Video perspective navigation system and method

• US 8,683,067 B2
• Filed: 12/19/2007
• Issued: 03/25/2014
• Est. Priority Date: 12/19/2007
• Status: Active Grant

• Current Assignee: NVIDIA Corporation
• Original Assignee: NVIDIA Corporation
• Inventors: Herz, William S.
• Primary Examiner(s): JACOBS, LASHONDA T
• Application Number:
  US12/004,668
• Publication Number:
  US 20090160933A1
• Time in Patent Office: 2,288 Days
• Field of Search: 709/231, 709/232, 348/43, 348/51, 348/E5.022, 348/E7.063, 348/E7.7, 348/E13.021, 725/100, 725/135, 725/144
• US Class Current: 709/231
• CPC Class Codes: G06T 3/00 Geometric image transformations in the plane of the image
• CPC Class Codes: H04N 5/2628 Alteration of picture size, shape, position or orientation, e.g. zooming, rotation, rolling, perspective, translation

Abstract

A video navigation system and method can be utilized to efficiently and adjustably navigate video content. In one embodiment, a video information control method facilitates efficient video navigation. A video stream is received and video access point selection between multiple access points in said video stream is controlled. The presentation information is forwarded for each of the multiple access points. In one exemplary implementation, the presentation information is forwarded to a display and the information is directed to presenting a main viewing area and navigation areas that present looping video clips or portions of the video stream at time intervals ahead of and behind the video portion being presented in the main viewing area.

Claims

1. A video information control method comprising:

receiving concurrent multi-perspective video stream information;

controlling concurrent multi-perspective video information generation based upon multiple access points associated with different perspectives, said multiple access points corresponding to access points in said concurrent multi-perspective video stream information;

using a processor that includes a variety of graphics features to enable presentation of navigation viewing areas and associated content segments in a variety of configurations including presentations configured to convey intuitive relationships of content segments associated with perspective navigation viewing areas;

forwarding rendering information corresponding to each of said multiple access points.

2. A video information control method of claim 1 wherein said controlling includes creating perspective navigation clip information associated with said video stream based upon selection of said multiple access points.

3. A video information control method of claim 1 wherein said perspective navigation clip information includes video frames and sequence information for enabling navigation of content perspectives.

4. A video information control method of claim 1 wherein said concurrent multi-perspective video stream includes an audio video stream and said controlling comprises:

accessing a compressed version of said concurrent multi-perspective video information; and

decoding said compressed version of said audio video stream to create said information associated with said navigation clip.

5. A video information control method of claim 4 wherein said controlling further comprise simulating differences in perspective associated with each of said concurrent multi-perspective.

6. A video information control method of claim 1 wherein said forwarding includes forwarding information associated with a plurality of said multiple access points for simultaneous presentation of concurrent multiple perspectives.

7. A video information control method of claim 1 wherein said rendering information includes information associated with a main viewing area and a different perspective viewing area.

8. A video information control method of claim 1 wherein said controlling includes automatically creating different perspective clips for navigation viewing areas based upon different viewing perspectives relative to a perspective presented in a current main viewing area.

9. A video information control system comprising:

a processor for controlling video access point selection between multiple concurrent multi-perspective video stream access points associated with different perspectives and organizing navigation clip information, wherein said processor performs texture mapping for mapping decompressed video onto three dimensional objects for three dimensional content navigation of different perspectives;

a memory for storing information, including information for directing said controlling of said video access point selection between multiple video stream access points and organization of said navigation clip information; and

a bus for communicating said information.

10. A video information control system of claim 9 wherein said processor includes multiple source filters where sources are defined as access points to at least one compressed audio video stream.

11. A video information control system of claim 9 wherein said processor performs multiple demultiplex filtering for stripping program streams of its audio video elements for decode and time division multiplexed decompression for establishing multiple navigation clip information associated with different perspectives.

12. A video information control system of claim 9 wherein said processor performs fast decompression context switching.

13. A video information control system of claim 9 wherein said processor performs perspective transition operations including simulation of perspectives between said multiple concurrent multi-perspective video streams associated with different perspectives.

14. A video information control system of claim 9 wherein said processor performs decompression of single intra frame compressed frame and conversion to single frame elements for navigation clip thumbnail generation.

15. A video information control system of claim 9 wherein said processor includes a multi-stream scalar to scale decoded/decompressed video into picture in picture (PIP) windows.

16. A video navigation system comprising:

a processor for controlling video access point selection between multiple video stream access points, wherein said access points are associated with different perspectives, wherein said processor includes a variety of graphics features to enable presentation of navigation viewing areas and associated content segments in a variety of configurations including presentations configured to convey intuitive relationships of content segments associated with perspective navigation viewing areas;

a memory for storing information, including information for directing said controlling of said video access point selection between multiple access points in a video stream; and

a display for presenting said information.

17. A video navigation system of claim 16 wherein said information includes navigation clip information that correspond to said different perspectives.

18. A video navigation system of claim 16 wherein said information includes information associated with a navigation clip carousel presentation, wherein said carousel presentation includes navigation viewing areas corresponding to said different perspectives are organized in a carousel configuration.

19. A video navigation system of claim 16 wherein said information includes information associated with a navigation clip globe presentation, wherein said globe presentation includes navigation viewing areas corresponding to said different perspectives are organized in a globe configuration.