Color texture morphology

Date

1999-06-23

Author

Tari, S

Metadata

Show full item record

This work is licensed under a Creative Commons Attribution-NonCommercial-NoDerivatives 4.0 International License.

Item Usage Stats

155
views

0
downloads

The paper presents a computational model to extract local symmetry axes corresponding to the areas of homogeneous texture in an image. The approach is to construct an energy functional whose minimizer is a special distance function which attains its maxima at the boundaries between different texture regions and decays away from texture boundaries. Local symmetry axes are extracted from this distance function. The method extends to color texture images. Texture homogeneity is measured using the filter responses of a set of Gabor filters which are derived from dilation and rotation of a single Gabor function.

Subject Keywords

Nonlinear PDEs, Gabor wavelets, Local symmetry axis, Coupled equations

URI

https://hdl.handle.net/11511/64163

Collections

Department of Engineering Sciences, Conference / Seminar

Suggestions

OpenMETU
Core

Texture segmentation using the mixtures of principal component analyzers Musa, MEM; Duin, RPW; de Ridder, D; Atalay, Mehmet Volkan (2003-01-01) The problem of segmenting an image into several modalities representing different textures can be modelled using Gaussian mixtures. Moreover, texture image patches when translated, rotated or scaled lie in low dimensional subspaces of the high-dimensional space spanned by the grey values. These two aspects make the mixture of local subspace models worth consideration for segmenting this type of images. In recent years a number of mixtures of local PCA models have been proposed. Most of these models require ...
Shape from silhouette using topology-adaptive mesh deformation Yemez, Y.; Sahillioğlu, Yusuf (2009-10-01) We present a computationally efficient and robust shape from silhouette method based on topology-adaptive mesh deformation, which can produce accurate, smooth, and topologically consistent 3D mesh models of complex real objects. The deformation scheme is based on the conventional snake model coupled with local mesh transform operations that control the resolution and uniformity of the deformable mesh. Based on minimum and maximum edge length constraints imposed on the mesh, we describe a fast collision dete...
Color engineering of π-conjugated donor-acceptor systems : the role of donor and acceptor units on the neutral state color Ünal, Gönül; Karasu, Atalay; Department of Physics (2011) In this thesis, we investigate the integrability properties of some evolutionary type nonlinear equations in (1+1)-dimensions both with commutative and non-commutative variables. We construct the recursion operators, based on the Lax representation, for such equations. Finally, we question the notion of integrability for a certain one-component non-commutative equation. [We stress that calculations in this thesis are not original.]
TEXTURE PRESERVING MULTI FRAME SUPER RESOLUTION WITH SPATIALLY VARYING IMAGE PRIOR Turgay, Emre; Akar, Gözde (2012-10-03) This paper proposes a new maximum a posteriori (MAP) based super-resolution (SR) image reconstruction method targeting edges and textures in images. Unlike conventional MAP based SR image reconstruction methods a spatially varying image prior is employed which is updated according to the frequency content of the reconstructed image at each iteration at different locations. Two alternative methods based on discrete cosine transforms (DCT) and Gabor filters are proposed for determining the image prior. The pr...
Coloring 3D symmetry set: perceptual meaning and significance in 3D Tarı, Zehra Sibel (1999-12-01) A computational implementation for assigning perceptual meaning and significance to the points in the symmetry is presented. The coloring scheme allows recovery of the features of interest such as the shape skeletons from the complicated symmetry representation. The method is applicable to arbitrary data including color and multi-modality images. On the computational side, for a 256 × 256 binary image, two minutes on a low-end Pentium machine is enough to compute both the distance function and the colored n...

Citation Formats

S. Tari, “Color texture morphology,” 1999, p. 872, Accessed: 00, 2020. [Online]. Available: https://hdl.handle.net/11511/64163.