WO2015131543A1

WO2015131543A1 - Method and terminal for photographing using front camera of terminal

Info

Publication number: WO2015131543A1
Application number: PCT/CN2014/090985
Authority: WO
Inventors: 李九兴
Original assignee: 中兴通讯股份有限公司
Priority date: 2014-10-15
Filing date: 2014-11-13
Publication date: 2015-09-11
Also published as: CN105516580A

Abstract

A method and terminal for photographing using a front camera of a terminal, the method comprising: a terminal detects a photographing action of a front camera; determining whether the flash needs to be turned on for photographing, if yes, then controlling the liquid crystal display (LCD) screen and the LCD screen backlight module to emit light with the light intensity required by the flash. When photographing using the front camera, the method and the terminal provided by the present invention use an LCD screen to realize the function for a front flash by controlling the LCD screen and the backlight intensity thereof, thus meeting the requirement for the front flash of a mobile terminal. The present invention can economically and better improve user experience without adding a front flash to achieve the flash function.

Description

Method and terminal for taking pictures by using front camera of terminal

Technical field

The invention relates to the technical field of photographing by using a front camera of a terminal, in particular to a method and a terminal for photographing by using a front camera of a terminal.

Background technique

Currently, mobile terminals are used in a variety of scenarios, many of which are not very good. Especially for office workers, they can only communicate with others through mobile terminals in their spare time, while their spare time is often at night. If the user is photographing in the bar, outdoors, or in a poorly lit room at night, using a front camera without a front flash, the effect will be poor. Due to cost, effect, structural shape and other factors, the general mobile terminal does not use a separate front flash like the rear camera. This affects the normal use of the user to a certain extent, and brings inconvenience to the user.

Summary of the invention

The technical problem to be solved by the present invention is to provide a method and a terminal for photographing by using a front camera of a terminal, and the front flash of the mobile terminal can be satisfied without additionally adding a front flash.

In order to solve the above technical problems, the following technical solutions are adopted:

A method for photographing by using a front camera of a terminal, comprising:

The terminal detects the photographing action of the front camera;

The terminal determines whether the photo needs to be turned on, and if necessary, controls the liquid crystal display LCD display and the LCD screen backlight module to emit light of the required light intensity of the flash.

Optionally, the step of determining whether the photographing needs to be turned on includes:

The intensity of the ambient light is detected. When the intensity of the ambient light is less than a preset threshold, the photo needs to be turned on, otherwise the flash does not need to be turned on.

Optionally, the step of controlling the LCD display and the LCD screen backlight module to emit light of the required light intensity of the flash lamp comprises:

Adjusting the light transmittance and the light collecting direction of the LCD display panel, and/or adjusting the intensity of the backlight of the LCD screen backlight module to obtain the light intensity of the flash light.

Optionally, the method further includes:

The required light intensity of the flash is set in advance, or the required light intensity of the flash is dynamically determined according to the detected light intensity of the ambient light and/or the focal length of the front camera.

Optionally, the method further includes:

After the photographing is finished, the LCD display screen and the LCD screen backlight module are controlled to return to the state before the photographing.

A terminal includes a detection module decision module and a control module, wherein:

The detecting module is configured to: detect a camera action of the front camera;

The determining module is configured to: when detecting the photographing action of the front camera, determine whether the photographing needs to be turned on, and send the judgment result to the control module;

The control module is configured to: if the result of the determination is that the flash needs to be turned on, control the LCD display and the LCD screen backlight module to emit light of the required light intensity of the flash.

Optionally, the determining module is configured to determine whether the camera needs to be turned on according to the following manner:

Optionally, the control module is configured to control the LCD display and the LCD screen backlight module to emit light of a required light intensity of the flash as follows:

Optionally, the terminal further includes a configuration module connected to the control module, where:

The configuration module is configured to: preset a required light intensity of the flash, or dynamically determine a required light intensity of the flash according to the detected light intensity of the ambient light and/or the focal length of the front camera.

Optionally, the control module is further configured to: after the photographing ends, control the LCD display screen and the LCD screen backlight module to return to the state before the photographing.

A computer program, comprising program instructions, when the program instructions are executed by a terminal, enabling the terminal to perform any of the above methods of photographing with a front camera of a terminal.

A carrier carrying the above computer program.

Compared with the related art, the method and the terminal for photographing by using the front camera of the terminal provided by the embodiment of the present invention use the front panel to control the brightness of the LCD display and the backlight thereof, and use the LCD screen to realize the front flash. Function to meet the front flash requirements of mobile terminals. In this way, the flash function can be realized without additional front flash, which is economical and can better enhance the user experience.

BRIEF abstract

1 is a structural diagram of a terminal in an embodiment;

2 is a flow chart of a method for photographing by using a front camera of a terminal in the embodiment.

