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Method and system for processing dead pixels of an image sensor

A technology of an image sensor and a processing method, applied in the field of image sensors, can solve the problems of poor imaging effect of the image sensor, poor processing effect of dead pixels, etc., and achieve the effect of improving the processing effect of dead pixels

Active Publication Date: 2018-05-25
BEIJING LUSTER LIGHTTECH
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Problems solved by technology

[0008] Embodiments of the present invention provide a method and system for processing dead pixels of an image sensor, so as to solve the technical problem in the prior art that the processing effect of dead pixels is poor, which leads to poor imaging effect of the image sensor

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  • Method and system for processing dead pixels of an image sensor
  • Method and system for processing dead pixels of an image sensor

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Embodiment Construction

[0035] In order to enable those skilled in the art to better understand the technical solutions in the present invention, the technical solutions in the embodiments of the present invention will be clearly and completely described below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described The 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 shall fall within the protection scope of the present invention.

[0036] The method and system for processing dead pixels of an image sensor provided by an embodiment of the present invention, in addition to detecting the position information of the dead pixels, also detects the bad cluster type information corresponding to the bad pixels, that is, other bad pixels in the pixels around the bad pixels (...

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Abstract

The embodiment of the present invention discloses a method and system for processing bad pixels of an image sensor. The method includes: a mapping table of preset bad cluster types and interpolation algorithms; detecting the location information of bad pixels and the corresponding bad cluster type of the bad pixels information, and store; according to the location information of the bad point, search for the bad point in the collected image, select the matching interpolation algorithm in the mapping table according to the bad cluster type information corresponding to the bad point, and use the interpolation algorithm to calculate the bad point Perform interpolation. The method and system for processing bad pixels of an image sensor provided by the embodiments of the present invention classify bad clusters according to the distribution types of peripheral bad pixels, and use different interpolation algorithms for different types of bad clusters corresponding to bad pixels, so that each bad The best interpolation results can be obtained for all points, thereby improving the dead point processing effect of the image sensor.

Description

technical field [0001] The invention relates to the technical field of image sensors, in particular to a method and system for processing dead pixels of an image sensor. Background technique [0002] An image sensor is a device that converts an optical image into an electronic signal, and is widely used in fields such as photography, image acquisition, and industrial measurement. Generally, an image sensor includes a large number of photosensitive units, and each photosensitive unit corresponds to a pixel in an image output by the image sensor. [0003] Due to reasons such as the manufacturing process, transportation or storage methods, some photosensitive units of the image sensor are damaged and cannot normally receive light. The pixels corresponding to these photosensitive units that cannot normally receive light in the image are called dead pixels. Among them, the dead pixels mainly include the following three types: 1. Dark dots, which are mainly caused by the complete...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H04N5/357H04N5/367
Inventor 郭慧杨艺谢森
Owner BEIJING LUSTER LIGHTTECH
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