System and method for decoding live audio/video information

• US 7,505,045 B2
• Filed: 02/02/2004
• Issued: 03/17/2009
• Est. Priority Date: 02/02/2004
• Status: Expired due to Fees

• Current Assignee: Adams Platform Pty Limited
• Original Assignee: Adams Platform Pty Limited
• Inventors: Clark, Adam Leslie
• Primary Examiner(s): Sajous; Wesner
• Application Number:
  US10/771,097
• Publication Number:
  US 20050180501A1
• Time in Patent Office: 1,870 Days
• Field of Search: 345/428, 345/581, 345/589, 345600-601, 345/660, 345/547, 345/549, 345/555, 345/567, 345/690, 382162-167, 382232-233, 382251-254, 358515-518, 35842604-4261, 348393-396, 348716-720, 341 50- 51, 341/56, 341/57, 341/106, 707/1, 707/3, 707/100, 708/203
• US Class Current: 345/601
• CPC Class Codes: H04N 19/105 Selection of the reference unit for prediction within a chosen coding or prediction mode, e.g. adaptive choice of position and number of pixels used for prediction
• CPC Class Codes: H04N 19/136 Incoming video signal characteristics or properties
• CPC Class Codes: H04N 19/182 the unit being a pixel
• CPC Class Codes: H04N 19/186 the unit being a colour or a chrominance component
• CPC Class Codes: H04N 19/90 using coding techniques not provided for in groups H04N19/10-H04N19/85, e.g. fractals
• CPC Class Codes: H04N 7/152 Multipoint control units therefor

Abstract

A method and apparatus for decoding, on a pixel-by-pixel basis, audio/video data using a table of encoded pixel parameter values, wherein each pixel is represented by an entry including a dominant pixel color component and by scaling a set of segment reference pixels comprised of segment reference pixel values according to each entry in the table of encoded pixel parameter values to produce decoded pixels comprised of decoded pixel parameter values.

Claims

1. A method, comprising:

a decoder for decoding, on a pixel-by-pixel basis, audio/video data using a table of encoded pixel parameter values, wherein each pixel is represented by an entry in the table, the entry includes a dominant pixel color component, and the table further comprises redundant entries, wherein each one of the redundant entries is decoded by recalling previously decoded pixel parameter values associated with each one of the redundant entries;

a processor for scaling a set of segment reference pixels comprised of segment reference pixel values according to each entry in the table of encoded pixel parameter values to produce decoded pixels comprised of decoded pixel parameter values; and

a display unit for displaying the decoded pixels.

2. The method of claim 1, wherein each set of the segment reference pixels corresponds to an encoded segment of a frame.

3. The method of claim 2, wherein the set of the segment reference pixel values comprises a unique set of color pixels for each encoded segment, wherein each segment reference pixel represents a pixel with a most intense dominant pixel color component for each encoded segment.

4. The method of claim 3, wherein the set of segment reference pixels comprises a representative red pixel, green pixel, blue pixel, and black pixel.

5. The method of claim 1, wherein the table of encoded pixel parameter values further comprises at least one of luminance, chrominance, and color depth.

6. The method of claim 1, wherein the set of the segment reference pixel values further comprises a dominant color pixel value, non-dominant pixel color values, and luminance and chrominance values.

7. The method of claim 6, wherein scaling the set of segment reference pixel values comprises scaling the segment reference pixel'"'"'s dominant color pixel value, non-dominant pixel color values, and luminance and chrominance values.

8. The method of claim 1, wherein the table of encoded pixel parameter values further comprises non-dominant pixel color components.

9. The method of claim 8, wherein the set of segment reference pixels are comprised of full-scale pixel parameter values.

10. The method of claim 9, wherein scaling the set of segment reference pixel values further comprises scaling each of the full-scale pixel parameter values with the each corresponding encoded pixel parameter values.

11. The method of claim 1, further comprising synchronizing audio data associated with the decoded table of encoded pixel parameter values.

12. The method of claim 1, wherein prior to decoding the audio/video data, receiving a file including the table of encoded pixel parameter values and the set of segment reference pixel values.

13. The method of claim 12, wherein the file further comprises a header comprised of video frame information and audio information.

14. The method of claim 13, further comprising processing the file by using the header to determine data locations within the file, including the beginning and end of the table of encoded pixel parameter values and the corresponding segment reference pixel values.

15. The method of claim 1, wherein after scaling the set of segment reference pixel values according to each entry in the table of encoded pixel parameter values, communicating the decoded pixels to a playback device.

16. The method of claim 15, further comprising communicating and synchronizing audio data to the playback device.

17. The method of claim 15, wherein prior to communicating decoded pixel parameter values to the playback device, converting the decoded pixel parameter values to another display format.

18. A decoder to generate, pixel by pixel and segment by segment, a frame of audio/video data based upon a table of encoded pixel parameter values, wherein each pixel is represented by a single color entry in the table, and to scale a representative set of segment reference pixel values according to the table, wherein a segment is a fractional portion of the frame of audio/video data, and wherein the table further comprises redundant entries, wherein each one of the redundant entries in decoded by recalling previously decoded pixel parameter values associated with each one of the redundant entries.

19. A computer readable medium storing a set of instructions that, when executed by a computer, cause the computer to execute a method, the method comprising;

decoding, on a pixel-by-pixel basis, audio/video data using a table of encoded pixel parameter values, wherein each pixel is represented by an entry in the table, the entry includes a dominant pixel color component, and the table further comprises redundant entries, wherein each one of the redundant entries is decoded by recalling previously decoded pixel parameter values associated with each one of the redundant entries; and

scaling a set of segment reference pixels comprised of segment reference pixel values according to each entry in the table of encoded pixel parameter values to produce decoded pixels comprised of decoded pixel parameter values.