Focusing method and device and mobile terminal

A focusing method and focus technology, applied in the field of communication, can solve the problems of reducing focusing speed, unstable position, unstable phase detection data output, etc., and achieve the effect of increasing focusing speed and reducing terminal power consumption

Active Publication Date: 2016-11-23
GUANGDONG OPPO MOBILE TELECOMM CORP LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0003] In practical applications, due to the influence of factors such as noise and external light when collecting the phase data of the pixels, the output of the phase detection data is unstable, which makes the defocus (out of focus) position calculated based on the phase dete

Method used

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  • Focusing method and device and mobile terminal
  • Focusing method and device and mobile terminal
  • Focusing method and device and mobile terminal

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[0055] The technical solutions in the embodiments of the present invention will be clearly and completely described below in conjunction with the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are part of the embodiments of the present invention, rather than all of them. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative work shall fall within the protection scope of the present invention.

[0056] The terms "first", "second", etc. in the specification and claims of the present invention and the above-mentioned drawings are used to distinguish different objects, rather than to describe a specific sequence. In addition, the term "including" and any variations of them are intended to cover non-exclusive inclusion. For example, a process, method, system, product, or device that includes a series of steps or modules is not limited to the liste...

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Abstract

The embodiment of the invention discloses a focusing method and device and a mobile terminal. The method comprises: when receiving a focusing instruction for a shot image, acquiring a first position parameter of a focusing motor, and detecting whether a value included in the first position parameter is lower than a preset focus threshold; if yes, carrying out current compensation on a current value of the focusing motor according to a preset compensation rule; acquiring a second position parameter of the focusing motor after carrying out the current compensation; when detecting that a position indicated by the second position parameter is a focusing position, determining that the shot image is successfully focused. By implementing the focusing method and device and the mobile terminal which are disclosed by the embodiment of the invention, power consumption of the terminal can be reduced, and a focusing speed can be promoted.

Description

technical field [0001] The present invention relates to the field of communication technology, in particular to a focusing method, device and mobile terminal. Background technique [0002] With the continuous development of terminal technology and image processing technology, the camera function of terminals such as mobile phones is used more and more frequently, which brings convenience to users to record their lives. At present, there are many focusing methods for mobile phones, such as phase focusing (English: PhaseDetection Auto Focus, referred to as PDAF). The principle is to reserve some shaded pixels on the photosensitive element for phase detection. Changes, etc. to determine the offset value of the focus, so as to achieve accurate focus, the phase focus is fast, so it is widely used. [0003] In practical applications, due to the influence of factors such as noise and external light when collecting the phase data of the pixels, the output of the phase detection dat...

Claims

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Application Information

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IPC IPC(8): H04N5/232
CPCH04N23/67
Inventor 李小朋
Owner GUANGDONG OPPO MOBILE TELECOMM CORP LTD
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