Scanning converter for video display

Details Scanning converter for video display Scanning converter for video display

H - Electricity

04

N

H04N 7/01 (2006.01) H04N 5/44 (2006.01)

Patent

CA 2160030

A method of display upconversion wherein each output field line is interpolated from at least three input field lines from each of at least three input fields. By increasing the field rate by 1.5 (instead of simple field doubling) and by increasing the line rate by 1.5 (instead of simple line doubling) a substantial increase in picture quality can be achieved whilst maintaining data flow rates within manageable limits.

On décrit un procédé de conversion de projection où chaque ligne de trame de sortie est interpolée à partir d'au moins trois lignes de trames d'entrée provenant chacune d'au moins trois trames d'entrée. On peut obtenir une nette amélioration de qualité d'image en multipliant la fréquence de trame par 1,5 (au lieu de pratiquer un simple doublement de trame) et en multipliant la fréquence de ligne par 1,5 (au lieu d'en pratiquer le simple doublement), tout en maintenant les débits de données dans des limites maîtrisables.

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