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Color channel selection is essential for accurate segmentation of sky and clouds in images obtained from ground-based sky cameras. Most prior works in cloud segmentation use threshold based methods on color channels selected in an ad-hoc…

Computer Vision and Pattern Recognition · Computer Science 2017-03-08 Soumyabrata Dev , Florian M. Savoy , Yee Hui Lee , Stefan Winkler

2D texture maps and 3D voxel arrays are widely used to add rich detail to the surfaces and volumes of rendered scenes, and filtered texture lookups are integral to producing high-quality imagery. We show that filtering textures after…

Graphics · Computer Science 2023-05-16 Marcos Fajardo , Bartlomiej Wronski , Marco Salvi , Matt Pharr

The impressive performance of Convolutional Neural Networks (CNNs) when solving different vision problems is shadowed by their black-box nature and our consequent lack of understanding of the representations they build and how these…

Computer Vision and Pattern Recognition · Computer Science 2019-10-16 Ivet Rafegas , Maria Vanrell , Luis A. Alexandre , Guillem Arias

Spatial and spectral approaches are two major approaches for image processing tasks such as image classification and object recognition. Among many such algorithms, convolutional neural networks (CNNs) have recently achieved significant…

Computer Vision and Pattern Recognition · Computer Science 2018-05-23 Shin Fujieda , Kohei Takayama , Toshiya Hachisuka

Wavelet-based segmentation approaches are widely used for texture segmentation purposes because of their ability to characterize different textures. In this paper, we assess the influence of the chosen wavelet and propose to use the…

Computer Vision and Pattern Recognition · Computer Science 2024-10-28 Yuan Huang , Valentin De Bortoli , Fugen Zhou , Jerome Gilles

Methods based on local image features have recently shown promise for texture classification tasks, especially in the presence of large intra-class variation due to illumination, scale, and viewpoint changes. Inspired by the theories of…

Computer Vision and Pattern Recognition · Computer Science 2018-12-05 Swalpa Kumar Roy , Bhabatosh Chanda , Bidyut B. Chaudhuri , Dipak Kumar Ghosh , Shiv Ram Dubey

We introduce a two-layer wavelet scattering network, for object classification. This scattering transform computes a spatial wavelet transform on the first layer and a new joint wavelet transform along spatial, angular and scale variables…

Computer Vision and Pattern Recognition · Computer Science 2014-03-11 Edouard Oyallon , Stéphane Mallat , Laurent Sifre

Accurate image classification given small amounts of labelled data (few-shot classification) remains an open problem in computer vision. In this work we examine how the known texture bias of Convolutional Neural Networks (CNNs) affects…

Machine Learning · Computer Science 2019-10-21 Sam Ringer , Will Williams , Tom Ash , Remi Francis , David MacLeod

In this paper, we examine several typical texture attributes developed in the image processing community in recent years with respect to their capability of characterizing a migrated seismic volume. These attributes are generated in either…

Computer Vision and Pattern Recognition · Computer Science 2019-01-31 Zhiling Long , Yazeed Alaudah , Muhammad Ali Qureshi , Motaz Al Farraj , Zhen Wang , Asjad Amin , Mohamed Deriche , Ghassan AlRegib

To solve the issue of segmenting rich texture images, a novel detection methods based on the affine invariable principle is proposed. Considering the similarity between the texture areas, we first take the affine transform to get numerous…

Image and Video Processing · Electrical Eng. & Systems 2017-12-27 Jianwei Zhang , Xu Chen , Xuezhong Xiao

Retinal image segmentation plays an important role in automatic disease diagnosis. This task is very challenging because the complex structure and texture information are mixed in a retinal image, and distinguishing the information is…

Image and Video Processing · Electrical Eng. & Systems 2020-08-04 Shihao Zhang , Huazhu Fu , Yanwu Xu , Yanxia Liu , Mingkui Tan

This paper introduces a simple but highly efficient ensemble for robust texture classification, which can effectively deal with translation, scale and changes of significant viewpoint problems. The proposed method first inherits the spirit…

Computer Vision and Pattern Recognition · Computer Science 2012-03-06 Shu Kong , Donghui Wang

Dictionary learning algorithms or supervised deep convolution networks have considerably improved the efficiency of predefined feature representations such as SIFT. We introduce a deep scattering convolution network, with predefined wavelet…

Computer Vision and Pattern Recognition · Computer Science 2015-06-02 Edouard Oyallon , Stéphane Mallat

Coloring is used in wireless networks to improve communication efficiency, mainly in terms of bandwidth, energy and possibly end-to-end delays. In this paper, we define the h-hop node coloring problem, with h any positive integer, adapted…

Networking and Internet Architecture · Computer Science 2012-09-14 Ichrak Amdouni , Pascale Minet , Cédric Adjih

Implicit neural representation (INR) has proven to be accurate and efficient in various domains. In this work, we explore how different neural networks can be designed as a new texture INR, which operates in a continuous manner rather than…

Computer Vision and Pattern Recognition · Computer Science 2026-02-03 Albert Kwok , Zheyuan Hu , Dounia Hammou

In this paper, we explore how to computationally characterize subsurface geological structures presented in seismic volumes using texture attributes. For this purpose, we conduct a comparative study of typical texture attributes presented…

Computer Vision and Pattern Recognition · Computer Science 2018-12-21 Zhiling Long , Yazeed Alaudah , Muhammad Ali Qureshi , Yuting Hu , Zhen Wang , Motaz Alfarraj , Ghassan AlRegib , Asjad Amin , Mohamed Deriche , Suhail Al-Dharrab , Haibin Di

Skin recognition is used in many applications ranging from algorithms for face detection, hand gesture analysis, and to objectionable image filtering. In this work a skin recognition system was developed and tested. While many skin…

Computer Vision and Pattern Recognition · Computer Science 2013-11-26 Nidhal K. El Abbadi , Nazar Dahir , Zaid Abd Alkareem

An essential aspect of texture analysis is the extraction of features that describe the distribution of values in local, spatial regions. We present a localized histogram layer for artificial neural networks. Instead of computing global…

Machine Learning · Computer Science 2021-12-30 Joshua Peeples , Weihuang Xu , Alina Zare

Perceptual quality assessment for synthesized textures is a challenging task. In this paper, we propose a training-free reduced-reference (RR) objective quality assessment method that quantifies the perceived quality of synthesized…

Computer Vision and Pattern Recognition · Computer Science 2018-04-30 S. Alireza Golestaneh , Lina Karam

This paper presents an empirical exploration of the use of capsule networks for text classification. While it has been shown that capsule networks are effective for image classification, their validity in the domain of text has not been…

Computation and Language · Computer Science 2018-08-15 Jaeyoung Kim , Sion Jang , Sungchul Choi , Eunjeong Park