KR101622680B1 - Mobile terminal and method for handling image thereof - Google Patents
Mobile terminal and method for handling image thereof Download PDFInfo
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- KR101622680B1 KR101622680B1 KR1020090115344A KR20090115344A KR101622680B1 KR 101622680 B1 KR101622680 B1 KR 101622680B1 KR 1020090115344 A KR1020090115344 A KR 1020090115344A KR 20090115344 A KR20090115344 A KR 20090115344A KR 101622680 B1 KR101622680 B1 KR 101622680B1
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Abstract
The present invention relates to a mobile terminal and an image processing method thereof, and a mobile terminal of the present invention requests a view picture according to a control command when a control command for loading and displaying a predetermined image file is inputted, The image processing unit generates and displays a first view picture from a thumbnail of the image file if the requested view picture is a first view picture and decodes the image data of the image file if the requested view picture is a second view picture, Generates and displays a second view picture from the decoded image data, and if the requested view picture is not the first and second view pictures, the requested view picture is generated from the image data stored in the buffer Display.
View mobile devices, images, and albums
Description
BACKGROUND OF THE
A terminal such as a personal computer, a notebook computer, a mobile phone, or the like can be configured to perform various functions. Examples of such various functions include a data and voice communication function, a function of photographing a video or a moving image through a camera, a voice storage function, a music file playback function through a speaker system, and an image or video display function. Some terminals include additional functions to execute games, and some other terminals are also implemented as multimedia devices. Moreover, recent terminals can receive a broadcast or multicast signal to view a video or television program.
In general, a terminal can be divided into a mobile terminal and a stationary terminal according to whether it can be moved or not, and the mobile terminal can be divided into a handheld terminal (or a handheld terminal) And a vehicle mount terminal.
Efforts are continuing to support and enhance the functions of terminals. The foregoing efforts include not only changes and improvements in structural components that form the terminal, but also improvements in software or hardware.
As a terminal with a camera becomes popular, it is necessary to process a digital image quickly and efficiently in a mobile terminal having a limited memory space and processing power. In particular, digital image processing techniques are important for quickly displaying high resolution images on a display having a relatively low resolution. Therefore, there have been a lot of studies on image processing technology for quickly processing high resolution images.
The present invention provides an image data access structure and a thumbnail for storing image data acquired from a camera or other terminal and storing the image data together.
The present invention also provides a mobile terminal for decoding image data, storing the image data in a dedicated buffer, and extracting a desired image fragment from image data stored in a dedicated buffer when a part of the image is requested due to a movement or zoom operation, and an image processing method thereof .
According to another aspect of the present invention, there is provided an image processing method for a mobile terminal, the method including receiving a control command for loading and displaying a predetermined image file, receiving a view picture according to the control command, And generating and displaying a first view picture from the thumbnail of the image file if the requested view picture is a first view picture; and decoding the image data of the image file if the requested view picture is a second view picture And generating and displaying a second view picture from the decoded image data, if the requested view picture is not a first and a second view picture, extracting the requested view picture from the image data stored in the buffer, And displaying it.
A mobile terminal according to an exemplary embodiment of the present invention includes a user input unit for receiving a control command, a memory for storing an image file, and a display unit for displaying a view picture requested from a thumbnail of the image file according to a view picture required according to the control command An image processing unit for decoding the image data of the image file and storing the decoded image data in a buffer and extracting an image fragment for generating a requested view picture from the image data stored in the buffer to generate a requested view picture; A display unit for displaying a view picture output from the display unit, and a controller for controlling operations of the components.
The mobile terminal related to at least one embodiment of the present invention configured as described above forms an image data access structure and a thumbnail according to scenarios when storing images acquired from a camera or another terminal and stores them together. Thus, the present invention can quickly decode image data using image data access structures or thumbnails when decoding image data.
In addition, the present invention decodes the image data and stores it in a dedicated buffer for image processing, and extracts the requested image fragment from the image data stored in the buffer when partial decoding is required. Accordingly, the mobile terminal of the present invention does not decode the image data when partial decoding of the image data is required, so that partial decoding and representation can be performed quickly.
