Efficient realization method for normalized correlation image template matching

An implementation method and image template technology, applied in the field of image processing, can solve the problems of low template matching efficiency and large logical resource occupation area, etc.

Active Publication Date: 2016-03-23
NANJING UNIV OF AERONAUTICS & ASTRONAUTICS
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  • Abstract
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Problems solved by technology

[0011] The technical problem to be solved by the present invention is to aim at the deficiency of the above-mentioned background technology, and provide an efficient implementation method of normalized related image template matching, which further reduces the consumption of logic resources, and can further improve the operation speed, reduce power consumption and cost, and solve the existing problems There are technical problems such as low efficiency of template matching and large area occupied by logic resources

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  • Efficient realization method for normalized correlation image template matching
  • Efficient realization method for normalized correlation image template matching
  • Efficient realization method for normalized correlation image template matching

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Embodiment Construction

[0063] Embodiments of the present invention will be described in detail below, and the embodiments described below by referring to the accompanying drawings are exemplary and are only used to explain the present invention, rather than to limit the present invention.

[0064] Those skilled in the art can understand that, unless otherwise defined, all terms (including technical terms and scientific terms) used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this invention belongs. It should also be understood that terms such as those defined in commonly used dictionaries should be understood to have a meaning consistent with the meaning in the context of the prior art, and unless defined as herein, are not to be interpreted in an idealized or overly formal sense Explanation.

[0065] The normalized correlation coefficient formula used in the present invention is as follows:

[0066] C ...

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Abstract

The invention discloses an efficient realization method for normalized correlation image template matching, and belongs to the technical field of image processing. The matching method is realized by constructing an apparatus comprising a high-speed correlation operation module, a template drawing and real-time graph data external memory, a microprocessor and a result memory. Normalized correlation coefficients of template drawings and real-time graphs in all columns and a current row in a search position are concurrently computed in a concurrent processing mode at first, template drawing data are re-ordered according to a row sequence of real-time graph data during next-row search computing, and then normalized correlation coefficients of template drawings and real-time graphs in all columns and a next row in the search position are concurrently computed, so that normalized correlation coefficients of template drawings and real-time graphs in all the columns and all the rows in the search position can be computed on the premise that the real-time graph data correspond to the template drawing data.

Description

technical field [0001] The invention discloses an efficient implementation method of normalized correlation image template matching, in particular relates to a high-precision, high-real-time image template matching method and device capable of calculating normalized correlation coefficients efficiently and in parallel, belonging to the technical field of image processing . Background technique [0002] Template matching is mainly used to locate a target in an image. It has been widely used in image processing fields such as image registration and binocular stereo vision, and these image processing methods have been used in automatic target recognition, measurement based on binocular stereo vision, It has been widely used in military and civilian fields such as medical image fusion and satellite image monitoring. [0003] Template matching performs target localization by calculating the similarity measure between the template map known to characterize the target and all posi...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G06K9/62
CPCG06V10/751
Inventor 王小涛陈佳辉王邢波
Owner NANJING UNIV OF AERONAUTICS & ASTRONAUTICS
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