Local line segment degree of deviation feature matching method based on printed matter

A feature matching and printing technology, applied in the field of image processing, can solve the problem of unsatisfactory matching effect, and achieve the effect of avoiding the problem of unmatched and distance error

Active Publication Date: 2016-10-12
宋育锋
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  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

It can handle translation, rotation and scale changes well, but for parts

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  • Local line segment degree of deviation feature matching method based on printed matter
  • Local line segment degree of deviation feature matching method based on printed matter
  • Local line segment degree of deviation feature matching method based on printed matter

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[0044] In order to make the objectives, technical solutions and advantages of the present invention clearer, the present invention will be further described in detail below with reference to the embodiments. It should be understood that the specific embodiments described herein are only used to explain the present invention, but not to limit the present invention.

[0045] In the embodiment, the reference print and the to-be-matched print 1 (actual match) and the reference print and the to-be-matched print 2 (actual mismatch) are respectively described for comparison. like figure 1 As shown, the present invention provides a method for matching local line segment deviation degree features based on printed matter, comprising the following steps:

[0046] Step 1: extracting the linear deviation degree feature of the image parts of the reference print, the print to be matched 1 and the print to be matched 2 respectively;

[0047] According to the feature extraction method of the...

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Abstract

The invention discloses a local line segment degree of deviation feature matching method based on a printed matter. The method comprises steps of extracting a line segment degree of deviation feature of the printed matter; performing matching method by using a minimum superposed length and a symbol difference; and determining the local matching relation of the printed matter according to a line segment matching result. The method solves a matching problem between different length features and prevents incapable matching and distance errors due to line segment position point inaccuracy.

Description

technical field [0001] The invention relates to image processing technology, in particular to a feature matching method based on printed matter of partial line segment deviation. Background technique [0002] Image feature extraction and feature matching has always been the focus and hotspot in the field of image processing, and is one of the key steps in image registration, image fusion and other related fields. Image features mainly include point features, line features and surface features. Image matching is mainly divided into two categories: feature-based and grayscale-based. [0003] At present, among feature-based matching schemes, SIFT-based feature extraction and matching algorithms are most widely used. It can handle translation, rotation and scale changes well, but for parts of prints with few point features, the matching effect is not satisfactory. Contents of the invention [0004] The technical problem to be solved by the present invention is to provide a ...

Claims

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Application Information

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IPC IPC(8): G06T7/00
CPCG06T2207/10004
Inventor 宋育锋
Owner 宋育锋
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