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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 time-consuming, unable to receive images, and obtain binarized data, etc., achieve high accuracy, expand the application range, and eliminate isolated noise effects

Active Publication Date: 2021-02-26
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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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

A binary data output method of an image sensor, which divides the pixel array of the image sensor into a plurality of sub-pixel arrays, performs median filtering on the acquired original image data, and determines the gray value of each pixel; then uses each Calculate the area binarization threshold of each sub-pixel array according to the gray value of the pixel; the pixel of each sub-pixel array determines its value according to the area binarization threshold of its reference sub-pixel array and the distance between the pixel and the center point of the reference sub-pixel array. Pixel binarization threshold. In the present invention, the corresponding pixel binarization threshold is calculated for each pixel, the binarization data output by the image sensor has a higher accuracy rate, the application range of the image sensor is expanded, and the binarization data acquisition efficiency is higher.

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 Patents(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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