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Rapid exposure time detection method, device, electronic equipment, medium and system

A technology of exposure time and detection method, which is applied in television, electrical components, image communication, etc., can solve the problems of high cost and cumbersome operation, and achieve the effect of simple detection

Active Publication Date: 2020-07-31
HANGZHOU HIKVISION DIGITAL TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0005] The purpose of the embodiment of the present invention is to provide a method, device, electronic equipment, medium and system for detecting the fast exposure time of a camera, so as to solve the problem of cumbersome operation and high cost when detecting the fast exposure time

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  • Rapid exposure time detection method, device, electronic equipment, medium and system
  • Rapid exposure time detection method, device, electronic equipment, medium and system
  • Rapid exposure time detection method, device, electronic equipment, medium and system

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Embodiment Construction

[0060]The following will clearly and completely describe the technical solutions in the embodiments of the present invention with reference to the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only some, not all, embodiments of the present invention. Based on the embodiments of the present invention, all other embodiments obtained by persons of ordinary skill in the art without making creative efforts belong to the protection scope of the present invention.

[0061] For ease of understanding, the words appearing in the embodiments of the present application are explained below.

[0062] Sudden change in brightness: from the first brightness to the second brightness suddenly increased or decreased, and the brightness difference between the first and second reaches the brightness threshold.

[0063] Fast exposure: It means that the camera will adjust the exposure parameters when the brightness of the scene changes, so...

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Abstract

The embodiment of the invention provides a rapid exposure time detection method and device, electronic equipment, a medium and a system, and the method comprises the steps: obtaining a target video which is photographed by a camera and aims at a target scene, wherein the target scene has brightness abrupt change; obtaining the average brightness of each frame of image in the target video; determining a starting frame for brightness mutation and an ending frame for brightness mutation from each frame of image according to the average brightness of each frame of image; and determining the quickexposure time of the camera according to the number of frames between the starting frame and the ending frame and the frame rate of the camera. The problems that in the prior art, when a professionalinstrument is used for detecting the rapid exposure time, operation is tedious, and the cost is high can be solved.

Description

technical field [0001] The present invention relates to the technical field of automatic exposure, in particular to a rapid exposure time detection method, device, electronic equipment, medium and system. Background technique [0002] When the camera is recording, if the brightness of the recording scene changes greatly, that is, the brightness suddenly changes, the exposure problem of overexposure or underexposure will appear in the recorded video. In order to ensure the picture effect of the image in the recorded video, when the brightness of the recorded scene changes suddenly, the camera will quickly expose, that is, adjust the exposure parameters, such as gain, aperture, etc., so as to adjust the brightness of the image in the recorded video to the normal effect. [0003] The shorter the quick exposure time, the shorter the overexposure or underexposure time in the recorded video, and the better the effect of the recorded video image. Based on this, the length of the f...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H04N17/02H04N17/00
CPCH04N17/002H04N17/02
Inventor 章淼凌李加恒
Owner HANGZHOU HIKVISION DIGITAL TECH