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Quick image retrieval method based on reference image indexes

A reference image and image indexing technology, applied in special data processing applications, instruments, electrical digital data processing, etc., can solve the problems of affecting image retrieval speed and time-consuming, so as to solve the problem of slow retrieval speed, reduce the number of images, and improve The effect of retrieval speed

Active Publication Date: 2013-01-30
THE THIRD RES INST OF MIN OF PUBLIC SECURITY
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Problems solved by technology

[0009] Aiming at the problem that the existing image retrieval method consumes more time and affects the image retrieval speed, the present invention provides a fast image retrieval method based on a reference image index

Method used

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  • Quick image retrieval method based on reference image indexes

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Embodiment Construction

[0033] In order to make the technical means, creative features, goals and effects achieved by the present invention easy to understand, the present invention will be further described below in conjunction with specific illustrations.

[0034] The purpose of the present invention is to provide a fast image retrieval method based on the benchmark image index, which forms a mapping from image features to real number axes through a similarity comparison method, establishes an index, and reduces the number of images that need to be accessed, thus solving the problem of the current image retrieval speed. Slow limitations.

[0035] Based on above-mentioned principle, concrete implementation of the present invention is as follows:

[0036] see figure 1 , it can be seen from the figure that the fast image retrieval method provided in this example includes two parts: generation of image index sequence and image retrieval;

[0037] Wherein, the image index sequence is specifically gene...

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Abstract

The invention discloses a quick image retrieval method based on reference image indexes, comprising two parts: index and retrieval, wherein the index part comprises the following steps of: extracting the characteristics of images in an image library, randomly selecting an image from the image library as a reference image, and calculating the similarity distance between each image and the reference image by a characteristic similarity comparison method, thereby calculating index numbers; and sorting the index numbers to form an index sequence; and the retrieval part comprises the following steps of: extracting the characteristic of an inquired image; calculating the similarity distance between the inquired image and the reference image to calculate the index number; and obtaining the neighbors of the inquired image in the index sequence by a binary search method, thereby obtaining a similar image set. The method forms mapping of the image characteristics to the one-dimensional real number axis by the characteristic similarity comparison method by introducing the reference image, establishes the indexes and effectively reduces the number of images needing to ba accessed, thereby accelerating the image retrieval speed.

Description

technical field [0001] The invention relates to an image retrieval technology, in particular to a fast image retrieval method based on a reference image index. Background technique [0002] With the rapid development of computer, multimedia, and Internet technologies and the establishment of a large number of video surveillance networks, images, as an important carrier of information transmission, have penetrated into all aspects of people's lives and work. Every day, gigabytes or even terabytes of image data are generated. How to effectively organize and manage these data and find the desired image quickly and accurately is a major problem that needs to be solved urgently. [0003] Currently the most commonly used image retrieval and query methods are text-based image retrieval technology and content-based image retrieval technology. Text-based image retrieval technology manually marks the image text in the video, and then uses keywords to search. This technology is not on...

Claims

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Application Information

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IPC IPC(8): G06F17/30G06K9/46G06K9/64
Inventor 朱丽英胡传平何宪英梅林齐力朱兴国贾凤娟
Owner THE THIRD RES INST OF MIN OF PUBLIC SECURITY
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