Motion adaptive upsampling of chroma video signals

Details Motion adaptive upsampling of chroma video signals Motion adaptive upsampling of chroma video signals

2007-02-12

2011-10-04

Hsia, Sherrie (Department: 2422)

Television

Format conversion

Specified chrominance processing

C348S450000, C348S451000

Reexamination Certificate

active

08031267

ABSTRACT:
Upsampling for video signals is described. In particular chroma pixels may be upsampled in a luminance, chrominance signal using motion adaptive approaches. In one example, the operations include selecting an absent chroma pixel of the current frame, developing a spatial candidate value for the absent chroma pixel using pixel values for nearby pixels in the current frame, developing a temporal candidate value for the absent chroma pixel using pixel values for nearby pixels in the previous and subsequent frames, computing a value for the absent chroma pixel by combining the spatial candidate value and the temporal candidate value, and producing an output video frame including the computed absent chroma pixel values.

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