KR101396964B1 - Video playing method and player - Google Patents

Abstract

The present invention relates to an apparatus and method for reproducing a picture, and a picture reproducing apparatus according to the present invention includes a thumbnail extracting unit for extracting a thumbnail from image data, a storage unit for storing the image data and the extracted thumbnail, An OSD unit for implementing a recording list screen for displaying at least one thumbnail for each of the stored video data, and a controller for extracting a thumbnail from the video data and controlling the implementation of the recording list screen.

Therefore, according to the present invention, there is an effect that a user can conveniently search and reproduce an image to be viewed.

Playback device, thumbnail

Description

≪ Desc / Clms Page number 1 > Video playing method and player &

1 is a block diagram schematically showing a configuration of a recording material reproducing apparatus according to an embodiment of the present invention.

FIG. 2 is a diagram illustrating a menu including confirmation of a recording list according to an embodiment of the present invention.

FIG. 3 is a diagram illustrating a recording list screen using a thumbnail according to an embodiment of the present invention.

4 is a diagram illustrating a screen for editing a playlist using a thumbnail according to an embodiment of the present invention.

5 is a view showing a menu for registering a playlist according to an embodiment of the present invention;

FIG. 6 is a view showing a progress bar showing a reproduction status according to an embodiment of the present invention

7 is a diagram illustrating a screen on which a progress bar is implemented according to an embodiment of the present invention.

8 is a flowchart illustrating a process of editing a playlist using a thumbnail according to an embodiment of the present invention.

DESCRIPTION OF THE REFERENCE NUMERALS

100: Tuner 102: Demodulator

104: demultiplexer 106: program information decoder

108: program information database 110:

112: A / V decoder 114: Thumbnail extracting unit

116: storage unit 118: OSD unit

120:

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a method and apparatus for reproducing a recorded material, and more particularly to a method and apparatus for reproducing a recorded material using a thumbnail.

In general, a PVR (Personal Video Recorder) is different from a VCR (Video Cassette Recorder) which stores a video signal on a magnetic tape, and stores data such as a HDD (Hard Disk Drive) And is a digital recording / reproducing device for recording and reproducing video data on a medium.

A digital video recording and reproducing apparatus such as the PVR stores and reproduces digital video signals. Therefore, various trick play functions such as time-shift and instant replay during watching live broadcast as well as recording and playback functions can be provided by using the properties of the digital image.

Also, as the storage technology developed, the capacity of the storage medium increased greatly, and the amount of images that can be recorded increased.

It is difficult for a user to find and play back an image to be watched among the images stored in the storage medium by merely listing the list of the recorded images while the amount of the image that can be recorded is increased as described above.

Accordingly, it is necessary to improve the accessibility of a vast amount of digital image data stored in the storage medium, and to enable a user to distinguish a large number of images stored in the storage medium.

Further, there is a need for a function of searching a desired image among the images stored in the storage medium and reproducing a desired portion.

It is an object of the present invention to provide a method and an apparatus for reproducing a recording using a thumbnail so that a user can easily select and reproduce a desired image.

According to an aspect of the present invention, there is provided a recorded picture reproducing apparatus comprising: a thumbnail extracting unit for extracting thumbnails from image data; a storage unit for storing the image data and the extracted thumbnails; An OSD unit that implements a recording list screen that displays at least one thumbnail for each image data, and a controller that extracts a thumbnail from the image data and controls to implement the recording list screen.

According to another aspect of the present invention, there is provided a method for reproducing a recorded content, comprising: extracting a thumbnail from image data and storing the same together with the image data; displaying a recording list screen displaying at least one thumbnail for each stored image data using the thumbnail; Editing the playlist using the thumbnail displayed on the recording list screen, and displaying the stored image data on the screen in accordance with the edited playlist.

Other objects, features and advantages of the present invention will become apparent from the detailed description of the embodiments with reference to the accompanying drawings.

In addition, although the term used in the present invention is selected as a general term that is widely used at present, in some cases, there is a term arbitrarily selected by the applicant. In this case, the meaning is described in detail in the description of the present invention. It is to be understood that the present invention should be grasped as a meaning of a term other than a name.

The operation of the recording and reproducing apparatus and method according to the present invention will now be described in detail with reference to the accompanying drawings.

1 is a block diagram schematically showing the structure of a recording material reproducing apparatus according to an embodiment of the present invention.

The playback apparatus includes a tuner 100, a demodulator 102, a demultiplexer 104, a program information decoder 106, a program information database 108, a controller 110, an A / V decoder 112, A nail extracting unit 114, a storage unit 116, an OSD unit 118, a display unit 120, and a memory 122.

