PD pixel reading method and device in pixel synthesis mode, storage medium and image acquisition equipment

A pixel and mode technology, applied in the field of image sensors, can solve the problems of low reading accuracy and focusing effect, and achieve the effect of improving accuracy and focusing effect, maintaining characteristics, and realizing accuracy and efficiency

Pending Publication Date: 2021-01-19
GALAXYCORE SHANGHAI
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  • Claims
  • Application Information

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Problems solved by technology

[0004] However, in the prior art, when using pixel binning (Binning) mode to read, it is prone to the problems of low reading accuracy and low focusing effect

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  • PD pixel reading method and device in pixel synthesis mode, storage medium and image acquisition equipment
  • PD pixel reading method and device in pixel synthesis mode, storage medium and image acquisition equipment
  • PD pixel reading method and device in pixel synthesis mode, storage medium and image acquisition equipment

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Embodiment Construction

[0036] As mentioned above, in the prior art, when the binning mode is used for reading, the problems of low reading accuracy and low focusing effect are prone to occur.

[0037] The inventors of the present invention have found through research that in the existing pixel Binning mode, it is necessary to introduce the electrons of the pixel units of the same color into the same floating diffusion area (Floating Diffusion), and then read them through the same set of reading circuits. Each PD pixel usually occupies a position of a certain color, and the PD pixel will be read together as a pixel unit of the color, resulting in the loss or reduction of the characteristics of the PD pixel, affecting subsequent calculations, and improving the accuracy of subsequent algorithms to achieve better results. focus effect.

[0038] Specifically, for a sensor (Sensor) with a PDAF point, it is necessary to extract the read data of the PD pixel, and then combine the algorithm to calculate the ...

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Abstract

The invention discloses a PD pixel reading method and device in a pixel synthesis mode, a storage medium and image acquisition equipment. The method comprises the steps: marking a pixel row, containing PD pixels, in an image sensor pixel array as a PD pixel row, and marking other pixel rows except the PD pixel row as non-PD pixel rows; for each minimum processing unit, dividing the non-PD pixel rows into at least two non-PD pixel row groups, wherein each non-PD pixel row group comprises one or more rows; according to the non-PD pixel rows in each non-PD pixel row group, performing first synthesis reading to obtain reading data of each non-PD pixel row group; performing second synthesis reading according to the reading data of each non-PD pixel row group. According to the method disclosed in the invention, the reading efficiency can be improved, and the read data can carry more PD pixels.

Description

technical field [0001] The present invention relates to the field of image sensors, in particular to a method and device for reading PD pixels in a pixel synthesis mode, a storage medium, and an image acquisition device. Background technique [0002] With the popularization of smart phones, people's demand for image capture quality of mobile smart terminals is increasing day by day. [0003] In the prior art, in order to achieve faster focusing, a phase detection auto focus (Phase Detection Auto Focus, PDAF) technology may be used, and a certain number of phase detection (Phase Detection, PD) pixels may be set. The PD pixels can be arranged in the image sensor pixel array, for example, placed adjacent to the pixels with imaging function, and realize the phase detection function as non-imaging pixels. [0004] However, in the prior art, when the pixel binning mode is used for reading, problems of low reading accuracy and focusing effect are likely to occur. Contents of the...

Claims

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Application Information

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IPC IPC(8): H04N5/369
CPCH04N25/704
Inventor 陈孟儒吉倩倩田明明
Owner GALAXYCORE SHANGHAI
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