Patents

U.S. Patent 5,610,653 ("Zoom")
Issued: Mar. 11, 1997
Title: Method And System For Automatically Tracking A Zoomed Video Image.

Abstract:
A video method and system for automatically tracking a viewer defined target within a viewer defined window of a video image as the target moves within the video image by selecting a target within a video, producing an identification of the selected target, defining a window within the video, utilizing the identification to automatically maintain the selected target within the window of the video as the selected target shifts within the video, and transmitting the window of the video.

Claims:

• 1. A method of playing a provided video comprising the steps of:

  • enabling a viewer to select a target for magnification from a provided video;
  • extracting from said video an identification of the selected target;
  • enabling said viewer to select a magnification for said selected target;
  • maintaining, by means of said identification, said selected target within a window of said video as said selected target shifts within said video; and
  • playing said window of said video without altering said video.

• 2. The method of claim 1, wherein said identification of the selected target is responsive to changes in said selected target.
  
  
• 3. The method of claim 1, wherein said selected target is automatically shifted within said window responsive to the position of said selected target being near an edge of said video.
  
  
• 4. The method of claim 1, further comprising: producing a movement of said selected target relative to said window.
  
  
• 5. A method of playing a provided video comprising the steps of:
  
  
  • enabling a viewer to select a target for magnification from a provided video;
  • extracting from said video an identification of the selected target;
  • defining a window within said video;
  • enabling said viewer to define a position of said selected target relative to said window of said video;
  • enabling said viewer to select a magnification for said window;
  • maintaining, by means of said identification and responsive to the defined position of said selected target relative to said window, the selected target within said window of said video as said selected target shifts within said video; and
  • playing said window of said video without altering said video.

• 6. The method of claim 5, wherein said selected target is automatically shifted within said window responsive to the position of said selected target being near an edge of said video.
  
  
• 7. The method of claim 5, wherein said identification of the selected target is responsive to changes in said selected target.
  
  
• 8. The method of claim 5, further comprising: producing, responsive to the defined position of said selected target relative to said window, a movement of said selected target relative to said window.
  
  
• 9. A video system comprising:
  
  
  • selecting means for enabling a viewer to select a target for magnification from a provided video;
  • identifying means for extracting from said video an identification of the selected target;
  • zooming means for enabling said viewer to select a magnification for said selected target;
  • targeting means for maintaining, by means of said identification, said selected target within a window of said video as said selected target shifts within said video; and
  • playing means for playing said window of said video without altering said video.

• 10. The system of claim 9, wherein said windowing means comprises magnifying means for defining a magnification of said window, and a defining means for defining a position of said selected target relative to said window.
  
  
• 11. The system of claim 9, wherein said identification of the selected target is responsive to changes in said selected target.
  
  
• 12. The system of claim 9, wherein said identification means comprises secondary identifying means for producing a secondary identification associated with said selected target.
  
  
• 13. The system of claim 9, wherein said targeting means comprises a variable response means for producing a movement of said selected target relative to said window.
  
  
• 14. The system of claim 9, wherein said zooming means comprises shifting means for automatically shifting said window responsive to the position of said selected target being near an edge of said video.