KR20050043354A - Method and apparatus for generating thumbnail using by still picture in digital recorder - Google Patents

Abstract

The present invention captures an image of a disc being played back or still on a digital recorder, a moving image or a still image input from an external device, and stores it in a storage means such as a flash memory in the digital recorder. The present invention relates to a method and apparatus for generating a thumbnail of a digital recorder using a still image, which can be used as a representative screen when editing a moving picture title of a DVD-RW disc. Stage 1; A second step of capturing and storing a still image of a moment in the digital stream; Determining whether there is an editing command for the recording list; And generating a thumbnail image of the recording list by selecting one of the still images stored. According to the present invention, the reproduction of the list is performed for a plurality of recording lists. The troublesome problem of checking the contents can be solved, and referring to the thumbnail image of each program displayed in the recording list, it is possible to more conveniently select a desired program.

Description

Method and apparatus for generating thumbnail of digital recorder using still image {Method and Apparatus for Generating Thumbnail Using by Still Picture in Digital Recorder}

The present invention relates to a method and apparatus for generating a thumbnail of a digital recorder using a still image, and more particularly, to an image of a disc being played back or still on a digital recorder, a moving image or a still image input from the outside. The digital recorder using a still image that is captured and stored in a storage means such as a flash memory in the digital recorder and used as a representative screen when editing a moving picture title of a digital recording disc (DVD-RW Disc). It relates to a method and apparatus for generating thumbnails.

The digital recorder records and stores various programs of digital video and audio data on the hard disk, as well as a play list for selecting and playing arbitrary programs desired by the user. Will display the output.

1 is a diagram illustrating a pop-up window in which a playlist of a conventional digital recorder is displayed on a screen.

As shown in Fig. 1, each program name for programs recorded and stored on the hard disk is displayed in a list in the playlist, and the user selects and designates any one program name after the playlist is displayed. The video and audio data of the program can be played easily.

When a playlist is requested from the user, the digital recorder outputs and displays playlists for a plurality of programs recorded on the hard disk as shown in FIG. 1 through an On Screen Display (OSD) function. In the playlist, a thumbnail-picture that represents each program, a program name, and recording date and time information are displayed.

Depending on the user's keystrokes, the digital recorder will display a pop-up window that includes the 'Edit Playlist' menu item via the OSD function. In the case of selecting and specifying a plurality of programs, for example, as shown in FIG. 1, in the case of selecting and specifying the first, second, and sixth programs sequentially, the first, second, and sixth programs are reproduced as one. It will be set as a list.

However, when selecting and playing a recorded playlist that has been recorded as in the prior art, if the list has already been watched by the still image of the thumbnail image displayed in the playlist, the contents of the list may be roughly understood. If it's a list, you don't know what's in it. In addition, the thumbnail image of each playlist designates a specific scene or a specific frame of the digital stream, but mainly the first scene or frame is designated, so that the user often does not know what the contents are even after viewing the thumbnail image. .

Therefore, when a user only sees a thumbnail image and a title, and wonders what the contents are, the user has to check the contents by playing the list one by one. In this case, when the user does not want to check and watch the contents of the selected list, the user needs to display the playlist again on the screen and select and play another list from the list which has not been selected.

The present invention for solving the above problems, after capturing an image of a disc being played back or still in a digital recorder, a moving image or still image (Still Image) input from the outside, the flash memory in the digital recorder It is an object of the present invention to provide a method and apparatus for generating a thumbnail of a digital recorder using a still image, which is stored in a storage means such as and used as a representative screen when editing a moving picture title of a digital recording disc (DVD-RW Disc).

In order to achieve the above object, the present invention provides a thumbnail generating device of a digital recorder that displays a recording list of a plurality of recordings that are recorded and recorded as a recording list including a thumbnail image, and records a digital stream input from an external source. A recording / reproducing unit for signal processing with data suitable for the present invention or reproducing data for the recordings; An OSD generator outputting and displaying a recording list of the plurality of recordings; A key input unit for inputting a command for capturing a specific image during reproduction of the recording or for inputting a command for editing the thumbnail image; If a capture command is input while recording or playing the recording, the still image corresponding to the moment when the capture command is input is stored, and if there is a command to edit the recording list, the stored still image corresponds to the recording list. A microcomputer that controls a process of replacing and setting the thumbnail image; And a still image extracting unit extracting a scene or a frame at the moment when the capture command is input into the still image under the control of the microcomputer.

