Parallel implementation of multifilters
نویسندگان
چکیده
A multi lter is a lter with matrix-valued coe cients, and is used in the processing of vector-valued signals, e.g. color images. Convolution becomes a vector sum of matrix-vector multiplication. In this paper, we e ciently implement a multi lter as a parallel combination of scalar lters. Each scalar lter works on one component of the input vector signal, which increases processing speed by the dimension of the vector-valued signal. This means that by using N processors, the throughput is increased by a factor of N while the total memory usage remains unchanged. We also present a frequency-domain analysis of the ltering.
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تاریخ انتشار 2000