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Pixel array with super sampling function, image sensor and a plurality of pixel units

An image sensor and pixel unit technology, applied in the field of image sensors, can solve the problem of lack of sampling aliasing, etc., and achieve the effect of avoiding lack of sampling aliasing

Active Publication Date: 2014-04-30
SHANGHAI INTEGRATED CIRCUIT RES & DEV CENT
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0015] The technical problem to be solved by the present invention is to provide a super-sampled pixel array, an image sensor, and a pixel unit to solve the lack of sampling sawtooth caused by regular sampling in the prior art where the plane layout of the pixel array adopts a rectangular grid. technical issues

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  • Pixel array with super sampling function, image sensor and a plurality of pixel units
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Embodiment Construction

[0031] The following describes the implementation of the present invention in detail with the drawings and embodiments, so as to fully understand and implement the implementation process of how the present invention uses technical means to solve technical problems and achieve technical effects.

[0032] The pixel array in the following embodiments of the present invention includes several pixel units, each pixel unit includes several groups of pixels, each group of pixels includes several pixels, and the center points of the groups of pixels that make up the same pixel unit are displaced from each other to surround The central point of the same pixel unit is arranged in an irregular manner in which the center points of the pixel unit are rotated without regular sampling, thereby avoiding anti-aliasing.

[0033] In the following embodiments of the present invention, the description will be based on pixels based on the three primary colors of RGB, that is, each group of pixels include...

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Abstract

The invention discloses a pixel array with a super sampling function, an image sensor and a plurality of pixel units. The pixel array with the super sampling function comprises the pixel units. Each pixel unit comprises a plurality of pixel groups respectively including a plurality of pixels, center points of pixels in the same group are staggered mutually and the pixel groups of each pixel unit are distributed irregularly in a rotating mode around the center point of the corresponding pixel unit. Because the pixel groups of each pixel unit are distributed irregularly in the rotating mode around the center point of the corresponding pixel unit, distribution positions are scattered, irregular sampling can be achieved, and anti-aliasing is avoided.

Description

Technical field [0001] The invention belongs to the field of image sensors, and specifically relates to a super-sampling pixel array, image sensor, and pixel unit. Background technique [0002] Image sensors have been widely used in civil and commercial applications. At present, the image sensor consists of a CMOS image sensor (CMOS IMAGE SENSOR, hereinafter referred to as CIS) and a charge-coupled image sensor (Charge-coupled Device, hereinafter referred to as CCD). Compared with CCD image sensors, CMOS image sensors have the main advantages of low manufacturing cost, low power consumption and small image delay; at the same time, with the progress of the process, the inherent Rolling Shutter Effect and low signal-to-noise ratio of CMOS image sensors The disadvantages of CMOS image sensor products are slowly changing, and the image quality of many CMOS image sensor products is comparable to CCD image sensor products. [0003] CMOS image sensors are widely used in mobile phone cam...

Claims

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Application Information

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IPC IPC(8): H04N9/04
Inventor 陈嘉胤
Owner SHANGHAI INTEGRATED CIRCUIT RES & DEV CENT