According to another object of the present invention, there is provided a thumbnail generation method of a digital recorder that generates thumbnail images from still images captured by a user in a recording list of a plurality of recordings, the method comprising: reproducing or recording a digital stream selected by a user; Stage 1; A second step of capturing and storing a still image of a moment in the digital stream; Determining whether there is an editing command for the recording list; And generating a thumbnail image of the recording list by selecting one of the still images stored in the digital image recorder.

Hereinafter, exemplary embodiments of the present invention will be described in detail with reference to the accompanying drawings.

First of all, in adding reference numerals to the components of each drawing, it should be noted that the same reference numerals are used as much as possible even if displayed on different drawings.

In addition, in describing the present invention, when it is determined that the detailed description of the related well-known configuration or function may obscure the gist of the present invention, the detailed description thereof will be omitted.

2 is a block diagram schematically showing the configuration of a thumbnail generating device of a digital recorder using a still image according to an embodiment of the present invention.

The thumbnail generating apparatus 200 according to the present invention includes a storage 210 and a recording / reproducing unit 220. The microcomputer 230, the OSD generator 240, the flash memory 250, the still image extractor 260, the key input unit 270, and the like may be included.

The storage 210 may be a hard disk in which various programs of digital video and audio data are recorded and stored, and the recording / reproducing unit 220 records data input from the outside under the control of the operation of the microcomputer 230. Signal processing is performed with suitable data to perform a series of data recording and reproducing operations for recording on the hard disk or reading and reproducing the data recorded on the hard disk.

When the microcomputer 230 requests the display of the recording list from the user, the microcomputer 230 operates the OSD generating unit 240, and the OSD generating unit 240 records a plurality of programs recorded and stored on the hard disk. Will display the list. In this case, as shown in FIG. 3, the recording list includes a thumbnail-picture that represents each program, a program name, a recording date, and time information.

In addition, the microcomputer 230 plays a multimedia data such as a video stored in the storage 210 through the recording / playing unit 220, or records / plays multimedia data input from the outside, and the key input unit 270. When the capture command is inputted through the control panel, the process of storing the still image corresponding to the moment when the capture command is input to the flash memory 270 is controlled. When the 'recording list' is requested according to the user's request, the OSD generator 240 controls the recording list including the thumbnail image as a pop-up window as shown in FIG. 3. In addition to the display, a large cursor is displayed to select an arbitrary recording list from a plurality of recording lists. After the user moves the cursor to an arbitrary recording list by a user's operation, and if there is a command to edit the recording list, the thumbnail image of the recording list where the cursor is located is stored in the flash memory 270. Control the process of selecting and setting one. Then, the microcomputer 230 additionally records the selected still image on, for example, a DVD-RW disc, and updates thumbnail position information of the corresponding title by using the position information of the recorded still image.

 The still image extractor 260 extracts a scene or a frame at a predetermined moment through a predetermined algorithm under the control of the microcomputer 230 according to a user's key input command and selects the still image as a still image. The still image selected as the thumbnail image is stored in title information of the corresponding program.

The key input unit 270 inputs a command for capturing a specific image of the reproduced multimedia data, or inputs a command for editing a thumbnail image in the recording list. In addition, the still image for the thumbnail stored in the flash memory 270 has a limit of the quantity that can be stored because of the capacity of the flash memory 270. Accordingly, the key input unit 270 includes a button for inputting a command for deleting some of the still images for thumbnails stored in the flash memory 270 according to a user's need.

Next, a thumbnail generation method of a digital recorder using a still image according to an embodiment of the present invention will be described with reference to the flowchart shown in FIG. 4.

First, when the microcomputer 230 plays multimedia data such as a video input from the outside of the digital recorder, or plays multimedia data stored in the storage 210 such as a hard disk, the user through the key input unit 270 is used. The multimedia data of the selected content is reproduced through the recording / reproducing unit 220 (S402).

When the user views the multimedia data in the form of a digital stream reproduced through the recording / reproducing unit 220, the scene which is considered to be the most important or the key scene of the story of the program comes out of the key input unit 270. The operation inputs a capture command (S404).