The tuner 100 receives a broadcast signal of a specific channel, and transmits the received broadcast signal to the demodulation unit 102. The demodulator 102 demodulates the received broadcast signal to obtain a Moving Picture Experts Group (MPEG) stream.

The demodulator 102 transmits the stream to the demultiplexer 104.

The demultiplexer 104 demultiplexes the stream under the control of the controller 110 and transmits the demultiplexed data to an appropriate decoder. The demultiplexer 104 transmits audio and video data among the demultiplexed data to the A / V decoder 112, and transmits data related to the program information to the program information decoder 106.

(Program Specific Information) information data, PSIB (Program and System Information Protocol) information data of ATSC (Advanced Television Systems committee), SI (Service Information) information data of DVB (Digital Video Broadcasting) .

The program information database 108 stores and manages the program information parsed by the program information decoder 106. And can inform the user of various information of the program using the stored program information.

The A / V decoder 112 decodes the audio and video data received from the demultiplexer 104. The audio data decoded by the A / V decoder 112 is supplied to the user through a speaker (not shown), and the video data is provided to the user through the display unit 120.

The control unit 110 controls the storage unit 116 to store a program requested by the user among the received programs. The storage unit 116 uses a storage medium such as an HDD. The memory 122 stores data necessary for various controls.

A thumbnail extractor 114 extracts thumbnails of a reduced form from the original video from the decoded video data in the A / V decoder 112.

That is, the thumbnail extraction unit 114 extracts a thumbnail from the video data of the program to which the user has input the save command under the control of the controller 110. [

There are various methods for extracting the thumbnail. For example, there is a method of periodically detecting a thumbnail at a predetermined time interval for a specific pixel type (I picture, etc.) in the video data, or detecting a thumbnail when a scene is switched.

The thumbnail extraction method may be preset in the thumbnail extraction unit 114 or may be selected and set by the user among various methods.

The thumbnail extracting unit 114 stores the metadata about the thumbnail in the storage unit 116 together with the thumbnail extracted from the video data. The metadata includes information on the thumbnail. For example, the meta data includes information on a position at which the thumbnail is extracted from the image data.

Accordingly, the storage unit 116 stores video data of a program selected by the user, thumbnails corresponding to the recordings, metadata, and the like.

In addition to storing the video data of the broadcast program received through the tuner as described above, the video data may be received from a separate external input interface (not shown) and stored in the storage unit 116.

When the externally input image data is stored in the storage unit 116, the A / V decoder 112 extracts thumbnails from the decoded video data, and stores the extracted thumbnails in the storage unit 116.

If the externally inputted image data is not an MPEG stream format, a separate MPEG encoding process for converting the input image data into an MPEG stream format is further needed. In this case, an MPEG encoder (not shown) is further provided to encode the input image data.

In order to check the image data stored in the storage unit 116, that is, a recording, the user inputs a command for requesting a recording list using a main menu or a remote controller.

FIG. 2 is a diagram illustrating a menu including confirmation of a recording list according to an exemplary embodiment of the present invention. Referring to FIG.

The above-described menu is implemented in the OSD (On Screen Display) unit 118 under the control of the controller 110. The implemented menu is displayed on the display unit 120.

When the user inputs a command for confirming the recording list using the menu, a list of recordings is displayed on the screen by using the thumbnail stored in the storage unit 116. [

FIG. 3 is a view showing a recording list screen using a thumbnail according to an embodiment of the present invention.

In the recording list screen, the list of each program unit is listed vertically, and the contents of each program are listed in a horizontal direction.

For example, each 'TEST' image and a news image vertically positioned in FIG. 3 are thumbnails of each recorded program unit. Among the recorded programs, the horizontally located thumbnails of the activated news video are thumbnails extracted from the news.

The time indicated below each thumbnail extracted from the news indicates the time zone in which the thumbnail was extracted from the news image. For example, in the case of '00: 05', it means that the thumbnail is extracted at the time when five minutes have elapsed from the start of the recording of the news video.

When there are many thumbnails extracted from the news, it is difficult to represent all thumbnails extracted on one screen. Accordingly, only a certain number of thumbnails are displayed on the screen, and the remaining thumbnails can be retrieved by using the direction keys or the like provided on the remote controller or the playback apparatus.

In the case of the recordings other than the active recordings as shown in FIG. 3, the representative thumbnails of the recordings are not displayed on the screen. The representative thumbnail may use a thumbnail or the like extracted first from the recording.

