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Camera focusing method

A focusing method and camera technology, which is applied in the field of camera focusing, can solve the problems of poor photographing effect and low photo quality, and achieve the effect of improving photographing effect and photo quality

Inactive Publication Date: 2015-07-29
SHENZHEN GIONEE COMM EQUIP
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

The existing focusing method has the problem of poor photo quality in low-contrast and low-light environments, and the quality of the obtained photos is not high

Method used

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Embodiment Construction

[0022] The following will clearly and completely describe the technical solutions in the embodiments of the present invention with reference to the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are some of the embodiments of the present invention, but not all of them. Based on the embodiments of the present invention, all other embodiments obtained by persons of ordinary skill in the art without creative efforts fall within the protection scope of the present invention.

[0023] The embodiment of the present invention provides a camera focusing method. When the camera is detected to be started, the terminal transmits the first ultrasonic signal to the determined subject through the built-in generator, and receives the first ultrasonic signal transmitted to the subject and reflects it back. The second ultrasonic signal, obtain the sending time of the first ultrasonic signal transmitted by the built-in generator, and the r...

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Abstract

The embodiment of the invention provides a camera focusing method. The method comprises the following steps: when detecting that a camera is started, transmitting a first ultrasonic signal to a determined photographed object through a built-in generator by a terminal; receiving a second ultrasonic signal reflected back by the first ultrasonic signal transmitted to the photographed object; acquiring transmission time for transmitting the first ultrasonic signal through the built-in generator; acquiring receiving time for receiving the second ultrasonic signal; acquiring distance between the terminal and the photographed object according to a time difference value between the transmitting time and the receiving time; focusing the camera according to the distance between the terminal and the photographed object. According to the embodiment of the invention, ultrasonic focusing can be realized by using the built-in generator, so that the photographing effect is improved and the picture quality is improved.

Description

technical field [0001] The invention relates to the field of electronic technology, in particular to a method for focusing a camera. Background technique [0002] With the rapid development of electronic technology and image processing technology, the camera function of terminals is becoming more and more powerful. In the process of taking pictures, in order to be able to take better clear pictures, it is necessary to focus, that is, to automatically adjust the position of the lens according to the current scene to achieve the highest clear pictures. The existing focusing method has the problem that the photographing effect is poor in low-contrast and low-light environments, and the quality of the obtained photographs is not high. Contents of the invention [0003] An embodiment of the present invention provides a method for focusing a camera, which can use a built-in generator to implement ultrasonic focusing, thereby improving the effect of taking pictures and improving...

Claims

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Application Information

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IPC IPC(8): H04N5/232
Inventor 刘立荣
Owner SHENZHEN GIONEE COMM EQUIP
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