When the capture command is input from the key input unit 270, the microcomputer 230 extracts a still image of the still image at the moment when the capture command is input from the key input unit 270 among multimedia data reproduced through the recording / playback unit 220. Captured through the unit 260 and stored in the flash memory 250 (S406). That is, when the microcomputer 230 plays the multimedia data stored in each address of the storage 210 through the recording / playing unit 220, at the moment a capture command is inputted, the microcomputer 230 is assigned to the address of the still image being played. The multimedia data of the corresponding still image is stored in the flash memory 250 as a still image of, for example, "title01.jpg" form.

In this process, the microcomputer 230 may capture and store a plurality of still images in the flash memory 250 by using a plurality of capture commands by the user.

Thereafter, the user operates the key input unit 270 to request a recording list (S408).

Upon request of a recording list from the key input unit 270, the microcomputer 230 controls the OS D generator 240 to display a recording list including thumbnail images for each program stored in the storage 210. As shown in Fig. 3, a plurality of pop-up windows are displayed (S410). In addition, the microcomputer 230 also displays a cursor (Cursor) to select an arbitrary recording list from the plurality of recording lists together with the recording list.

The user moves the cursor by a key input operation through the key input unit 270 to place the cursor on the second recording list " Know yourself, " (S412).

When the recording list editing command is input from the key input unit 270, the microcomputer 230 displays a menu for editing the recording list in a pop-up window, for example, a recording list editing menu such as “load capture image” or “change list title”. (S414).

If the user wants to change the thumbnail image in the recording list of "Cell yourself" currently selected, the user selects a "load capture image" menu (S416).

When the "Load Capture Image" menu is selected from the key input unit 270 by the user's key input operation, the microcomputer 230 displays a plurality of image lists for a plurality of still images stored in the flash memory 250. (S418).

The user selects a still image most suitable for the program "Know yourself" from the plurality of image lists (S420).

The microcomputer 230 replaces and sets a still image selected by the key input unit 270 with a thumbnail image of a recording list of "know yourself" that was selected as an editing target (S422).

In this process, the user selects a thumbnail image for each recording list and selects a still image that best represents the program among a plurality of still images.

Then, when the user checks the thumbnail image of each recording list and wants to understand the contents of each multimedia data to some extent, the user inputs a play execution to the list where the cursor is located by key input operation.

When the playback execution is input to the recording list where the cursor is located by the user's key input, the microcomputer 230 reads the multimedia data corresponding to the recording list where the cursor is located from the storage 210 and records / reproduces the 220. Play back from the first frame.

That is, as described above, the user can more conveniently select a desired program through the thumbnail images in the recording list, and also quickly recognize the contents of each recording list and immediately play the recording list. You can then run

For reference, the present invention can be applied to an optical disk device for recording or reproducing data on a large capacity recording medium other than a hard disk, for example, an optical disk such as a DVD.

According to the present invention, after capturing an image of a disc being played back or still in a digital recorder, a moving image or still image input from an external device, and storing it in a storage means such as a flash memory in the digital recorder. It is possible to realize a method and apparatus for generating a thumbnail of a digital recorder using still images which can be stored and used as a representative screen when editing a moving picture title of a digital recording disc (DVD-RW Disc).

The above description is merely illustrative of the technical idea of the present invention, and those skilled in the art to which the present invention pertains may make various modifications and changes without departing from the essential characteristics of the present invention.

Therefore, the embodiments disclosed in the present invention are not intended to limit the technical idea of the present invention but to describe the present invention, and the scope of the technical idea of the present invention is not limited by these embodiments.

The protection scope of the present invention should be interpreted by the following claims, and all technical ideas within the equivalent scope should be interpreted as being included in the scope of the present invention.

As described above, according to the present invention, it is possible to solve the troublesome problem of checking the contents by reproducing the list for a plurality of recorded lists.

In addition, referring to the thumbnail image of each program displayed in the recording list, it is possible to more conveniently select a desired program.

And, there is an effect that can easily check the content of the stored content through the thumbnail image included in each list, without playing the stored content.

1 is a diagram illustrating a pop-up window in which a playlist of a conventional digital recorder is displayed on a screen;

2 is a block diagram schematically illustrating a configuration of an apparatus for generating a thumbnail of a digital recorder using a still image according to an embodiment of the present invention;

3 is a view showing a recording list including a thumbnail image according to an embodiment of the present invention;

4 is a flowchart illustrating a thumbnail generation method of a digital recorder using a still image according to an exemplary embodiment of the present invention.

