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Focusing method and device
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A focusing method and algorithm technology, applied in the field of communication, can solve problems such as poor experience and slow focusing speed
Inactive Publication Date: 2013-08-14
GUANGDONG OPPO MOBILE TELECOMM CORP LTD
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[0004] The purpose of the embodiments of the present invention is to provide a focusing method, aiming to solve the problem of slow focusing speed and poor experience of manually adjusting the distance between the camera and the target point for the camera of the mobile terminal and adjusting the photographed image to an acceptable definition. question
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Embodiment 1
[0021] figure 1 The implementation process of the focusing method provided by the embodiment of the present invention is shown, and the specific steps are described in detail as follows:
[0022] Step S101, when the first camera and the second camera of the mobile terminal are in preview, capture a first image including the target point through the first camera, and capture a second image including the target point through the second camera.
[0023] The dual camera includes a first camera and a second camera; the camera includes a photosensitive device and a lens, specifically, a camera includes a lens and a photosensitive device, and the lens is a convex lens for focusing; the photosensitive device uses To receive light to form image points.
[0024] In this embodiment, when the user uses the mobile terminal to take pictures and the target point enters the preview range, the dual cameras enter the preview state, and the first camera and the second camera respectively captur...
Embodiment 2
[0055] figure 2 The composition structure of the focusing device provided by the embodiment of the present invention is shown, and for the convenience of description, only the parts related to the embodiment of the present invention are shown;
[0056] The focusing device may be a software unit, a hardware unit or a combination of software and hardware running in the mobile terminal device, or it may be integrated into the terminal device as an independent pendant or run in the application system of the terminal device .
[0057] A focusing device, the focusing device may include an image acquisition unit 21, a distance obtaining unit 22 and a focusing unit 23, and the specific functions of each functional unit are as follows:
[0058] The image acquisition unit 21 is configured to collect the first image including the target point through the first camera when the first camera and the second camera of the mobile terminal enter the preview, and collect the image including th...
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Abstract
The invention is applicable to the field of communication, and provides a focusing method and device. The method comprises the following steps: when dual cameras of a mobile terminal accesses preview, collecting a first image and a second image, which both include target points, through a first camera and a second camera of the dual cameras; processing the first image and the second image according to the parallax principle; calculating the distance between the target points and a photosensor; and obtaining the optimum focal distance of lenses and the photosensor according to the focusing algorithm, and directly moving the lenses of both the first camera and the second camera to the optimum focusing position in one step. The focusing method and the focusing device are quick in focusing speed, good in experience and more humane.
Description
technical field [0001] The invention belongs to the field of communication, and in particular relates to a focusing method and device. Background technique [0002] At present, the mobile terminal has become a popular communication tool, which facilitates real-time mobile communication for people; the introduction of other functions, such as a camera function, expands the application field of the mobile terminal. [0003] With the improvement of the quality of life, people have higher and higher requirements for the focusing speed and accuracy of mobile terminals; at present, the commonly used method is: artificially adjust the distance between the camera and the target point, and slowly adjust the image from blurred to clear ; The existing focusing technology has the disadvantages of slow focusing speed and poor experience. Contents of the invention [0004] The purpose of the embodiments of the present invention is to provide a focusing method, aiming to solve the probl...
Claims
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