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Optical coherence tomography (OCT) is a micrometer-scale, volumetric imaging modality that has become a clinical standard in ophthalmology. OCT instruments image by raster-scanning a focused light spot across the retina, acquiring…

Image and Video Processing · Electrical Eng. & Systems 2022-09-16 Stefan Ploner , Siyu Chen , Jungeun Won , Lennart Husvogt , Katharina Breininger , Julia Schottenhamml , James Fujimoto , Andreas Maier

In this paper, we place the atomic action detection problem into a Long-Short Term Context (LSTC) to analyze how the temporal reliance among video signals affect the action detection results. To do this, we decompose the action recognition…

Computer Vision and Pattern Recognition · Computer Science 2021-10-20 Yuxi Li , Boshen Zhang , Jian Li , Yabiao Wang , Weiyao Lin , Chengjie Wang , Jilin Li , Feiyue Huang

Effective processing of video input is essential for the recognition of temporally varying events such as human actions. Motivated by the often distinctive temporal characteristics of actions in either horizontal or vertical direction, we…

Computer Vision and Pattern Recognition · Computer Science 2020-06-24 Alexandros Stergiou , Ronald Poppe

Event cameras are novel bio-inspired sensors that offer advantages over traditional cameras (low latency, high dynamic range, low power, etc.). Optical flow estimation methods that work on packets of events trade off speed for accuracy,…

Computer Vision and Pattern Recognition · Computer Science 2024-03-05 Shintaro Shiba , Yoshimitsu Aoki , Guillermo Gallego

In the domain of audio-visual event perception, which focuses on the temporal localization and classification of events across distinct modalities (audio and visual), existing approaches are constrained by the vocabulary available in their…

Computer Vision and Pattern Recognition · Computer Science 2025-03-24 Eitan Shaar , Ariel Shaulov , Gal Chechik , Lior Wolf

This paper provides an overview of three notable approaches for detecting anomalies in spatio-temporal data. The three review methods are selected from the framework of multivariate statistical process control (SPC), scan statistics, and…

Methodology · Statistics 2023-09-19 Ji Chen

In most modern object detection pipelines, the detection proposals are processed independently given the feature map. Therefore, they overlook the underlying relationships between objects and the surrounding background, which could have…

Computer Vision and Pattern Recognition · Computer Science 2024-12-03 Botao Ren , Botian Xu , Xue Yang , Yifan Pu , Jingyi Wang , Zhidong Deng

This paper presents a new method for anomaly detection in automated systems with time and compute sensitive requirements, such as autonomous driving, with unparalleled efficiency. As systems like autonomous driving become increasingly…

Computer Vision and Pattern Recognition · Computer Science 2025-03-12 Andrew Gao , Jun Liu

We propose a novel approach for aerial video action recognition. Our method is designed for videos captured using UAVs and can run on edge or mobile devices. We present a learning-based approach that uses customized auto zoom to…

Computer Vision and Pattern Recognition · Computer Science 2023-07-20 Xijun Wang , Ruiqi Xian , Tianrui Guan , Celso M. de Melo , Stephen M. Nogar , Aniket Bera , Dinesh Manocha

Semantic Scene Completion (SSC) constitutes a pivotal element in autonomous driving perception systems, tasked with inferring the 3D semantic occupancy of a scene from sensory data. To improve accuracy, prior research has implemented…

Computer Vision and Pattern Recognition · Computer Science 2025-03-18 Ruoyu Wang , Yukai Ma , Yi Yao , Sheng Tao , Haoang Li , Zongzhi Zhu , Yong Liu , Xingxing Zuo

Episodic memory plays a crucial role in various cognitive processes, such as the ability to mentally recall past events. While cognitive science emphasizes the significance of spatial context in the formation and retrieval of episodic…

Machine Learning · Computer Science 2024-03-04 Junmo Cho , Jaesik Yoon , Sungjin Ahn

Audio-visual recognition (AVR) has been considered as a solution for speech recognition tasks when the audio is corrupted, as well as a visual recognition method used for speaker verification in multi-speaker scenarios. The approach of AVR…

Computer Vision and Pattern Recognition · Computer Science 2017-11-01 Amirsina Torfi , Seyed Mehdi Iranmanesh , Nasser M. Nasrabadi , Jeremy Dawson

In this paper, an event-based tracker is presented. Inspired by recent advances in asynchronous processing of individual events, we develop a direct matching scheme that aligns spatial distributions of events at different times. More…

Computer Vision and Pattern Recognition · Computer Science 2024-10-08 Maria Zafeiri , Georgios Evangelidis , Emmanouil Psarakis

Automatic chord recognition (ACR) extracts time-aligned chord labels from music audio recordings. Despite recent advances, ACR still struggles with oversegmentation, data scarcity, and imbalance, especially in recognizing complex chords…

Sound · Computer Science 2026-04-28 Leekyung Kim , Jonghun Park

In this paper, we propose to learn shared semantic space with correlation alignment (${S}^{3}CA$) for multimodal data representations, which aligns nonlinear correlations of multimodal data distributions in deep neural networks designed for…

Information Retrieval · Computer Science 2019-05-23 Zhenguo Yang , Zehang Lin , Peipei Kang , Jianming Lv , Qing Li , Wenyin Liu

Recent top-performing temporal 3D detectors based on Lidars have increasingly adopted region-based paradigms. They first generate coarse proposals, followed by encoding and fusing regional features. However, indiscriminate sampling and…

Computer Vision and Pattern Recognition · Computer Science 2025-03-05 Chenxu Dang , Zaipeng Duan , Pei An , Xinmin Zhang , Xuzhong Hu , Jie Ma

Nowadays, our mobility systems are evolving into the era of intelligent vehicles that aim to improve road safety. Due to their vulnerability, pedestrians are the users who will benefit the most from these developments. However, predicting…

Computer Vision and Pattern Recognition · Computer Science 2022-03-18 Lina Achaji , Thierno Barry , Thibault Fouqueray , Julien Moreau , Francois Aioun , Francois Charpillet

Anomaly detection on time series data is increasingly common across various industrial domains that monitor metrics in order to prevent potential accidents and economic losses. However, a scarcity of labeled data and ambiguous definitions…

Machine Learning · Computer Science 2022-12-29 Lawrence Wong , Dongyu Liu , Laure Berti-Equille , Sarah Alnegheimish , Kalyan Veeramachaneni

In order to unlock the potential of diverse sensors, we investigate a method to transfer knowledge between time-series modalities using a multimodal \textit{temporal} representation space for Human Activity Recognition (HAR). Specifically,…

Computer Vision and Pattern Recognition · Computer Science 2025-07-11 Abhi Kamboj , Anh Duy Nguyen , Minh N. Do

We seek to enable classic processing of continuous ultra-sparse spatiotemporal data generated by event-based sensors with dense machine learning models. We propose a novel hybrid pipeline composed of asynchronous sensing and synchronous…

Computer Vision and Pattern Recognition · Computer Science 2024-07-31 Carmen Martin-Turrero , Maxence Bouvier , Manuel Breitenstein , Pietro Zanuttigh , Vincent Parret