Interactive viewing of video

{
  "publication_number": "US2007109324A1",
  "country": "US",
  "kind": "A1",
  "title": "Interactive viewing of video",
  "abstract": "Interactively displaying video includes outputting the video for playback at full resolution, receiving an externally-generated command to enlarge an area of the video while the video is being played, upscaling the area, and outputting the upscaled area for display.",
  "claims": [
    "1. A method of interactively displaying video, the method comprising outputting the video for playback at full resolution, receiving an externally-generated command to enlarge an area of the video while the video is being played at full resolution, upscaling the area, and outputting the upscaled area for playback.",
    "2. The method of claim 1, wherein the video is high definition video.",
    "3. The method of claim 1, wherein the area in a first video frame is upscaled, and wherein the same spatial location in subsequent video frames is upscaled.",
    "4. The method of claim 1, further comprising identifying the area.",
    "5. The method of claim 4, wherein identifying the area includes starting at a default location and panning across the video to the area.",
    "6. The method of claim 5, wherein the upscaling is performed after the panning.",
    "7. The method of claim 5, wherein the upscaling is performed during the panning.",
    "8. The method of claim 4, wherein identifying the area includes analyzing the frame to identify a saliency part of a scene.",
    "9. The method of claim 1, wherein enlarging the area includes upscaling the area about a preset location.",
    "10. The method of claim 1, wherein the video is provided as a bit stream, wherein the bit stream is decoded to produce a video frame, wherein the video frame is upscaled, and wherein the upscaled frame is cropped to the area of interest.",
    "11. The method of claim 1, wherein the video is provided as a bit stream encoded in a scalable format, and wherein only the bit stream corresponding to the area is decoded and upscaled.",
    "12. The method of claim 1, wherein a remote control is used to generate the command.",
    "13. A video system comprising: first means for decoding a video bit stream; and second means for playing back a video at full resolution when normal viewing mode is selected and for enlarging an area of interest in response to externally-generated commands, the commands allowing the second means to identify and upscale an area of interest in the video while the video is being played, the second means outputting the upscaled area for playback.",
    "14. A video system comprising: a playback device having first and second modes of operation, the playback device playing a video at full resolution during the first mode, the second mode entered in response to externally-generated commands, the commands causing the playback device to identify and upscale an area of interest in the video and output the upscaled area for playback.",
    "15. The system of claim 14, wherein the playback device upscales the area of interest in a first video frame and then upscales the same spatial location in subsequent video frames.",
    "16. The system of claim 14, wherein identifying the area of interest includes starting at a default location and panning across the video to the area.",
    "17. The system of claim 16, wherein the playback device performs the upscaling after the panning.",
    "18. The system of claim 16, wherein the playback device performs the upscaling before the panning.",
    "19. The system of claim 14, wherein identifying the area of interest includes analyzing the frame to identify a saliency part of a scene.",
    "20. The system of claim 14, wherein upscaling the area of interest includes upscaling the area about a preset location.",
    "21. The system of claim 14, wherein the video is provided as a bit stream, wherein the bit stream is decoded to produce a video frame, wherein the video frame is upscaled, and wherein the upscaled frame is cropped to the area of interest.",
    "22. The system of claim 14, wherein the video is provided as a bit stream encoded in a scalable format, and wherein only the bit stream corresponding to the area is decoded and upscaled.",
    "23. The system of claim 14, further comprising a remote control unit for generating the commands for enlarging the area of interest in the video.",
    "24. A video remote control unit for causing the area of a video to be enlarged, the unit comprising a housing, means for detecting motion of the housing, means for generating a zoom command, and means, responsive to detected motion and direction, for generating pan commands."
  ],
  "description_excerpt": "Videos on DVDs and VHS cassettes can be viewed interactively, but the options for interactive viewing are somewhat limited. Typically, a viewer can start, stop, pause, fast-forward, and rewind a video.\n\nDigital video recorders and media center computers allow live television feeds to be viewed interactively, but here too, the options for interactive viewing are somewhat limited. Typically, a viewer can pause a live television feed. When a viewer pauses a live feed, the digital video recorder or media center computer stores video to a hard drive. When play is resumed, the video is played from the hard drive.\n\nInteractivity can enhance the viewing experience. Additional interactivity that enhances the viewing experience would be desirable.\n\nAccording to one aspect of the present invention, interactively displaying video includes outputting the video for playback at full resolution, receiving an externally-generated command to enlarge an area of the video while the video is being played at full resolution, upscaling the area, and outputting the upscaled area for playback.\n\nOther aspects and advantages of the present invention will become apparent from the following detailed description, taken in conjunction with the accompanying drawings, illustrating by way of example the principles of the present invention.\n\nFIGS. 1 a and 1 b are illustrations of a system in accordance with an embodiment of the present invention.\n\nFIG. 2 is an illustration of a method in accordance with an embodiment of the present invention.",
  "cpc": [
    "H04N 21/4728",
    "H04N 21/42204"
  ],
  "ipc": [
    "G09G 5/00"
  ],
  "inventors": [
    "Qian Lin"
  ],
  "filing_date": "2005-11-16",
  "publication_date": "2007-05-17",
  "priority_date": "2005-11-16",
  "application_number": "US-28006205-A",
  "family_id": "37906955",
  "cited_by_count": 56,
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}