Related Experiment Video
Updated: May 29, 2026

13:51
Cross-Modal Multivariate Pattern Analysis
Published on: November 9, 2011
An empirical evaluation of generalized cooccurrence matrices.
L S Davis1, M Clearman, J K Aggarwal
1Department of Computer Sciences, University of Texas at Austin, Austin, TX 78712.
IEEE Transactions on Pattern Analysis and Machine Intelligence
|August 27, 2011
Summary
This study compares generalized cooccurrence matrix (GCM) tools for texture analysis. GCM effectively captures texture features like pixel intensity, edges, and extended edges using various classifiers.
Area of Science:
- Image analysis
- Computer vision
- Pattern recognition
Background:
- Texture analysis is crucial for image interpretation.
- Generalized Cooccurrence Matrix (GCM) offers a flexible framework for texture characterization.
- Traditional cooccurrence methods are limited in capturing complex texture properties.
Purpose of the Study:
- To comparatively evaluate generalized cooccurrence matrix (GCM) based texture analysis tools.
- To assess the efficacy of GCM in analyzing diverse texture features.
- To investigate the performance of GCM across different classification algorithms.
Main Methods:
- Implementation of Generalized Cooccurrence Matrix (GCM) for texture feature extraction.
- Analysis of three texture feature types: pixel-intensity, edge-pixel, and extended-edges.
- Evaluation using three experimental setups: nearest neighbor classifier, linear discriminant classifier, and Bhattacharyya distance.
Main Results:
- GCM successfully represents shape, size, and spatial arrangement of texture features.
- Comparative performance analysis across different classifiers and feature types.
- Demonstration of GCM's versatility in texture analysis tasks.
Conclusions:
- Generalized cooccurrence matrix (GCM) provides a robust method for texture analysis.
- The GCM framework is adaptable to various texture features and classification approaches.
- This study highlights the potential of GCM in advancing image analysis and pattern recognition.
More Related Videos
Related Concept Videos
Contingency Table
A contingency table provides a way of portraying data that can facilitate calculating probabilities. It is a method of displaying a frequency distribution as a table with rows and columns to show how two variables may be dependent (contingent) upon each other; The table helps determine conditional probabilities quite quickly and can help systematically organize, analyze and quantify data. The table displays sample values concerning two variables that may be dependent or contingent on one...
Wilcoxon Signed-Ranks Test for Matched Pairs
The Wilcoxon signed-rank test for matched pairs evaluates the null hypothesis by combining the ranks of differences with their signs. It essentially tests whether the median of the differences in a population of matched pairs is zero. Since the test incorporates more information than the sign test, it generally yields more trustable conclusions. This test also does not require the data to follow a normal distribution, but two conditions must be met for it to be applicable: (1) the data must...
Multiple Comparison Tests
Multiple comparison test, abbreviated as MCT, is a post hoc analysis generally performed after comparing multiple samples with one or more tests. An MCT will help identify a significantly different sample among multiple samples or a factor among multiple factors.
It would be easy to compare two samples using a significance alpha level of 0.05. In other words, there is only one sample pair to be compared. However, it would be difficult to identify a significantly different sample if the number...
It would be easy to compare two samples using a significance alpha level of 0.05. In other words, there is only one sample pair to be compared. However, it would be difficult to identify a significantly different sample if the number...
Kendall's Coefficient of Concordance
Kendall's Coefficient of Concordance (W), also known as Kendall's W, is a non-parametric statistical measure used to assess the agreement or concordance between multiple raters or judges when they rank a set of items. It is often used when you have ordinal data (ranks) and you want to see if there is consistency or consensus among the raters. It is widely applied in research areas such as psychology, medicine, and social sciences, where multiple judges are asked to rank or rate subjects or...
Correlation of Experimental Data
Dimensional analysis simplifies complex physical problems and guides experimental investigations, but it does not provide complete solutions. It identifies the dimensionless groups that influence a phenomenon, but experimental data is needed to establish the specific relationships and validate theoretical predictions.
For example, a spherical particle moving through a viscous fluid experiences drag. Dimensional analysis shows that the drag force depends on the particle's diameter, velocity, and...
For example, a spherical particle moving through a viscous fluid experiences drag. Dimensional analysis shows that the drag force depends on the particle's diameter, velocity, and...
Expected Frequencies in Goodness-of-Fit Tests
A goodness-of-fit test is conducted to determine whether the observed frequency values are statistically similar to the frequencies expected for the dataset. Suppose the expected frequencies for a dataset are equal such as when predicting the frequency of any number appearing when casting a die. In that case, the expected frequency is the ratio of the total number of observations (n) to the number of categories (k).

