A focusing method, device and equipment for taking pictures of a terminal

Abstract

The embodiment of the present invention discloses a method, device, and equipment for taking pictures of a terminal, relate to the technical field of electronic equipment, and can improve the focusing precision of a terminal in the process of taking pictures and focusing. The method of the embodiment of the present invention includes: obtaining the first confidence degree and the second confidence degree; when the first confidence degree and the second confidence degree meet the preset conditions, determining the target ranging method and the target object distance; , to determine the target position so that the first camera and the second camera can focus. The invention is applicable to the focusing process.

Description

technical field [0001] The present invention relates to the technical field of electronic equipment, in particular to a method, device and equipment for taking pictures of a terminal. Background technique [0002] With the development of the technical field of electronic equipment, especially the popularization of photographing equipment, users also have higher demands on the focusing speed during the photographing process. At present, the commonly used focusing algorithms mainly include active focusing and passive focusing, wherein the active focusing can be realized by a ranging method, and the passive focusing can be realized by a hill-climbing method. The mountain-climbing method is mainly to find the lens position with the highest contrast as the lens position corresponding to the quasi-focus image by analyzing the sharpness of the images corresponding to all lens positions, so as to complete the focusing; the distance measurement method is mainly to calculate the corre...

AI Technical Summary

Problems solved by technology

[0003] However, due to certain limitations in binocular ranging, such as: poor accuracy for low illumination, flat areas, and repetitive patterns; low ranging accuracy when the VCM position is far from the in-focus position; and, the overall measurement The distance accuracy is lower than that of laser ranging

Therefore, when the texture of the object in the focus window is weak, such as: white walls, blue sky, etc., or the objects in the focus window are repeated, such as: plaid shirts, etc., in these scenes, use binocular ranging combined with VCM to measure After completing active focusing, it is often easy to obtain wrong depth information, which leads to the failure of the focusing process and greatly reduces the accuracy of the focusing process

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