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Questions tagged [feature-detection]

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1answer
31 views

Scratch Detection On Noisy Textured Surface

I wish to extract long thin scratches from the noisy background image.I have tried several ways such as stacking smoothed image with input image to remove some of the noisy background patch before ...
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1answer
55 views

How to make series circle shift invariant

I have a series of numbers. They may be integer, floating, or ...
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0answers
72 views

Determine DoG (Difference of Gaussians) extrema from multiple octaves in a scale space

I am attempting to program SIFT in C++ without any libraries(bad idea, should have used matlab). So far, I have computed extrema points from 2 DoG images per octave of a scale space consisting of 5 ...
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2answers
298 views

How to extract features of individual spikes in non-negative signal?

I have data of non-negative (in the sense there's no signal below baseline) spiking waveforms, which are in the form of a 1D array of numbers: Spikes that cross some threshold are considered real ...
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0answers
30 views

Texture detection

I am looking for good methods, preferably parameterless, to detect textured areas in an image. I mean random textures, not regular patterns. The final goal is to discriminate between significant edges ...