and matching the corresponding corner points; 5) carrying out matrix transformation on the characteristic points of the images and calculating the corresponding relationship; and 6) performing coordinate projection transformation with the result of obtaining a spliced image. The method of the invention is advantageous in processing effect and time efficiency.

Description

technical field [0001] The invention relates to a large-scale leather image splicing method. Background technique [0002] Image stitching is the process of seamlessly stitching one or more adjacent images with overlapping parts into one image through a series of algorithms. Before image stitching, it is necessary to perform feature extraction, feature point detection, etc. on the image. In the leather image in the present invention, the checkerboard is used as a reference, and the features of the checkerboard are extracted for image splicing. [0003] The general process of making leather materials is nesting and cutting, so for the realization of leather automation, the first step is to obtain the outline of the leather. In actual operation, different animal leathers have different sizes, and it is also difficult to obtain leather images at one time. For large animals such as cow hides, images cannot be obtained through one-time shooting, and image stitching is required...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G06T3/40G06T7/33G06T7/13
CPCG06T3/4038G06T2207/10004G06T2207/30124
Inventor 秦绪佳王琪郑红波
Owner ZHEJIANG UNIV OF TECH
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