Pulse or digital communications – Bandwidth reduction or expansion – Television or motion video signal
Reexamination Certificate
2008-04-01
2008-04-01
Le, Vu (Department: 2613)
Pulse or digital communications
Bandwidth reduction or expansion
Television or motion video signal
Reexamination Certificate
active
07352814
ABSTRACT:
Artifact detection and counting is enhanced using looping in both the horizontal and vertical direction is enhanced via a reduced bandwidth for accumulation of count values into count table entries. According to an example embodiment of the present invention, first and second loops are made for horizontal and vertical count table entries. Quotient and remainder values of a detected artifact value are used for increasing count table entries in the first looping pass, and the count table entries are increased using the quotient value in the second loop. The table increase in the first loop is limited to the length of the remainder value, and the table increase in the second loop is limited to the length of the row or column in the count table being used. In this manner, latency for additions to the count table and the bandwidth for making the additions are reduced, relative to conventional applications. In addition, each entry into the table can be reduced to one addition.
REFERENCES:
patent: 4885636 (1989-12-01), Sullivan
patent: 5724453 (1998-03-01), Ratnakar et al.
patent: 6266102 (2001-07-01), Azuma et al.
patent: 2001/0026283 (2001-10-01), Yoshida et al.
patent: 0881837 (1998-02-01), None
patent: WO 01 20912 (2001-03-01), None
Wu et al, “A Generalized Block-Edge Impairment Metric for Video Coding”, IEEE Signal Processing Letters, vol. 4, No. 11, pp. 317-320, Nov. 1997.
Lin Chien-Hsin
Yang Chang-Ming
Le Vu
NXP B.V.
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