Questions tagged [clustering]

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Most efficient way to avoid clustering with FAST ? (for ORB feature extraction)

I am implementing the ORB feature extraction algorithm, and I have my own FAST implementation. As the paper clearly states, there is no measure of "cornerness" in FAST, which is why Harris is used to ...
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1answer
22 views

What Is Meant by Clustering of ICA (Independent Component Analysis) Components?

I'm following the EEGLAB tutorial about STUDY creation and manipulation of the datasets, and came across the concept of clustering of ICA components. I'm not too familiar with processing of ICA ...
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2answers
1k views

Difference Between Clustering and Quantization : Part 2

The Lloyd-Max quantizer is a scalar quantizer which can be seen as a special case of a vector quantizer (VQ) designed with the Linde Buzo Gray (LBG) algorithm. In k-means clustering, we are given a ...
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1answer
1k views

Lloyd Max Quantization and Clustering : Part 1

The Lloyd-Max quantizer is a scalar quantizer which can be seen as a special case of a vector quantizer (VQ) designed with the Linde Buzo Gray (LBG) algorithm. In k-means clustering, we are given a ...
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1answer
102 views

How to Cluster Image Colors Using K Means Clustering in CIE a*b Domain?

I am working on building detection from aerial images using Image Processing in MATLAB. I am doing an image segmentation based on the local homogeneity of image. I want to apply K Means Clustering in ...
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1answer
97 views

Unsupervised Way to Choose K in K-Means Algorithm

There are couple of methods listed here about finding the value of k in k means algorithm. How much sound is each of these procedure when used to find out the value of k in unsupervised manner.
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1answer
267 views

Evaluating clustering result

I am working with phoneme clustering. I have been using $k$-means clustering have done $k$-means on 2 different data: spectrogram vector and MFCCs. I would like to know how I can evaluate the result ...
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1answer
528 views

Phoneme Clustering

My aim is to find cluster phonemes from a wav file. I would like to go through the following steps: I am calculating spectrogram. Calculate energy of each frame. Cluster the frames using k-means ...