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Image search method based on target area matching

A target area and image retrieval technology, which is applied in the field of image processing, can solve the problems of inflexible target selection and low retrieval efficiency, and achieve the effect of improving precision and recall and retrieval efficiency

Inactive Publication Date: 2010-02-03
SHENZHEN SKYWORTH DIGITAL TECH CO LTD
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Problems solved by technology

At the same time, the existing image retrieval methods based on local information are not only inflexible in the way of target selection, but also have the problem of low retrieval efficiency caused by too many feature indexes.

Method used

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  • Image search method based on target area matching
  • Image search method based on target area matching
  • Image search method based on target area matching

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Embodiment Construction

[0020] The image retrieval method based on target area matching proposed by the present invention performs automatic segmentation or artificial segmentation on the image to be retrieved, determines the retrieval target area, then extracts the color, texture and shape feature values ​​of the image target area, and performs these feature value indicators Optimize the selection, and finally use the region matching technology for image retrieval.

[0021] The method of the present invention is mainly divided into three processes: the selection of the target area, the extraction of the comprehensive features of the target area, and the image retrieval based on the matching of the target area. The specific implementations of these processes are described below.

[0022] The specific realization of the image automatic region segmentation and the selection of the region of interest: using the characteristic that there is always an edge between two adjacent regions with different gray v...

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Abstract

The invention discloses an image search method based on target area matching, which comprises the following steps: a, selecting an image to be searched, and utilizing an edge detection algorithm to automatically partition the image to be searched; b, judging the partitioning effect, confirming a searched target area if a user satisfies the target area which is automatically partitioned, and selecting a target area that the user is interested in as a searched target from images that are not partitioned by self if the user does not satisfy the target area which is automatically partitioned; c, extracting characteristic values of the target area; d, taking the target area confirmed by the user as a template, using a template matching mode to carrying out template matching and similarity calculation in an image library, taking the searched image as a target when the similarity reaches a preset threshold value, or carrying out the template matching and the similarity calculation continuously until the image is covered completely; and e, sequentially displaying the searched result according to the similarity after the images in a database are searched according to requirements.

Description

technical field [0001] The present invention relates to image processing technology, more specifically, relates to an image retrieval method based on target area matching. Background technique [0002] With the rapid development of network technology and the popularization and application of multimedia technology, thousands of pictures are produced every day. How to quickly and accurately find images that meet user needs from such a massive image library has become an important issue in the field of image retrieval. key issues that urgently need to be addressed. [0003] The traditional image retrieval method adopts text-based image retrieval technology. Before retrieval, this technology manually annotates the text of each image, describes the content of the image within a certain limited number of words, forms an annotation database describing the image, and uses the annotation as a keyword to associate with the image database. . When searching, in fact, only the image a...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G06F17/30G06T7/00
Inventor 刘斌兰奎千
Owner SHENZHEN SKYWORTH DIGITAL TECH CO LTD
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