WO2013071737A1

WO2013071737A1 - Terminal with photographic function and camera zooming method thereof

Info

Publication number: WO2013071737A1
Application number: PCT/CN2012/075051
Authority: WO
Inventors: 曹恒; 林兵; 郑欣宇
Original assignee: 中兴通讯股份有限公司
Priority date: 2011-11-16
Filing date: 2012-05-03
Publication date: 2013-05-23
Also published as: CN102420940B; CN102420940A

Abstract

Provided are a terminal with a photographic function and camera zooming method thereof, the method comprising: When a user utilizes the camera lens of a terminal for photographing and activates a zoom mode, the camera lens is caused to move in or out; the terminal captures the forward or backward movement information, and converts the movement information into a zooming signal, so that an image inputted by the terminal camera is digitally or optically zoomed. In the switchable zooming mode, the terminal of the present invention can quickly and smoothly switch to digital zooming in the process of still or moving photography. The photographing process generally adopted by existing terminals is to manually set fixed digital zooming before photographing. However, the terminal of the present invention changes the process and improves user experience in the photographing process using the terminal.

Description

Terminal with camera function and camera zoom method thereof

The present invention relates to the field of communications technologies, and more particularly to a camera having a camera function and a camera zoom method thereof. Background technique

Currently, end products on the market, such as smart phones and tablet computers, can take pictures and videos with their own cameras, and most of them use digital zoom to zoom the picture to be taken. However, when performing digital zoom operation on the terminal camera, you need to first enter the shooting settings menu to set the magnification, such as IX, 1.5X, 2X, 3X, etc., and then view the screen to take photos, video, such digital zoom operation. The process affects the smoothness of the user's shooting process and also affects the user experience when the user uses the terminal for shooting.

At present, more and more terminals are equipped with three-axis accelerometers, which will help improve the digital zoom operation of the camera, making this process faster and more convenient, allowing users to have a smoother shooting experience.

The three-axis acceleration sensor is an electronic device capable of measuring the speed and displacement during the movement of an object, and is capable of detecting actions and states such as landing, tilting, moving, placing, shaking, and rocking of the device. At present, the application of the acceleration sensor in the terminal mainly involves: control of the game and the player, change of the ring pattern, protection of the disk, anti-theft of the device, and the like. Summary of the invention

In view of the above, an object of the present invention is to provide a camera with a camera function and a camera zoom method thereof, which enable the user to forward the user to the terminal when using the terminal for photographing and photographing. The backward motion is automatically converted into a digital zoom adjustment of the camera, that is, the moving zoom mode, which simplifies the current common process of setting the zoom magnification before shooting.

To achieve the above object, the present invention provides a camera having a camera function, and the terminal includes a motion sensing module and an application processing module;

The motion sensing module is configured to: when the user uses the camera of the terminal to shoot and activate the moving zoom mode, and forward or backward to move the terminal, capture forward or backward movement information of the terminal, and transmit the mobile information to Application processing module;

The application processing module is configured to receive movement information from the motion sensing module, and convert the motion information into a zoom signal, so that the image input by the terminal camera is digitally zoomed or optically zoomed.

Further, the terminal further includes: an image acquisition module, an image processing module, and an image storage module;

The image acquisition module is configured to convert the ingested image information into a digital image signal, and after the signal processing, transmit the digital image signal to the image processing module;

The image processing module is configured to receive a control signal from the application processing module, perform digital zoom processing on the digital image signal from the image acquisition module, and output the processed digital image signal to the image storage module;

The image storage module is configured to store the digital image signal transmitted by the image processing module for image display of the terminal screen or for transmitting the digital image signal to be stored to the memory of the terminal, and receiving the image processing module from the application control signal;

Correspondingly, the application processing module is further configured to send a control signal to the image processing module and/or the image storage module.

Further, the application processing module is configured to use the movement information as a basis for enlarging or reducing the digital image signal from the image acquisition module, and send a control instruction for amplifying or reducing the digital image signal. To the image processing module; Correspondingly, the image processing module is configured to receive a control instruction sent by the application processing module to perform amplification or reduction processing on the digital image signal.