When the user inputs the right direction key or the like of the remote controller at the position of the active thumbnail 300 among the thumbnails extracted from the news image, all the thumbnails extracted from the news are moved to the left one by one.

Accordingly, the thumbnail 310 extracted from '00: 17' in the case of FIG. 3 moves to the position where the activated thumbnail is located. Then, the thumbnail extracted after '01: 00' appears on the right side of the thumbnail extracted from '01: 00', and the thumbnail extracted to '00: 00' disappears to the left side of the screen.

On the contrary, when the user inputs the left direction key or the like of the remote controller at the position of the activated thumbnail 300 among the thumbnails extracted from the news image, all the thumbnails extracted from the news are shifted rightward one by one.

When a thumbnail extracted from one activated recording is searched as described above, the thumbnail position or thumbnail content of a 'TEST' recording other than the thumbnail of the activated recording does not change.

When the user inputs the upward direction key of the remote controller at the position of the thumbnail 300 of the news image which is active among the stored recordings, the list of the recordings moves downward one by one.

For example, in FIG. 3, a representative thumbnail of the 'TEST' recording directly above the news image is moved to a place where the activated thumbnail is located. 3, a representative thumbnail for the previous recording is displayed on the representative thumbnail of the 'TEST' recording, and the representative thumbnail of the 'TEST' recording at the bottom in FIG. 3 disappears to the bottom of the screen .

Since other recordings other than the activated recordings are not displayed on the screen other than the representative thumbnails, only the representative thumbnails are displayed on the screen of the recordings other than the 'TEST' recorded on the news image activated by the direction key input .

Therefore, in the case of the news image of FIG. 3, only representative thumbnails of the news image are displayed on the screen, and remaining thumbnails extracted from the news image are not displayed on the screen.

In the case of a 'TEST' recording directly above the news image, the extracted thumbnails are displayed horizontally on the screen.

On the other hand, when the user inputs the downward direction key of the remote controller at the position of the thumbnail 300 of the news image activated among the stored recordings, the list of the recordings moves upward one by one.

The recording list screen may display information about the recordings together with a thumbnail of recordings on the screen.

In the information window 320 of FIG. 3, information on the activated recordings in the recording list or information of thumbnails activated among the thumbnails of the recordings is displayed.

The information of the recorded material or the information of the activated thumbnail uses the information stored in the program information database 108 or the information of the metadata stored together with the extracted thumbnail.

The information displayed on the information window 320 is not limited to information such as a title, an image content, a broadcast time, a running time, and a viewing rating of the recorder shown in FIG. 3, and may include information such as the total length of the recordings, And various information of the same recordings.

The recording list screen shown in FIG. 3 is implemented in the OSD unit 118 using the recordings, thumbnails, and meta data stored in the storage unit 116 under the control of the controller 110. FIG.

When the information window 320 is displayed on the recording list screen together with the program related information stored in the program information database 108 or the metadata of the thumbnail stored in the storage unit 116, (118) in a screen together with the recording list.

The recording list screen implemented by the OSD unit 118 is provided to the user through the display unit 120. [

Using the recording list screen, the user can edit and play the playlist of the recording to be viewed.

FIG. 4 is a diagram illustrating a screen for editing a playlist using a thumbnail according to an embodiment of the present invention. Referring to FIG.

The user can select a recording to be viewed on the recording list screen shown in FIG. 3 and edit the play list. Further, it is also possible to edit a playlist by selecting only a portion to be viewed from among the recordings.

4, the user selects a recording to be viewed from the recording list using the thumbnail, using the up and down keys on the remote controller. When the thumbnails extracted from the activated recordings are displayed on the screen horizontally, the user selects a thumbnail to be activated using the left and right keys of the remote control.

The user selects and activates a desired thumbnail and inputs a command to register the thumbnail in the play list. The command is input using a specific key of the remote controller or a specific key of the reproducing apparatus.

5 is a diagram illustrating a menu for registering a playlist according to an embodiment of the present invention.

When a user inputs a command to register a thumbnail, the menu shown in FIG. 5 is displayed on the screen in the form of a pop-up menu on the activated thumbnail. Then, a recorder play list window 400 for displaying a thumbnail registered by the user in the play list is displayed on the screen as shown in FIG.

The menu for registering the thumbnail and the playlist window 400 are implemented in the OSD unit 118 under the control of the controller 110 and displayed on the screen.

