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Low Dimensional Adaptive Texture Feature Vectors From Class Distance and Class Difference Matrices
- Source :
- IEEE Transactions on Medical Imaging. 23:73-84
- Publication Year :
- 2004
- Publisher :
- Institute of Electrical and Electronics Engineers (IEEE), 2004.
-
Abstract
- In many popular texture analysis methods, second or higher order statistics on the relation between pixel gray level values are stored in matrices. A high dimensional vector of predefined, nonadaptive features is then extracted from these matrices. Identifying a few consistently valuable features is important, as it improves classification reliability and enhances our understanding of the phenomena that we are modeling. Whatever sophisticated selection algorithm we use, there is a risk of selecting purely coincidental "good" feature sets, especially if we have a large number of features to choose from and the available data set is limited. In a unified approach to statistical texture feature extraction, we have used class distance and class difference matrices to obtain low dimensional adaptive feature vectors for texture classification. We have applied this approach to four relevant texture analysis methods. The new adaptive features outperformed the classical features when applied to the most difficult set of 45 Brodatz texture pairs. Class distance and difference matrices also clearly illustrated the difference in texture between cell nucleus images from two different prognostic classes of early ovarian cancer. For each of the texture analysis methods, one adaptive feature contained most of the discriminatory power of the method.
- Subjects :
- Surface Properties
Feature vector
Feature extraction
Higher-order statistics
Sensitivity and Specificity
Texture (geology)
Pattern Recognition, Automated
Image texture
Artificial Intelligence
Texture filtering
Image Interpretation, Computer-Assisted
Cluster Analysis
Humans
Electrical and Electronic Engineering
Mathematics
Cell Nucleus
Ovarian Neoplasms
Radiological and Ultrasound Technology
Contextual image classification
Phantoms, Imaging
business.industry
Reproducibility of Results
Pattern recognition
Image Enhancement
Computer Science Applications
Feature (computer vision)
Computer Science::Computer Vision and Pattern Recognition
Female
Artificial intelligence
business
Algorithms
Software
Subjects
Details
- ISSN :
- 02780062
- Volume :
- 23
- Database :
- OpenAIRE
- Journal :
- IEEE Transactions on Medical Imaging
- Accession number :
- edsair.doi.dedup.....91c96c2cf647f7cbb882ea6849f3e70b