Focusing method and apparatus, electronic device, and storage medium

By focusing based on target focus strategies and clustering techniques in the multi-object distance scenario, the focus inaccuracy caused by multi-object distance in traditional methods is solved, and a higher focus accuracy is achieved.

WO2025060440A1 Publication Date: 2025-03-27ZHEJIANG UNIVIEW TECH CO LTD
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Patent Information

Application Number
PCT/CN2024/091955
Authority / Receiving Office
WO · WO
Patent Type
Applications
Current Assignee / Owner
Priority Date
2023-09-22
Filing Date
2024-05-09
Publication Date
2025-03-27

AI Technical Summary

Technical Problem

In multi-object distance scenarios, the traditional focusing method has multiple peaks in the FV value curve after weighted superposition, resulting in a decrease in the accuracy of the focus.

Method used

By focusing search based on the target focus strategy, the target image of the focus motor at each focus position is obtained, the FV value of each image block is determined, the maximum FV value is determined for each target image block at the same position, and the focus positions corresponding to these maximum FV values ​​are clustered, and finally focus based on the clustering results.

Benefits of technology

The distance distribution law is obtained through the clustering results of the maximum FV value corresponding to the image block, which improves the accuracy of focus and avoids the problem of inaccuracy of focus caused by multiple peaks in the traditional method.

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Abstract

The present disclosure relates to the technical field of photographing, and provides a focusing method and apparatus, an electronic device, and a storage medium. The method comprises: performing focus searching on the basis of a target focusing strategy, and obtaining a first target image captured by an electronic device when a focusing motor is at each first focus position; for each first target image, determining FVs of at least two image blocks in the first target image; for each target image block at the same position of each first target image, on the basis of the FVs of the target image block in all the first target images, determining a first maximum FV corresponding to the target image block; clustering the focus positions corresponding to all the first maximum FVs to obtain a first clustering result; and performing focusing on the basis of the first clustering result.
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