Home

A framework for contrast enhancement by dyadic wavelet analysis

Andrew F. Laine; Sergio Schuler

Title:
A framework for contrast enhancement by dyadic wavelet analysis
Author(s):
Laine, Andrew F.
Schuler, Sergio
Date:
Type:
Articles
Department:
Biomedical Engineering
Permanent URL:
Notes:
Proceedings : 1994 IEEE Computer Society Conference on Computer Vision and Pattern Recognition : June 21-23, 1994, Seattle, Washington (Los Alamitos, Calif. : IEEE Computer Society Press, 1994), pp. 740- 745.
Abstract:
This paper describes a method of pattern recognition targeted for recognizing complex annotations found in paper documents. Our investigation is motivated by the high reliability required for accomplishing autonomous interpretation of maps and engineering drawings. Our approach includes a strategy based on multiscale representations obtained by hexagonal wavelet analysis. A feasibility study is described in which more than 10,000 patterns were recognized with an error rate of 2.06% by a neural network trained using multiscale representations from a class of 52 distinct patterns. We observed a 21-fold reduction in the amount of information needed to represent each pattern for recognition. These results suggest that high reliability is possible at a reduced cost of representation.
Subject(s):
Biomedical engineering
Publisher DOI:
http://dx.doi.org/10.1109/CVPR.1994.323890
Item views:
122
Metadata:
text | xml

In Partnership with the Center for Digital Research and Scholarship at Columbia University Libraries/Information Services | Terms of Use