If the user selects 'thumbnail registration' in the thumbnail registration menu, the activated thumbnail is registered in the recording list. When a thumbnail is registered through the 'thumbnail registration', the thumbnail is included in the playlist from the registered thumbnail to the end of the corresponding recording.

When 'start playback' is selected from the menu, the activated thumbnail is registered at the playback start position. When 'Play End' is selected from the menu, the activated thumbnail is registered at the playback end position.

Accordingly, by using the 'playback start' and the 'playback end', only a part to be watched in the recording can be registered and edited in the play list.

For example, a thumbnail 300 extracted from a news image at '00: 05' is selected and registered as a 'playback start' position. A thumbnail 330 extracted at a position '01: 00 ' Is registered to the 'Playback end' position, the playback is started from the position of '00: 05' to the position of '01: 00' of the stored news image at the time of playing the playlist.

If only the thumbnail of 'Start playback' is registered and the thumbnail of 'End of playback' is not registered, the thumbnail of the end of the recording is included in the playlist. If only the thumbnail of 'Play end' is registered and thumbnail of 'Play start' is not registered, the thumbnail of the 'Play end' is included in the play list from the beginning of the corresponding record.

The 'delete thumbnail' is used to cancel the registration of the thumbnail registered through the menu.

Through the above process, the thumbnails of the recordings registered in the playlist are displayed in the playlist playlist window 400.

A thumbnail registered at the reproduction start position in the recording picture list window 400 is displayed at the upper part, and a thumbnail registered at the reproduction end position is displayed below the reproduction start position thumbnail.

In addition, the recordings registered in the recorder playlist window 400 are reproduced from the recordings registered on the left side and in the order of the recordings registered on the right side.

Thumbnails displayed in the upper part of the thumbnails divided up and down in the recorder playlist window 400 of FIG. 4 indicate the playback start position of each corresponding record, and the thumbnails displayed at the lower part indicate the playback end position of each corresponding record.

That is, in the case of a news image registered in the recorder playlist, when a playlist play command is input, a news image is reproduced from the position of the thumbnail displayed at the top to the position of the thumbnail displayed immediately below.

When the reproduction is completed up to the thumbnail displayed at the reproduction end position of the news video, the recording is reproduced from the thumbnail position of the next recording immediately displayed on the upper right side to the position of the thumbnail displayed immediately below the thumbnail.

The control unit 110 stores information about the playlist in the memory 122 and controls the playlist to be played according to the playlist stored in the memory 122 if the user has a playlist play command.

The control unit 110 controls the storage unit 116 to read the data of the recordings registered in the playlist. Then, the data is decoded by the A / V decoder 112 and displayed on the display unit 120.

When searching for the reproduction start position and the reproduction end position from the recording data stored in the storage unit 116, the position information included in the metadata of the thumbnail is used.

6 is a diagram showing a progress bar indicating a reproduction situation as an embodiment according to the present invention.

When the user inputs a command to reproduce the playlist after registering the thumbnail in the playlist as described above, the registered recordings are sequentially reproduced.

Reads and decodes the data of the recordings stored in the storage unit 116 under the control of the control unit 110, and displays the decoded data on the display unit 120.

At this time, a progress bar as shown in FIG. 6 is displayed on the screen so that the user can know the reproduction progress of the play list.

When the progress bar is used, a position indicating bar indicating a current playback position is moved to search for a desired position among the recordings registered in the play list, and can play back from that position.

The progress bar does not display on the screen unless the user inputs a command to request the display of the progress bar. When the user inputs a command for requesting the progress bar, the progress bar is displayed on the screen while displaying the recording of the play list on the screen as shown in FIG.

FIG. 7 is a diagram illustrating a screen in which a progress bar is implemented according to an embodiment of the present invention.

The progress bar indicates the playback progress status such as the playback time of the entire playlist, the current elapsed time, the current playback position, and the like. In addition, the progress bar can display thumbnails of recorded contents registered in the play list.

The thumbnails of the recordings registered in the playlist are displayed on the progress bar as shown in FIG.

When the position occupied by the registered recordings in the progress bar is identified, it is possible to distinguish the positions occupied by the registered recordings by using a dotted line as shown in FIG. 6, or a different color may be assigned to each of the registered recordings, .

8 is a flowchart illustrating a process of editing a playlist using a thumbnail according to an embodiment of the present invention.

And stores the received broadcast program data or externally input video data in the storage unit 116 according to a user's save command. A thumbnail is extracted from the received broadcast program or input image data and stored (S810).

The extraction of the thumbnails may be performed periodically at intervals of a predetermined time, or may be extracted when the scenes are switched.

