H - Electricity – 04 – B
Patent
H - Electricity
04
B
H04B 15/00 (2006.01) G06F 17/15 (2006.01) G06T 5/00 (2006.01)
Patent
CA 2046073
ABSTRACT Apparatus and method are described for restoring convolution degraded signals such as blurred images produced by defocused cameras and moving objects. The degraded signal is first processed by a noise reduction means to reduce noise. Then various derivatives of the degraded signal are computed. Each derivative thus computed is multiplied by a corre- sponding weight parameter to give a weighted derivative. All the weighted derivatives are then summed to obtain a restored signal. The weight parameters themselves are computed based on the moments of the convolution kernel. The apparatus of the present invention comprises a noise reduction means, a weight parameter computation means, a multiplication means, and a summation means. The computations involved in the method of the present invention are local in nature and do not involve computing Fourier transforms. Hence the method and the apparatus of the present invention are efficient and less expensive than conventional methods and apparatuses.
Smart & Biggar
The Research Foundation Of State University Of New York
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