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

A technology of image signal processing and infrared image, applied in color signal processing circuit, luminance and chrominance signal processing circuit, image communication, etc., can solve problems such as not given

Active Publication Date: 2014-10-01
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 thereof
  • Infrared and visible light image signal processing method and implementation device thereof
  • Infrared and visible light image signal processing method and implementation device thereof

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Embodiment Construction

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

[0049] see first 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 Composition, wherein 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, the distribution and proportion of each component in the specific RAW image in the image space and the image sensor format related. The interpolation unit 12 is connected to the image input unit 11, and is used for interpolating the down-sampled images of each component of the visible light image to the full-f...

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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 an implementation device. Background technique [0002] At present, common image sensors can sense near-infrared light as well as visible light. Such as figure 1 Shown is a quantified response curve of a typical image sensor. Among them, the curve B is the corresponding curve of the B channel, the curve G is the corresponding curve of the G channel, and the 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 part, when there is near-infrared light in the light sensed by the image sensor, it will cause color cast of the object. For the convenience of writing, unless otherwise specified, infrared light refers to near-infrared light. [0003] At present, there are two common methods in the industry that can better solve the infrared color cast: one is to e...

Claims

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Application Information

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Patent Type & Authority Applications(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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