Adaptive median filters for de-interlacing

Details Adaptive median filters for de-interlacing Adaptive median filters for de-interlacing

2006-10-31

2006-10-31

Yenke, Brian P. (Department: 2622)

Television

Format conversion

Line doublers type

C348S450000, C382S262000

Reexamination Certificate

active

07129988

ABSTRACT:
An adaptive intra-field algorithm to de-interlace video data uses two line memories to implement a median filter that can use multiple data points on adjacent lines of display. In a median-mode, the filter outputs the median of the input data to create the value for a location on the intermediate line and can decrease image blurring. But if examination of the two adjacent pixels on two adjacent scan lines is small, as in the case of a vertical image line, the filter operates as a line average filter, to avoid creating image artifacts.

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