Preferred embodiment of the invention

Embodiments of the present invention will be described in detail below with reference to the accompanying drawings. It should be noted that, in the case of no conflict, the features in the embodiments and the embodiments in the present application may be arbitrarily combined with each other.

Example:

As shown in FIG. 1 , this embodiment provides a terminal, including:

The detecting module 101 is configured to: detect a photographing action of the front camera;

Among them, the front camera is the camera at the front end of the terminal.

The determining module 102 is configured to: when detecting the photographing action of the front camera, determine whether the photographing needs to be turned on, and send the judgment result to the control module;

The decision module 102 is configured to: determine whether the photo needs to be turned on, and the package include:

The control module 103 is configured to: if the determination result is that the flash needs to be turned on, control the LCD display screen and the LCD screen backlight module to drive the light that emits the required light intensity of the flash.

The control module 103 is configured to: control the LCD display and the LCD screen backlight module to emit light of the required light intensity of the flash, including:

In addition, the terminal of the embodiment further includes a configuration module (not shown) connected to the control module, and is configured to: preset a required light intensity of the flash, or according to the detected light intensity of the ambient light. / or the focal length of the front camera dynamically determines the required light intensity of the flash.

Among them, the LCD display screen displays the image information that the processor needs to display in image form. The LCD display screen can be, but not only, the liquid crystal screen currently used on the terminal; the LCD screen backlight module provides a backlight source for the LCD display screen, and the LCD screen backlight module can be, but not only, the light-emitting diode used in the current terminal.

As shown in FIG. 2, this embodiment provides a method for photographing by using a front camera of a terminal, including the following steps:

S101: The terminal detects a photographing action of the front camera;

For example, detecting a camera action such as focusing of a front camera;

S102: determining whether the photo needs to be turned on, if necessary, executing step S103; if not, executing step S104;

Among them, to determine whether the photo needs to be turned on, including:

Among them, the sensor of the terminal can be used to detect the intensity of the ambient light.

S103: Control the LCD display and the LCD screen backlight module to emit light of the required intensity of the flash.

The method further includes:

For example, in a very bright outdoor environment during the daytime, the need for a less powerful flash light intensity or the need to turn on the flash can also meet the user's need for front camera use. In this case, the front display camera automatically uses the LCD display. And the LCD screen backlight module emits a weaker flash light intensity or does not turn on the flash. For example, when the front camera is used with a near focal length, a weaker flash light intensity is required. At this time, the LCD display and the LCD screen backlight module are controlled to emit a weaker flash light intensity; and when the far focus is used, a strong need is required. The flash light intensity, at this time, controls the LCD display and the LCD screen backlight module to emit a strong flash light intensity.

Step S103 specifically includes: adjusting a light transmittance and a light collecting direction of the LCD display panel, and/or adjusting a light intensity of the backlight of the LCD screen to obtain light of a required light intensity of the flash.

Wherein, the light transmittance refers to how much the backlight is allowed to pass through the LCD display screen, for example, controlling the LCD display screen to display pure white, and transmitting all the light emitted by the LCD screen backlight module to the front of the LCD screen, the light transmittance is 100. %, displayed in black, makes the light emitted by the LCD screen backlight module completely unable to transmit to the front of the LCD screen, and the light transmittance is 0%.

The concentrating direction refers to the change of the relative position and angle of the camera to the face or other objects, and the beam can be adjusted to just face the human face or other objects, so that the LCD screen backlight module is The emitted light is illuminated as much as possible on the face or other objects, that is, the same intensity of light, the direction of the spotlight is adjusted differently, and the brightness of the face or other objects taken is different. The intensity of the illumination of the LCD screen backlight module is also different in brightness and brightness, and can also be adjusted.

The user can manually set a suitable flash light intensity according to daily usage habits, such as the personal self-timer distance and angle. The flash light intensity and the condensing direction can meet the image quality requirements of the front camera, and it is not too bright to give the user's eyes an uncomfortable feeling. The user can also turn on the light intensity automatically at any time. When the user uses the front camera again, the phone will be based on the ring. The ambient light sensor or the like determines the user's use environment at this time to automatically adjust the flash light intensity.

For example, users often take selfies at home, so manually set a fixed flash light intensity and focus direction according to their habits and preferences to achieve a better shooting effect and user experience. When taking a self-timer, follow the set flash. Wait for a series of actions. For example, if you go out to play with friends on holidays, take a photo with friends and take a photo. At this time, you can automatically adjust the flash light intensity and the direction of the spotlight. The shooting distance and shooting environment have changed greatly. The phone will be based on the ambient light sensor and front. The camera focal length and other environmental information are obtained, and the flash light intensity and the light collecting direction are automatically adjusted.

Wherein, the required light intensity of the flash is the same as the light intensity of the flash of the rear camera in the related art, and the light intensity can satisfy the user's photographing demand, and the light intensity is too strong to damage the human eye.

S104: Take a picture with a front camera in a conventional manner.

