Method and system for cross-chrominance removal using motion detection

1. A method for video signal processing, the method comprising:

comb filtering a video signal;

defining an output pixel in said comb filtered video signal;

removing a cross-chrominance from said output pixel downstream from said comb filtering; and

limiting said removed cross-chrominance comb filtered video signal based on a spatial chroma average and a maximum cross-chroma parameter.

2. A method for video signal processing, the method comprising:

comb filtering a video signal;

defining an output pixel in said comb filtered video signal;

removing a cross-chrominance from said output pixel downstream from said comb filtering; and

modifying a chroma current motion by a motion modifier parameter and utilizing said modified current chroma motion to determine said cross-chrominance.

3. A method for video signal processing, the method comprising:

comb filtering a video signal;

defining an output pixel in said comb filtered video signal;

removing a cross-chrominance from said output pixel downstream from said comb filtering; and

determining a chroma current motion for said output pixel based on a luma current motion and a chroma current motion offset parameter, when said output pixel is in an absent line.

4. A method for video signal processing, the method comprising:

comb filtering a video signal;

defining an output pixel in said comb filtered video signal;

removing a cross-chrominance from said output pixel downstream from said comb filtering; and

assigning a chroma current motion for a pixel immediately above or below said output pixel to a chroma current motion for said output pixel, when said output pixel is in a present line.

5. A method for video signal processing, the method comprising:

comb filtering a video signal;

defining an output pixel in said comb filtered video signal;

removing a cross-chrominance from said output pixel downstream from said comb filtering; and

filtering a temporal chroma average for a pixel immediately above said output pixel, a temporal chroma average for said output pixel, and a temporal chroma average for a pixel immediately below said output pixel, when said output pixel is in an absent line.

6. A method for video signal processing, the method comprising:

comb filtering a video signal;

defining an output pixel in said comb filtered video signal;

removing a cross-chrominance from said output pixel downstream from said comb filtering; and

filtering a temporal chroma average for said output pixel and a temporal chroma average for a pixel immediately above or immediately below said output pixel, when said output pixel is in a present line.

7. A method for video signal processing, the method comprising:

comb filtering a video signal;

defining an output pixel in said comb filtered video signal;

removing a cross-chrominance from said output pixel downstream from said comb filtering; and

comparing a static chroma to a static chroma threshold parameter to determine if said output pixel is in a static chroma area and to determine a back-off for said output pixel.

8. A method for video signal processing, the method comprising:

comb filtering a video signal;

defining an output pixel in said comb filtered video signal;

removing a cross-chrominance from said output pixel downstream from said comb filtering; and

determining a chroma edge magnitude for said output pixel.

9. A method for video signal processing, the method comprising:

comb filtering a video signal;

defining an output pixel in said comb filtered video signal;

removing a cross-chrominance from said output pixel downstream from said comb filtering; and

reducing a chroma edge magnitude for said output pixel by a back-off.

10. A method for video signal processing, the method comprising:

comb filtering a video signal;

defining an output pixel in said comb filtered video signal;

removing a cross-chrominance from said output pixel downstream from said comb filtering; and

modifying a chroma current motion for said output pixel based on a comparison of a chroma edge magnitude and a motion bias threshold parameter.

11. A machine-readable storage having stored thereon, a computer program having at least one code section for video signal processing, the at least one code section being executable by a machine for causing the machine to perform steps comprising:

comb filtering a video signal;

defining an output pixel in said comb filtered video signal;

removing a cross-chrominance from said output pixel downstream from said comb filtering; and

wherein said at least one code section comprises code for limiting said removed cross-chrominance comb filtered video signal based on a spatial chroma average and a maximum cross-chroma parameter.

12. A machine-readable storage having stored thereon, a computer program having at least one code section for video signal processing, the at least one code section being executable by a machine for causing the machine to perform steps comprising:

comb filtering a video signal;

defining an output pixel in said comb filtered video signal;

removing a cross-chrominance from said output pixel downstream from said comb filtering; and

wherein said at least one code section comprises code for modifying a chroma current motion by a motion modifier parameter and utilizing said modified current chroma motion to determine said cross-chrominance.

13. A machine-readable storage having stored thereon, a computer program having at least one code section for video signal processing, the at least one code section being executable by a machine for causing the machine to perform steps comprising:

comb filtering a video signal;

defining an output pixel in said comb filtered video signal;

removing a cross-chrominance from said output pixel downstream from said comb filtering; and

wherein said at least one code section further comprises code for determining a chroma current motion for said output pixel based on a luma current motion and a chroma current motion offset parameter, when said output pixel is in an absent line.

14. The machine-readable storage having stored thereon, a computer program having at least one code section for video signal processing, the at least one code section being executable by a machine for causing the machine to perform steps comprising:

comb filtering a video signal;

defining an output pixel in said comb filtered video signal;

removing a cross-chrominance from said output pixel downstream from said comb filtering; and

wherein said at least one code section further comprises code for assigning a chroma current motion for a pixel immediately above or below said output pixel to a chroma current motion for said output pixel, when said output pixel is in a present line.

15. A machine-readable storage having stored thereon, a computer program having at least one code section for video signal processing, the at least one code section being executable by a machine for causing the machine to perform steps comprising:

comb filtering a video signal;

defining an output pixel in said comb filtered video signal;

removing a cross-chrominance from said output pixel downstream from said comb filtering; and

wherein said at least one code section further comprises code for filtering a temporal chroma average for a pixel immediately above said output pixel, a temporal chroma average for said output pixel, and a temporal chroma average for a pixel immediately below said output pixel, when said output pixel is in an absent line.

