KR20070034683A - Slide show playback system and management method with background music processing of audio files, simultaneous playback of still images, and preview editing using thumbnail form - Google Patents

Abstract

The present invention relates to an apparatus and a management method for simultaneously playing back still and audio files for a slideshow function. In the management method, the OSD function is included on the screen during the playback and the list editing for the playback, and the preview editing function using the thumbnail form is included during the editing. The OSD dedicated key on the remote control and the OSD overlay on the playback screen provide the convenience of playback. In the thumbnail type implementation, the pyramid image processing is used to preview and edit the file folder. The managing media file manager includes a structure capable of simultaneously playing back still image files and audio files for each folder.

       Slide Show Player, Thumb Nail, Remote Control, Still Image, Audio File

Description

Slideshow player system and administration apparatus with simultaneously player for still image and background processing of audio file and by using of thumb nail form with preview editing function}

1 illustrates an embodiment of a method of managing a conventional still image.

2 is a schematic system block diagram of a playback and file management system of a slideshow player according to the present invention.

FIG. 3 is a structural diagram for explaining the function of the slideshow player shown in FIG. 1.

4 is a general flowchart of a thumbnail shape processing method of a slideshow player according to the present invention.

FIG. 5 is a diagram for describing a pyramid image processing method for performing the thumbnail shape function shown in FIG. 4.

6 is a diagram illustrating a thumbnail-type preview screen displaying a result of the flowchart of FIG. 4 on a screen.

7 is a view for explaining the operation of the OSD key of the remote control and the OSD of the slide show player.

8 is an overall flowchart of the OSD operation processing method of FIG. 7.

9 is a view for explaining a method of copying when editing an album photo file of a slideshow player.

FIG. 10 is a diagram for explaining synchronization management for simultaneously playing back a still image and an audio file of a slideshow player.

FIG. 11 is an overall flowchart of a file editing management and audio background file processing and still image operation processing method of FIGS. 9 and 10.

Domestic Application 10-2002-0001021 Desktop Electronic Frame

Domestic Application 10-2003-0007909 How to prevent file overlapping of electronic photo frames for TV

Domestic application 10-2003-0045755 Image display device and method with television function and electronic frame function

Domestic application 10-2004-7008283 Recording medium having a data structure for managing the reproduction of a slideshow, and a method and apparatus for recording and reproducing accordingly

The present invention manages files in the form of albums by receiving still images acquired from a digital camera or scanner from a universal serial bus interface of a memory card or personal computer, and simultaneously plays back still images and audio files. A method and apparatus for implementing a slideshow.

In recent years, with the rapid development and dissemination of digital cameras and mobile phone cameras, technologies for enabling users to easily use digital media contents using these information home appliances are rapidly developing.

As described above, in case of using a personal PC monitor or a separate photo printing device, it is necessary to view the PC after booting up cumbersomely, and there is a problem of using a separate program and printing a digital image in a frame or album. Korean patent application 10-2003-0045755 proposes an image display device having a TV function and an electronic frame function, and domestic patent application registration 10-0488020 proposed to prevent overlapping storage during file management of electronic frame for TV. Patent application publication No. 2003-0060356 is characterized by an electronic frame for transmitting and receiving image data through the network.

Korean Patent Application No. 10-2004-7008283 proposes a data structure and a reproduction method for reproduction management of still images recorded on an optical disc for high density reproduction.

1 is a block diagram illustrating a conventional playback method for managing slideshow playback and a method of managing still images.

As shown in FIG. 1, the conventional slideshow playback management utilizes navigation information of a play list 110 file recorded on a recording medium to display one still image or a group of still images and / or Video Presentation Units (VPU) The display time and display method of the video stream clip 140 are provided by one or more slideshow indicators 100. The slide show indicator 100 associates one still image or a group of still images with the clip video stream 120. The clip video stream 120 may include video and audio data, or only audio data. The still images may be stored as one image file or each still image 150 may be stored as a separate image file. It is characterized by managing still images and audio data recorded on high-density playback-only optical discs, and is suitable for managing large-capacity video data in a stream type, and requires a complicated encoding process for storing a separate program or navigation information. There are disadvantages.

