System and method for semantic trick play

• US 20100195975A1
• Filed: 06/10/2009
• Published: 08/05/2010
• Est. Priority Date: 02/02/2009
• Status: Active Grant

• Current Assignee: VideoLabs, Inc.
• Original Assignee: Porto Technology, LLC (Concert Technology Corporation)
• Inventors: Walsh, Richard J., Issa, Alfredo C., Kandekar, Kunal
• Granted Patent: US 9,183,881 B2
• Time in Patent Office: Days
• US Class Current: 386/343
• CPC Class Codes: G11B 27/005 Reproducing at a different information rate from the information rate of recording for television signals H04N5/783
• CPC Class Codes: H04N 21/214 Specialised server platform, e.g. server located in an airplane, hotel, hospital arrangements specially adapted for local area broadcast systems H04H20/61
• CPC Class Codes: H04N 21/435 Processing of additional data, e.g. decrypting of additional data, reconstructing software from modules extracted from the transport stream
• CPC Class Codes: H04N 21/47217 for controlling playback functions for recorded or on-demand content, e.g. using progress bars, mode or play-point indicators or bookmarks specific graphical features in visual interfaces H04N21/4312
• CPC Class Codes: H04N 21/84 Generation or processing of descriptive data, e.g. content descriptors systems specially adapted for using meta-information in broadcast systems H04H60/73
• CPC Class Codes: H04N 5/783 Adaptations for reproducing at a rate different from the recording rate
• CPC Class Codes: H04N 9/79 Processing of colour television signals in connection with recording

Abstract

A semantic based trick play method and system in a media player is provided in which a semantic trick play command is received from a user while the user is experiencing a current content of a media item. Metadata is detected with respect to a current playback position of the media item, and at least one further playback position is determined in the current content of the media item or a related content in another media item. The further playback position is semantically related to the metadata of the current playback position. Playback is then moved to the at least one further playback position, so that the user experiences a media content of the at least one further playback position.

Claims

1. A method of semantic trick play in a media player, comprising:

receiving a semantic trick play command during playback of a current content of a media item;

detecting metadata with respect to a current playback position of the media item;

determining at least one further playback position in the current content of the media item or a related content in another media item, the further playback position being semantically related to the metadata of the current playback position; and

moving playback to the at least one further playback position, so that a media content of the at least one further playback position is then played back by the media player.

2. The method of claim 1, wherein the media item comprises a video item.

3. The method of claim 2, wherein the current playback position comprises a first scene in a video episode, and the at least one further playback position comprises a second scene within the video episode, which is semantically and causally linked to the first scene.

4. The method of claim 2, wherein the current playback position comprises a first scene in a first video episode, and the at least one further playback position comprises a second scene within a second video episode, which is semantically and causally linked to the first scene in the first video episode.

5. The method of claim 1, wherein the step of determining the at least one further playback position is carried out based on at least one of:

a user command, semantic relevance, a user context, a user profile, or accessibility of the at least one further playback position.

6. The method of claim 3, wherein the metadata comprises at least one of:

descriptions of a video scene, actual and/or fictional names of characters in a video scene, data structures establishing semantic links between two or more video scenes, or indexes that allow semantic linking and retrieval.

7. The method of claim 3, wherein the step of moving playback to the at least one further playback position comprises semantically rewinding to the second scene.

8. The method of claim 3, wherein the step of moving playback to the at least one further playback position comprises semantically fast forwarding to the second scene.

9. The method of claim 4, wherein the step of moving playback to the at least one further playback position comprises semantically rewinding to the second scene.

10. The method of claim 4, wherein the step of moving playback to the at least one further playback position comprises semantically fast forwarding to the second scene.

11. The method of claim 7, wherein the step of semantically rewinding is initiated in response to a semantic rewind command from an input device.

12. The method of claim 8, wherein the step of semantically fast forwarding is initiated in response to a semantic fast forward command from an input device.

13. The method of claim 9, wherein the step of semantically rewinding is initiated in response to a semantic rewind command from an input device.

14. The method of claim 10, wherein the step of semantically fast forwarding is initiated in response to a semantic fast forward command from an input device.

15. A media system for semantic trick play in a video player, comprising:

means for receiving a semantic trick play command from a user while the user is viewing a current content of a video item;

means for detecting metadata with respect to a current playback position of the video item;

means for determining at least one further playback position in the current content of the video item or a related content in another video item, the further playback position being semantically related to the metadata of the current playback position; and

means for moving playback to the at least one further playback position, so that the user views a video content of the at least one further playback position.

16. The media system of claim 15, wherein the current playback position comprises a first scene in a video episode, and the at least one further playback position comprises a second scene within the video episode, which is semantically and causally linked to the first scene.

17. The media system of claim 15, wherein the current playback position comprises a first scene in a first video episode, and the at least one further playback position comprises a second scene within a second video episode, which is semantically and causally linked to the first scene in the first video episode.

18. The media system of claim 16, wherein the means for moving playback to the at least one further playback position semantically rewinds the video episode to the second scene.

19. The media system of claim 16, wherein the means for moving playback to the at least one further playback position semantically fast forwards the video episode to the second scene.

20. The media system of claim 17, wherein the means for moving playback to the at least one further playback position semantically rewinds to the second scene within the second video episode.

21. The media system of claim 17, wherein the means for moving playback to the at least one further playback position semantically fast forwards to the second scene within the second video episode.

22. A computer readable medium comprising software for instructing a media system to:

receive a semantic trick play command from a user while the user is experiencing a current content of a media item;

detect metadata with respect to a current playback position of the media item;

determine at least one further playback position in the current content of the media item or a related content in another media item, the further playback position being semantically related to the metadata of the current playback position; and

move playback to the at least one further playback position, so that the user experiences a media content of the at least one further playback position.

23. A media system for semantic trick play, comprising:

a media player which detects information regarding a currently viewed first scene of a video content based on a current playback location;

a content semantic module which receives the information regarding the currently viewed first video scene and returns to the media player a reference to a second scene within the video content and which is semantically and causally linked to the currently viewed first scene;

a content server which receives a request from the media player and then returns to the media player the second scene which is semantically and causally linked to the first scene; and

a display device which displays the video content;

wherein the media player plays back the second scene on the display device.

24. The media system of claim 23, wherein the media player semantically rewinds the video content to the second scene.

25. The media system of claim 23, wherein the media player semantically fast forwards the video content to the second scene.

26. The media system of claim 24, further comprising an input device having a semantic rewind button, wherein the media device semantically rewinds the video content to the second scene when a user presses the semantic rewind button.

27. The media system of claim 25, further comprising an input device having a semantic fast forward button, wherein the media device semantically fast forwards the video content to the second scene when a user presses the semantic fast forward button.