Hereinafter, a mobile terminal related to the present invention will be described in more detail with reference to the drawings. The suffix "module" and " part "for the components used in the following description are given or mixed in consideration of ease of specification, and do not have their own meaning or role.
The mobile terminal described in this specification may include a mobile phone, a smart phone, a laptop computer, a digital broadcasting terminal, a PDA (Personal Digital Assistants), a PMP (Portable Multimedia Player), navigation and the like. However, it will be understood by those skilled in the art that the configuration according to the embodiments described herein may be applied to a fixed terminal such as a digital TV, a desktop computer, and the like, unless the configuration is applicable only to a mobile terminal.
1 is a block diagram of a mobile terminal according to an embodiment of the present invention.
The
Hereinafter, the components will be described in order.
The
The
The broadcast channel may include a satellite channel and a terrestrial channel. The broadcast management server may refer to a server for generating and transmitting broadcast signals and / or broadcast related information, or a server for receiving broadcast signals and / or broadcast related information generated by the broadcast management server and transmitting the generated broadcast signals and / or broadcast related information. The broadcast signal may include a TV broadcast signal, a radio broadcast signal, a data broadcast signal, and a broadcast signal in which a data broadcast signal is combined with a TV broadcast signal or a radio broadcast signal.
The broadcast-related information may refer to a broadcast channel, a broadcast program, or information related to a broadcast service provider. The broadcast-related information may also be provided through a mobile communication network. In this case, it may be received by the
The broadcast-related information may exist in various forms. For example, an EPG (Electronic Program Guide) of DMB (Digital Multimedia Broadcasting) or an ESG (Electronic Service Guide) of Digital Video Broadcast-Handheld (DVB-H).
For example, the
The broadcast signal and / or broadcast related information received through the
The
The
The short-
The
Referring to FIG. 1, an A / V (Audio / Video)
The image frame processed by the
The
The
The
The
The
The
The
Some of these displays may be transparent or light transmissive so that they can be seen through. This can be referred to as a transparent display, and a typical example of the transparent display is TOLED (Transparent OLED) and the like. The rear structure of the
There may be two or
(Hereinafter, referred to as a 'touch screen') in which a
The touch sensor may be configured to convert a change in a pressure applied to a specific portion of the
If there is a touch input to the touch sensor, the corresponding signal (s) is sent to the touch controller. The touch controller processes the signal (s) and transmits the corresponding data to the
Referring to FIG. 1, a
Examples of the proximity sensor include a transmission type photoelectric sensor, a direct reflection type photoelectric sensor, a mirror reflection type photoelectric sensor, a high frequency oscillation type proximity sensor, a capacitive proximity sensor, a magnetic proximity sensor, and an infrared proximity sensor. And to detect the proximity of the pointer by the change of the electric field along the proximity of the pointer when the touch screen is electrostatic. In this case, the touch screen (touch sensor) may be classified as a proximity sensor.
Hereinafter, for convenience of explanation, the act of recognizing that the pointer is positioned on the touch screen while the pointer is not in contact with the touch screen is referred to as "proximity touch & The act of actually touching the pointer on the screen is called "contact touch. &Quot; The position where the pointer is proximately touched on the touch screen means a position where the pointer is vertically corresponding to the touch screen when the pointer is touched.
The proximity sensor detects a proximity touch and a proximity touch pattern (e.g., a proximity touch distance, a proximity touch direction, a proximity touch speed, a proximity touch time, a proximity touch position, a proximity touch movement state, and the like). The information corresponding to the detected proximity touch operation and the proximity touch pattern may be output on the touch screen.
The
The
The
In addition to the vibration, the
The
The
The
The
The identification module is a chip for storing various information for authenticating the use right of the
When the
The
The
The
In addition, the
The
The
The various embodiments described herein may be embodied in a recording medium readable by a computer or similar device using, for example, software, hardware, or a combination thereof.
