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Simple lens image restoration method combined with RAW image denoising

A simple lens, RGB image technology, applied in the field of image restoration, can solve the problems of blurred images, no sensor noise pollution, inappropriate RAW images, etc., to achieve the effect of filtering noise and improving image restoration quality

Inactive Publication Date: 2018-03-23
CHANGSHA PANODUX TECH CO LTD
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Problems solved by technology

The RGB image processed by the existing simple lens computing imaging method is converted from the RAW image, only considering the image blur caused by the lens aberration and dispersion, and does not involve the noise pollution when the sensor acquires image data, and the common RGB image denoising methods are not suitable for RAW images

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  • Simple lens image restoration method combined with RAW image denoising
  • Simple lens image restoration method combined with RAW image denoising
  • Simple lens image restoration method combined with RAW image denoising

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Embodiment Construction

[0022] The following will clearly and completely describe the technical solutions in the embodiments of the present invention with reference to the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only some of the embodiments of the present invention, not all of them. Based on the embodiments of the present invention, all other embodiments obtained by persons of ordinary skill in the art without making creative efforts belong to the protection scope of the present invention.

[0023] Such as figure 1 As shown, a simple lens image restoration method combined with RAW image denoising provided in this embodiment includes the following steps:

[0024] Step 1: Obtain a RAW image directly captured by a simple lens, and denoise the RAW image.

[0025] The RAW image is the original data that the CMOS or CCD image sensor converts the captured light source signal into a digital signal. It is lossless and contains the original c...

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Abstract

The invention discloses a simple lens image restoration method combined with RAW image denoising, which firstly denoises a RAW image directly captured by a simple lens, then converts the RAW image into an RGB image, and then performs blind convolution image restoration on the RGB image to get a final clear restoration image. The method of the invention can effectively filter the noise of the sensor when acquiring the image data when correcting the image blur caused by lens aberration and dispersion, and can further improve the image restoration quality of the simple lens computational imaging.

Description

technical field [0001] The invention relates to the field of image restoration, in particular to a simple lens image restoration method combined with RAW image denoising. Background technique [0002] In recent years, computational imaging with simple lenses has gradually become a new research direction in the field of image restoration. Simple lens calculation imaging aims to use the optical lens structure as simple as possible at the front end combined with the post-image calculation method to obtain imaging quality similar to that of high-end cameras such as SLR cameras. Simple lens computational imaging can greatly reduce the cost of optical design of the lens, and has important research value in the fields of image restoration and optical design. [0003] The existing simple lens image calculation methods are all directly processing the RGB image obtained by the simple lens. The blurring of the default image is mainly caused by the aberration and dispersion of the lens...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G06T5/00
CPCG06T2207/10004G06T2207/10024G06T5/73G06T5/70
Inventor 张智福余思洋陈捷刘稹
Owner CHANGSHA PANODUX TECH CO LTD
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