16. A machine-readable storage having stored thereon, a computer program having at least one code section for video signal processing, the at least one code section being executable by a machine for causing the machine to perform steps comprising:

comb filtering a video signal;

defining an output pixel in said comb filtered video signal;

removing a cross-chrominance from said output pixel downstream from said comb filtering; and

wherein said at least one code section further comprises code for filtering a temporal chroma average for said output pixel and a temporal chroma average for a pixel immediately above or immediately below said output pixel, when said output pixel is in a present line.

17. A machine-readable storage having stored thereon, a computer program having at least one code section for video signal processing, the at least one code section being executable by a machine for causing the machine to perform steps comprising:

comb filtering a video signal;

defining an output pixel in said comb filtered video signal;

removing a cross-chrominance from said output pixel downstream from said comb filtering; and

wherein said at least one code section further comprises code for comparing a static chroma to a static chroma threshold parameter to determine if said output pixel is in a static chroma area and to determine a back-off for said output pixel.

18. A machine-readable storage having stored thereon, a computer program having at least one code section for video signal processing, the at least one code section being executable by a machine for causing the machine to perform steps comprising:

comb filtering a video signal;

defining an output pixel in said comb filtered video signal;

removing a cross-chrominance from said output pixel downstream from said comb filtering; and

wherein said at least one code section further comprises code for determining a chroma edge magnitude for said output pixel.

19. A machine-readable storage having stored thereon, a computer program having at least one code section for video signal processing, the at least one code section being executable by a machine for causing the machine to perform steps comprising:

comb filtering a video signal;

defining an output pixel in said comb filtered video signal;

removing a cross-chrominance from said output pixel downstream from said comb filtering; and

wherein said at least one code section further comprises code for reducing a chroma edge magnitude for said output pixel by a back-off.

20. A machine-readable storage having stored thereon, a computer program having at least one code section for video signal processing, the at least one code section being executable by a machine for causing the machine to perform steps comprising:

comb filtering a video signal;

defining an output pixel in said comb filtered video signal;

removing a cross-chrominance from said output pixel downstream from said comb filtering; and

wherein said at least one code section further comprises code for modifying a chroma current motion for said output pixel based on a comparison of a chroma edge magnitude and a motion bias threshold parameter.

21. A system for video signal processing, the system comprising:

a comb filter that comb filters a video signal;

at least one processor that defines an output pixel in said comb filtered video signal;

said at least one processor removes a cross-chrominance from said output pixel downstream from said comb filtering; and

said at least one processor limits said removed cross-chrominance comb filtered video signal based on a spatial chroma average and a maximum cross-chroma parameter.

22. A system for video signal processing, the system comprising:

a comb filter that comb filters a video signal;

at least one processor that defines an output pixel in said comb filtered video signal;

said at least one processor removes a cross-chrominance from said output pixel downstream from said comb filtering; and

said at least one processor modifies a chroma current motion by a motion modifier parameter and utilizes said modified current chroma motion to determine said cross-chrominance.

23. A system for video signal processing, the system comprising:

a comb filter that comb filters a video signal;

at least one processor that defines an output pixel in said comb filtered video signal;

said at least one processor removes a cross-chrominance from said output pixel downstream from said comb filtering; and

said at least one processor determines a chroma current motion for said output pixel based on a luma current motion and a chroma current motion offset parameter, when said output pixel is in an absent line.

24. A system for video signal processing, the system comprising:

a comb filter that comb filters a video signal;

at least one processor that defines an output pixel in said comb filtered video signal;

said at least one processor removes a cross-chrominance from said output pixel downstream from said comb filtering; and

said at least one processor assigns a chroma current motion for a pixel immediately above or below said output pixel to a chroma current motion for said output pixel, when said output pixel is in a present line.

25. A system for video signal processing, the system comprising:

a comb filter that comb filters a video signal;

at least one processor that defines an output pixel in said comb filtered video signal;

said at least one processor removes a cross-chrominance from said output pixel downstream from said comb filtering; and

said at least one processor filters a temporal chroma average for a pixel immediately above said output pixel, a temporal chroma average for said output pixel, and a temporal chroma average for a pixel immediately below said output pixel, when said output pixel is in an absent line.

26. A system for video signal processing, the system comprising:

a comb filter that comb filters a video signal;

at least one processor that defines an output pixel in said comb filtered video signal;

said at least one processor removes a cross-chrominance from said output pixel downstream from said comb filtering; and

said at least one processor filters a temporal chroma average for said output pixel and a temporal chroma average for a pixel immediately above or immediately below said output pixel, when said output pixel is in a present line.

27. A system for video signal processing, the system comprising:

a comb filter that comb filters a video signal;

at least one processor that defines an output pixel in said comb filtered video signal;

said at least one processor removes a cross-chrominance from said output pixel downstream from said comb filtering; and

said at least one processor compares a static chroma to a static chroma threshold parameter to determine if said output pixel is in a static chroma area and to determine a back-off for said output pixel.

28. A system for video signal processing, the system comprising:

a comb filter that comb filters a video signal;

at least one processor that defines an output pixel in said comb filtered video signal;

said at least one processor removes a cross-chrominance from said output pixel downstream from said comb filtering; and

said at least one processor determines a chroma edge magnitude for said output pixel.

29. A system for video signal processing, the system comprising:

a comb filter that comb filters a video signal;

at least one processor that defines an output pixel in said comb filtered video signal;

said at least one processor removes a cross-chrominance from said output pixel downstream from said comb filtering; and

said at least one processor reduces a chroma edge magnitude for said output pixel by a back-off.

30. A system for video signal processing, the system comprising:

a comb filter that comb filters a video signal;

at least one processor that defines an output pixel in said comb filtered video signal;

said at least one processor removes a cross-chrominance from said output pixel downstream from said comb filtering; and

said at least one processor modifies a chroma current motion for said output pixel based on a comparison of a chroma edge magnitude and a motion bias threshold parameter.