Real-time two-dimensional filtering of video signals

Details Real-time two-dimensional filtering of video signals Real-time two-dimensional filtering of video signals

1997-07-28

2000-08-29

Rogers, Scott

Image analysis

Image enhancement or restoration

Image filter

382275, 382303, 348241, 358463, G06K 940, G06K 954, H04N 1409, H04N 5217

Patent

active

06111992&

ABSTRACT:
A method and device for real time processing of analog signals, such as video signals, representative of frames of data acquired in row order in a two dimensional field. The incoming signal is processed (for example filtered) by analog means, transposed to column order, processed again by analog means, and transposed back to row order. The transpositions are done by digitizing each frame of the signal, transposing the digital signal, and converting the transposed digital signal back to analog form. The process can be pipelined to be accomplished in real time with only a constant delay of two frames.

REFERENCES:
patent: 5410621 (1995-04-01), Hyatt
patent: 5521857 (1996-05-01), Ni et al.

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