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Focusing method and device, electronic device and storage medium

A technology of focusing area and movement direction, applied in the field of image processing, can solve the problem of slow focusing speed of camera

Active Publication Date: 2019-09-24
ZHEJIANG DAHUA TECH CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0005] The embodiment of the present application provides a focusing method, device, electronic equipment, and storage medium to solve the problem of slow camera focusing speed in the prior art

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  • Focusing method and device, electronic device and storage medium
  • Focusing method and device, electronic device and storage medium
  • Focusing method and device, electronic device and storage medium

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Embodiment Construction

[0086] In order to make the purpose, technical solutions and advantages of the embodiments of the present invention more clear, the technical solutions in the embodiments of the present invention will be clearly and completely described below in conjunction with the drawings in the embodiments of the present invention.

[0087] In the prior art, when the camera focuses on an environment area, if the area includes multiple people and multiple buildings, when the camera directly focuses on the environment area, the obtained images are not clear, because the people The weight of the environment area is relatively small. Therefore, when the camera focuses, the image of the person is not clear because the weight of the area where the person is located is small.

[0088] Based on this, the present application provides a focusing method so that when the camera is focused, the desired target object can be clearly focused. It should be noted here that the target object is any object tha...

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Abstract

The invention provides a focusing method and device, an electronic device and a storage medium, and relates to the technical field of image processing. The method comprises the steps of obtaining a pre-detected position area of at least one target object in a current frame image; according to the pre-segmented image blocks, determining the image block where the position area is located as a focusing area in the current frame of image, and configuring a weight value for each image block in the focusing area; determining a definition evaluation value of the current frame image according to the weight value of each image block in the focusing area; and carrying out focusing processing on the focusing area according to the definition evaluation value. According to the method, the focusing speed of the camera is increased by dynamically assigning the weight value to the focusing area.

Description

technical field [0001] The present application relates to the technical field of image processing, and in particular to a focusing method, device, electronic equipment, and storage medium. Background technique [0002] Camera devices are widely used in social and living places, such as: banks, shopping malls, stations, etc., through camera devices to collect people passing in living places, on the one hand, it helps the normal operation of banks, shopping malls, stations and other living places, reducing property losses and personnel Casualties, on the other hand, when an emergency occurs in a living place with a camera device, law enforcement officers can retrieve the surveillance video of the camera device to grasp the event situation in time. [0003] When the camera captures images of the monitoring area, only by focusing can the image of the monitoring area be clearly captured. In the prior art, the camera needs to try many times to find a clear point when focusing. ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H04N5/232
CPCH04N23/67H04N23/675
Inventor 陈天钧潘润发赵军卢二利况璐
Owner ZHEJIANG DAHUA TECH CO LTD
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