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Method and device for judging whether camera equipment is successfully focused

A camera equipment and a successful technology, applied in the field of judging whether the camera equipment is focused successfully, can solve the problems of low human eye detection efficiency and huge labor consumption, and achieve the effect of improving the efficiency of installation and debugging

Active Publication Date: 2020-01-07
ZHEJIANG DAHUA TECH CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] The present invention provides a method and equipment for judging whether the camera equipment is focused successfully, in order to solve the problem that when a large amount of surveillance cameras are installed, using traditional manpower to detect whether the camera part of the surveillance camera equipment can focus clearly on the scene will cost a lot manpower, and the problem of low efficiency detected by human eyes

Method used

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  • Method and device for judging whether camera equipment is successfully focused
  • Method and device for judging whether camera equipment is successfully focused
  • Method and device for judging whether camera equipment is successfully focused

Examples

Experimental program
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Embodiment 1

[0056] In the installation and commissioning process of monitoring camera equipment, the existing scheme uses traditional manpower to detect whether the monitoring camera equipment can focus on the scene clearly, which will consume a lot of manpower, and the detection results by human eyes may cause inaccurate detection results and low efficiency The problem. An embodiment of the present invention provides a method for judging whether the imaging device is successfully focused, such as figure 1 shown, including:

[0057] S101, after it is determined that the focusing is completed, acquire the video frame image of the first duration at the current focal length, and determine an initial operator value for evaluating the definition of the video frame image at the current focal length;

[0058] Establish a network connection between the automated debugging tool and the camera device. The automated debug tool performs data interaction with the camera device through the network pro...

Embodiment 2

[0128] A method for judging whether the imaging device is focused successfully in the present invention is described above, and an apparatus for performing the above judgment of whether the imaging device is focused successfully is described below.

[0129] see Figure 4 An apparatus for judging whether an imaging device is successfully focused according to an embodiment of the present invention includes:

[0130] The initial operator value determination module 401 is used to determine the initial operator value for evaluating the clarity of the video frame image under the current focal length after determining that the focus is completed, and obtaining the video frame image of the first duration under the current focal length;

[0131] The image acquisition module 402 is configured to adjust the focus to one side of the far end / near end for a second duration through the focusing device, and then adjust the focus to the other side of the near end / far end for a third duration, ...

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PUM

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Abstract

The invention provides a method and device for judging whether focusing of camera equipment succeeds or not, and the device comprises the steps: obtaining a video frame image of a first duration undera current focal length after the focusing is determined to be completed, and determining an initial operator value for evaluating the definition of the video frame image under the current focal length; focusing one side of the far end / near end for a second duration through a focusing device, then focusing the other side of the near end / far end for a third duration, and obtaining video frame images at different focusing positions in the focusing process; and determining a detection operator value for evaluating the definition of the video frame image under zooming, determining that the changerule of the detection operator value conforms to a preset rule, and determining that the focusing of the camera equipment succeeds when the initial operator value is greater than a preset threshold ofthe maximum detection operator value. Whether focusing of the camera equipment succeeds or not can be judged, and the problems of labor consumption and low efficiency caused by observing whether focusing succeeds or not through human eyes in the current camera equipment installation and debugging process are solved.

Description

technical field [0001] The invention relates to the technical field of optical imaging. In particular, it relates to a method and a device for judging whether an imaging device is successfully focused. Background technique [0002] With the accelerated construction of smart cities, domestic city-level video surveillance systems will form a pattern of wide coverage, large networking, and high intelligence after the development stage of digitization, networking, high-definition, and intelligence. At the same time, with the evolution of video surveillance technology, more than ten million surveillance cameras are densely distributed in the streets and alleys of domestic cities and towns, and the installation and commissioning of surveillance camera equipment is becoming increasingly heavy. [0003] For monitoring camera equipment with focusing function, after installation, it is necessary to debug the focusing focal length of the monitoring camera equipment to confirm whether ...

Claims

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Application Information

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IPC IPC(8): H04N17/00H04N5/232
CPCH04N17/002H04N23/67
Inventor 虞卫勇陈明珠卢二利李准房鑫平
Owner ZHEJIANG DAHUA TECH CO LTD