Accordingly, an object of the present invention is to solve the problems associated with the case where it is possible to operate only a dedicated electronic frame in addition to the playlist management to implement the conventional slideshow as described above,

Disclosure of Invention An object of the present invention is to provide a method of playing a slideshow or playing a slideshow by reading a still image file from a memory card that can be used as an internal memory or an external storage medium mounted on a digital camera and a mobile phone camera while having a USB interface. Is

It is another object of the present invention to provide a synchronization method and a picture preview function for simultaneously playing back still images and audio files, which are limited to slideshows of still images only at regular time intervals. In order to perform a show, it is difficult to play a slide show by managing still images using only file names, and thus, a thumbnail nail type preview function is provided for each file folder.

The playback system 'slideshow playback system and management method having a preview editing function using the background music processing of audio files and simultaneous playback of thumbnails and thumbnail forms to achieve the above object,

In the USB interface for interfacing with an external device, and a memory interface for recognizing various types of memory card, read still image data or transfer data to the internal memory,

 A memory for storing still images and audio data together with the memory interface;

 A display interface for playing back still images of slideshows by connecting to display elements such as LCD panels or TVs, a remote control receiver for receiving operation commands from an external remote controller, a radio receiver for receiving radio broadcasts, and delivering audio data; In the audio output for playing the audio of the slideshow, and the media file manager,

And a control unit for controlling the operation by the program driver.

Management method of the 'slideshow playback system and management method having a preview editing function using the background music processing of audio files and the simultaneous playback of the still image and thumbnail form according to the present invention for achieving the above object,

In the application execution step and thumbnail function selection step,

Randomly extracting still image files for each file folder according to the thumbnail function selection, performing a pyramid image algorithm with a thumbnail display size, storing a buffer memory as a result of performing a pyramid image algorithm, and previewing the contents of a thumbnail nail memory for each file folder Performing a view display;

At the beginning of the slide show,

In the step of playing photos and music and selecting OSD key input according to selecting the start of the slide show,

In the step of displaying on the OSD icon screen and selecting the OSD function according to the OSD key input selection,

Performing an application program according to a key operation selected according to the OSD function selection;

In the slide list selection step,

In the step of selecting a photo folder list according to the slide list selection,

In the step of displaying the picture playback file list according to the picture folder list selection, and when the slide list is not selected,

In the music folder list selection step,

In the music playback file list display step and the file editing command selection step according to the music folder list selection,

And reproducing the files of the selected picture folder and the files of the selected music folder simultaneously according to the file editing command selection.

When described in detail based on the accompanying drawings, preferred embodiments of the present invention for solving the above problems are as follows.

2 is a schematic system block diagram of a playback and file management system of a slideshow player according to the present invention.

The slide show player 200 recognizes various external memory card types (M ₀ to M _n ), reads still image data, and stores or displays them in the memory 480 through the memory interface 470 of the media playback management unit 400. The still image is displayed on a display device such as an LCD through the interface 440. At this time, the audio data stored in the music folder, which is synchronized by folder in advance, is transmitted from the memory 480, and the audio file and the audio are output through the audio output unit 430 after the media file manager 450 decodes the audio data and the still image data. Play it. Media file manager 450,

A program driver 452 for executing an application program therein, a file manager 453 for managing still images and audio data files, and a controller 451 for controlling peripheral devices by the program driver 452.

In addition, the media playback management unit 400 includes a remote control receiver 410 for receiving and interpreting a command execution key value for a slideshow operation from an external remote controller 300 and a radio receiver 420 for receiving a separate radio broadcast. Include.

The slide show player 200 basically performs the basic functions such as play, screen setting, environment setting, sound setting as shown in FIG. 3, and the play function plays an album, a calendar, and a clock. It selects brightness, playing interval, slide list, and performs auto off schedule, language, clock setting, and alarm setting. Sound settings also include playback mode, fade in / out, and key sound on / off.

4 is a flowchart illustrating a thumbnail processing method of a slideshow player according to the present invention. When the program driver 452 of the media file manager 450 executes an application program according to a screen setting selection (S100), a thumbnail function is performed. Start S110 selection is required. If the thumbnail function operation is performed, a still image file for each file folder is randomly extracted (S120), and then a pyramid image algorithm is performed (S130) with the randomly extracted still image data at the thumbnail display size. The pyramid image algorithm performs a result of buffer memory storage (S140) and performs thumbnail display of thumbnail buffer memory contents for each file folder (S150).

FIG. 5 is a diagram for describing a pyramid image processing method for performing the thumbnail shape function shown in FIG. 4.

