Monday, February 14, 2005

Mean shift

How to Calculate the Mean Shift Algorithm
1. Choose a search window size.
2. Choose the initial location of the search window.
3. Compute the mean location in the search window.
4. Center the search window at the mean location computed in Step 3.
5. Repeat Steps 3 and 4 until convergence (or until the mean location moves less than a preset threshold).

How to Calculate the Continuously Adaptive Mean Shift Algorithm
1. Choose the initial location of the search window.
2. Mean Shift as above (one or many iterations); store the zeroth moment.
3. Set the search window size equal to a function of the zeroth moment found in Step 2.
4. Repeat Steps 2 and 3 until convergence (mean location moves less than a preset threshold).
One paper

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