Decision-level fusion based bridge recognition method

A recognition method and decision-making technology, applied in the field of information processing, can solve problems such as low recognition rate, and achieve the effects of improving the accuracy rate, increasing the speed, and reducing the false alarm rate.

Active Publication Date: 2013-04-03
NORTH CHINA UNIVERSITY OF TECHNOLOGY
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Problems solved by technology

[0018] The present invention provides a bridge recognition method based on decision-making layer fusion, adopts multi-sensor fusion technology, comprehensively utilizes the complementary features of multis

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  • Decision-level fusion based bridge recognition method
  • Decision-level fusion based bridge recognition method
  • Decision-level fusion based bridge recognition method

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Embodiment Construction

[0083] Refer to the attached Figure 1~3 , the technical solution of the present invention is described in detail.

[0084] Step 1: Read in the multispectral image, panchromatic image and SAR image, convert the multispectral image from RGB space to HSV space, and obtain three components of H, S and V.

[0085] The space conversion formula from the RGB color model space to the HSV color model is:

[0086] S=(MAX-MIN) / MAX

[0087] H = 60 * ( G - B ) / ( MAX - MIN ) R = MAX ...

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Abstract

The invention discloses a decision-level fusion based bridge recognition method. The method includes following steps: reading in multispectral images, full-color images and SAR (synthetic aperture radar) images, and subjecting the multispectral images to HSV (hue, saturation and value) spatial conversion; respectively performing expansion and corrosion pretreatment to components H, S and V; respectively subjecting the H, S and V to threshold segmentation; using 8 neighborhood search to remove small-area interference area to obtain land-water segmentation result; using morphological dilation and morphological corrosion operator to put water body area in order to obtain a potential bridge area; extracting textural features of the potential bridge area from the full-color images, determining threshold, and recognizing bridge; and subjecting bridge recognition results in the full-color images and the SAR images to decision-level fusion. Bridge recognition is realized by comprehensively utilizing complementary features of the multispectral images, the full-color images and the SAR images, so that correct recognition rate of bridge targets is effectively improved.

Description

technical field [0001] The invention relates to an information processing technology, in particular to a bridge identification method based on decision-making layer fusion. Background technique [0002] In recent years, with the unprecedented development of remote sensing technology, there are more and more means of obtaining remote sensing data, and the remote sensing data is becoming more and more abundant. At the same time, the application field of remote sensing is constantly expanding and deepening. With the explosive growth of remote sensing images, the ability and efficiency of information extraction has become a bottleneck that limits the development of remote sensing applications. [0003] Target recognition technology is an important content in the field of information processing. How to accurately identify targets from images has great application value in various fields, such as the identification of sensitive targets in military, the identification of lesions i...

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Application Information

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IPC IPC(8): G06K9/00
CPCG06V20/176
Inventor 张永梅马健喆孙静臧淼胥玉龙
Owner NORTH CHINA UNIVERSITY OF TECHNOLOGY
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