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Focus point determination method and device

A determination method and a technology for determining a device are applied in the field of focus point determination methods and devices, which can solve problems such as inaccurate focus points, unsatisfactory image quality, and influence on users' snapshot operations, etc., so as to ensure accuracy, avoid focus point selection or Switching operations, avoiding the effect of focusing errors

Active Publication Date: 2019-08-06
BEIJING KUANGSHI TECH CO LTD +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] However, because the focus point is specified by the user in advance based on experience, the quality of the image taken by the user is often not ideal
In addition, since different compositions require different focus points, the user needs to switch between different focus settings, which seriously affects the user's capture and other operations
In addition, when capturing some fast-moving objects, it is difficult for users to complete the focusing operation in a very short time
In addition, when focusing on some relatively distant and small objects, it is easy to appear that the user-specified focus point is inaccurate

Method used

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  • Focus point determination method and device
  • Focus point determination method and device
  • Focus point determination method and device

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Embodiment Construction

[0020] In order to make the objects, technical solutions and advantages of the present invention more apparent, exemplary embodiments according to the present invention will be described in detail below with reference to the accompanying drawings. Apparently, the described embodiments are only some embodiments of the present invention, rather than all embodiments of the present invention, and it should be understood that the present invention is not limited by the exemplary embodiments described here. Based on the embodiments of the present invention described in the present invention, all other embodiments obtained by those skilled in the art without creative effort shall fall within the protection scope of the present invention.

[0021] First, refer to figure 1 A focus point determination method 100 for implementing an embodiment of the present invention will be described. According to an embodiment of the present invention, the focus point determination method may be impl...

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Abstract

Provided are a focus point determination method and device. The focus point determination method includes: acquiring a framing image of a framing range; identifying a salient area in the framing image; and extracting at least one focusing point in the identified salient area. By identifying a salient area in the viewfinder image and extracting at least one focusing point in the identified salient area, the accuracy of the selected focusing point can be guaranteed to a certain extent, thereby ensuring the accuracy of focusing.

Description

technical field [0001] The present invention relates to the technical field of autofocus, and more particularly to a method and device for determining a focus point. Background technique [0002] At present, most digital cameras and portable smart devices equipped with cameras such as smartphones and tablet computers have autofocus devices, which make images near user-specified focus areas sharper by using methods such as contrast. [0003] However, since the focusing point is specified by the user in advance based on experience, the quality of the captured image is often unsatisfactory when the user is inexperienced. In addition, since different compositions require different focus points, the user needs to switch between different focus settings, which seriously affects the user's operations such as snapping. In addition, when capturing some fast-moving objects, it is difficult for users to complete the focusing operation in a very short time. In addition, when focusing ...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H04N5/232G06K9/46G06V10/25
CPCG06V10/462H04N23/675H04N23/611G06V10/25H04N23/80
Inventor 周舒畅姚聪周昕宇何蔚然冯迭乔印奇
Owner BEIJING KUANGSHI TECH CO LTD