A method and device for adjusting exposure time, and camera

A technology of exposure time and adjustment method, which is applied in the field of cameras, can solve problems such as poor image clarity and large relative displacement, and achieve the effect of improving clarity

Active Publication Date: 2021-03-12
HANGZHOU HIKVISION DIGITAL TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

However, for a moving target, the relative displacement between the moving target and the camera is relatively large within the conventional exposure time of 40 milliseconds, which leads to poor image definition of the moving target captured by the camera.

Method used

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  • A method and device for adjusting exposure time, and camera
  • A method and device for adjusting exposure time, and camera
  • A method and device for adjusting exposure time, and camera

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Embodiment Construction

[0080] The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, but not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the protection scope of the present invention.

[0081] The terms of the present invention are explained as follows:

[0082] Exposure: refers to the amount of light entering the camera lens and illuminating the photosensitive element during the shooting process, which is controlled by the combination of aperture, shutter, and sensitivity.

[0083] Exposure time: Exposure time mainly refers to the photosensitive time of the photosensitive device. The longer the exposure time, the br...

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Abstract

An embodiment of the present invention provides a method for adjusting exposure time, which is applied to a video camera. The method includes: determining the moving speed of the shooting target; determining a first time parameter according to the moving speed; wherein, the greater the moving speed, the The smaller the first time parameter is; adjust the exposure time of the camera according to the determined first time parameter. By applying the exposure time adjustment method and device provided by the embodiments of the present invention, it is possible to adjust the exposure time of the camera during the process of capturing images by the camera, and improve the clarity of images collected for moving objects.

Description

technical field [0001] The present invention relates to the technical field of cameras, in particular to a method and device for adjusting exposure time, and a camera. Background technique [0002] Currently, the exposure time of the camera is usually set to 40ms. However, for a moving target, the relative displacement between the moving target and the camera is relatively large within the normal exposure time of 40 milliseconds, which results in poor image definition of the moving target captured by the camera. SUMMARY OF THE INVENTION [0003] The purpose of the embodiments of the present invention is to provide an exposure adjustment method and device, and a camera, so as to improve the clarity of an image collected for a moving target. [0004] The specific technical solutions are as follows: [0005] A method for adjusting exposure time, applied to a camera, the method comprising: [0006] Determine the movement speed of the shooting target; [0007] Determine a f...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H04N5/232H04N5/235
CPCH04N23/611H04N23/80H04N23/71H04N23/73
Inventor 王天臣
Owner HANGZHOU HIKVISION DIGITAL TECH
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