Elementary cell of a linear filter for image processing

Details Elementary cell of a linear filter for image processing Elementary cell of a linear filter for image processing

2007-03-13

2007-03-13

Couso, Yon J. (Department: 2624)

Image analysis

Image enhancement or restoration

Image filter

C375S350000, C708S316000, C708S318000

Reexamination Certificate

active

10257347

ABSTRACT:
The present invention relates to an elementary cell of a linear filter for image processing, as well as to a corresponding module, element and process. The cell comprises a data circulation output and a calculation output, as well as a main delay line and an auxiliary delay line in parallel. Delay line selection means (MUX4) make it possible to link the input of the cell to the circulation output by way of one or other of the delay lines. The cell also comprises an adder having two inputs which can be linked respectively to the input of the cell and to the output of the main delay line, by calculation selection means (MUX1, MUX2) and a multiplier at the output of the adder, connected to a multiplier coefficients memory. Application to linear filtering for image processing and to random access for motion compensation.

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Jong-Hun Kim et al.,Lowpass Temporal Filter Using Motion Adaptive Spatial Filtering and Its Systolic Realization, Aug. 1992, IEEE Transactions on Consumer Electronics 38, No. 3, pp. 452-459.
Jin Yung Zhang et al.,High Speed Architectures for Two-Dimensional State-Space Recursiv Filtering, Jun. 1990, IEEE Transactions on Circuits and Systems 37, No. 6, New York, pp. 831-836.
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