Method and apparatus for processing video data

Details Method and apparatus for processing video data Method and apparatus for processing video data

2006-11-06

2010-11-16

Couso, Yon (Department: 2624)

Image analysis

Image enhancement or restoration

Image filter

C382S307000

Reexamination Certificate

active

07835584

ABSTRACT:
A video processing device processes pixels in columns. That is, the pixel array is divided into columns, and the video processing device first processes one row of pixels within a first column, then moves on to the next row within that column, and so on until that column is completely processed, and then moves on to the next column, to process the rows of pixels in that column, and so on. When performing a video processing function that calculates an output pixel value as a function of an input pixel value for the pixel of interest, and of input pixel values for one or more adjacent or surrounding pixels, this reduces the requirement for buffer storage of the input pixel values within the processing device, and allows them to be retrieved from an external memory device in an efficient manner.

REFERENCES:
patent: 5469223 (1995-11-01), Kimura
patent: 5671020 (1997-09-01), Law
patent: 7020201 (2006-03-01), Luo et al.
patent: 2006/0061827 (2006-03-01), Moss et al.
Krueger, “Virtex-EM FIR Filter for Video Applications”, www.xilinx.com, Oct. 3, 2000, pp. 1-6, vol. 1.1, XAPP241.

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