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Time-Series Classification (TSC) has attracted a lot of attention in pattern recognition, because wide range of applications from different domains such as finance and health informatics deal with time-series signals. Bag of Features (BoF)…

Computer Vision and Pattern Recognition · Computer Science 2018-03-30 Nima Hatami , Yann Gavet , Johan Debayle

This study is focused on the development of the cortex-like visual object recognition system. We propose a general framework, which consists of three hierarchical levels (modules). These modules functionally correspond to the V1, V4 and IT…

Computer Vision and Pattern Recognition · Computer Science 2011-02-15 Sergey S. Tarasenko

Real-world knowledge is often organized as hierarchies such as product taxonomies, medical ontologies, and label trees, yet learning hierarchical representations is challenging due to asymmetric structure and noisy semantics. We introduce…

Machine Learning · Computer Science 2026-05-04 Sahil Mishra , Srinitish Srinivasan , Sourish Dasgupta , Tanmoy Chakraborty

Feature pyramid has been an efficient method to extract features at different scales. Development over this method mainly focuses on aggregating contextual information at different levels while seldom touching the inter-level correlation in…

Computer Vision and Pattern Recognition · Computer Science 2020-05-08 Xinjiang Wang , Shilong Zhang , Zhuoran Yu , Litong Feng , Wayne Zhang

Document structure extraction has been a widely researched area for decades with recent works performing it as a semantic segmentation task over document images using fully-convolution networks. Such methods are limited by image resolution…

Machine Learning · Computer Science 2021-07-12 Milan Aggarwal , Hiresh Gupta , Mausoom Sarkar , Balaji Krishnamurthy

It is always well believed that parsing an image into constituent visual patterns would be helpful for understanding and representing an image. Nevertheless, there has not been evidence in support of the idea on describing an image with a…

Computer Vision and Pattern Recognition · Computer Science 2019-09-11 Ting Yao , Yingwei Pan , Yehao Li , Tao Mei

Morphologically rich languages accentuate two properties of distributional vector space models: 1) the difficulty of inducing accurate representations for low-frequency word forms; and 2) insensitivity to distinct lexical relations that…

Computation and Language · Computer Science 2017-06-02 Ivan Vulić , Nikola Mrkšić , Roi Reichart , Diarmuid Ó Séaghdha , Steve Young , Anna Korhonen

We propose a novel method for semantic segmentation, the task of labeling each pixel in an image with a semantic class. Our method combines the advantages of the two main competing paradigms. Methods based on region classification offer…

Computer Vision and Pattern Recognition · Computer Science 2016-07-27 Holger Caesar , Jasper Uijlings , Vittorio Ferrari

State-of-the-art two-stage object detectors apply a classifier to a sparse set of object proposals, relying on region-wise features extracted by RoIPool or RoIAlign as inputs. The region-wise features, in spite of aligning well with the…

Computer Vision and Pattern Recognition · Computer Science 2021-09-01 Zhao-Min Chen , Xin Jin , Borui Zhao , Xiu-Shen Wei , Yanwen Guo

The traditional Transformer model encounters challenges with variable-length input sequences, particularly in Hyperspectral Image Classification (HSIC), leading to efficiency and scalability concerns. To overcome this, we propose a…

Computer Vision and Pattern Recognition · Computer Science 2024-09-20 Muhammad Ahmad , Muhammad Hassaan Farooq Butt , Manuel Mazzara , Salvatore Distifano

Facial expression recognition has many potential applications which has attracted the attention of researchers in the last decade. Feature extraction is one important step in expression analysis which contributes toward fast and accurate…

Computer Vision and Pattern Recognition · Computer Science 2015-05-18 S. L. Happy , Aurobinda Routray

Persistence diagrams, combining geometry and topology for an effective shape description used in pattern recognition, have already proven to be an effective tool for shape representation with respect to a certainfiltering function.…

Algebraic Topology · Mathematics 2018-12-26 Alessia Angeli , Massimo Ferri , Ivan Tomba

For polarimetric SAR (PolSAR) image classification, it is a challenge to classify the aggregated terrain types, such as the urban area, into semantic homogenous regions due to sharp bright-dark variations in intensity. The aggregated…

Computer Vision and Pattern Recognition · Computer Science 2015-07-02 Fang Liu , Junfei Shi , Licheng Jiao , Hongying Liu , Shuyuan Yang , Jie Wu , Hongxia Hao , Jialing Yuan

Referring object removal refers to removing the specific object in an image referred by natural language expressions and filling the missing region with reasonable semantics. To address this task, we construct the ComCOCO, a synthetic…

Computer Vision and Pattern Recognition · Computer Science 2024-03-15 Xiangtian Xue , Jiasong Wu , Youyong Kong , Lotfi Senhadji , Huazhong Shu

Vectors are universal mathematical objects that can represent text, images, speech, or a mix of these data modalities. That happens regardless of whether data is represented by hand-crafted features or learnt embeddings. Collect a large…

Data Structures and Algorithms · Computer Science 2024-04-02 Sebastian Bruch

Dictionary learning is a cornerstone of image classification. We set out to address a longstanding challenge in using dictionary learning for classification; that is to simultaneously maximise the discriminability and…

Computer Vision and Pattern Recognition · Computer Science 2020-12-08 Rasool Ameri , Ali Alameer , Saideh Ferdowsi , Kianoush Nazarpour , Vahid Abolghasemi

Text-to-point-cloud localization enables robots to understand spatial positions through natural language descriptions, which is crucial for human-robot collaboration in applications such as autonomous driving and last-mile delivery.…

Computer Vision and Pattern Recognition · Computer Science 2026-04-03 Tianyi Shang , Zhenyu Li

Table structure recognition is a challenging task due to the various structures and complicated cell spanning relations. Previous methods handled the problem starting from elements in different granularities (rows/columns, text regions),…

Computer Vision and Pattern Recognition · Computer Science 2022-04-21 Liang Qiao , Zaisheng Li , Zhanzhan Cheng , Peng Zhang , Shiliang Pu , Yi Niu , Wenqi Ren , Wenming Tan , Fei Wu

The region of entropic vectors is a convex cone that has been shown to be at the core of many fundamental limits for problems in multiterminal data compression, network coding, and multimedia transmission. This cone has been shown to be…

Information Theory · Computer Science 2015-12-11 Yunshu Liu , John MacLaren Walsh

An Important tool in the field topological data analysis is known as persistent Homology (PH) which is used to encode abstract representation of the homology of data at different resolutions in the form of persistence diagram (PD). In this…

Image and Video Processing · Electrical Eng. & Systems 2022-07-13 Aras Asaad , Dashti Ali , Taban Majeed , Rasber Rashid