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Re: Optimal interpolation [message #31959 is a reply to message #31856]

Wed, 28 August 2002 13:47

Robert Stockwell
Messages: 74
Registered: October 2001

Member

Paul van Delst wrote:
> GB Karas wrote:
>
>> sinc interpolation relies on the following interpolating kernel:
>>
>> sinc(x)=sin(x)/x
>
>
> Why don't you use FFT's to do the interpolation then? You know, FFT the curve in question, zerofill
> (or truncate) the result and FFT back?

If you check out a digital signal processing book on upsampling
or downsampling (or perhaps multirate sampling) you'll see that it
can be the way to go in some cases.
(oppenheimer and schafer frinstance)

Cheers,
bob

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[Message index]

		Optimal interpolation By: Luis on Wed, 21 August 2002 06:47
		Re: Optimal interpolation By: Robert Stockwell on Wed, 28 August 2002 13:47
		Re: Optimal interpolation By: Paul Van Delst[1] on Wed, 28 August 2002 11:19

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