Noise model calibration method, image denoising method, device, equipment and medium

By performing nonlinear noise denoising and model calibration on multiple frames of RAW domain images, a target RAW domain noise model is generated, which solves the problem of low denoising accuracy in RAW domain images and improves image quality.

CN114092562BActive Publication Date: 2026-06-02SHANGHAI WINGTECH INFORMATION TECH CO LTD
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Patents(China)
Current Assignee / Owner
SHANGHAI WINGTECH INFORMATION TECH CO LTD
Filing Date
2021-10-19
Publication Date
2026-06-02

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Abstract

The application relates to the technical field of image processing, and discloses a noise model calibration method, an image denoising method, a device, equipment and a medium. The method comprises the following steps: acquiring multiple RAW domain images; performing nonlinear noise denoising processing based on the multiple RAW domain images to generate a target image; and calibrating a preset RAW domain noise model based on the target image to generate a target RAW domain noise model. Through the technical scheme, the denoising precision of the target RAW domain noise model is improved, and thus the image definition and the image quality of the RAW domain image are improved.
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