According to a hardware implementation, the embodiments described herein may be implemented as application specific integrated circuits (ASICs), digital signal processors (DSPs), digital signal processing devices (DSPDs), programmable logic devices (PLDs), field programmable gate arrays May be implemented using at least one of a processor, controllers, micro-controllers, microprocessors, and other electronic units for performing other functions. In some cases, The embodiments described may be implemented by the
According to a software implementation, embodiments such as the procedures and functions described herein may be implemented with separate software modules. Each of the software modules may perform one or more of the functions and operations described herein. Software code can be implemented in a software application written in a suitable programming language. The software code is stored in the
2A is a perspective view of a mobile terminal according to an embodiment of the present invention.
The disclosed
The body includes a case (a casing, a housing, a cover, and the like) which forms an appearance. In this embodiment, the case may be divided into a
The cases may be formed by injection molding a synthetic resin, or may be formed to have a metal material such as stainless steel (STS) or titanium (Ti) or the like.
The
The
The
The contents inputted by the first or
2B is a rear perspective view of the mobile terminal shown in FIG. 2A.
Referring to FIG. 2B, a camera 121 'may be further mounted on the rear surface of the terminal body, that is, the
For example, the
A
An acoustic output 152 'may be additionally disposed on the rear surface of the terminal body. The sound output unit 152 'may implement the stereo function together with the sound output unit 152 (see FIG. 2A), and may be used for the implementation of the speakerphone mode during a call.
In addition to the antenna for talking and the like, a broadcast
A
The
The
Hereinafter, a related operation of the
3 is a front view of a mobile terminal for explaining an operation state of the mobile terminal according to the present invention.
Various types of time information can be displayed on the
At least one of the letters, numbers, symbols, graphics, or icons may be displayed in a predetermined arrangement for inputting such information, thereby being implemented as a keypad. Such a keypad may be called a so-called " soft key ".
FIG. 3 shows that a touch applied to a soft key is inputted through a front surface of a terminal body.
The
For example, an
Although the above embodiment discloses receiving a touch applied to a soft key through a front surface of a terminal body, in the case of a terminal having a transparent display, a touch applied to a soft key may be received through a rear surface of the terminal.
3, when the terminal body is arranged in portrait and the terminal body is changed to landscape, the terminal displays an output screen displayed on the
The terminal 100 shown in Figs. 1 to 3 is operable in a communication system capable of transmitting data through a frame or a packet, including a wired / wireless communication system and a satellite-based communication system .
4 is a flowchart illustrating a procedure for preparing an image file from an image input from a camera, according to an embodiment of the present invention. The present embodiment will be described taking the case of acquiring an original image from a camera as an example.
Referring to FIG. 4, the
The
The
For example, when the display screen size of the terminal is 320x240, the
When the thumbnail is generated, the
In addition, the image data access structure is used for partial decoding of image data. The image data access structure is an indicator that indicates a requested area if a certain area of the image data is requested according to a scenario. For example, the image data access structure includes information on a start point and an end point of a corresponding image fragment in accordance with a movement or zoom operation step.
When the additional information is generated, the
The original image data may be implemented as any one of RGB uncompressed data based on Tagged Image File Format (TIFF) and YCbCr uncompressed data and JPEG compressed data. In addition, the position information can be obtained through the
5 is a flow diagram illustrating a procedure for a mobile terminal associated with an embodiment of the present invention to prepare an image file from an image input from another source. The present embodiment describes an example of acquiring an image file from another source.
Referring to FIG. 5, the
Then, the
If it is determined that the loaded image file does not include a thumbnail, the
When the decoding of the image data is completed, a thumbnail is formed from the original image data and the terminal parameters (S204). For example, the
When the thumbnail is generated, the
When the additional information is generated, the
If the loaded image file contains a thumbnail in step S202, the
6 is an exemplary diagram illustrating an original image processed in a mobile terminal and a derivative image thereof according to an embodiment of the present invention.
6A shows an original image having a full resolution and an image obtained by adjusting the original image to a basic scale level. Here, the basic scaling level is set to a total of four including the original image (1: 1). In this embodiment, the basic scaling level is set to 1: 1, 1: 2, 1: 4, 1: 8, but the basic scaling level number can be changed.
Figure 6 (b) shows a thumbnail and a first view picture. Thumbnails can be displayed in a smaller image than original image data reduced to a basic level of 1: 8. The first view picture is generated from the thumbnail without decoding the original image.
