Focusing method and apparatus, and computer device

Abstract

The invention discloses a focusing method and apparatus, and a computer device. The focusing method comprises the steps of when a camera finishes focusing, obtaining first position information of a human face in a current frame of a to-be-shot image; before shooting the to-be-shot image, obtaining second position information of the human image in each frame after the current frame; calculating a distance between the second position information and the first position information; and if the distance between the second position information and the first position information is greater than a preset change threshold, triggering the camera to perform re-focusing. The focusing method and apparatus, and the computer device disclosed by the invention can implement that when a change of a human face position exceeds the preset change threshold, the re-focusing is triggered, and the definition of the to-be-shot image is not frequently changed, so the user experience is improved; and thus, the shooting speed can be accelerated, and the power consumption of the camera is reduced.

Description

technical field [0001] The present application relates to the technical field of image processing, in particular to a focusing method, device and computer equipment. Background technique [0002] In the related art in the prior art, when it is detected that the information of a region of interest (Region Of Interest, hereinafter referred to as: ROI) of a face changes, the camera will refocus. In this way, even if the face in the image to be captured is only slightly moved, the camera will continue to refocus, but in fact, when the face is only slightly moved, the image to be captured is clear and does not need to be refocused. Frequent refocusing of the camera will make the The image to be shot repeats the changing process of "clear-unclear-clear" continuously, the user experience is poor, and the camera can only shoot the above-mentioned image to be shot after the focus is completed, which affects the shooting quality to a certain extent. speed, the power consumption of th...

AI Technical Summary

Problems solved by technology

In this way, even if the face in the image to be captured is only slightly moved, the camera will continue to refocus, but in fact, when the face is only slightly moved, the image to be captured is clear and does not need to be refocused. Frequent refocusing of the camera will make the The image to be captured keeps repeating the changing process of "clear-unclear-clear", which has poor user experience, and the camera can only shoot the above-mentioned image to be captured after the focus is completed, which affects the shooting quality to a certain extent. Speed, the power consumption of the camera is also relatively large

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