TW201518839A - Portable electronic device and method of light compensating for image extraction - Google Patents

Abstract

The invention provides a portable electronic device, including a camera module, a processing unit and a backlight module. The camera module is arranged to extract a plurality of images and detect the illumination of the environment, and outputs a sensing signal. The processing unit is arranged to receive the photoing signal and the sensing signal, and outputs a driving signal according to the photoing signal and the sensing signal. The backlight module is arranged to receive the driving signal to enable the projection of white light. Wherein, the camera module and the backlight module are faced to a predetermined orientation.

Description

Portable electronic device and camera fill light method

The present invention relates to a portable electronic device and an image-filling method, and more particularly to a method for using a backlight module for driving a display unit to achieve fill light.

Since the portable electronic device is easy to carry and develops rapidly, the user can use the smart device with the video lens to perform the shooting at any time, and in addition to the general camera, the smart type is used compared with the general consumer camera. It is more convenient to shoot the lens before the device, but for most smart devices, most of the lenses are lower in the lens before taking the film, and the cost of the production is usually not set, so the light is not enough. When a local photograph is taken, it usually produces a situation in which the brightness of the photograph is insufficient. Therefore, how to obtain a better self-timer image in a dim scene is a problem to be solved at present.

To solve the above problem, an embodiment of the present invention provides a portable electronic device, including a camera module, a processing unit, and a backlight module. The camera module is configured to capture a plurality of images and detect ambient brightness, and output a sensing signal. The processing unit is configured to receive the camera signal and the sensing signal, and output the driving signal according to the camera signal and the sensing signal. The backlight module is configured to receive a driving signal. And can cast a white light. The camera module and the backlight module are simultaneously oriented in a predetermined direction.

Another embodiment of the present invention provides a camera light-filling method, which is applicable to a portable electronic device, including a camera module that captures a plurality of images according to a camera signal; and outputs a corresponding sensing signal according to the ambient brightness; and according to the camera signal and the sensing The signal outputs a driving signal so that the backlight module projects a white light. The camera module and the backlight module are simultaneously oriented in a predetermined direction.

100‧‧‧Portable electronic devices

110‧‧‧ camera module

120‧‧‧Processing unit

130‧‧‧Backlight module

140‧‧‧Display unit

S201, S202, S203, S204, S205, S206‧‧‧ step flow

FIG. 1 is a schematic diagram showing a portable electronic device according to an embodiment of the invention.

2 is a flow chart showing an image filling method according to an embodiment of the invention.

Other ranges for the systems and methods of the present invention will be apparent from the detailed description provided hereinafter. It is to be understood that the following detailed description, as well as specific embodiments, are intended to be illustrative of the embodiments of the invention, and are not intended to limit the scope of the invention.

FIG. 1 is a schematic diagram showing a portable electronic device according to an embodiment of the invention. As shown in FIG. 1 , the portable electronic device 100 includes an image capturing device 110 , a processing unit 120 , and a backlight module 130 . The portable electronic device 100 can be a smart phone, a tablet, or the like. The camera module 110 is used to capture a plurality of images. The portable electronic device 100 can further include a call. Modules such as modules, memory units, and touch units are not described here to simplify the description because the technical features of the above modules are similar to those of the prior art. The camera module can include components such as a lens, an aperture, and a sensor (eg, CCD, CMOS, etc.). In addition, the camera module 110 is further configured to detect environmental parameters, such as brightness or color temperature of the environment, and output corresponding sensing signals. However, the detection results of different environmental parameters will affect the camera module 110 to enable different camera modes. When the user is shooting in a dim environment, the electronic device will automatically adjust the sensitivity (ISO value) to the night mode due to insufficient light, but the image obtained under this condition will appear granular or The phenomenon of grainy noise causes low image quality; or the electronic device will enable a fill light to obtain a better brightness image. However, when the user takes a picture with the front lens, since most of the electronic devices do not have a front fill light, the user must perform the fill light in other ways.

According to an embodiment of the invention, when the environmental parameters detected by the camera module 110 are not conducive to the user obtaining a better image, a sensing signal is output to the processing unit 120. Then, when the user triggers the photographing mechanism, a photographing signal is transmitted to the processing unit 120, and the processing unit 120 outputs a driving signal according to the photographing signal and the sensing signal to enable the backlight module 130 to perform the filling operation. The backlight module 130 is composed of components such as light, a reflection sheet, a light guide plate, a cymbal sheet, and a diffusion sheet.

