Title :
A spectral histogram model for textons and texture discrimination
Author :
Liu, Xiuwen ; Wang, DeLiang
Author_Institution :
Dept. of Comput. Sci., Florida State Univ., Tallahassee, FL, USA
Abstract :
Based on a local spatial/frequency representation, the spectral histogram of an image is defined as the marginal distribution of responses from a bank of filters. We propose the spectral histogram as a quantitative definition for textons. The spectral histogram model avoids rectification and spatial pooling, two commonly assumed stages in texture discrimination models. By matching spectral histograms, an arbitrary image can be transformed via statistical sampling to an image with similar textons to the observed. Texture synthesis is employed, to verify the adequacy of the model. Building on the texton definition, we use the χ2-statistic to measure the difference between two spectral histograms, which leads to a texture discrimination model. The performance of the model well matches psychophysical results on a systematic set of texture discrimination data. A quantitative comparison with the Malik-Perona model is given, and the biological plausibility of the model is discussed
Keywords :
image texture; physiological models; visual perception; χ2-statistic; Malik-Perona model; biological plausibility; local spatial/frequency representation; quantitative comparison; spectral histogram model; statistical sampling; textons; texture discrimination; texture synthesis; Biological system modeling; Computer science; Filter bank; Frequency; Histograms; Image sampling; Information science; Nonlinear filters; Psychology; Visual perception;
Conference_Titel :
Neural Networks, 2001. Proceedings. IJCNN '01. International Joint Conference on
Conference_Location :
Washington, DC
Print_ISBN :
0-7803-7044-9
DOI :
10.1109/IJCNN.2001.939511