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Feedforward reconstruction is crucial for autonomous driving applications, where rapid scene reconstruction enables efficient utilization of large-scale driving datasets in closed-loop simulation and other downstream tasks, eliminating the…

计算机视觉与模式识别 · 计算机科学 2026-03-23 Zhongrui Yu , Zhao Wang , Yijia Xie , Yida Wang , Xueyang Zhang , Yifei Zhan , Kun Zhan

Action recognition in surveillance video makes our life safer by detecting the criminal events or predicting violent emergencies. However, efficient action recognition is not free of difficulty. First, there are so many action classes in…

计算机视觉与模式识别 · 计算机科学 2017-10-23 Kun Liu , Wu Liu , Huadong Ma , Wenbing Huang , Xiongxiong Dong

In recent years, video anomaly detection has been extensively investigated in both unsupervised and weakly supervised settings to alleviate costly temporal labeling. Despite significant progress, these methods still suffer from…

计算机视觉与模式识别 · 计算机科学 2024-03-13 Huaxin Zhang , Xiang Wang , Xiaohao Xu , Xiaonan Huang , Chuchu Han , Yuehuan Wang , Changxin Gao , Shanjun Zhang , Nong Sang

In recent years, Visual Anomaly Detection (VAD) has gained significant attention due to its ability to identify defects using only normal images during training. Many VAD models work without supervision but are still able to provide visual…

计算机视觉与模式识别 · 计算机科学 2026-03-17 Arianna Stropeni , Valentina Zaccaria , Francesco Borsatti , Davide Dalle Pezze , Manuel Barusco , Gian Antonio Susto

We introduce Dynamic Distinction Learning (DDL) for Video Anomaly Detection, a novel video anomaly detection methodology that combines pseudo-anomalies, dynamic anomaly weighting, and a distinction loss function to improve detection…

计算机视觉与模式识别 · 计算机科学 2024-04-09 Demetris Lappas , Vasileios Argyriou , Dimitrios Makris

Retrieval-Augmented Language Modeling (RALM) by integrating large language models (LLM) with relevant documents from an external corpus is a proven method for enabling the LLM to generate information beyond the scope of its pre-training…

计算与语言 · 计算机科学 2025-06-16 Runheng Liu , Xingchen Xiao , Heyan Huang , Zewen Chi , Zhijing Wu

Active speaker detection (ASD) and virtual cinematography (VC) can significantly improve the remote user experience of a video conference by automatically panning, tilting and zooming of a video conferencing camera: users subjectively rate…

音频与语音处理 · 电气工程与系统科学 2022-05-26 Ross Cutler , Ramin Mehran , Sam Johnson , Cha Zhang , Adam Kirk , Oliver Whyte , Adarsh Kowdle

Logical anomaly detection in industrial inspection remains challenging due to variations in visual appearance (e.g., background clutter, illumination shift, and blur), which often distract vision-centric detectors from identifying…

计算机视觉与模式识别 · 计算机科学 2026-03-17 Hiroto Nakata , Yawen Zou , Shunsuke Sakai , Shun Maeda , Chunzhi Gu , Yijin Wei , Shangce Gao , Chao Zhang

Most existing video anomaly detectors rely solely on RGB frames, which lack the temporal resolution needed to capture abrupt or transient motion cues, key indicators of anomalous events. To address this limitation, we propose Image-Event…

计算机视觉与模式识别 · 计算机科学 2025-05-09 Sungheon Jeong , Jihong Park , Mohsen Imani

Video Anomaly Understanding (VAU) extends traditional Video Anomaly Detection (VAD) by not only localizing anomalies but also describing and reasoning about their context. Existing VAU approaches often rely on fine-tuned multimodal large…

计算机视觉与模式识别 · 计算机科学 2026-01-09 Iñaki Erregue , Kamal Nasrollahi , Sergio Escalera

The current concept of Smart Cities influences urban planners and researchers to provide modern, secured and sustainable infrastructure and give a decent quality of life to its residents. To fulfill this need video surveillance cameras have…

计算机视觉与模式识别 · 计算机科学 2021-08-10 Devashree R. Patrikar , Mayur Rajram Parate

During the past decade, many anomaly detection approaches have been introduced in different fields such as network monitoring, fraud detection, and intrusion detection. However, they require understanding of data pattern and often need a…

机器学习 · 计算机科学 2023-01-11 Ming-Chang Lee , Jia-Chun Lin , Ernst Gunnar Gran

As robotic systems execute increasingly difficult task sequences, so does the number of ways in which they can fail. Video Anomaly Detection (VAD) frameworks typically focus on singular, low-level kinematic or action failures, struggling to…

机器人学 · 计算机科学 2026-03-11 Nerea Gallego , Fernando Salanova , Claudio Mannarano , Cristian Mahulea , Eduardo Montijano

In this paper a pure-attention bottom-up approach, called ViGAT, that utilizes an object detector together with a Vision Transformer (ViT) backbone network to derive object and frame features, and a head network to process these features…

计算机视觉与模式识别 · 计算机科学 2022-11-01 Nikolaos Gkalelis , Dimitrios Daskalakis , Vasileios Mezaris

Automating the analysis of surveillance video footage is of great interest when urban environments or industrial sites are monitored by a large number of cameras. As anomalies are often context-specific, it is hard to predefine events of…

计算机视觉与模式识别 · 计算机科学 2020-11-13 Bo Li , Sam Leroux , Pieter Simoens

Anomaly activities such as robbery, explosion, accidents, etc. need immediate actions for preventing loss of human life and property in real world surveillance systems. Although the recent automation in surveillance systems are capable of…

计算机视觉与模式识别 · 计算机科学 2021-08-23 Snehashis Majhi , Srijan Das , Francois Bremond , Ratnakar Dash , Pankaj Kumar Sa

In vision-enabled autonomous systems such as robots and autonomous cars, video object detection plays a crucial role, and both its speed and accuracy are important factors to provide reliable operation. The key insight we show in this paper…

计算机视觉与模式识别 · 计算机科学 2019-02-11 Ting-Wu Chin , Ruizhou Ding , Diana Marculescu

Video camouflaged object detection (VCOD) is challenging due to dynamic environments. Existing methods face two main issues: (1) SAM-based methods struggle to separate camouflaged object edges due to model freezing, and (2) MLLM-based…

计算机视觉与模式识别 · 计算机科学 2025-09-09 Hua Zhang , Changjiang Luo , Ruoyu Chen

Video anomaly detection (VAD) is currently a challenging task due to the complexity of anomaly as well as the lack of labor-intensive temporal annotations. In this paper, we propose an end-to-end Global Information Guided (GIG) anomaly…

计算机视觉与模式识别 · 计算机科学 2021-04-15 Hui Lv , Chunyan Xu , Zhen Cui

Anomaly detection in crowds enables early rescue response. A plug-and-play smart camera for crowd surveillance has numerous constraints different from typical anomaly detection: the training data cannot be used iteratively; there are no…

计算机视觉与模式识别 · 计算机科学 2020-06-17 Muhammad Umar Karim Khan , Mishal Fatima , Chong-Min Kyung
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