Automatic focusing control method and device

Abstract

The invention discloses an automatic focusing control method and device, and the method comprises the steps: recording first data, wherein the first data is the image data, obtained after the former focusing, of an active region of front N frames; determining whether a target scene changes or not according to the comparison result of the first data with second data, wherein the second data is the image data, obtained in a preview state at intervals of M images, of a scene image active region; determining whether the target scene reaches a stable state or not according to a comparison result of third data with fourth data after the target scene changes, wherein the third data is the obtained image data of the current scene image active region, and the fourth data is the image data of a former scene image active region; and controlling imaging equipment to initiate automatic focusing after stabilization. The method starts automatic focusing after the target scene changes and then becomes stable, can carry out automatic focusing accurately in real time, and improves the system performance of the imaging equipment.

Description

Technical field [0001] The present invention relates to the field of automatic focusing technology, and in particular to an automatic focusing control method and device. Background technique [0002] Focusing refers to the process of changing the distance and the position of the distance through the focusing mechanism in the camera to make the image of the photographed object clear. With the rapid development of electronic devices, various electronic devices including shooting functions are used more and more frequently, and users have higher and higher requirements for focusing functions. [0003] In the prior art, the auto-focus function of the imaging device can usually be realized in the following ways. For example, a timer can be set to trigger the auto-focus action at regular intervals; in addition, an acceleration sensor can be added to the imaging recognition, and the motion state of the imaging device can be captured by the acceleration sensor To trigger the auto focus ac...

AI Technical Summary

Problems solved by technology

[0004] However, there are certain problems in the above-mentioned auto-focus process. For example, in the way of setting a timer to achieve auto-focus, there is no change in the target scene to be shot. Auto-focus action will be performed; or the target scene has changed, and the auto-focus cannot be triggered in time because the timing time has not arrived.

However, the method of triggering the auto-focus action by capturing the motion state of the imaging device through the acceleration sensor, when the imaging device is fixed but the target scene has changed, there will also be a problem that the auto-focus action cannot be triggered in real time

[0005] As mentioned above, the existing technology has the problem that it is difficult to trigger the automatic focus action in real time and accurately

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