For David Millier

Today a lot of RF signal process is performed with a slow rolloff anti-aliasing filter with linear delay characteristics to reduce distortion or intersymbol interference in digital communications.  That is followed by a linear phase sharp cut off digital low pass filter and a decimation in sample rate.

That would be the clear best solution to AA filters in digital cameras since the LiNb filters used have very poor characteristics.  However, today that is not feasible.  When the sensor MP count gets into the 100's of MP that would be a feasible approach.

Part of the problem is the lack of robust filters in the visible specturm.

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Truman
www.pbase.com/tprevatt