FIG. 6 (c) shows corresponding image fragments (a-d) for each zoom step. A view picture is generated by the image fragment corresponding to each step each time an enlargement command is inputted in a state of displaying the first view picture. For example, in a case where zooming is performed in four steps, the
7 is a schematic diagram showing an image processing unit of a mobile terminal according to an embodiment of the present invention.
Referring to FIG. 7, the
The first and
In other words, the
The
The
The
In the
The
In addition, the
For example, the
The
When post-processing of the image data is completed, the
8 is a flowchart illustrating a method of displaying a first view picture of a mobile terminal according to an embodiment of the present invention. The present embodiment will be described taking the case of displaying the first view picture as an example.
First, the
When the album function is executed, the
If any of the image files in the image file list is selected, the
When the decoding of the thumbnail is completed, the
When the image data output from the thumbnail decoder is scaled, the
9 is a flowchart illustrating an image processing method according to a control command of a mobile terminal according to an embodiment of the present invention. The present embodiment will be described taking as an example a case of performing up, down, left and right movement (scrolling) or enlargement / reduction operations while displaying a specific image through a viewer.
First, the
When a control command is input from the
The
If the first view picture is requested in step S403, the
When the thumbnail is decoded, the
The
If the first view picture is not requested in step S403, the
If the second view picture is requested, the
When the original image data is decoded, the
The
When the requested image fragment is extracted, the
If the second view picture is not requested in step 311, the
10 shows a screen displaying a processed image of a mobile terminal according to an embodiment of the present invention.
First, when the user selects the album view in the menu, the
If the enlargement command for displaying the first view picture is inputted, the
If the enlargement command is input again in the state of displaying the second view picture on the display screen, the
If the reduction instruction is inputted in the state of displaying the third view picture, the
Further, according to an embodiment of the present invention, the above-described method can be implemented as computer-readable code on a medium on which a program is recorded. The computer readable medium includes all kinds of recording devices in which data that can be read by a computer system is stored. Examples of the computer-readable medium include ROM, RAM, CD-ROM, magnetic tape, floppy disk, optical data storage, and the like, and also implemented in the form of a carrier wave (for example, transmission over the Internet) . In addition, the computer may include a
The above-described terminal may be configured such that the configuration and method of the embodiments described above are not limitedly applied, but the embodiments may be configured such that all or some of the embodiments are selectively combined so that various modifications may be made. have.
1 is a block diagram of a mobile terminal according to an embodiment of the present invention;
2A is a front perspective view of a mobile terminal according to an embodiment of the present invention;
FIG. 2B is a rear perspective view of a mobile terminal according to an embodiment of the present invention; FIG.
3 is a front view of a mobile terminal for explaining an operation state of the mobile terminal according to the present invention;
4 is a flow chart illustrating a procedure in which a mobile terminal associated with an embodiment of the present invention prepares an image file from an image input from a camera.
5 is a flow diagram illustrating a procedure for a mobile terminal associated with one embodiment of the present invention to prepare an image file from an image input from another source.
FIG. 6 is an exemplary diagram showing an original image processed in a mobile terminal and a derivative image thereof according to an embodiment of the present invention; FIG.
7 is a block diagram illustrating an image processing unit of a mobile terminal according to an embodiment of the present invention;
8 is a flow chart illustrating a method of displaying a first view picture of a mobile terminal in accordance with an embodiment of the present invention.
9 is a flowchart showing an image processing method according to a control command of a mobile terminal according to an embodiment of the present invention.
10 is a view illustrating a screen displaying a processed image according to an embodiment of the present invention
DESCRIPTION OF THE REFERENCE NUMERALS
100: mobile terminal 110: wireless communication unit
120: A / V input unit 130: user input unit
140: sensing unit 150: output unit
160: memory 170: interface section
180: control unit 190: power supply unit
Claims (25)
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US9749649B2 (en) | 2014-08-27 | 2017-08-29 | Fingram Co., Ltd. | Method and system for generating and displaying thumbnail images from original images |
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WO2003034709A1 (en) * | 2001-10-17 | 2003-04-24 | Naltec Inc. | Decompressing method and data processor |
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