Interpolation of video and audio digital data

Details Interpolation of video and audio digital data Interpolation of video and audio digital data

2005-09-06

2005-09-06

Ngo, Chuong D. (Department: 2193)

Electrical computers: arithmetic processing and calculating

Electrical digital calculating computer

Particular function performed

C708S313000

Reexamination Certificate

active

06941331

ABSTRACT:
In the process of interpolation of video and/or audio digital data Sn, an interpolated value is chosen depending on whether or not an edge is detected. The edge detection is performed as follows. Let L=|S2n−S2n−2|, C=|S2n+2−S2n|, and R=|S2n+4−S2n+2|. An edge is detected when R>9(C+L) or L>9(C+R). A predictor P2n+1=K1S2n+K2S2n+2provides the interpolated value for S2n+1when an edge is detected, where K1=kL/(kL+kR), K2=kR/(kL+kR), where kL=1/(1+L), kR=1/(1+R) or kL=d2n+1,2n+2/(1+L) and kR=d2n,2n+1/(1+R). A different predictor (e.g. a cubic predictor) is used when no edge is detected. Other embodiments are also provided.

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