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Audio-visual semantic segmentation (AVSS) represents an extension of the audio-visual segmentation (AVS) task, necessitating a semantic understanding of audio-visual scenes beyond merely identifying sound-emitting objects at the visual…

Computer Vision and Pattern Recognition · Computer Science 2026-03-03 Yujian Lee , Peng Gao , Yongqi Xu , Wentao Fan

Most superpixel algorithms compute a trade-off between spatial and color features at the pixel level. Hence, they may need fine parameter tuning to balance the two measures, and highly fail to group pixels with similar local texture…

Computer Vision and Pattern Recognition · Computer Science 2025-09-18 Remi Giraud , Vinh-Thong Ta , Nicolas Papadakis , Yannick Berthoumieu

Surgical instrument segmentation -- in general a pixel classification task -- is fundamentally crucial for promoting cognitive intelligence in robot-assisted surgery (RAS). However, previous methods are struggling with discriminating…

Computer Vision and Pattern Recognition · Computer Science 2022-02-18 Zixu Zhao , Yueming Jin , Pheng-Ann Heng

Great progress has been made in estimating 3D human pose and shape from images and video by training neural networks to directly regress the parameters of parametric human models like SMPL. However, existing body models have simplified…

Graphics · Computer Science 2025-09-09 Marilyn Keller , Keenon Werling , Soyong Shin , Scott Delp , Sergi Pujades , C. Karen Liu , Michael J. Black

Correctly perceiving micro-expression is difficult since micro-expression is an involuntary, repressed, and subtle facial expression, and efficiently revealing the subtle movement changes and capturing the significant segments in a…

Computer Vision and Pattern Recognition · Computer Science 2020-10-20 Jiateng Liu , Wenming Zheng , Yuan Zong

Skeleton-aware sign language recognition (SLR) has gained popularity due to its ability to remain unaffected by background information and its lower computational requirements. Current methods utilize spatial graph modules and temporal…

Computer Vision and Pattern Recognition · Computer Science 2024-03-20 Lianyu Hu , Liqing Gao , Zekang Liu , Wei Feng

The goal of sign language recognition (SLR) is to help those who are hard of hearing or deaf overcome the communication barrier. Most existing approaches can be typically divided into two lines, i.e., Skeleton-based and RGB-based methods,…

Computer Vision and Pattern Recognition · Computer Science 2024-04-09 Xiaolong Shen , Zhedong Zheng , Yi Yang

As supercomputers continue to grow in scale and capabilities, it is becoming increasingly difficult to isolate processor and system level causes of performance degradation. Over the last several years, a significant number of performance…

Distributed, Parallel, and Cluster Computing · Computer Science 2009-03-03 Hari K. Pyla , Bharath Ramesh , Calvin J. Ribbens , Srinidhi Varadarajan

Spiking Neural Networks (SNNs) are inherently suited for continuous learning due to their event-driven temporal dynamics; however, their application to Class-Incremental Learning (CIL) has been hindered by catastrophic forgetting and the…

Neural and Evolutionary Computing · Computer Science 2026-01-30 Matteo Gianferrari , Omayma Moussadek , Riccardo Salami , Cosimo Fiorini , Lorenzo Tartarini , Daniela Gandolfi , Simone Calderara

Unambiguously identifying molecules in spectra is of fundamental importance for a variety of scientific and industrial uses. Interpreting atmospheric spectra for the remote detection of volatile compounds requires information about the…

Chemical Physics · Physics 2019-11-12 Clara Sousa-Silva , Janusz J Petkowski , Sara Seager

Accurate segmentation of lesions plays a critical role in medical image analysis and diagnosis. Traditional segmentation approaches that rely solely on visual features often struggle with the inherent uncertainty in lesion distribution and…

Image and Video Processing · Electrical Eng. & Systems 2025-04-03 Dandan Shan , Zihan Li , Yunxiang Li , Qingde Li , Jie Tian , Qingqi Hong

This paper strives for self-supervised learning of a feature space suitable for skeleton-based action recognition. Our proposal is built upon learning invariances to input skeleton representations and various skeleton augmentations via a…

Computer Vision and Pattern Recognition · Computer Science 2021-08-10 Fida Mohammad Thoker , Hazel Doughty , Cees G. M. Snoek

Spectral clustering is known as a powerful technique in unsupervised data analysis. The vast majority of approaches to spectral clustering are driven by a single modality, leaving the rich information in multi-modal representations…

Computer Vision and Pattern Recognition · Computer Science 2026-03-17 Bo Peng , Yuanwei Hu , Bo Liu , Ling Chen , Jie Lu , Zhen Fang

Spatial variables can be observed in many different forms, such as regularly sampled random fields (lattice data), point processes, and randomly sampled spatial processes. Joint analysis of such collections of observations is clearly…

Methodology · Statistics 2026-05-20 Jake P. Grainger , Tuomas A. Rajala , David J. Murrell , Sofia C. Olhede

Diffuse speckle contrast analysis (DSCA), also called speckle contrast optical spectroscopy(SCOS), has emerged as a groundbreaking optical imaging technique for tracking dynamic biological processes, including blood flow and tissue…

We describe the concept of splitting spatial frequency perturbations into some kind of pupil planes wavefront sensors. Further to the existing approach of dropping higher spatial frequency to suppress aliasing effects (the so-called spatial…

Multivariate time series data, collected across various fields such as manufacturing and wearable technology, exhibit states at multiple levels of granularity, from coarse-grained system behaviors to fine-grained, detailed events.…

Machine Learning · Computer Science 2025-08-15 Ching Chang , Ming-Chih Lo , Wen-Chih Peng , Tien-Fu Chen

We address the problem of active speaker detection through a new framework, called SPELL, that learns long-range multimodal graphs to encode the inter-modal relationship between audio and visual data. We cast active speaker detection as a…

Computer Vision and Pattern Recognition · Computer Science 2021-12-07 Sourya Roy , Kyle Min , Subarna Tripathi , Tanaya Guha , Somdeb Majumdar

Extracting the spectral representations of the neural processes that underlie spiking activity is key to understanding how the brain rhythms mediate cognitive functions. While spectral estimation of continuous time-series is well studied,…

Information Theory · Computer Science 2020-12-02 Anuththara Rupasinghe , Behtash Babadi

We study the problem of applying spectral clustering to cluster multi-scale data, which is data whose clusters are of various sizes and densities. Traditional spectral clustering techniques discover clusters by processing a similarity…

Machine Learning · Computer Science 2020-06-09 Xiang Li , Ben Kao , Caihua Shan , Dawei Yin , Martin Ester