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Mobile terminal and quick focusing method for photographing with the same

A focusing method and mobile terminal technology, applied to color TV parts, TV system parts, TVs, etc., can solve the problems of long focusing time and achieve the effect of reducing focusing time and fast focusing

Inactive Publication Date: 2015-11-25
HUIZHOU TCL MOBILE COMM CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] Embodiments of the present invention provide a mobile terminal and a fast focusing method for taking pictures, so as to solve the technical problem of too long focusing time when the camera takes pictures in the prior art

Method used

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  • Mobile terminal and quick focusing method for photographing with the same
  • Mobile terminal and quick focusing method for photographing with the same
  • Mobile terminal and quick focusing method for photographing with the same

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Embodiment Construction

[0024] The present invention will be described in further detail below in conjunction with the accompanying drawings and embodiments. In particular, the following examples are only used to illustrate the present invention, but not to limit the scope of the present invention. Likewise, the following embodiments are only some but not all embodiments of the present invention, and all other embodiments obtained by persons of ordinary skill in the art without creative efforts fall within the protection scope of the present invention.

[0025] see figure 1 , figure 1 The relationship diagram between object distance and lens moving distance in the process of taking pictures of the camera, from figure 1 As can be seen in the figure, for the distance from infinity to 50 cm, the lens only needs to move 52 microns, but for the distance from 50 cm to 6 cm, the lens needs to move 400 microns! That is to say, to obtain the best focus point, close objects take longer to move the lens than...

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Abstract

The invention provides a mobile terminal and a quick focusing method for photographing with the mobile terminal. The quick focusing method comprises the steps as follows: starting a camera and an application program corresponding to the camera; opening a photographing preview interface of the application program and displaying an image to be displayed; controlling the lens of the camera to focus at a preset object distance range; and obtaining a focusing method and finishing the shooting. The quick focusing method for photographing with the mobile terminal controls the lens of the camera to focus in the preset object distance range and sets a plurality of quick focusing distances from the infinite object distance to the set distance. Each quick focusing distance corresponds to a group of operation shortcut keys, and the lens is directly moved to the corresponding focusing distance to focus while the camera needs to perform quick focusing. In comparison with global search from infinity to micro distance while searching an optimal focusing point in an automatic focusing process in prior art, the method of the invention greatly reduces focusing time and realizes the quick focusing of the camera so as to meet a photographing requirement of the user to a snapshot.

Description

technical field [0001] The invention relates to the technical field of mobile terminal camera focusing technology, in particular to a mobile terminal and a fast focusing method for taking pictures. Background technique [0002] Using mobile phones to take pictures has become a part of our life, but we often encounter such a situation: when a certain scene or an object appears, we want to capture it quickly, but when we open the camera application on the mobile phone, the The captured scene or object has disappeared. [0003] The reason is mainly caused by too long focusing time before taking pictures. Since the main camera of most mobile phones is an AF (Auto Focus, AutoFocus) camera module with a motor (used to move the lens), the AF algorithm also takes time to focus, and this process takes about 300-800 milliseconds time or more. [0004] Therefore, how to solve the problem that the focusing time of the camera is too long can well realize that the camera takes pictures...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H04N5/232H04M1/725H04M1/72403
Inventor 唐向东
Owner HUIZHOU TCL MOBILE COMM CO LTD
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