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Mobile phone camera-based latitude realization method and mobile phone

A technology of a mobile phone camera and an implementation method, which is applied to a mobile phone camera-based tolerance implementation method and the field of mobile phones, can solve the problems of poor photo effect, easy overexposure, and small dynamic range of mobile phones, so as to achieve good camera effect and improve tolerance. Effect

Active Publication Date: 2011-03-30
HUIZHOU TCL MOBILE COMM CO LTD
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  • Abstract
  • Description
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AI Technical Summary

Problems solved by technology

[0003] However, there is a common problem with current mobile phone cameras, that is, the dynamic range of the mobile phone is too small, it is easy to overexpose in places with high brightness, and it is easy to underexpose in places with low brightness, resulting in poor photos.

Method used

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  • Mobile phone camera-based latitude realization method and mobile phone
  • Mobile phone camera-based latitude realization method and mobile phone
  • Mobile phone camera-based latitude realization method and mobile phone

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Embodiment Construction

[0036] Dynamic range is a technical term that mathematically describes the brightness level range of a given scene. The relative value of the ratio of the brightest brightness to the lowest brightness of the scene expressed in logarithmic value is expressed in D value. Various scenes, negatives and photos have their own specific range of D value.

[0037] However, the dynamic range in the real world is huge. For example, an indoor scene reflecting the scenery under the sunlight outside the window has a dynamic range of about 100,000:1, which is equivalent to 5 when converted to a D value. The D value of SLR cameras is generally 2.5D, while the D value of mobile phone cameras is only 1.

[0038] Generally, the method of obtaining HDR (High Dynamic Range) photos with a camera is to set up the camera with a tripod, then measure the light in the brightest area, and then use the exposure value measured in the brightness area to perform bracket exposure, and then The resulting set ...

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Abstract

The invention relates to the field of mobile communication terminals, and discloses a mobile phone camera-based latitude realization method and a mobile phone. In the mobile phone camera-based latitude realization method and the mobile phone provided by the invention, two cameras are adopted, one camera performs photometry and simultaneously changes the exposure of the second camera, the two cameras simultaneously perform shooting, and shot images are synthesized in a baseband chip by a software synthesis algorithm to obtain a photo with a large dynamic range. Therefore, the mobile phone has a new latitude shooting function and a better shooting effect, and the shot photos are clearer.

Description

technical field [0001] The invention relates to the field of mobile communication terminals, in particular to a method for realizing latitude based on a mobile phone camera and a mobile phone. Background technique [0002] With the development of mobile communication and the improvement of people's living standards at any time, the use of mobile phones is becoming more and more popular. Mobile phones have more and more functions, and mobile phone camera modules have become a standard configuration of mobile phones. [0003] However, there is a common problem with current mobile phone cameras, that is, the dynamic range of the mobile phone is too small, it is easy to overexpose in places with high brightness, and it is easy to underexpose in places with low brightness, resulting in poor photos. [0004] Therefore, the prior art still needs to be improved and developed. Contents of the invention [0005] The technical problem to be solved by the present invention is that, ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H04M1/725H04M1/02H04M1/72439H04M1/72448
CPCH04N5/23206H04N5/247H04N23/661H04N23/90
Inventor 柯骏张磊
Owner HUIZHOU TCL MOBILE COMM CO LTD
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