scispace - formally typeset
Journal ArticleDOI

A Parametric Texture Model Based on Joint Statistics of Complex Wavelet Coefficients

Reads0
Chats0
TLDR
A universal statistical model for texture images in the context of an overcomplete complex wavelet transform is presented, demonstrating the necessity of subgroups of the parameter set by showing examples of texture synthesis that fail when those parameters are removed from the set.
Abstract
We present a universal statistical model for texture images in the context of an overcomplete complex wavelet transform. The model is parameterized by a set of statistics computed on pairs of coefficients corresponding to basis functions at adjacent spatial locations, orientations, and scales. We develop an efficient algorithm for synthesizing random images subject to these constraints, by iteratively projecting onto the set of images satisfying each constraint, and we use this to test the perceptual validity of the model. In particular, we demonstrate the necessity of subgroups of the parameter set by showing examples of texture synthesis that fail when those parameters are removed from the set. We also demonstrate the power of our model by successfully synthesizing examples drawn from a diverse collection of artificial and natural textures.

read more

Content maybe subject to copyright    Report

Citations
More filters
Journal ArticleDOI

Statistics of 2-D DT-CWT Coefficients for a Gaussian Distributed Signal

TL;DR: Simulation studies are carried out showing that the use of the proposed techniques provides improved estimation and detection performance of images in a noisy environment.
Dissertation

Revealing and analyzing imperceptible deviations in images and videos

Neal Wadhwa
TL;DR: In this article, the Fourier transform is used to detect subtle deviations from the ideal models of perfect stillness and perfect straightness in space, which can reveal important information like whether a sleeping baby is breathing normally or whether a house's roof is sagging.
Journal ArticleDOI

Explicit Filterbank Learning for Neural Image Style Transfer and Image Processing

TL;DR: This paper proposes StyleBank, which is composed of multiple convolution filter banks and each filter bank explicitly represents one style, and is the first style transfer network that links back to traditional texton mapping methods, and provides new understanding on neural style transfer.
Proceedings ArticleDOI

How Well Do Computational Features Perceptually Rank Textures? A Comparative Evaluation

TL;DR: This paper compares texture rankings derived by 51 sets of computational features against perceptual texture rankings obtained from a free-grouping experiment with 30 human observers, using a unify evaluation framework to show which feature sets perform better than their counterparts.
Journal ArticleDOI

Robust Spatial Matching for Object Retrieval and Its Parallel Implementation on GPU

TL;DR: Experimental results demonstrate that the novel spatial matching method proposed is more robust and more efficient than previous methods especially when the viewpoints are changed, and the parallel implementation on GPU obtains ten times speedup.
References
More filters
Journal ArticleDOI

A theory for multiresolution signal decomposition: the wavelet representation

TL;DR: In this paper, it is shown that the difference of information between the approximation of a signal at the resolutions 2/sup j+1/ and 2 /sup j/ (where j is an integer) can be extracted by decomposing this signal on a wavelet orthonormal basis of L/sup 2/(R/sup n/), the vector space of measurable, square-integrable n-dimensional functions.
Journal ArticleDOI

Stochastic Relaxation, Gibbs Distributions, and the Bayesian Restoration of Images

TL;DR: The analogy between images and statistical mechanics systems is made and the analogous operation under the posterior distribution yields the maximum a posteriori (MAP) estimate of the image given the degraded observations, creating a highly parallel ``relaxation'' algorithm for MAP estimation.
Journal ArticleDOI

Information Theory and Statistical Mechanics. II

TL;DR: In this article, the authors consider statistical mechanics as a form of statistical inference rather than as a physical theory, and show that the usual computational rules, starting with the determination of the partition function, are an immediate consequence of the maximum-entropy principle.
Journal ArticleDOI

Orthonormal bases of compactly supported wavelets

TL;DR: This work construct orthonormal bases of compactly supported wavelets, with arbitrarily high regularity, by reviewing the concept of multiresolution analysis as well as several algorithms in vision decomposition and reconstruction.
Journal ArticleDOI

Relations between the statistics of natural images and the response properties of cortical cells.

TL;DR: The results obtained with six natural images suggest that the orientation and the spatial-frequency tuning of mammalian simple cells are well suited for coding the information in such images if the goal of the code is to convert higher-order redundancy into first- order redundancy.
Related Papers (5)