Further, after the moving zoom mode is activated, the application processing module is configured to control the motion sensing module to enter the measurement mode by controlling the power timing of the motion sensing module; determine whether the motion sensing module has entered the measurement mode, and if the self and the motion are detected If there is an error in the communication of the sensor module, stop moving the zoom mode;

It is also used when the motion sensing module powers up after the power supply timing determines that the motion sensing module has entered the measurement mode and the communication data is normal, and the other terminal enters the moving zoom mode.

Further, after entering the moving zoom mode, the application processing module is configured to communicate with the motion sensing module through a serial peripheral interface, and read the current X axis, the Y axis, and the Z measured by the motion sensing module. Offset of the axis;

The application processing module is further configured to compare and calculate the read multiple sets of offset signals after continuously reading the offset signals of the multiple sets of motion sensing modules, thereby obtaining the forward or backward direction of the terminal. Displacement change amount;

The application processing module is further configured to: according to the calculated displacement change of the forward or backward direction of the terminal, combined with the priority of the optical zoom and the digital zoom in the initial setting of the moving zoom mode, and the forward or backward direction The ratio of the displacement change to the digital zoom range of the terminal is obtained by using the optical zoom or the digital zoom of the current terminal camera, and the zoom magnification is obtained.

The invention also provides a camera zoom method, the method comprising:

When the user uses the camera of the terminal to shoot and activate the moving zoom mode, the terminal is moved forward or backward; the terminal captures its forward or backward movement information, and converts the movement information into a zoom signal, thereby making the terminal Digital zoom or optical zoom occurs in the image input by the camera.

Further, after the moving zoom mode is activated, the application processing module in the terminal controls the motion sensing module to enter the measurement mode by controlling the power timing of the motion sensing module; Whether the break motion sensing module has entered the measurement mode, and if the application processing module detects that there is an error in communication between the motion sensing module and the motion sensing module, stopping the moving zoom mode;

If the motion sensing module powers up after the power supply timing, the application processing module determines that the motion sensing module has entered the measurement mode and the communication data is normal, then enters the moving zoom mode.

Further, after entering the moving zoom mode, the application processing module in the terminal communicates with the terminal motion sensing module through the serial peripheral interface, and reads the current X-axis, Y-axis, and Z-axis deviation of the terminal measured by the motion sensing module. Transfer amount

After the application processing module continuously reads the offset signals of the multiple sets of motion sensing modules, the plurality of sets of offset signals that are read are compared and calculated, thereby obtaining the displacement variation of the forward or backward direction of the terminal.

Further, the application processing module according to the calculated displacement change of the forward or backward direction of the terminal, combined with the priority of the optical zoom and the digital zoom, and the change of the forward or backward displacement in the initial setting of the moving zoom mode by the user The proportional relationship between the amount and the digital zoom range of the terminal, and the framing mode of the current terminal camera is obtained by optical zoom or digital zoom, and the zoom magnification is obtained.

Further, the application processing module uses the mobile information captured by the terminal as a basis for amplifying or reducing the digital image signal from the image capturing module, and sends a control instruction for amplifying or reducing the digital image signal to The image processing module performs zoom processing on the image by the image processing module.

In summary, the use of the present invention has the following beneficial effects:

The moving zoom mode of the terminal in the photographing or photographing of the invention can quickly and smoothly complete the switching of the digital zoom multiple, thereby changing the process of manually setting the fixed digital zoom magnification which is commonly used by the current terminal, and then performing the shooting process. , enhance the user experience when using the terminal for shooting. BRIEF DESCRIPTION OF DRAWINGS FIG. 1 is a flowchart of a method for photographing a moving zoom mode of a terminal according to an embodiment of the present invention; FIG. 2 is a schematic diagram of the composition of a terminal having an imaging function according to an embodiment of the present invention. detailed description

The invention provides a method for zooming a terminal and a camera thereof, so that when the user performs photographing and photographing using the terminal, the forward and backward motions of the user can be automatically converted into digital zoom adjustment changes of the camera, that is, the moving zoom mode. , which simplifies the process of shooting the zoom magnification and then shooting.

