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Image positioning, recognizing and detecting method based on scaling and rotation matching

A detection method and image positioning technology, applied in character and pattern recognition, instruments, computer parts, etc., can solve problems such as template matching failure, and achieve the effect of rapid matching and positioning

Pending Publication Date: 2018-07-24
HRG INT INST FOR RES & INNOVATION
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  • Abstract
  • Description
  • Claims
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Problems solved by technology

In traditional template matching, if the item image in the picture has a large rotation angle relative to the template image on the plane, and the image size is greatly different, the traditional template matching is likely to fail

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  • Image positioning, recognizing and detecting method based on scaling and rotation matching
  • Image positioning, recognizing and detecting method based on scaling and rotation matching
  • Image positioning, recognizing and detecting method based on scaling and rotation matching

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Embodiment Construction

[0026] The present invention will be described in detail below in conjunction with the accompanying drawings and specific embodiments, wherein the schematic embodiments and descriptions are only used to explain the present invention, but are not intended to limit the present invention.

[0027] See attached figure 1 , which shows the first embodiment of the present invention through the rotation pyramid template matching, which is aimed at the situation that the item image has a certain rotation angle relative to the template image, and the attached figure 1 The middle image of is the image pyramid, and the right image is the corresponding template pyramid. There are four layers in the image pyramid. The first layer (that is, the bottom layer) is the original image, and the amount of calculation is reduced through the image pyramid. The specific steps are as follows:

[0028] (1) For the picture of the first layer, the pixels in the picture are scanned from left to right and...

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Abstract

The invention relates to an image positioning, recognizing and detecting method based on scaling and rotation matching. The method comprises the steps of reducing a target image and a template image to generate a multi-layer pyramid, then respectively performing rotation and scaling matching from the top layer of the pyramid, and transferring a matching result to the next layer until the first layer obtains an accurate matching result. The image positioning, recognizing and detecting method solves a problem that the traditional template matching cannot process wide-angle rotation existing between a template and a target image, solves a problem of size changes between the template and the image and realizes fast matching positioning, recognizing and detecting of the image.

Description

【Technical field】 [0001] The invention belongs to the field of image recognition and processing, in particular to an image positioning recognition detection method based on scaling and rotation matching. 【Background technique】 [0002] Image matching refers to the process of matching the template and the target image according to some features or combination features of the image. Image matching currently mainly includes template matching, contour matching, and feature point matching; template matching is to compare the grayscale of the template and the target image to find the position of the template in the target image, but template matching has its own limitations, mainly in It can only move in parallel, if the matching target in the original image is rotated or changed in size, the algorithm is invalid. Contour matching is difficult to extract contours when the target has a complex background and the contour of the object itself is difficult to extract; feature point m...

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Application Information

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IPC IPC(8): G06K9/62
CPCG06V10/7515
Inventor 蒋忠胜瞿顶军李文兴资鑫斌于振中
Owner HRG INT INST FOR RES & INNOVATION