Method and system for establishing RGB spectral response curves and light sensing pixel set

Abstract

The invention provides a method and system for establishing RGB spectral response curves. The method includes the following steps that a light sensing pixel set is established, response values of light sensing pixels are obtained, the response value of the first light sensing pixel is the first response value R, the response value of the second light sensing pixel is the second response value G, the response value of the third light sensing pixel is the third response value B, the response value of the fourth light sensing pixel is the fourth response value GR, the response value of the fifth light sensing pixel is the fifth response value BG, and the response value of the sixth light sensing pixel is the sixth response value RB; RGB component values of the light sensing pixel set are calculated, and the RGB component values include the R component value R', the G component value G' and the B component value B', wherein R' is equal to R-RB-GR, G' is equal to G-GR-BG, and B' is equal to B-RB-BG. The RGB spectral response curves are established according to the RGB components of different spectrum sections. The invention further provides the light sensing pixel set. According to the scheme, the problem that the color rendition of an image obtained by an image sensor is low due to the fact that an aliasing area of the three kinds of spectrum response curves of the RGB is large can be solved.

Description

technical field [0001] The invention relates to the technical field of image processing, and more specifically, to a method and system for establishing an RGB spectral response curve, and a photosensitive pixel group. Background technique [0002] At present, the Bayer filter technology is a common technology for image sensors to obtain color information. The Bayer filtering technique is realized through a Bayer filter. The image sensor obtains color information through a Bayer filter. In the process of processing, the photosensitive pixel of the image sensor is provided with coatings, the coatings include red coating 01, green coating 02 and blue coating 03, such as figure 1 shown. Each photosensitive pixel on the above-mentioned image sensor responds to an object in a certain spectral band according to the coating, and finally obtains a response value relative to the spectral band. Finally, the image sensor passes through the Bayer filter. The response value of each pho...

AI Technical Summary

Problems solved by technology

[0005] The present invention provides a method and system for establishing an RGB spectral response curve, and a photosensitive pixel group, so as to solve the problem that the color restoration degree of the image acquired by the image sensor is low due to the relatively large mixing area of ​​the three RGB spectral response curves.

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