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Binary data output method of image sensor

An image sensor and output method technology, applied in the field of image sensors, can solve the problems of inability to receive images, consume time, obtain binarized data, etc., and achieve the effects of expanding the scope of application, eliminating isolated noise, and high accuracy

Active Publication Date: 2019-01-15
思特威(上海)电子科技股份有限公司
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Problems solved by technology

However, the above method requires a certain amount of time for the back-end hardware device to process the original image data.
In addition, due to cost constraints, some back-end hardware devices cannot receive images with too high a frame rate, and accordingly, cannot process the original image data to obtain binarized data

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  • Binary data output method of image sensor
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  • Binary data output method of image sensor

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Embodiment Construction

[0042] The content proposed by the present invention will be described in detail below in conjunction with the accompanying drawings.

[0043] refer to figure 1 , is a flowchart of a binarized data output method of an image sensor in an embodiment of the present invention.

[0044] figure 1 The binarized data output methods of the image sensor include:

[0045] Step S101, dividing the pixel array of the image sensor into multiple sub-pixel arrays;

[0046] Step S102, performing median filtering on the raw image data acquired by the image sensor, and determining the gray value of each pixel in the pixel array;

[0047] Step S103, calculating the area binarization threshold of the sub-pixel array according to the gray value of each pixel in the sub-pixel array;

[0048] Step S104, determining the reference sub-pixel array of the pixel, and calculating the pixel binarization threshold of the pixel according to the area binarization threshold of the reference sub-pixel array a...

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Abstract

The invention relates to a binary data output method of an image sensor, which divides a pixel array of the image sensor into a plurality of sub-pixel arrays, performs median filtering on the originalimage data acquired by the sub-pixel arrays, and determines the gray value of each pixel; Then, the region binarization threshold of each sub-pixel array is calculated by using the gray value of eachpixel. The pixels of each sub-pixel array determine their pixel binarization thresholds according to the region binarization thresholds of their reference sub-pixel arrays and the distance of the pixels from the center point of the reference sub-pixel array. As that binarization threshold value of the corresponding pixels are calculate for each pixel, the binarization data output by the image sensor has higher accuracy, the application range of the image sensor is expanded, and the binarization data acquisition efficiency is high.

Description

technical field [0001] The invention relates to the technical field of image sensors, in particular to a binarized data output method of an image sensor. Background technique [0002] A CMOS image sensor is a semiconductor device that converts an optical image into an electrical signal by using the photoelectric effect. Due to its simple structure and high reliability, it has been widely used in many fields. Such as smartphones, tablet computers, automobiles, security monitoring, industrial cameras and machine vision, etc. [0003] In some applications (such as code scanning), the binarized image data is required. For such requirements, the existing technology first obtains and stores original image data through an image sensor; then, the back-end hardware device processes the original image data to obtain binarized data. However, in the above method, the back-end hardware device needs to consume a certain amount of time when processing the original image data. In additio...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H04N5/374H04N5/357
CPCH04N25/60H04N25/76
Inventor 邵科张浩
Owner 思特威(上海)电子科技股份有限公司
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