Zhejiang Uniview Technologies Co., Ltd.

Ning Ren

Qiankun Lv

A focusing method is disclosed, comprising: recording image statistical information corresponding to each position of a focusing lens from the beginning of focusing, wherein the image statistical information comprises a luminance value of image; determining whether the current scene is a point light source scene or not based on the recorded image statistical information; and executing a focusing process based on a regional luminance variance of image when the current scene is determined as a point light source scene. Wherein, the regional luminance variance of image denotes a mean of the square of differences between luminance values of a plurality of regions partitioned from an image and an average luminance value of the image. The method of the present disclosure can effectively improve the stability and accuracy of focusing effect under a point light source scene.

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Zhejiang, China

Ning Ren