Pattern recognition with generalized centroids and subcentroids

We propose a class of generalized moment functions (GMFs) that can be used to determine a set of geometric points, namely, generalized centroids (G centroids), within an object. Based on a linear GMF, a mass centroid and its subcentroids can be defined and extracted, which provide information on the...

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Published in:Applied optics (2004) 2005-03, Vol.44 (8), p.1372-1380
Main Authors: Chang, Shoude, Grover, Chander P
Format: Article
Language:English
Subjects:
Algorithms
Artificial Intelligence
Image Enhancement - methods
Image Interpretation, Computer-Assisted - methods
Imaging, Three-Dimensional - methods
Information Storage and Retrieval - methods
Numerical Analysis, Computer-Assisted
Pattern Recognition, Automated - methods
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Grover, Chander P
description We propose a class of generalized moment functions (GMFs) that can be used to determine a set of geometric points, namely, generalized centroids (G centroids), within an object. Based on a linear GMF, a mass centroid and its subcentroids can be defined and extracted, which provide information on the location and orientation of an object. Similar to traditional moment functions, GMFs can also be used to describe the global shape of an object, including symmetry and fullness. However, GMFs, along with G centroids and subcentroids, can further serve to construct a feature vector of an object, which is critical for image registration and invariant pattern recognition. One can extract more distinguishing features from the same object by changing the combination of GMFs. We present results that show simulations of pattern recognition from uniform backgrounds.
doi_str_mv 10.1364/AO.44.001372
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source Optica Publishing Group Journals
subjects Algorithms
Artificial Intelligence
Image Enhancement - methods
Image Interpretation, Computer-Assisted - methods
Imaging, Three-Dimensional - methods
Information Storage and Retrieval - methods
Numerical Analysis, Computer-Assisted
Pattern Recognition, Automated - methods
title Pattern recognition with generalized centroids and subcentroids
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