Television – Format conversion
Reexamination Certificate
2008-05-20
2008-05-20
Hsia, Sherrie (Department: 2622)
Television
Format conversion
C348S453000, C348S448000, C348S451000, C348S750000
Reexamination Certificate
active
07375760
ABSTRACT:
A content-dependent scan rate converter with adaptive noise reduction that provides a highly integrated, implementation efficient de-interlacer. By identifying and using redundant information from the image (motion values and edge directions), this scan rate converter is able to perform the tasks of film-mode detection, motion-adaptive scan rate conversion, and content-dependent video noise reduction. Adaptive video noise reduction is incorporated in the process where temporal noise reduction is performed on the still parts of the image, thus preserving high detail spatial information, and data-adaptive spatial noise reduction is performed on the moving parts of the image. A low-pass filter is used in flat fields to smooth out Gaussian noise and a direction-dependent median filter is used in the presence of impulsive noise or an edge. Therefore, the selected spatial filter is optimized for the particular pixel that is being processed to maintain crisp edges.
REFERENCES:
patent: 5398071 (1995-03-01), Gove et al.
patent: 5519451 (1996-05-01), Clatanoff et al.
patent: 5550592 (1996-08-01), Markandey et al.
patent: 5864367 (1999-01-01), Clatanoff et al.
patent: 6124900 (2000-09-01), Clatanoff et al.
patent: 6320620 (2001-11-01), Markandey et al.
patent: 7154556 (2006-12-01), Wang et al.
Fairbanks Clifford D.
Kempf Jeffrey
Skoog Arnold P.
Brady III Wade James
Brill Charles A.
Hsia Sherrie
Telecky , Jr. Frederick J.
Texas Instruments Incorporated
LandOfFree
Content-dependent scan rate converter with adaptive noise... does not yet have a rating. At this time, there are no reviews or comments for this patent.
If you have personal experience with Content-dependent scan rate converter with adaptive noise..., we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Content-dependent scan rate converter with adaptive noise... will most certainly appreciate the feedback.
Profile ID: LFUS-PAI-O-2800569