Method for deriving an objective sharpness metric

Details Method for deriving an objective sharpness metric Method for deriving an objective sharpness metric

2006-10-10

2006-10-10

Tran, Trang (Department: 2622)

Television

Image signal processing circuitry specific to television

Transition or edge sharpeners

C348S628000, C348S629000, C348S192000, C382S263000, C382S266000

Reexamination Certificate

active

07119854

ABSTRACT:
A method is provided for deriving an objective sharpness metric for objectively determining the level of image sharpness of many and unspecific images having different degrees of sharpness. The method for deriving the objective sharpness metric utilizes sub-band frequency information and false edge information for both an original video sequence and a sharpened sequence to be scored.

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patent: 1365355 (2003-11-01), None
patent: 50-040756 (1982-06-01), None
Jaspers and de With, “A Generic 2D Sharpness Enhancement Algorithm For Luminance Signals”, IPA97, pp. 269-273, Conference Publication No. 443, Jul. 1997.
Hentschel et al., “Noise Measurement In Video Images”, International Conference On Consumer Electronics (ICCE) 2000, Digest Of Technical Papers, pp. 56-57.

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