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Focus control method, front image processor and electronic device

An image processor and focus control technology, applied in the field of image processing, can solve problems such as poor focus efficiency, and achieve the effect of improving focus efficiency

Active Publication Date: 2022-07-15
GUANGDONG OPPO MOBILE TELECOMM CORP LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

In the related art, the focusing efficiency of the electronic device driven by the open-loop motor to focus the lens in the camera is often poor.

Method used

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  • Focus control method, front image processor and electronic device
  • Focus control method, front image processor and electronic device
  • Focus control method, front image processor and electronic device

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Embodiment Construction

[0034] It should be noted that the principles of the present application are exemplified by being implemented in a suitable computing environment. The following description is based on the specific embodiments of the present application as illustrated, and should not be construed as limiting other specific embodiments of the present application not detailed herein.

[0035] The relational terms such as first and second involved in the following embodiments of the present application are only used to distinguish one object or operation from another object or operation, and are not used to limit the existence of actual relationship between these objects or operations. sequence relationship.

[0036] The embodiments of the present application provide a focus control method, a front image processor, and an electronic device, wherein the execution subject of the focus control method may be the front image processor provided in the embodiments of the present application, or may be a...

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PUM

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Abstract

The present application provides a focus control method, a front-end image processor, and an electronic device, wherein an open-loop motor in a camera is provided with an initial drive current to drive the lens in the camera to an initial position; an image of the initial position is collected by the camera, and obtain the first definition of the focus area of ​​the camera according to the initial position image; update the driving current provided to the open-loop motor according to the first definition, and drive the lens to the updated position; perform image acquisition through the camera again to obtain the updated position image, and The second definition of the focus area is acquired according to the updated position image; the driving current provided to the open-loop motor is updated according to the second definition, and the cycle is repeated until the lens is driven to the in-focus position corresponding to the focus area. In this way, by simulating the feedback process of the closed-loop motor, the purpose of improving the focusing efficiency of the open-loop motor is achieved.

Description

technical field [0001] The present application relates to the technical field of image processing, and in particular, to a focus control method, a front-end image processor, and an electronic device. Background technique [0002] At present, users usually use electronic devices with cameras (such as digital cameras, smart phones, etc.) to capture images, so as to record what happens around them, the scenery they see, and the like anytime and anywhere. In order to improve the user's shooting experience, it is not only required to improve the camera pixels of the electronic device, but also to improve the shooting speed of the electronic device, and the shooting speed depends to a certain extent on the focusing speed of the camera. In the related art, an electronic device driven by an open-loop motor to focus a lens in a camera often has poor focusing efficiency. SUMMARY OF THE INVENTION [0003] Embodiments of the present application provide a focus control method, a front...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H04N5/232
CPCH04N23/675H04N23/695
Inventor 吴义孝
Owner GUANGDONG OPPO MOBILE TELECOMM CORP LTD