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A mobile terminal and method for taking pictures thereof

A mobile terminal and photo technology, applied to color TV parts, TV system parts, TVs, etc., can solve problems such as time-consuming, unsatisfactory effects, and poor user experience, so as to improve user experience, The effect of improving quality

Active Publication Date: 2019-01-29
VIVO MOBILE COMM CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] The purpose of the present invention is to provide a method for taking pictures of a mobile terminal, aiming to solve the problem that the current mobile terminal uses a fixed frame to take pictures of the scene when taking pictures under low illumination. Problems with user experience

Method used

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  • A mobile terminal and method for taking pictures thereof
  • A mobile terminal and method for taking pictures thereof
  • A mobile terminal and method for taking pictures thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0034] As a first preferred embodiment of the present invention, in step S200, when the user selects the rear camera for shooting, the brightness F1 of the scene to be shot is calculated according to the following (preset) formula:

[0035]

[0036] Among them, A represents the ambient brightness corresponding to the exposure parameters of the rear camera, B represents the ambient brightness corresponding to the exposure parameters of the front camera, C represents the ambient brightness detected by the photosensitive sensor, E represents the preset brightness difference threshold, A and The units of B and C are cd / m2 (candela per square meter).

[0037] It should be noted that: when the user selects the rear camera for shooting (when it is detected that the rear camera is turned on), the ambient brightness corresponding to the exposure parameters of the rear camera is the main factor, and the current scene to be shot is calculated according to the above preset formula Brig...

Embodiment 2

[0043] As the first preferred embodiment of the present invention, the specific implementation manner of step S200 is as follows:

[0044] When the user selects the front camera for shooting, calculate the current brightness F2 of the scene to be shot according to the following formula:

[0045]

[0046] Among them, A represents the ambient brightness corresponding to the exposure parameters of the rear camera, B represents the ambient brightness corresponding to the exposure parameters of the front camera, C represents the ambient brightness detected by the photosensitive sensor, E represents the preset brightness difference threshold, A and The units of B and C are cd / m2.

[0047] This embodiment corresponds to Embodiment 1, the difference is that the user uses the front camera to shoot (when it is detected that the front camera is turned on), the ambient brightness corresponding to the exposure parameters of the front camera is the main, and the calculation is performed ac...

Embodiment 3

[0058] As a third preferred embodiment of the present invention, the calculation unit 200 is specifically used for:

[0059] When the user selects the rear camera for shooting, calculate the current brightness F1 of the scene to be shot according to the following formula:

[0060]

[0061] Among them, A represents the ambient brightness corresponding to the exposure parameters of the rear camera, B represents the ambient brightness corresponding to the exposure parameters of the front camera, C represents the ambient brightness detected by the photosensitive sensor, E represents the preset brightness difference threshold, A and The units of B and C are cd / m2.

[0062] Such as Figure 5 As shown, as the third preferred embodiment of the present invention, the photographing unit 400 includes a first acquisition subunit 401, a first photographing subunit 402, and a first synthesis subunit 403;

[0063] In the embodiment of the present invention, the first acquiring subunit 4...

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Abstract

The invention belongs to the field of mobile terminals, and provides a mobile terminal and a photographing method thereof. In the embodiment of the invention, by obtaining exposure parameters of a front camera and a back area of a mobile terminal in a current environment and ambient brightness detected by a photosensitive sensor to calculate the brightness of a current scene to be photographed, determining a brightness level of the scene brightness according to the scene brightness and a preset brightness level threshold, and photographing the current scene to be photographed according to a preset frame number corresponding to the brightness level, the quality of a photo photographed at low brightness can be improved, the processing time of noise reduction and synthesis of the photographed photo can be effectively controlled, and the user experience is enhanced.

Description

technical field [0001] The invention belongs to the field of mobile terminals, and in particular relates to a mobile terminal and a method for photographing the same. Background technique [0002] With the popularity of smart phones, and as users use smart phones to take pictures more and more frequently under low-light conditions, the requirements for low-light effects are also getting higher and higher. Due to the poor lighting environment in low-light scenes, the effect of normal photo mode is poor in color expression, noise is large, and the overall brightness of the picture is also low. Therefore, more and more algorithms are applied to low-light scenes, such as single-frame denoising and single-frame brightness enhancement. With the improvement of processor capabilities, more and more multi-frame algorithms are gradually applied to low-light scenes, multi-frame denoising, multi-frame brightness enhancement, etc. The multi-frame images here are all fixed values, as lo...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H04N5/232H04N5/235
Inventor 万美君龚柳青
Owner VIVO MOBILE COMM CO LTD
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