<Description of Symbols for Main Parts of Drawings>

200: thumbnail generating device 210: storage

220: recording / playback unit 230: micom

240: OSD generator 250: Flash memory

260: Still image extraction unit 270: Key input unit

Claims (10)

A thumbnail generating device of a digital recorder for generating a thumbnail image of a still image captured by a user in a recording list of a plurality of recordings, A recording / reproducing unit for processing a digital stream input from the outside into data suitable for recording or reproducing data for the recording; An On Screen Display (OSD) generation unit for outputting and displaying a recording list of a plurality of recordings; A key input unit for inputting a command for capturing a specific image during reproduction of the recording or for inputting a command for editing the thumbnail picture; If a capture command is input while recording or playing the recording, a still image corresponding to the moment when the capture command is input is stored, and if there is a command to edit the recording list, a thumbnail of the recorded list is displayed. A microcomputer for controlling the process of replacing and setting the image; And And a still image extracting unit extracting a scene or a frame at the moment when the capture command is input as the still image under the control of the microcomputer. Thumbnail generation device. The method of claim 1, The plurality of recordings are stored in a hard disk having a large capacity as multimedia data in the form of a digital stream, And a still image captured by the still image extracting unit is stored in a specific position among title information. The method of claim 2, When a user requests a display of a recording list from the key input unit, the microcomputer controls the OS generating unit to display a plurality of recording lists including the thumbnail image as a pop-up window. Displays Cursor to select any recording list among multiple recording lists. If the cursor moves by the user's operation and is located in an arbitrary recording list, and if there is a command for editing the recording list in which the cursor is located from the key input unit, the microcomputer displays a thumbnail corresponding to the recording list in which the cursor is located. Thumbnail generation apparatus for a digital recorder using a still image, characterized in that for setting the video, one of the still image selected. The method of claim 3, wherein And the recording list includes a thumbnail-picture that can represent each recording, and a program name, a recording date, and time information. The method of claim 3, wherein The microcomputer further records the still image selected as the thumbnail image on a disc, and updates the thumbnail image position information of the corresponding title by using the position information of the recorded still image for the thumbnail. Thumbnail generating device of digital recorder. A thumbnail recording method of a digital recorder for generating a thumbnail image of a still image captured by a user in a recording list of a plurality of recordings, A first step of playing back or recording the digital stream selected by the user; A second step of capturing and storing a still image of a moment in the digital stream; Determining whether there is an editing command for the recording list; And And generating a thumbnail image of the recording list by selecting one of the still images stored therein. 4. The method of claim 6, When the user inputs a capture command by manipulating a key input unit in the first step, the second step captures a still image of the moment when the capture command is input from the digital stream to be played back or recorded to the title information of the program. Thumbnail generation method of a digital recorder using a still image, characterized in that for storing. The method of claim 7, wherein In the second step, when recording or reproducing the stream data stored at each address of the recording, the stream data of the still image corresponding to the address of the stream data to be reproduced at the moment of the capture command is input. A method of generating a thumbnail of a digital recorder using a still image, characterized in that the image is stored in a flash memory as a still image. The method of claim 7, wherein In the third step, if there is a request for a recording list from a key input unit, the OSD controller is controlled to display a plurality of recording lists including the thumbnail image in a pop-up window for each digital stream, and randomly among a plurality of recording lists. It also displays a cursor to select a recording list for A command for executing editing by placing the cursor on a recording list to be edited from a key input unit is inputted. In the fourth step, if an editing command for the recording list is input from the key input unit, a menu for editing the recording list is displayed in a pop-up window, and if there is a selection of a "Load Capture Image" menu from the key input unit, Displays a list of a plurality of images of a plurality of still images stored in a flash memory, and when an arbitrary still image is selected from the plurality of image lists by the key input unit, the still image selected by the key input unit is edited. The method of generating a thumbnail of a digital recorder using a still image, characterized in that for setting to replace the thumbnail image of the recording list. The method of claim 9, And the recording list includes a thumbnail-picture that can represent each recording, and a program name, recording date, and time information.