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Two-waveband video fast naturalness color integration method based on color look-up table

A color lookup table and color fusion technology, applied in image communication, electrical components, etc., can solve the problems of unstable color and low speed of dual-band video, and achieve the effect of improving stability and running speed.

Inactive Publication Date: 2012-03-14
BEIJING INSTITUTE OF TECHNOLOGYGY
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Problems solved by technology

[0005] The purpose of the present invention is to solve the problem of the low speed of natural color fusion of dual-band video in the prior art and the unstable color of the same scene in different frames in the fusion video. Fast Natural Color Fusion Method for Band Video

Method used

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  • Two-waveband video fast naturalness color integration method based on color look-up table
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  • Two-waveband video fast naturalness color integration method based on color look-up table

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Embodiment Construction

[0031] Compared with the prior art, the fast natural sense color fusion method of dual-band video based on the color lookup table provided by the present invention mainly improves in that

[0032] ①A set of reference images is used for color transfer processing, and a set of result images obtained has several color effects, which can be selected by users based on subjective judgment, which is conducive to scene perception and conforms to the operation mode for further practical applications.

[0033] ② When the color lookup table is initially established, the color transfer result image selected by the observer is used to provide the color value, instead of the grayscale image collected under daylight conditions registered with the dual-band grayscale image, which reduces the difficulty of obtaining the input video , which is consistent with the actual application situation.

[0034] ③In order to solve the problem of incomplete color information in the lookup table, according ...

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Abstract

The invention relates to a two-waveband video fast naturalness color integration method based on a color look-up table, belonging to the field of color night vision imaging. The method comprises the following steps: building a two-dimensional color look-up table according to correspondence of pixel gray value and color value of a two-waveband gray level image and a naturalness color image obtained by a color delivery method; obtaining the complete color look-up table according to the principle that the closer the Euclidean distance among the pixels is, the more similar the color is; and building operation modes which are beneficial to perception scenes of different observers in practical application by carrying out two-waveband video fast naturalness color integration by the complete color look-up table. In the invention, color assignment is directly carried out to all frame images of input video by the two-dimensional color look-up table, so as to greatly promote the operation speed of the algorithm; the stability of scenery colors in the integration video is obviously improved. As the color effect of the integration video is chose by the observers, so as to be beneficial to scene perception of the observers and be accordance to the operation modes in practical application.

Description

technical field [0001] The invention relates to a fast natural color fusion method for dual-band video based on a color lookup table, belonging to the field of color night vision imaging. Background technique [0002] Modern battlefield reconnaissance has higher and higher requirements for target detection and identification, and battlefield camouflage makes target detection more difficult. Single-band imaging instruments can no longer meet the needs of the battlefield. In order to find targets more effectively, long-wave and mid-wave infrared thermal imaging cameras, visible light sensors, and low-light night vision devices are widely used in the military field. The multi-band image fusion technology can make full use of the respective advantages of different sensors and make up for the shortcomings of a single sensor. Since the color level that the human eye can distinguish is hundreds of times the gray level, in tasks that are mainly observed by the human eye, such as h...

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H04N1/56H04N1/60
Inventor 王岭雪金伟其赵源萌骆媛史世明王霞
Owner BEIJING INSTITUTE OF TECHNOLOGYGY
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