The terminal with camera function provided by the invention comprises the following functional modules:

The motion sensing module can recognize the forward and backward motions of the user when using the terminal for shooting, and can convert the changes of these actions into digital signals for transmission to the application processing module; the image acquisition module can convert the ingested image information After being digital signal signals, and after appropriate signal processing, transmitting the digital image signals to the image processing module;

The image processing module receives a control signal from the application processing module, performs digital zoom processing on the digital image signal from the image acquisition module, and outputs the processed digital image signal to the image storage module;

The image storage module stores the digital image signal transmitted by the image processing module for image display of the terminal screen or for transmitting the digital image signal to be stored to the memory of the terminal, and receiving a control signal from the application processing module;

a mode start/stop module for starting or stopping the moving zoom mode, transmitting a control signal to the application processing module;

The application processing module can receive the digital signals from the motion sensing module and the mode start/stop module, and can extract the forward and backward motion information of the user from the motion sensing module in the moving zoom mode, and the action information is As a processing basis for enlarging or reducing the image digital signal from the image acquisition module, a control command for amplifying or reducing the image digital signal is sent to the image processing module.

The moving zoom method of the terminal of the present invention when taking a picture or taking a picture includes the following steps: Step 1: The user initially sets the moving zoom mode when the terminal is shooting. Step 2: The user starts the moving zoom mode when shooting with the camera of the terminal; Step 3: The user moves forward or backward to the terminal, and the terminal will have The captured moving information is converted into a zoom signal, so that the camera input image of the terminal is digitally zoomed or optically zoomed, and the zoomed image is displayed on the screen of the terminal;

Step 4: The user stores the image presented on the terminal screen by clicking the "Shooting" button at a satisfactory zoom factor.

During the movement, the user can stop moving the zoom mode at any time. The zoom factor at this time will stay at the zoom factor before the stop or the default zoom multiplier according to the user's initial setting of the moving zoom mode.

During the movement, when the terminal camera has an optical zoom function, the forward or backward movement of the terminal also causes a change in the optical zoom factor, but the order of the optical zoom and the digital zoom, and the forward or backward movement and the zoom factor The relationship will be determined by the user's initial settings for the moving zoom mode.

The implementation of the technical solution will be further described in detail with reference to the accompanying drawings:

FIG. 1 is a flowchart of a method for photographing a moving zoom mode of a terminal according to an embodiment of the present invention, including the following steps:

S101: Enter the camera/camera function;

The user takes out the terminal and prepares to take pictures of the scenery outside the window. The terminal is equipped with an 8 megapixel rear camera, digital zoom and optical zoom and a three-axis acceleration sensor. The user finds the icon of the camera/camera function from the operating system interface of the terminal, and after clicking, the terminal enters the interface of the camera/camera function. The image captured by the camera can be seen in real time from the terminal screen.

S102: Start the moving zoom mode;

In order to quickly zoom in or zoom out the landscape image displayed on the terminal screen, activate the moving zoom mode of the terminal, that is, click the moving zoom mode icon on the camera/camera interface. S103: Initialize the motion sensing module.

After the terminal starts to shoot the moving zoom mode, the application processing module that plays the role of the control core controls the motion sensing module to enter the measurement mode, and through the Serial Peripheral Interface (SPI) and the action. The sensing module communicates.

S104: determining whether the activation of the motion sensing module is successful, if successful, proceeds to step S105, if it fails, then proceeds to step S112;

The application processing module in the terminal determines whether the motion sensing module has entered the measurement mode, if successful, proceeds to step S105, and if it fails, proceeds to step S112;

S105: prompting the user to enter the moving zoom mode;

If the motion sensing module is powered on at the appropriate power supply timing, and the application processing module determines that the motion sensing module has entered the measurement mode and the communication data is normal, the application processing module will issue a prompt, and the terminal screen will display: The shooting has entered the moving zoom mode. And prompt on the terminal screen: The terminal has entered the moving zoom mode.

S106: The application processing module receives and processes the signal sent by the motion sensing module.

After entering the moving zoom mode, the application processing module communicates with the motion sensing module through the SPI, and reads the offset of the current X-axis, Y-axis, and Z-axis measured by the motion sensing module.

S107: The application processing module calculates a displacement difference of the forward or backward movement of the terminal;

After the application processing module continuously reads the offset signals of several groups of motion sensing modules, the offset signals of the groups are compared and calculated to obtain the displacement variation of the terminal in the forward or backward direction.

S108: the application processing module sends a digital zoom instruction to the image processing module according to the displacement difference; the application processing module uses the movement information captured by the terminal as a basis for enlarging or reducing the digital image signal from the image acquisition module, and the digital A control command for enlarging or reducing the image signal is sent to the image processing module.