The pyramid image processing algorithm refers to subdividing one still image into several identical still images at different resolutions. If the pyramid image is defined as an array function of k = 0, ..., n , f _k (i, j) has a size of 2 ^k x 2 ^k as shown in FIG. The size of the topmost array, Level ₀ , is 1 and is represented by the whole image. The size of the lower array Level _n is 2 ⁿ x 2 ⁿ Will have the maximum size. As a granular level k and the pixel level of the _k f k (i, j) is the definition of the level k + 1 in the four neighboring pixels ^{_{f k +1 (i ', j}} ') is,

f _k (i, j) = g ( f _{k +1} (2i, 2 j ^' ), f (2i, 2j + 1), f (2i + 1,2j), f (2i + 1,2j + 1)) i, j = 0, ..., 2 ^k -One

Where g (*) is the mapping function. 2 (b) shows the result of mapping from one pyramid level to the next level. According to this mapping procedure, the one-step pyramid image algorithm performs the following operation.

The array size of the thumbnail image of the pyramid image processing is defined as the size of each display of the preview screen of FIG. 6.

6 is a diagram illustrating a thumbnail-type preview screen displaying a result of the flowchart of FIG. 4 on a screen.

The user can easily perform slideshow playback by using the preview screen of the result of performing the thumbnail pyramid image processing algorithm for each playlist.

7 is a view for explaining the operation of the OSD key of the remote control and the OSD of the slide show player.

The slide show player 200 displays an OSD (On Screen Display) according to the OSD operation keys of the remote controller 300 while the screen is being played. The icon of the OSD Q100 is superimposed on the screen to display the desired remote control keys. Allows you to check the operation.

FIG. 8 is an overall flowchart of the OSD operation processing method of FIG. 7. When the program driver 452 of the media file manager 450 executes an application program according to the screen setting selection (S100), whether to start the slide show (S200) step is selected. If you want to check the progress of the slideshow and perform the photo and music playback (S210). In the next step, when the OSD key input is selected through the OSD key input selection (S220) step, the display is performed on the OSD icon screen (S230), and according to the selected key operation according to the OSD function selection in the OSD function selection (S240) step. Perform the application program (S250) step.

9 is a view for explaining a method of copying when editing an album photo file of a slideshow player.

FIG. 9 (a) shows a thumbnail-type preview screen of a target file folder to be copied. When a user selects a selection key at a photo position to be copied, a check mark is displayed on the upper left. Finally, select the 'Copy' icon and you're ready to copy. 9 (b) shows a file list screen to be copied and stored, and if the icon of 'copy' is selected immediately after changing to the file folder to be copied from the copy ready state, the copy in progress state is shown together.

9 (c) shows a preview of the photo file in which copying is completed and shows that the slide show can be performed.

FIG. 10 is a diagram for explaining synchronization management for simultaneously playing back a still image and an audio file of a slideshow player.

FIG. 10A illustrates a screen for selecting a picture to be reproduced in a still image file folder, and FIG. 10B illustrates a screen for selecting music to be reproduced in an audio file folder. The still image file folder 1 is set in the audio file folder 1 and the still image file folder 2 is set by the user so that the checked pictures and music in the audio file folder 2 can be played simultaneously. In particular, still image data read from various external memory card types (M ₀ to M _n ) is displayed as a preview in folder 4 and played back in synchronization with audio file folder 1.

FIG. 11 is a flowchart of a file editing management, audio processing, and processing of still images of an audio file in FIGS. 9 and 10. The application program according to the screen setting selection by the program driver 452 of the media file manager 450 is shown in FIG. When performing the operation (S100), selecting the photo folder list selection (S310) in the slide list selection (S300) performs the photo playback file list display step (S340), and if the photo folder list selection (S310) is not selected, the music folder is selected. By selecting the music folder list in the list selection (S320) and performing the music playback file list display step (S330), various editing commands are performed in the file editing command selection step (S350). 9 illustrates a screen for performing a command of copying a file editing command. In addition, when the file editing command selection (S350) is called 'slide', the file playback of the selected photo folder and the file of the selected music folder are simultaneously performed in sequence (S360).

Therefore, according to the present invention, the user can easily view a picture that he wants to see through a preview function using a thumbnail form of a still image stored in a personal PC or a memory card, and play a slideshow by simply operating a simple remote controller that matches the OSD function. It can be easy to edit and manage.