When the user inputs a command for requesting display of the recording list (S820), the recording list is displayed on the screen using the extracted thumbnail (S830).

The user searches through the recording list using the thumbnail and selects thumbnails of the recordings to be viewed, and edits the playlist in operation S840.

When a thumbnail is selected and registered from several recordings through the playlist editing, the recordings registered in the playlist can be continuously played back.

When the user finishes editing the play list and inputs a play command, the user sequentially plays the recordings registered in the play list and displays it on the screen (S850).

A progress bar indicating the reproduction status of the play list can be displayed on the screen according to a user's request.

It is to be understood that the invention is not limited to the above-described embodiments, but is capable of modification by those skilled in the art to which the invention pertains, and such modifications fall within the scope of the invention .

As described above, according to the recording and reproducing apparatus and method of the present invention, it is possible to provide a list of recordings using a thumbnail and to edit a playlist, thereby making it possible to conveniently search and reproduce a video .

Claims (21)

A thumbnail extracting unit for extracting a thumbnail from the image data; A storage unit for storing the image data and the extracted thumbnails; An OSD unit for implementing a recording list screen for displaying at least one thumbnail for each stored video data using the stored thumbnail; And And a controller for extracting a thumbnail from the image data and controlling to implement the recording list screen, The recording list screen displays one representative thumbnail for each stored image data, and the activated image data among the stored image data displays at least one thumbnail extracted from the image data, and a representative thumbnail of the stored image data And the thumbnails of the activated image data are horizontally arranged. The method according to claim 1, Further comprising: a program information database for storing information on the image of the image data. 3. The method of claim 2, And an information window is implemented on the recording list screen by using the information on the image. 3. The method of claim 2, Wherein the information about the image includes at least one of a title, a content, a broadcasting time, a running time, a viewing rating, and a number of extracted thumbnails. The method according to claim 1, Further comprising: a memory for storing information on the recording list. The method according to claim 1, The image data may include: Wherein the video data is video data of a broadcast program or external input video data. The method according to claim 1, Wherein the thumbnail extracting unit comprises: And extracts thumbnails at predetermined time intervals. The method according to claim 1, Wherein the thumbnail extracting unit comprises: And extracts a thumbnail when a scene of the image is switched. delete delete The method according to claim 1, And a representative thumbnail of the image data to be activated is selected by using the up and down direction keys. The method according to claim 1, And selects a desired thumbnail among the thumbnails of the activated image data using the left and right direction keys. A thumbnail extracting unit for extracting a thumbnail from the image data; A storage unit for storing the image data and the extracted thumbnails; An OSD unit for implementing a recording list screen for displaying at least one thumbnail for each stored video data using the stored thumbnail; And And a controller for extracting a thumbnail from the image data and controlling to implement the recording list screen, Wherein the plurality of recordings included in the edited playlist are continuously reproduced in accordance with a predetermined order, the playlist including a plurality of recordings is edited using the thumbnails displayed on the record list screen, Device. 14. The method of claim 13, Wherein the thumbnail displayed on the recording list screen is one of a playback start position and a playback end position of a thumbnail selected from the thumbnails displayed on the recording list screen. 14. The method of claim 13, When playing the edited playlist, And displays the progress bar indicating the reproduction status on the screen while displaying the image data registered in the reproduction list on the screen. 16. The method of claim 15, Wherein the progress bar divides and displays sections occupied by a plurality of recordings included in the playlist. 16. The method of claim 15, And displays a corresponding thumbnail of the image data registered in the playlist on the progress bar. Extracting a thumbnail from the image data and storing the thumbnail together with the image data; And And displaying a recording list screen displaying at least one thumbnail for each stored video data using the thumbnail, The recording list screen displays one representative thumbnail for each stored image data, and the activated image data among the stored image data displays at least one thumbnail extracted from the image data, and a representative thumbnail of the stored image data And the thumbnails of the activated image data are horizontally arranged. Extracting a thumbnail from the image data and storing the thumbnail together with the image data; Displaying a recording list screen displaying at least one thumbnail for each stored video data using the thumbnail; Editing a playlist including a plurality of recordings using thumbnails displayed on the record list screen; And And continuously reproducing a plurality of recordings included in the edited playlist in a predetermined order. 20. The method of claim 19, And displaying a progress bar indicating a reproduction status on a screen in response to a user's request. 21. The method of claim 20, Wherein the progress bar divides and displays a section occupied by each of the plurality of recordings included in the playlist.

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