Focusing method and device, terminal and storage medium

Abstract

The invention relates to a focusing method and device, a terminal and a storage medium, and the method comprises the steps: determining the first target stroke information of a lens in a first direction based on a focusing instruction, and enabling the first direction to be the optical axis direction of the lens; according to the first target travel information, second target travel information of the lens in a second direction is determined, and the second direction is a direction perpendicular to the first direction; according to the first target stroke information and the second target stroke information, the lens is driven to move, the movement comprises sub-movement in the first direction and sub-movement in the second direction, and when the sub-movement of the lens in the first direction is driven to stop, the lens reaches a target focusing position matched with the focusing instruction. According to the method, during focusing, when the sub-motion of the lens in the optical axis direction stops, the optical center of the lens is still located on the optical axis, that is, the lens directly reaches the target focusing position matched with the focusing instruction, the situation of image blurring is avoided, the imaging quality is better guaranteed, and the use experience is improved.

Description

technical field [0001] The present application relates to the field of terminal technologies, and in particular, to a focusing method, device, terminal, and storage medium. Background technique [0002] When focusing, the focusing motor drives the lens module to move in the direction of the optical axis to achieve focusing. However, when the lens is displaced in the direction of the optical axis, the magnets fixed on the frame of the lens are also displaced accordingly, so that the interaction force between the Hall sensor in the optical image stabilizer (OIS) and the above-mentioned magnets A change occurs, which in turn causes the lens to be displaced in a direction perpendicular to the optical axis, that is, the optical center of the lens deviates from the optical axis. [0003] In the related art, after the focus motor drives the lens to move along the optical axis, the OIS is then controlled to drive the lens to move along the direction perpendicular to the optical axi...

AI Technical Summary

Problems solved by technology

[0004] However, in this method, after the focus motor drives the lens to move, the OIS has not yet driven the lens to perform displacement compensation, which not only takes a long time to focus, but also causes the image formed by the lens to be blurred

Especially in the high-speed focusing state, the final image effect is very poor

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