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Focusing method and device

A focusing method and technology of focusing device, applied in the field of communication, can solve problems such as low frame rate and slow focusing speed, and achieve the effect of improving focusing speed and frame rate

Active Publication Date: 2019-04-19
GUANGDONG OPPO MOBILE TELECOMM CORP LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] However, in a dark environment, such as ISO (photo sensitivity, sensitivity) > 1000, the frame rate of the camera will become very low, generally around 10 frames, so the focusing speed becomes slower when using contrast focusing

Method used

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Embodiment Construction

[0018] In order to better understand the technical problems to be solved by the present invention, the technical solutions adopted and the technical effects achieved, the specific embodiments of the present invention are described in detail below with reference to the accompanying drawings.

[0019] like figure 1 As shown, a focusing method includes the steps:

[0020] S110. When receiving the focus trigger instruction, shorten the exposure time under the current focus environment from the default exposure time to a new exposure time, and increase the sensitivity under the current focus environment from the default sensitivity to the new sensitivity;

[0021] S120. Perform focusing according to the new exposure time and the new sensitivity.

[0022] The programs or chips implemented according to the focusing method can be applied to the mobile terminal. Since the user generally does not pay attention to the preview effect of the picture during the focusing process, that is, ...

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Abstract

The invention relates to a focusing method and device. The method includes the steps of: shortening the exposure time under the current focus environment from the default exposure time to a new exposure time when receiving the focus trigger instruction, and increasing the sensitivity under the current focus environment from the default sensitivity to the new exposure time Sensitivity: focusing according to the new exposure time and the new sensitivity. The invention can not only improve the focusing speed of contrast focusing in dark light environment, but also improve the focusing speed of contrast focusing in bright light environment.

Description

technical field [0001] The present invention relates to the field of communication technologies, and in particular, to a focusing method and device. Background technique [0002] With the development of technology, mobile terminals, such as smart phones, have more and more diverse functions. The requirements of users on the photographing function of the mobile terminal are also getting higher and higher. When taking pictures, there are many ways to focus, such as phase focus, contrast focus, and laser focus. Contrast focusing has become a commonly used focusing method due to its various advantages such as low cost. [0003] However, in a dark light environment, such as ISO (photo sensibility)>1000, because the frame rate of the camera will become very low, generally around 10 frames, the focusing speed becomes slower when using contrast focusing. SUMMARY OF THE INVENTION [0004] Based on this, it is necessary to provide a focusing method and device in order to solve...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H04N5/232G03B13/36G03B30/00
Inventor 李小朋卓世杰
Owner GUANGDONG OPPO MOBILE TELECOMM CORP LTD