In addition, according to the present invention, it is possible to easily view still images and audio files, which are media contents, and to provide a high level of service to a user by selecting a desired audio file as a background music and displaying a still image file to be viewed on a screen. It can also be effective.

Claims (20)

A playback system having a data structure for managing slideshow playback of still image data transmitted through an internal memory, an external memory card, or a USB interface, Media file manager for processing background music of audio files and simultaneous playback of still images and thumbnail pyramid image algorithm for performing preview function while performing OSD function on the screen during playback in the media file manager. Regeneration system, characterized in that. The method of claim 1, And a UBS interface capable of receiving still image and audio data of a media content stored in the electronic device through the UBS port. The method of claim 1, And a memory interface for accessing still image data files from an internal memory or an external memory card. The method of claim 1, And a memory unit for accessing a file by the memory interface or storing a result of editing and files of a still image file or an audio file by a media file manager. The method of claim 1, And a display driver for executing an application program in the media file manager to display the editing and playback results of the still image file. The method of claim 1, And a remote control receiver configured to receive a slideshow control command through an external remote controller to perform the OSD function during playback. The method of claim 1, And a radio receiver for receiving a general radio broadcast or a specific radio broadcast frequency channel and converting the signal into audio and text data. The method of claim 1, And an audio output unit which executes an application program in the media file manager to reproduce the result of editing and playing the audio file to a speaker or an external audio device. The method of claim 1, wherein the media file manager, A program driver which drives an application program according to the corresponding program and manages still image files and audio files; A control unit controlling a flow of control signals to a remote controller receiver, a radio receiver, an audio output unit, a USB interface, and a memory interface, which are peripheral devices according to a program command of the program driver; And a file management unit for retrieving still image data and audio data files stored in an external memory card through the memory or the memory interface. The method of claim 9, wherein the program driver, In the playback function, album, calendar, clock, Radio application; Screen brightness, playback interval, slide list selection application program; A playback system characterized by executing the auto off schedule, language, clock setting, alarm setting application in the configuration function, and playback mode, fade in / out, key sound on / off application in the sound setting function. The method of claim 1, wherein the media file manager, And a preview display of a thumbnail buffer memory for each file folder by performing a pyramid image algorithm with a thumbnail size of a thumbnail. The method of claim 1, wherein the media file manager, A playback system characterized by displaying an OSD on a screen according to the selection of an OSD key input and executing an application program according to a selected key operation during a slide show playback. The method of claim 1, wherein the media file manager, A display system for displaying a photo folder and a music folder when selecting a slide list, and performing file editing according to a file editing command, and simultaneously playing files in a selected photo folder and a music folder sequentially when selecting a slideshow playback command. The method of claim 13, The file editing command includes a slide show playback, a file copy, a delete, and a whole select command for each folder. The method of claim 14, If the file copy command is selected, copying the media content file selected from the folder to a folder desired by the user; And when the delete command is selected, only the media content file selected in the folder is deleted. Displaying a thumbnail-type preview of the still image of the selected folder for synchronization for simultaneously playing back the still image and the audio file, and creating a folder for displaying a file list for the audio file; A user selecting an editing command for the slide list selection; And displaying a preview or a file list of a folder desired by the user for the execution result of the editing command on the media file contents selected in the selected folder. The method of claim 16, In order to synchronize the still image and the audio file at the same time, the user checks each still image and the audio file for each folder. Still image file folder 1 includes: an audio file folder 1; Still image file folder 2 includes audio file folder 2; Still image file folder 3 includes audio file folder 3; The still image file folder 4 is a one-to-one correspondence for each folder of the audio file folder 1, wherein the media manager accesses and decodes the still image and the audio data so that pictures and music can be played simultaneously. The method of claim 16, The file editing command includes a slide show playback, file copying, deleting, and all selecting commands for each folder. The method of claim 16, Extracting random files for each still image folder to implement the thumbnail shape; Performing a pyramid image algorithm with a preview display size; Storing a result of performing a pyramid image algorithm in a thumbnail buffer memory; And displaying the contents of the thumbnail buffer memory for each folder in a preview. The method of claim 18, Display the still image on the screen according to the slideshow play command, and set the OSD key and the OSD display icon on the external controller in a one-to-one correspondence, and display an icon corresponding to the OSD overlap and key operation on the screen when the remote control key is operated. Management method comprising the step of doing.

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