S109: The image processing module performs zoom processing on the image signal output by the image capturing module; The application processing module according to the calculated displacement of the forward or backward displacement of the terminal, and the initial setting of the user's movement zoom mode, the priority of the optical zoom and the digital zoom, the forward or backward displacement change amount and the terminal digital The proportional relationship of the zoom range is obtained by using the optical zoom or digital zoom when the current camera is framing, and the zoom factor is obtained. For example: The current camera zoom magnification of the terminal camera is IX, and the application processing module determines that the terminal has moved forward, and calculates that the displacement of the forward movement is 0.52 cm. According to the initial setting of the digital zoom mode: Currently only digital zoom is used, and the forward movement distance of 0.5cm represents a doubling of the digital zoom factor. Therefore, the application processing module will adjust the digital zoom factor of the terminal camera from IX to 2X.

S110: The image processing module outputs an image signal to the image storage module.

The image processing module receives the digital image signal collected by the image acquisition module in real time through the data bus, and uses the image algorithm of the digital zoom factor IX to perform data processing, and transmits the processed digital image signal to the image storage. The module is used for on-screen display or memory storage of digital image signals. When the image processing module receives an instruction from the application processing module to adjust the digital zoom magnification from IX to 2X, the digital image signal from the image acquisition module is immediately processed by an image algorithm with a digital zoom factor of 2X, and The processed digital image signal is transmitted to the image storage module.

S111: The image storage module performs on-screen display or storage processing on the image signal according to an instruction of the application processing module;

At this time, the landscape image displayed on the terminal screen can be enlarged, that is, the digital zoom factor is changed from IX to 2X. Thereby, the effect of changing the digital zoom factor of the terminal camera by the forward or backward displacement of the terminal is realized.

S112: alerting the user and proceeding to step S113;

If the application processing module detects an error in communication with the motion sensing module, the application processing module issues an error prompt and displays the error prompt on the terminal screen to indicate that the moving zoom mode cannot be entered, that is, the moving zoom mode is stopped. S113 : Stop moving the zoom mode and prompt the user.

If the user wants to stop moving the zoom mode at this time, just click the moving zoom mode icon on the terminal screen, the terminal screen prompts the moving zoom mode to stop, and the digital zoom factor of the camera will be based on the user's previous initial setting of the moving zoom mode. And fixed it.

Referring to FIG. 1 , it is a schematic diagram of a terminal having a camera function according to an embodiment of the present invention, which includes the following functional modules:

The motion sensing module is configured to: when the user uses the camera of the terminal to shoot and activate the moving zoom mode, and forwards or backwards the mobile terminal, captures forward or backward movement information of the terminal, and transmits the mobile information to the application processing. a module; capable of sensing the forward or backward displacement and motion of the terminal, and outputting the positions of the X-axis, the Y-axis, and the Z-axis of the terminal;

The image acquisition module has a video input device with a photosensitive imaging device, which can convert the ingested image information into a digital image signal, and transmit the collected digital image signal to the image processing module through the data transmission interface, and some image acquisition modules also With optical zoom device;

The image processing module can enlarge or reduce the input digital image information according to an instruction of the application processing module to form a digital zoom effect, and can transmit the processed digital number through the data transmission interface, such as the image storage module. Image signal

An image storage module capable of storing and transferring digital image signals, and enabling a screen display process of the terminal to call the stored digital image signals according to an instruction of the application processing module, or transmitting the digital image signals to an internal or external memory of the terminal section;

The mode start/stop module is capable of sensing the moving zoom mode when the end user turns the shooting on or off, and outputs a mode status prompt;

An application processing module, configured to receive movement information from the motion sensing module, convert the motion information into a zoom signal, thereby causing digital zoom or optical zoom of the image input by the terminal camera; and being a control center of the moving zoom mode, capable of receiving and Process the data of the motion sensing module, as well as the signal of the mode start/stop module, and implement unified control of other functional modules. The relationship between the above functional modules is as shown in FIG. 1. The application processing module controls the operation and actions of the motion sensing module, the image processing module, and the image storage module, and receives and processes the motion sensing module and the mode startup/stop module. The image processing module receives and processes the digital image signal from the image acquisition module, and the image processing module can simultaneously transmit the processed digital image signal to the image storage module.

