Integrated circuit to process data in multiple color spaces

• US 7,920,210 B2
• Filed: 01/19/2009
• Issued: 04/05/2011
• Est. Priority Date: 09/04/2002
• Status: Expired due to Term

• Current Assignee: F Poszat Hu LLC (Intellectual Ventures LLC)
• Original Assignee: Denace Enterprise Co LLC (Intellectual Ventures LLC)
• Inventors: Chiu, Po Weng, Zhou, Qinggang, Nagakura, Clyde H.
• Primary Examiner(s): Lee; M.
• Application Number:
  US12/356,057
• Publication Number:
  US 20090128699A1
• Time in Patent Office: 806 Days
• Field of Search: 348553-570, 348589-604, 348/714, 345/589, 345/592, 345/603, 345/602, 345/604
• US Class Current: 348/553
• CPC Class Codes: G09G 2310/0229 De-interlacing
• CPC Class Codes: G09G 2320/106 Determination of movement vectors or equivalent parameters within the image
• CPC Class Codes: G09G 2340/0407 Resolution change, inclusive of the use of different resolutions for different screen areas
• CPC Class Codes: G09G 5/363 Graphics controllers
• CPC Class Codes: H04N 5/21 Circuitry for suppressing or minimising disturbance, e.g. moiré or halo
• CPC Class Codes: H04N 9/67 for matrixing camera processing pipelines for matrixing of colour signals H04N23/85

Abstract

An integrated circuit includes display processing components to process pixel data of digital video. The integrated circuit also includes mask-programmable logic integrated with one or more of the display processing components to receive the pixel data in a first color space and at least a second color space, where the mask-programmable logic can further process the pixel data to enhance the digital video.

Claims

1. An integrated circuit, comprising:

display processing components configured to process pixel data of digital video;

mask-programmable logic integrated with one or more of the display processing components, the mask-programmable logic configured to;

receive the pixel data in a first color space format and at least a second color space format that is different than the first color space format; and

apply video enhancement processing to the pixel data to enhance the digital video based on one of the first color space format or the second color space format.

2. The integrated circuit as recited in claim 1, wherein the first color space format is a YCbCr color space format, and wherein the second color space format is a RGB color space format.

3. The integrated circuit as recited in claim 2, wherein the video enhancement processing includes gamma correction and dithering based on the RGB color space format.

4. The integrated circuit as recited in claim 2, wherein the video enhancement processing includes at least one of white level enhancement, black level enhancement, color histogram extension, flesh-tone enhancement, horizontal DLTI (Digital Luminance Transient Improvement), peaking filtering, display control, or DCTI (Digital Chrominance Transient Improvement) based on the YCbCr color space format.

5. The integrated circuit as recited in claim 1, wherein the mask-programmable logic is further configured to select one of the first color space format or the second color space format, and apply the video enhancement processing to the pixel data based on the selected color space format.

6. The integrated circuit as recited in claim 1, wherein the mask-programmable logic is further configured to receive the pixel data to include a pixel from a line of a digital video frame and corresponding pixels from at least two previous consecutive lines of the digital video frame.

7. The integrated circuit as recited in claim 6, wherein the first color space format is a YCbCr color space format, and wherein the video enhancement processing includes 2D noise reduction based on the YCbCr color space format and the pixel data from three consecutive lines of the digital video frame.

8. An integrated circuit, comprising:

display processing components configured to process pixel data of digital video;

mask-programmable logic integrated with one or more of the display processing components, the mask-programmable logic configured to;

receive the pixel data in a selectable one of a first color space format and at least a second color space format that is different than the first color space format;

select one of the first color space format or the second color space format; and

apply video enhancement processing to the pixel data to enhance the digital video based on the selected color space format.

9. The integrated circuit as recited in claim 8, further comprising a multiplexer configured to select the one of the first color space format or the second color space format.

10. The integrated circuit as recited in claim 8, wherein the first color space format is a YCbCr color space format, and wherein the second color space format is a RGB color space format.

11. The integrated circuit as recited in claim 10, wherein the video enhancement processing includes gamma correction and dithering based on the RGB color space format.

12. The integrated circuit as recited in claim 10, wherein the video enhancement processing includes at least one of white level enhancement, black level enhancement, color histogram extension, flesh-tone enhancement, horizontal DLTI (Digital Luminance Transient Improvement), peaking filtering, display control, or DCTI (Digital Chrominance Transient Improvement) based on the YCbCr color space format.

13. The integrated circuit as recited in claim 8, wherein the mask-programmable logic is further configured to receive the pixel data to include a pixel from a line of a digital video frame and corresponding pixels from at least two previous consecutive lines of the digital video frame.

14. The integrated circuit as recited in claim 13, wherein the first color space format is a YCbCr color space format, and wherein the video enhancement processing includes 2D noise reduction based on the YCbCr color space format and the pixel data from three consecutive lines of the digital video frame.

15. A method, comprising:

processing pixel data of digital video utilizing display processing components of an integrated circuit to generate the pixel data in a first color space format and at least a second color space format that is different than the first color space format;

selecting one of the first color space format or the second color space format; and

applying video enhancement processing to the pixel data to enhance the digital video utilizing mask-programmable logic of the integrated circuit, the video enhancement processing based on the selected color space format.

16. The method as recited in claim 15, further comprising outputting enhanced digital video from the mask-programmable logic in the selected color space format.

17. The method as recited in claim 15, wherein the first color space format is a YCbCr color space format, and wherein the second color space format is a RGB color space format.

18. The method as recited in claim 17, wherein the video enhancement processing includes gamma correction and dithering based on the RGB color space format.

19. The method as recited in claim 17, wherein the video enhancement processing includes at least one of white level enhancement, black level enhancement, color histogram extension, flesh-tone enhancement, horizontal DLTI (Digital Luminance Transient Improvement), peaking filtering, display control, or DCTI (Digital Chrominance Transient Improvement) based on the YCbCr color space format.

20. The method as recited in claim 15, wherein the pixel data includes a pixel from a line of a digital video frame and corresponding pixels from at least two previous consecutive lines of the digital video frame.