System and method for scaling real time video

• US 6,493,036 B1
• Filed: 11/17/1999
• Issued: 12/10/2002
• Est. Priority Date: 11/17/1999
• Status: Expired due to Term

• Current Assignee: CSR Technology Incorporated (Qualcomm, Inc.)
• Original Assignee: TeraLogic, Inc. (Cubic Corporation)
• Inventors: Fernandez, Gustavo A.
• Primary Examiner(s): Hsia, Sherrie
• Application Number:
  US09/440,309
• Time in Patent Office: 1,119 Days
• Field of Search: H04/N.5445, H04/N.545, H04/N.544, H04/N.974, 348/561, 348/448, 348/576, 348/581, 348/565, 348/704, 348/563, 348/564, 348/596, 348/598
• US Class Current: 348/561
• CPC Class Codes: G09G 2340/0414 Vertical resolution change
• CPC Class Codes: G09G 2340/0421 Horizontal resolution change
• CPC Class Codes: G09G 2340/045 Zooming at least part of an image, i.e. enlarging it or shrinking it
• CPC Class Codes: G09G 2340/125 wherein one of the images is motion video
• CPC Class Codes: G09G 5/14 Display of multiple viewports
• CPC Class Codes: H04N 21/4728 for selecting a Region Of Interest [ROI], e.g. for requesting a higher resolution version of a selected region
• CPC Class Codes: H04N 5/14 Picture signal circuitry for video frequency region cameras or camera modules comprising electronic image sensors, or control thereof H04N23/00
• CPC Class Codes: H04N 5/445 for displaying additional information H04N5/50 takes precedence
• CPC Class Codes: H04N 5/45 Picture in picture , e.g. displaying simultaneously another television channel in a region of the screen
• CPC Class Codes: H04N 9/641 Multi-purpose receivers, e.g. for auxiliary information H04N9/642 takes precedence

Abstract

A video processing apparatus comprising: a selection unit which selects a portion of a first image for magnification; and a magnification unit which magnifies a portion of a second image corresponding to the portion of the first image, the second image being a higher resolution image than the first image.

Claims

1. A video processing apparatus comprising:

selection means to select a portion of a first image for magnification; and

magnification means to magnify a portion of a second image corresponding to said portion of said first image, said second image being a higher resolution image than said first image.

2. The video processing apparatus as claimed in claim 1 further comprising:

overlay means to overlay said magnified portion of said second image on said first image.

3. The video processing apparatus as claimed in claim 1 further comprising:

down-conversion means to down-convert said second image to said first image.

4. The video processing apparatus as claimed in claim 1 wherein said second image is an HDTV video image.

5. The video processing apparatus as claimed in claim 1 wherein said first image is a standard definition television image.

6. The video processing apparatus as claimed in claim 1 wherein said selected portion of said first image is adjusted through manipulation of an I/O device.

7. The video processing apparatus as claimed in claim 6 wherein size of said portion is adjusted.

8. The video processing apparatus as claimed in claim 6 wherein magnification level of said portion is adjusted.

9. The video processing apparatus as claimed in claim 6 wherein a position of said portion is adjusted.

10. A video processing apparatus comprising:

a selection unit which selects a portion of a first image for magnification; and

a magnification unit which magnifies a portion of a second image corresponding to said portion of said first image, said second image being a higher resolution image than said first image.

11. The video processing apparatus as claimed in claim 10 further comprising an overlay unit for overlaying said magnified portion of said second image on said first image.

12. The video processing apparatus as claimed in claim 10 further comprising a down-conversion unit for down-converting said second image to said first image.

13. The video processing apparatus as claimed in claim 10 wherein said second image is an HDTV video image.

14. The video processing apparatus as claimed in claim 10 wherein said first image is a standard definition television image.

15. The video processing apparatus as claimed in claim 10 wherein said selection unit adjusts said selected portion of said first image in response to manipulation of an I/O device.

16. The video processing apparatus as claimed in claim 15 wherein said selection unit adjusts the size of said portion.

17. The video processing apparatus as claimed in claim 15 wherein said selection unit adjusts the magnification level of said portion.

18. The video processing apparatus as claimed in claim 15 wherein said selection unit adjusts the overlay position of said portion.

19. A video processing apparatus comprising:

a scaling unit for converting a first video image at a first resolution to a second video image at a second resolution;

a magnification unit for magnifying a portion of said first video image; and

an overlay unit for overlaying said magnified portion of said first video image on said second video image.

20. The video processing apparatus as claimed in claim 19 further comprising:

a selection unit which selects said portion of said first video image for magnification responsive to selection of a corresponding portion of said second video image.

21. The video processing apparatus as claimed in claim 20 wherein said selection of a corresponding portion of said second video image is accomplished in response to a signal from an I/O device.

22. The video processing apparatus as claimed in claim 20 wherein said selection unit modifies said selected portion of said first video image.

23. The video processing apparatus as claimed in claim 22 wherein said selection unit modifies the position of said selected portion of said first video image.

24. The video processing apparatus as claimed in claim 22 wherein said selection unit modifies the magnification level of said selected portion of said first video image.

25. A video processing apparatus comprising:

a scaling unit for converting a first video image at a first resolution to a second video image at a second resolution;

a selection unit for selecting a portion of said second video image; and

an overlay unit for overlaying a portion of said first video image on said second video image, said portion of said first video image corresponding to said selected portion of said second video image.

26. The video processing apparatus as claimed in claim 25 wherein said selection unit selects a portion of said second video image responsive to a signal from an I/O device.

27. The video processing apparatus as claimed in claim 26 wherein said selection unit modifies said selected portion of said first video image.

28. The video processing apparatus as claimed in claim 27 wherein said selection unit modifies the position of said selected portion of said first video image.

29. The video processing apparatus as claimed in claim 27 wherein said selection unit modifies the magnification level of said selected portion of said first video image.