Infrared and visible light image signal processing method and implementation device

An image signal processing, infrared image technology, applied in the direction of color signal processing circuit, luminance and chrominance signal processing circuit, image communication, etc., can solve the problem of not giving and so on

Active Publication Date: 2015-12-02
SHANGHAI FULLHAN MICROELECTRONICS
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Problems solved by technology

[0008] The currently published patents on image signal processing of infrared light and visible light do not provide a solution that can better solve the above two problems at the same time at a lower cost

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  • Infrared and visible light image signal processing method and implementation device
  • Infrared and visible light image signal processing method and implementation device
  • Infrared and visible light image signal processing method and implementation device

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Embodiment Construction

[0048] The present invention will be further described in detail below with reference to the drawings and specific embodiments.

[0049] First see figure 2 As shown, the infrared and visible light image signal processing device of the present invention mainly consists of five parts: an image input unit 11, an interpolation unit 12, an infrared correction unit 13, a brightness and sharpness compensation unit 14, and a corrected image output unit. The image input unit 11 is used to obtain the down-sampled visible light image containing infrared information before correction, that is, the original RAW image collected by the image sensor, and the specific distribution and proportion of each component in the RAW image in the image space and the image sensor The format is related. The interpolation unit 12 is connected to the image input unit 11 for interpolating the down-sampled image of each component of the visible light image to the full-frame image. The infrared correction unit ...

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Abstract

The invention discloses an infrared and visible light image signal processing method and an implementation device thereof. The method comprises the following steps that an infrared image and a visible light image corrected in an infrared mode are provided; a color feature value corresponding to each pixel in the visible light image is calculated; acutance information corresponding to each pixel in the visible light image is calculated by means of the corresponding color feature value; acutance information corresponding to each pixel in the infrared image is calculated; acutance correction parameters and brightness correction parameters of the visible light image and the infrared image are calculated; according to the acutance correction parameters and the brightness correction parameters which are obtained through calculation, one-by-one pixel weighted combination is conducted on a certain color space. Due to the fact that acutance analysis, color analysis and brightness analysis are conducted on the infrared image and the visible light image corrected in the infrared mode, the infrared image and the visible light image are dynamically fused into one image, and the brightness, colors and acutance of the output image have no loss.

Description

Technical field [0001] The invention relates to a near-infrared light image and visible light image signal processing method and implementation device. Background technique [0002] At present, common image sensors can sense near-infrared light while sensing visible light. Such as figure 1 Shown is the quantitative response curve of a typical image sensor. Among them, curve B is the corresponding curve of the B channel, curve G is the corresponding curve of the G channel, and curve R is the corresponding curve of the R channel. Since each color channel of the image sensor has a high response in the near-infrared light, when the light sensed by the image sensor contains near-infrared light, it will cause the object to cast color. The following is for the convenience of writing. Unless otherwise specified, infrared light refers to near-infrared light. [0003] At present, there are two common methods that can better solve the infrared color cast in the industry: one is to configur...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H04N9/64H04N9/68H04N9/77H04N5/33
Inventor 董鹏宇陈芳芳潘泽民王秀锋刘行
Owner SHANGHAI FULLHAN MICROELECTRONICS
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