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A focus mode control method and terminal device

A terminal equipment and mode control technology, applied in the field of electronics, can solve problems such as speeding up focusing speed, reducing imaging quality, side effects, etc., to avoid color block problems and improve imaging quality.

Active Publication Date: 2019-07-19
GUANGDONG OPPO MOBILE TELECOMM CORP LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

However, while laser focusing uses the infrared sensor to detect the distance between the subject and the lens to speed up the focusing speed, it also brings certain side effects. The red light makes the photographed objects have color blocks, which reduces the image quality

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  • A focus mode control method and terminal device
  • A focus mode control method and terminal device
  • A focus mode control method and terminal device

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Embodiment Construction

[0050] In order to make the object, technical solution and advantages of the present invention clearer, the present invention will be further described in detail below in conjunction with the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, rather than all embodiments . Based on the embodiments of the present invention, all other embodiments obtained by persons of ordinary skill in the art without making creative efforts belong to the protection scope of the present invention.

[0051] The terms "first" and "second" in the specification, claims and drawings of the present invention are used to distinguish different objects, rather than to describe a specific order. Furthermore, the terms "include" and "have", as well as any variations thereof, are intended to cover a non-exclusive inclusion. For example, a process, method, system, product or device comprising a series of steps or units is not limited to the listed...

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Abstract

The embodiment of the present invention discloses a focusing mode control method and terminal equipment, which are applied in the field of electronic technology, wherein the realization of the method includes: obtaining the target distance between the camera and the subject, and the first red component value in the current preview image , and the second red component value in the last preview image; determine whether the target distance is less than a first preset threshold; determine whether the difference between the first red component value and the second red component value greater than a second preset threshold; if the target distance is less than the first preset threshold, and the difference between the first red component value and the second red component value is greater than the second preset threshold , the laser focus mode is turned off. The implementation of the embodiments of the present invention can effectively avoid the problem of color blocks in the photographed pictures caused by laser focusing, and further improve the imaging quality.

Description

technical field [0001] The present invention relates to the field of electronic technology, in particular to a focus mode control method and a terminal device. Background technique [0002] At present, most terminal devices use laser focusing to focus when shooting. The principle of laser focusing is to use the characteristics of infrared laser concentration, which is not easy to spread, to calculate the time difference between the target object and the rangefinder by recording the time difference when the infrared rays are emitted from the transmitter, reflected by the surface of the target object, and then received by the rangefinder. Finally, use the calculated distance to achieve focus. However, while laser focusing uses the infrared sensor to detect the distance between the subject and the lens to speed up the focusing speed, it also brings certain side effects. The red light makes the photographed objects have color blocks, which reduces the image quality. Contents...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H04N5/232
CPCH04N23/67
Inventor 熊星
Owner GUANGDONG OPPO MOBILE TELECOMM CORP LTD