The image acquisition module can also be provided with an optical zoom device and the zoom factor of the optical zoom device can be controlled by the application processing module.

The application processing module also controls the optical zoom factor for an image acquisition module with an optical zoom.

When the user uses the moving zoom mode of the terminal according to the present invention to take a picture or a camera, the digital zoom multiple can be switched quickly and smoothly, thereby changing the digital zoom factor that is commonly used in the current terminal to manually set a fixed digital zoom multiple. The process of improving the user experience when using the terminal for shooting.

Of course, the present invention may be embodied in various other modifications and changes without departing from the spirit and scope of the invention. Any modifications, equivalent substitutions, and improvements made within the spirit and principles are intended to be included within the scope of the present invention.

Claims

Claim

A terminal having a camera function, wherein the terminal comprises a motion sensing module and an application processing module;

The application processing module is configured to receive movement information from the motion sensing module, convert the motion information into a zoom signal, and cause a digital zoom or an optical zoom of the image input by the terminal camera.

2. The terminal according to claim 1, wherein the terminal further comprises: an image acquisition module, an image processing module, and an image storage module;

The terminal according to claim 2, wherein the application processing module is configured to use the movement information as a basis for enlarging or reducing a digital image signal from the image acquisition module, and a control instruction for performing amplification or reduction processing on the digital image signal is sent to the image processing module; Correspondingly, the image processing module is configured to receive a control instruction sent by the application processing module to perform amplification or reduction processing on the digital image signal.

The terminal according to claim 1, wherein, after the moving zoom mode is activated, the application processing module is configured to control the motion sensing module to enter the measurement mode by controlling the power timing of the motion sensing module; Whether it has entered the measurement mode, if it detects that there is an error in communication with the motion sensing module, it stops moving the zoom mode;

The application processing module is further configured to: after the power sensing module is powered on, determine that the motion sensing module has entered the measurement mode and the communication data is normal, and the terminal enters the moving zoom mode.

The terminal according to claim 1, wherein after the moving zoom mode is entered, the application processing module is configured to communicate with the motion sensing module through a serial peripheral interface, and read the motion sensing module. Measuring the offset of the current X-axis, the Y-axis, and the Z-axis of the terminal; the application processing module is further configured to continuously read the offset signals of the multiple sets of motion sensing modules, and then read the multiple sets of partial offsets The shift signal is compared and calculated to obtain the displacement change of the terminal in the forward or backward direction;

6. A camera zoom method, the method comprising:

When the user uses the camera of the terminal to shoot and activate the moving zoom mode, the terminal is moved forward or backward; the terminal captures its forward or backward movement information, and converts the movement information into a zoom signal, so that the terminal camera The input image is digitally zoomed or optically zoomed.

The method of claim 6, wherein after the moving zoom mode is activated, the method further comprises: the application processing module in the terminal controls the motion sensing module to enter the measurement mode by controlling the power timing of the motion sensing module; The processing module determines whether the motion sensing module has entered In the measurement mode, if the application processing module detects that there is an error in communication with the motion sensing module, the zoom mode is stopped;

The method according to claim 6 or 7, wherein after the moving zoom mode is entered, the method further comprises: the application processing module in the terminal communicates with the terminal motion sensing module through the serial peripheral interface, and reads Taking the motion sensor module to measure the offset of the current X-axis, Y-axis and Z-axis of the terminal;

After the application processing module continuously reads the offset signals of the multiple sets of motion sensing modules, the plurality of sets of offset signals read and compared are compared and calculated, and the displacement variation of the forward or backward direction of the terminal is obtained.

9. The method according to claim 8, wherein the method further comprises: applying, by the processing module, the optical zoom of the initial setting of the moving zoom mode according to the calculated displacement of the forward or backward displacement of the terminal. The priority relationship with the digital zoom, and the proportional relationship between the forward or backward displacement change and the digital zoom range of the terminal, the optical zoom or digital zoom of the current terminal camera is obtained, and the zoom magnification is obtained.

The method according to claim 6 or 7, wherein the terminal converts the movement information into a zoom signal to cause the image to be zoomed, wherein: the application processing module uses the movement information captured by the terminal as the pair of images. The digital image signal of the acquisition module is subjected to amplification or reduction processing, and a control instruction for amplifying or reducing the digital image signal is sent to the image processing module, and the image is subjected to zoom processing by the image processing module.