Systems and Methods for Determining and Communicating Correction Information for Video Images

• US 20090109344A1
• Filed: 10/28/2005
• Published: 04/30/2009
• Est. Priority Date: 10/28/2005
• Status: Active Grant

• Current Assignee: InterDigital CE Patent Holdings SAS (InterDigital, Inc.)
• Original Assignee: Thomson Licensing (Vantiva SA)
• Inventors: Zell, Joachim, Yeung, Raymond, Ollivier, Pierre
• Granted Patent: US 9,313,470 B2
• Time in Patent Office: Days
• US Class Current: 348/708
• CPC Class Codes: H04N 9/68 for controlling the amplitude of colour signals, e.g. automatic chroma control circuits H04N9/71, H04N9/73 take precedence; camera processing pipelines for controlling the colour saturation of colour signals H04N23/86

Abstract

A method and system for determining correction information for the universal display of an original video sequence on a plurality of displays includes correcting an original video sequence using a first display, storing correction information related to the correction of the original video sequence using the first display, correcting the original video sequence using a different display, and determining and storing the differences between the correction information related to the correction of the original video sequence using the first display and using a particular, different display. Subsequently and prior to the display of the original video sequence, the original video sequence is corrected using a combination of the stored correction information related to the correction of the original video sequence using the first display and the respective determined differences, if any, related to a particular, different display on which the original video sequence is now to be displayed.

Claims

1. A method for determining correction information for at least two different display types, comprising:

a) generating first correction information for correcting at least one video sequence within a video content file for a first display type;

b) storing the first correction information;

c) generating different correction information for correcting said at least one video sequence for a different one of said at least two different display types;

d) determining and storing differences between the first correction information and the different correction information; and

e) repeating steps c)-d) for each of said at least two different display types.

2. The method of claim 1, wherein prior to the subsequent display of said video content file, said at least one video sequence is corrected using a combination of said first correction information and respective different correction information, if any, related to a particular different one of said at least two different display types on which said video content file is to be displayed.

3. The method of claim 1, wherein correction information is stored in respective look-up tables.

4. The method of claim 3, wherein said look-up tables comprise start and end time codes for corrected video sequences to index respective correction information and to correlate corrections with respective locations in an original video content file.

5. The method of claim 1, wherein said correction information comprises information regarding correction of at least one of a color adjustment, grain changes, and brightness contrast of said at least one video sequence.

6. The method of claim 1, wherein said original video content file and said correction information are stored on a portable media storage device.

7. A method for providing, to a remote location, correction information for the display of a video content file on at least two different display types, comprising:

a) generating first correction information for correcting at least one video sequence within a video content file for a first display type;

b) storing, on a portable media storage device, the first correction information;

c) generating different correction information for correcting said at least one video sequence for a different one of said at least two different display types;

d) determining and storing, on said portable media storage device, differences between the first correction information and the different correction information; and

e) repeating steps c)-d) for each of said at least two different display types;

f) storing, on said portable media storage device, said video content file including said at least one video sequence; and

g) providing said portable media storage device to said remote location for the display of said video content file, wherein prior to the subsequent display of said video content file, said at least one video sequence is corrected using a combination of said first correction information and respective different correction information, if any, related to a particular different one of said at least two different display types on which said video content file is to be displayed.

8. The method of claim 7, wherein said correction information is stored in respective look-up tables on said portable media storage device.

9. The method of claim 7, wherein said portable media storage device comprises at least one of a digital video disk (DVD) and a video cassette.

10. A system for determining correction information for the display of at least one video sequence within a video content file on at least two different display types, comprising:

at least two displays for displaying said video content file; and

a corrector module, in conjunction with inputs from a user, adapted to perform the steps of;

a) generating first correction information for correcting at least one video sequence within a video content file for a first display type;

b) storing the first correction information;

c) generating different correction information for correcting said at least one video sequence for a different one of said at least two different display types;

d) determining and storing differences between the first correction information and the different correction information; and

e) repeating steps c)-d) for each of said at least two different display types.

11. The system of claim 10, further comprising a translation module for translating the correction information into respective lookup tables for storage wherein a respective lookup table and the video content file are combined at playback to provide a corrected video content file on a respective one of said at least two different displays.

12. The system of claim 11, wherein the translation module associates corrected color information for video pixels with time codes for a given sequence for storage in the respective lookup tables.

13. The system of claim 11, wherein the video content file and the respective lookup tables are stored separately on a portable media storage device.

14. The system of claim 13, wherein said portable media storage device comprises a digital video disk (DVD).

15. The system of claim 11, wherein the translation module is provided in at least one of a set top box and a video player.

16. The system of claim 11, wherein the respective lookup tables comprise a plurality of sub-lookup tables, each of which is associated with a different aspect of said at least one video sequence to be corrected.

17. The system of claim 10, wherein said corrector module comprises a video editing tool adapted to perform said correcting steps.

18. The system of claim 10, wherein said correction information comprises information regarding correction of at least one of a color adjustment, grain changes, and brightness contrast of said at least one video sequence.

19. The system of claim 10, further comprising the step of rendering the corrected video sequence on a respective display.

20. A method for providing a corrected video sequence to any of a plurality of display types, comprising the steps of:

maintaining an original video sequence in its original form and separately storing correction information associated with the original video sequence;

translating the original video sequence and the correction information into a corrected video sequence; and

translating the corrected video sequence into any of a plurality of display types by identifying a display type for rendering the corrected video sequence and selecting a display file which adjusts the corrected video sequence for that display type.

21. The method of claim 20, wherein the original form is uncompressed, the video translated is compressed and wherein the correction information includes an algorithm of how to apply correction information the original video sequence, whether coded and/or decoded, before it is actually rendered as an uncompressed corrected video sequence.

22. The method of claim 20, wherein the step of translating the original video sequence and the correction information into a corrected video sequence includes adjusting the original video sequence in accordance with the correction information stored in a lookup table for a corresponding time code range of the original video sequence.

23. The method of claim 20, wherein the step of translating the corrected video sequence into any of a plurality of display types includes providing a lookup table as a display file for each of a plurality of display types and selecting one of the lookup tables for the display type for rendering.

24. A method for determining color correction information for different display types, comprising:

a) determining first correction information for color correcting at least one video sequence within a video content file;

b) storing the first correction information;

c) determining respective correction information for color correcting said at least one video sequence for display on a specific one of said different display types;

d) determining and storing differences between the first correction information and the respective correction information determined for the specific display type; and

e) repeating steps c)-d) for a different display type.

25. The method of claim 24, wherein prior to the display of said video content file on a specific display type, said at least one video sequence is corrected using a combination of said first correction information and the respective correction information determined for said specific display type.

26. The method of claim 24, wherein said first correction information is subtracted from said respective correction information determined for said specific display type to determine resultant correction information for color correcting said at least one video sequence for displaying said video content file on said specific display type.