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Real time detection system and detection method for camera definition

A real-time detection, camera technology, applied in image communication, television, electrical components, etc., can solve the problems of cumbersome operation, time-consuming, unstable judgment, etc., to achieve the effect of objective judgment, simple operation and wide applicability

Inactive Publication Date: 2016-07-13
深圳市同为数码科技股份有限公司
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Problems solved by technology

[0003] The object of the present invention is to provide a real-time detection system and detection method for camera definition, which solves the problem that current camera definition detection uses a definition test paper, which can only be distinguished by human eyes, which is highly subjective and time-consuming. Complicated operation, judging unstable technical problems

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  • Real time detection system and detection method for camera definition

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Embodiment Construction

[0042] The present invention will be further elaborated below with reference to the accompanying drawings.

[0043] see figure 1 , which is a structural block diagram of the real-time detection system for camera definition of the present invention.

[0044] The real-time detection system of the camera definition includes a standard camera definition detection environment, a camera 1 to be detected, a camera integrated access platform 2, a camera video acquisition platform 3, 4 camera definition detection platforms and the definition provided by the present invention Clarity detection client software developed by real-time detection method5;

[0045] The standard definition test environment of the camera is to place the definition test card in a lighting environment with sufficient standard light sources.

[0046] The camera 1 to be tested is connected to the integrated camera access platform 2 so as to complete the output of image signals.

[0047] The camera integrated acc...

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Abstract

The invention provides a real time detection system and detection method for camera definition. The system includes a definition detection environment, a comprehensive access platform, a video collecting platform and definition detecting client terminal software. The detection method includes steps of 1, obtaining a video stream; 2, initializing related parameters of a to-be-analyzed image; 3, selecting a to-be-analyzed area; 4, transmitting the selected image of the to-be-analyzed area and the initialization parameters to a computer; 5, converting the image of the to-be-analyzed area to a standard input image according to the initialization parameters; 6, detecting an initial line STL of a wedge-shaped image for the standard input image; 7, detecting the limit line LML of the wedge-shaped image; 8, detecting the end line ENDL of the wedge-shaped image; 9, calculating a resolution line number Res; 10, performing data treatment and displaying in real time. The system and method provided by the invention is fair and accurate in judgment.

Description

technical field [0001] The invention relates to the technical field of image quality evaluation in the security industry, in particular to a real-time detection system and detection method for camera definition. Background technique [0002] At present, my country's security monitoring industry is developing rapidly, and the application of surveillance cameras is very common. With the continuous increase in the demand for surveillance cameras, how to effectively ensure the imaging quality of the cameras while increasing the shipments of the cameras, that is, to quickly and accurately complete the detection of the imaging quality of the camera images. At present, the detection of camera clarity in the security monitoring industry is mainly based on the subjective evaluation of the TVL line number of the clarity test card taken by the visual camera. The higher the definition, the greater the line value corresponding to the densest place that the human eye can clearly distingui...

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H04N17/00
Inventor 虞晓凤
Owner 深圳市同为数码科技股份有限公司
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