After receiving the driving signal, the backlight module 130 rotates the display unit 140 to fill the light to fill the light. It is worth noting that the user can set the color temperature according to personal preference to project different colors of light; or the processing unit 120 automatically selects the phase according to the ambient color temperature detected by the camera module 110. The light should be. In addition, the user can set the intensity of the light and enable the light to be projected for a given time to achieve better image quality. It should be noted that the camera module 110 and the backlight module 130 are oriented in a predetermined direction, for example, in the direction of the user when performing the self-timer action. The display unit 140 is configured to display the acquired image after the backlight module 130 projects the light for a predetermined time.

2 is a flow chart showing an image filling method according to an embodiment of the invention. First, the user will enable the camera function and output a camera signal (step S201). In step S202, the camera module 110 detects the parameters of the environment and outputs corresponding sensing signals to the processing unit 120. For example, the camera module 110 detects the brightness and color temperature of the environment, etc., to provide the processing unit 120 to determine whether the ambient light is sufficient (step S203). The detection result of different environmental parameters will affect the camera mode 110 to enable different camera modes. For example, when a user shoots in a dim environment, due to lack of light, the electronic device automatically adjusts the sensitivity to switch to night mode or enables a fill light to obtain a better brightness image.

If the environmental parameter detected by the camera module 110 can maintain a certain image quality, the process proceeds to step S205 to perform an image capture operation. However, when the environmental parameters detected by the camera module 110 are not conducive to the user obtaining a better image, a sensing signal is output to the processing unit 120. The processing unit 120 outputs a driving signal according to the camera signal and the sensing signal to enable the backlight module to project light to perform light filling (step S204). The user can set the color temperature according to personal preference to project light of different colors; or the processing unit 120 automatically selects the corresponding light according to the ambient color temperature detected by the camera module 110. In addition, the user can set the intensity of the light and enable the projected light. The line is set for a given time to achieve better image quality. It should be noted that the camera module 110 and the backlight module 130 are oriented in a predetermined direction. For example, when the self-photographing operation is performed, the camera module 110 is directed toward the user together with the backlight module 130.

Proceeding to step S205, the processing unit enables the camera module 110 to capture the plurality of images. Finally, after the backlight module 130 is enabled to project the light for a predetermined time and complete the image capturing operation, the display unit 140 displays the captured image (step S206).

In summary, the portable electronic device and the image-filling method according to an embodiment of the present invention can drive a liquid crystal display if the user wants to take a picture with the front lens but does not have a fill light. The backlight module causes it to project light, replacing the fill light to perform a fill motion. In this way, the user can perform the adjustment and control of the fill light in the light-deficient environment according to the method proposed by the present invention to obtain a better quality image.

The above-described embodiments are described in sufficient detail to enable those of ordinary skill in the art to practice the system and method disclosed herein. The scope of protection of the present invention is defined by the scope of the appended claims.

100‧‧‧Portable electronic devices

110‧‧‧ camera module

120‧‧‧Processing unit

130‧‧‧Backlight module

140‧‧‧Display unit

Claims (10)

A portable electronic device includes: a camera module for capturing a plurality of images according to a camera signal and detecting an ambient brightness, and outputting a sensing signal; and a processing unit for receiving the camera signal and the sense a driving signal, and outputting a driving signal according to the photo signal and the sensing signal; and a backlight module for receiving the driving signal and capable of projecting a white light, wherein the camera module and the backlight module are At the same time, it is oriented in an intended direction. The portable electronic device of claim 1, wherein the camera module outputs the sensing signal according to the ambient brightness and the ambient color temperature. The portable electronic device of claim 2, wherein the backlight module further projects light corresponding to the ambient color temperature according to the photo signal and the sensing signal. The portable electronic device of claim 3, wherein the backlight module further adjusts the brightness of the white light according to the ambient brightness. The portable electronic device of claim 1, wherein the backlight module projects the white light for a predetermined time, and then enables a display unit to display the image. A camera light-filling method is applicable to a portable electronic device, comprising: providing a camera module, capturing a plurality of images according to a camera signal; and outputting a corresponding one of the sensing signals according to the ambient brightness; And outputting a driving signal according to the photo signal and the sensing signal to enable a backlight module to project a white light, wherein the camera module and the backlight module are simultaneously oriented toward a predetermined direction. The method of claim 6, wherein the sensing signal is further output according to the ambient brightness and the ambient color temperature. The method of claim 7, wherein the light corresponding to the ambient color temperature is projected according to the photographing signal and the sensing signal. The method of claim 8, wherein the brightness of the white light is further adjusted according to the ambient brightness. The method of claim 6, wherein the backlight module projects the white light for a predetermined time, and then enables a display unit to display the image.