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Multi-scale design has been considered in recent image super-resolution (SR) works to explore the hierarchical feature information. Existing multi-scale networks aim to build elaborate blocks or progressive architecture for restoration. In…

Image and Video Processing · Electrical Eng. & Systems 2023-05-04 Yuqing Liu , Xinfeng Zhang , Shanshe Wang , Siwei Ma , Wen Gao

Automatic facial expression analysis is a challenging issue and influenced so many areas such as human computer interaction. Due to the uncertainties of the light intensity and light direction, the face gray shades are uneven and the…

Computer Vision and Pattern Recognition · Computer Science 2015-03-06 Sahar Hooshmand , Ali Jamali Avilaq , Amir Hossein Rezaie

Capturing the essence of a textile image in a robust way is important to retrieve it in a large repository, especially if it has been acquired in the wild (by taking a photo of the textile of interest). In this paper we show that a…

Computer Vision and Pattern Recognition · Computer Science 2019-10-07 Christian Joppi , Marco Godi , Andrea Giachetti , Fabio Pellacini , Marco Cristani

In this paper, a color texture image retrieval framework is proposed based on Shearlet domain modeling using Copula multivariate model. In the proposed framework, Gaussian Copula is used to model the dependencies between different sub-bands…

Computer Vision and Pattern Recognition · Computer Science 2020-08-04 Sadegh Etemad , Maryam Amirmazlaghani

In this article, we develop and investigate a new classifier based on features extracted using spatial depth. Our construction is based on fitting a generalized additive model to the posterior probabilities of the different competing…

Methodology · Statistics 2015-04-16 Subhajit Dutta , Anil K. Ghosh

With the large-scale explosion of images and videos over the internet, efficient hashing methods have been developed to facilitate memory and time efficient retrieval of similar images. However, none of the existing works uses hashing to…

Computer Vision and Pattern Recognition · Computer Science 2019-06-06 Ayan Kumar Bhunia , Perla Sai Raj Kishore , Pranay Mukherjee , Abhirup Das , Partha Pratim Roy

To recognize textures many methods have been developed along the years. However, texture datasets may be hard to be classified due to artefacts such as a variety of scale, illumination and noise. This paper proposes the application of…

Computer Vision and Pattern Recognition · Computer Science 2016-12-21 Mariane Barros Neiva , Antoine Manzanera , Odemir Martinez Bruno

Designing discriminative powerful texture features robust to realistic imaging conditions is a challenging computer vision problem with many applications, including material recognition and analysis of satellite or aerial imagery. In the…

Computer Vision and Pattern Recognition · Computer Science 2018-03-28 Rao Muhammad Anwer , Fahad Shahbaz Khan , Joost van de Weijer , Matthieu Molinier , Jorma Laaksonen

In this paper we propose the use of multiple local binary patterns(LBPs) to effectively classify land use images. We use the UC Merced 21 class land use image dataset. Task is challenging for classification as the dataset contains intra…

Machine Learning · Computer Science 2019-02-12 Harjot Singh Parmar

LBP is a successful hand-crafted feature descriptor in computer vision. However, in the deep learning era, deep neural networks, especially convolutional neural networks (CNNs) can automatically learn powerful task-aware features that are…

Computer Vision and Pattern Recognition · Computer Science 2023-03-16 Zhuo Su , Matti Pietikäinen , Li Liu

Steganography methods in general terms tend to embed more and more secret bits in the cover images. Most of these methods are designed to embed secret information in such a way that the change in the visual quality of the resulting stego…

Multimedia · Computer Science 2021-01-19 Soumendu Chakraborty , Anand Singh Jalal

Face detection is a basic task for expression recognition. The reliability of face detection & face recognition approach has a major role on the performance and usability of the entire system. There are several ways to undergo face…

Computer Vision and Pattern Recognition · Computer Science 2014-05-26 Ms. Drashti H. Bhatt , Mr. Kirit R. Rathod , Mr. Shardul J. Agravat

Texture can be defined as the change of image intensity that forms repetitive patterns, resulting from physical properties of the object's roughness or differences in a reflection on the surface. Considering that texture forms a complex…

Computer Vision and Pattern Recognition · Computer Science 2021-10-06 Steve Tsham Mpinda Ataky , Alessandro Lameiras Koerich

In this paper, we present a novel approach for image retrieval based on extraction of low level features using techniques such as Directional Binary Code, Haar Wavelet transform and Histogram of Oriented Gradients. The DBC texture…

Computer Vision and Pattern Recognition · Computer Science 2015-03-13 Nagaraja S. , Prabhakar C. J.

We propose a novel image sampling method for differentiable image transformation in deep neural networks. The sampling schemes currently used in deep learning, such as Spatial Transformer Networks, rely on bilinear interpolation, which…

Computer Vision and Pattern Recognition · Computer Science 2019-09-11 Wei Jiang , Weiwei Sun , Andrea Tagliasacchi , Eduard Trulls , Kwang Moo Yi

Texture-based studies and designs have been in focus recently. Whisker-based multidimensional surface texture data is missing in the literature. This data is critical for robotics and machine perception algorithms in the classification and…

Signal Processing · Electrical Eng. & Systems 2022-09-09 Prasanna Kumar Routray , Aditya Sanjiv Kanade , Pauline Pounds , Manivannan Muniyandi

Scientists, engineers, biologists, and technology specialists universally leverage image segmentation to extract shape ensembles containing many thousands of curves representing patterns in observations and measurements. These large curve…

Computer Vision and Pattern Recognition · Computer Science 2026-01-09 Zachary Grey , Nicholas Fisher , Andrew Glaws

In recent years, histopathology images have been increasingly used as a diagnostic tool in the medical field. The process of accurately diagnosing a biopsy sample requires significant expertise in the field, and as such can be…

Image and Video Processing · Electrical Eng. & Systems 2019-09-24 Alison K. Cheeseman , Hamid Tizhoosh , Edward R. Vrscay

The local descriptors have been the backbone of most of the computer vision problems. Most of the existing local descriptors are generated over the raw input images. In order to increase the discriminative power of the local descriptors,…

Computer Vision and Pattern Recognition · Computer Science 2018-12-05 Shiv Ram Dubey

In this paper, we propose a new texture analysis method using the deterministic partially self-avoiding walk performed on maps modified with thresholds. In this method, two pixels of the map are neighbors if the Euclidean distance between…

Computer Vision and Pattern Recognition · Computer Science 2016-11-29 Lucas Correia Ribas , Wesley Nunes Gonçalves , Odemir Martinez Bruno