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Classified identification algorithm of ship targets based on manifold distance characteristic

A target classification and recognition algorithm technology, applied in the field of ship target classification and recognition algorithm based on manifold distance representation, to achieve the effect of improving efficiency, expanding distance and reducing distance

Inactive Publication Date: 2016-04-27
NO 709 RES INST OF CHINA SHIPBUILDING IND CORP
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  • Abstract
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  • Claims
  • Application Information

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Problems solved by technology

However, in actual application, these existing algorithms lack a comprehensive investigation of the sample size and the measurement of sample similarity.

Method used

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  • Classified identification algorithm of ship targets based on manifold distance characteristic
  • Classified identification algorithm of ship targets based on manifold distance characteristic
  • Classified identification algorithm of ship targets based on manifold distance characteristic

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Embodiment Construction

[0030] The present invention will be further described below in conjunction with the accompanying drawings and embodiments.

[0031] Traditional distances such as Euclidean distance cannot accurately express the real differences between samples, such as figure 1 As shown, the distance between samples A and C is much larger than the distance between samples A and B. If it is divided according to the size of the distance on the Euclidean space, then A and B will be classified into the same space, and C will be divided into another space. Obviously, the classification results obtained by this classification method are different from those of the three samples. The actual distribution is the opposite. For this reason, the concept of manifold space is introduced in this study, which aims to reduce the distance between samples in high-density areas and expand the distance between samples in low-density areas, so that the spatial distribution of samples tends to its true distributio...

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Abstract

The invention discloses a classified identification algorithm of ship targets based on the manifold distance characteristic. According to the algorithm, the similarity measuring standard among target objects is provided on the basis of the distance weight among samples represented by weighted corrected local anti-entropy operators. Compared a traditional distance measuring standard, the similarity measuring standard can reflect the practical space distribution of the objects more effectively; and neighbor samples are preprocessed and screened based on the standard, the classification efficiency of a probability generation model is improved, and the real-time processing requirement for ship target classified identification is met.

Description

technical field [0001] The invention relates to the field of computer application technology, in particular to a ship target classification and recognition algorithm based on manifold distance representation. Background technique [0002] As an important carrier at sea, the efficiency of automatic detection and identification of ships is related to the success or failure of our army's war to seize the sea to a certain extent. Especially in recent years, with the development of satellite remote sensing technology, the recognition algorithm based on optical remote sensing images has shown its own advantages, which has attracted great attention from scholars at home and abroad, and a series of theoretical reference and application value have emerged. Research results. [0003] Generally speaking, the key problem in solving target classification is how to cluster, and the most important factor in clustering is the measurement of similarity between target objects. Traditional si...

Claims

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Application Information

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IPC IPC(8): G06K9/62
CPCG06F18/24143
Inventor 郭伟娅夏学知
Owner NO 709 RES INST OF CHINA SHIPBUILDING IND CORP
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