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Image sensor, image processing method and device, and storage medium

An image processing device and image sensor technology, applied in the field of image processing, can solve the problems of reducing the signal-to-noise ratio, low utilization rate of optical signals, impact on image quality, etc.

Active Publication Date: 2022-05-06
GUANGDONG OPPO MOBILE TELECOMM CORP LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

It is precisely because each pixel unit in traditional CIS can only absorb one light signal in RGB, and the light signal utilization rate is relatively low, which greatly reduces the signal-to-noise ratio, which in turn affects the image quality.

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  • Image sensor, image processing method and device, and storage medium
  • Image sensor, image processing method and device, and storage medium
  • Image sensor, image processing method and device, and storage medium

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Embodiment Construction

[0028] The technical solutions in the embodiments of the present application will be clearly and completely described below in conjunction with the drawings in the embodiments of the present application. It should be understood that the specific embodiments described here are only used to explain the related application, not to limit the application. It should also be noted that, for the convenience of description, only the parts related to the relevant application are shown in the drawings.

[0029] For traditional CIS, whether it is FSI or BSI, the photodiode (photodiode, PD) in it all absorbs the light of 400nm-1100nm. Therefore, it is necessary to add filters of different colors to make it a single Pixels only absorb one color in RGB. At the same time, deep trench isolation (Deep Trench Isolation, DTI) is required for isolation between each pixel, so as to prevent incident light of different colors from entering adjacent pixels, thereby avoiding crosstalk between adjacent...

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Abstract

The embodiment of the present application discloses an image sensor, an image processing method and device, and a storage medium. The CIS includes: a first pixel unit, a second pixel unit, a first filter unit, a second filter unit, and a readout circuit; Wherein, the first sub-wavelength PD column is set in the first pixel unit, the second sub-wavelength PD column and the third sub-wavelength PD column are set in the second pixel unit; the first filter unit covers the first pixel unit; the second filter unit The light unit covers the second pixel unit; the readout circuit is connected with the first pixel unit and the second pixel unit.

Description

technical field [0001] The embodiments of the present application relate to the field of image processing, and in particular, to an image sensor, an image processing method and device, and a storage medium. Background technique [0002] An image sensor is a device capable of converting optical signals into electrical signals, and can be divided into two types: Charge Coupled Device (CCD) and Complementary Metal-Oxide Semiconductor (CMOS). Among them, the complementary metal oxide image sensor (CMOS Image Sensor, CIS) is easy to integrate the system on chip because its manufacturing process is compatible with the signal processing chip and other manufacturing processes. The image processing noise reduction algorithm can improve the signal-to-noise ratio, so it has occupied a dominant position in the field of image sensor applications. [0003] Traditional CIS can include two different structures, Front Side Illumination (FSI) and Back Side Illumination (BSI), and whether it ...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H04N5/374H04N5/378H04N5/357
CPCH04N25/60H04N25/76H04N25/75
Inventor 杨鑫
Owner GUANGDONG OPPO MOBILE TELECOMM CORP LTD