The resampling tag has no wiki summary.
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1answer
70 views
How do I convert a filter from Spatial to Fourier domain?
I have a small 2D Gaussian image filter that I am currently applying as a window by convolution. I would like to do this in the Fourier domain as a single multiplication. I would like to convert my ...
3
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1answer
80 views
Explanation of LidarBoost Algorithm?
I am trying to understand the LidarBoost algorithm as explained in this paper (PDF warning).
I don't understand how they take the original depth-images $Y_k$ and transform them into the up-sampled ...
12
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5answers
220 views
What is an algorithm to re-sample from a variable rate to a fixed rate?
I have a sensor that reports its readings with a time stamp and a value. However, it does not generate readings at a fixed rate.
I find the variable rate data difficult to deal with. Most filters ...
3
votes
1answer
59 views
pitch vs playback rate
Let's say I have an audio sample, whose pitch is known to be C4 (don't wanna go in detail here, let's say I just sampled a tuned piano playing the C4 key).
The rules of the game are: I can only ...
8
votes
1answer
85 views
Rotating a 3D image
I've got a 3D image of non-isotropic voxels, to which I'm applying a general rotation. How could I go about determining an appropriate voxel size for the rotated image? I need to minimize loss of ...
2
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4answers
560 views
How can I resample a signal with an arbitrary factor (e.g. 128000Hz to 16000.1Hz) in Matlab?
I need to simulate the sampling of a continuous (fsCtu = 128000Hz), acoustic signal with two microphones that have a slight offset in sampling rate (fsMic1 = 16000, fsMic2 = 16000.1) in Matlab. What ...
8
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3answers
692 views
What are the relative merits of various upsampling schemes?
I recently encountered a DSP system which did some internal upsampling via zero padding. Expecting zero-order-hold, I was surprised to find that a DC signal did not produce a DC output; many ...