In addition, the method further includes: after the photographing ends, controlling the LCD display screen and the LCD screen backlight module to return to the state before the photographing.

The embodiment of the invention further discloses a computer program, comprising program instructions, when the program instruction is executed by the terminal, so that the terminal can perform any of the above methods for taking pictures by using a front camera of the terminal.

The embodiment of the invention also discloses a carrier carrying the above computer program.

It can be seen from the above embodiment that, compared with the related art, the method and terminal for taking pictures by using the front camera of the terminal provided by the foregoing embodiment, when using the front camera to take pictures, control the LCD display and its backlight intensity, using the LCD The screen implements the function of the front flash to meet the front flash requirements of the mobile terminal. In this way, the flash function can be realized without additional front flash, which is economical and can better enhance the user experience.

One of ordinary skill in the art will appreciate that all or a portion of the steps described above can be accomplished by a program that instructs the associated hardware, such as a read-only memory, a magnetic or optical disk, and the like. Alternatively, all or part of the steps of the above embodiments may also be implemented using one or more integrated circuits. Correspondingly, each module/unit in the above embodiment may be adopted. The form of hardware implementation can also be implemented in the form of software function modules. The invention is not limited to any specific form of combination of hardware and software.

The above is only the preferred embodiment of the present invention and is not intended to limit the scope of the present invention. Various other embodiments and modifications can be made in accordance with the present invention without departing from the spirit and scope of the invention. All modifications, equivalent substitutions, improvements, etc., made within the spirit and scope of the invention are intended to be included within the scope of the invention.

Industrial applicability

The method and terminal for photographing by using the front camera of the terminal provided by the embodiment of the present invention can realize the function of the front flash by using the LCD screen when the front camera is used for photographing, and the function of the front flash is controlled by the LCD screen, thereby satisfying the mobile terminal. Front flash needs. In this way, the flash function can be realized without additional front flash, which is economical and can better enhance the user experience. Therefore, the present invention has strong industrial applicability.

Claims

A method for photographing by using a front camera of a terminal, comprising:

The terminal detects the photographing action of the front camera;

The terminal determines whether the photo needs to be turned on, and if necessary, controls the liquid crystal display LCD display and the LCD screen backlight module to emit light of the required light intensity of the flash.
The method for photographing by using a front camera of a terminal according to claim 1, wherein the step of determining whether the photographing needs to be turned on comprises:

The intensity of the ambient light is detected. When the intensity of the ambient light is less than a preset threshold, the photo needs to be turned on, otherwise the flash does not need to be turned on.
The method for photographing by using a front camera of a terminal according to claim 1, wherein the step of controlling the LCD display and the backlight of the LCD screen to emit light of a light intensity required by the flashlight comprises:

Adjusting the light transmittance and the light collecting direction of the LCD display panel, and/or adjusting the intensity of the backlight of the LCD screen backlight module to obtain the light intensity of the flash light.
The method for photographing by using a front camera of a terminal according to claim 1, the method further comprising:

The required light intensity of the flash is set in advance, or the required light intensity of the flash is dynamically determined according to the detected light intensity of the ambient light and/or the focal length of the front camera.
The method for photographing by using a front camera of a terminal according to claim 1, the method further comprising:

After the photographing is finished, the LCD display screen and the LCD screen backlight module are controlled to return to the state before the photographing.
A terminal includes a detection module decision module and a control module, wherein:

The detecting module is configured to: detect a camera action of the front camera;

The determining module is configured to: when detecting the photographing action of the front camera, determine whether the photographing needs to be turned on, and send the judgment result to the control module;

The control module is configured to: if the result of the determination is that the flash needs to be turned on, control the LCD display and the LCD screen backlight module to emit light of the required light intensity of the flash.
The terminal of claim 6, wherein the decision module is configured to determine whether the photographing needs to be turned on by flashing as follows:

The intensity of the ambient light is detected. When the intensity of the ambient light is less than a preset threshold, the photo needs to be turned on, otherwise the flash does not need to be turned on.
The terminal of claim 6, wherein the control module is configured to control the LCD display and the LCD screen backlight module to emit light of a desired intensity of the flash as follows:

Adjusting the light transmittance and the light collecting direction of the LCD display panel, and/or adjusting the intensity of the backlight of the LCD screen backlight module to obtain the light intensity of the flash light.
The terminal of claim 6, further comprising a configuration module connected to the control module, wherein:

The configuration module is configured to: preset a required light intensity of the flash, or dynamically determine a required light intensity of the flash according to the detected light intensity of the ambient light and/or the focal length of the front camera.
The terminal of claim 6 wherein:

The control module is further configured to: after the photographing ends, control the LCD display screen and the LCD screen backlight module to return to the state before the photographing.
A computer program comprising program instructions that, when executed by a terminal, cause the terminal to perform the method of photographing with a front camera of a terminal according to any one of claims 1-5.
A carrier carrying the computer program of claim 11.