Systems and methods for automatic scale selection in...

Details Systems and methods for automatic scale selection in... Systems and methods for automatic scale selection in...

2006-04-25

2006-04-25

Tran, Phuoc (Department: 2621)

Image analysis

Pattern recognition

Feature extraction

C382S255000, C382S288000

Reexamination Certificate

active

07035465

ABSTRACT:
A system and method for automatic scale selection in real-time image and video processing and computer vision applications. In one aspect, a non-parametric variable bandwidth mean shift technique, which is based on adaptive estimation of a normalized density gradient, is used for detecting one or more modes in the underlying data and clustering the underlying data. In another aspect, a data-driven bandwidth (or scale) selection technique is provided for the variable bandwidth mean shift method, which estimates for each data point the covariance matrix that is the most stable across a plurality of scales. The methods can be used for detecting modes and clustering data for various types of data such as image data, video data speech data, handwriting data, etc.

REFERENCES:
patent: 5507025 (1996-04-01), Rodeffer
patent: 6430430 (2002-08-01), Gosche

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