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Anomaly detection (AD) plays an important role in various real-world applications. Recent advancements in AD, however, are often biased towards industrial inspection, struggle to generalize to broader tasks like semantic anomaly detection…

Computer Vision and Pattern Recognition · Computer Science 2025-09-30 Hangil Park , Yongmin Seo , Tae-Kyun Kim

Object detection is the central issue of intelligent traffic systems, and recent advancements in single-vehicle lidar-based 3D detection indicate that it can provide accurate position information for intelligent agents to make decisions and…

Artificial Intelligence · Computer Science 2023-10-11 Caizhen He , Hai Wang , Long Chen , Tong Luo , Yingfeng Cai

In recent years, current mainstream feature masking distillation methods mainly function by reconstructing selectively masked regions of a student network from the feature maps of a teacher network. In these methods, attention mechanisms…

Computer Vision and Pattern Recognition · Computer Science 2024-07-19 Zhourui Zhang , Jun Li , Zhijian Wu , Jifeng Shen , Jianhua Xu

Bird's-eye-view (BEV) grid is a common representation for the perception of road components, e.g., drivable area, in autonomous driving. Most existing approaches rely on cameras only to perform segmentation in BEV space, which is…

Computer Vision and Pattern Recognition · Computer Science 2022-11-01 Shubhankar Borse , Marvin Klingner , Varun Ravi Kumar , Hong Cai , Abdulaziz Almuzairee , Senthil Yogamani , Fatih Porikli

Masked Autoencoders (MAE) play a pivotal role in learning potent representations, delivering outstanding results across various 3D perception tasks essential for autonomous driving. In real-world driving scenarios, it's commonplace to…

Computer Vision and Pattern Recognition · Computer Science 2024-08-26 Jian Zou , Tianyu Huang , Guanglei Yang , Zhenhua Guo , Tao Luo , Chun-Mei Feng , Wangmeng Zuo

Applying pseudo labeling techniques has been found to be advantageous in semi-supervised 3D object detection (SSOD) in Bird's-Eye-View (BEV) for autonomous driving, particularly where labeled data is limited. In the literature, Exponential…

Computer Vision and Pattern Recognition · Computer Science 2024-12-06 Saheli Hazra , Sudip Das , Rohit Choudhary , Arindam Das , Ganesh Sistu , Ciaran Eising , Ujjwal Bhattacharya

In this study, we aim to predict the plausible future action steps given an observation of the past and study the task of instructional activity anticipation. Unlike previous anticipation tasks that aim at action label prediction, our work…

Computer Vision and Pattern Recognition · Computer Science 2022-01-19 Zhengyuan Yang , Jingen Liu , Jing Huang , Xiaodong He , Tao Mei , Chenliang Xu , Jiebo Luo

Accurate motion understanding of the dynamic objects within the scene in bird's-eye-view (BEV) is critical to ensure a reliable obstacle avoidance system and smooth path planning for autonomous vehicles. However, this task has received…

Computer Vision and Pattern Recognition · Computer Science 2025-03-06 Hiep Truong Cong , Ajay Kumar Sigatapu , Arindam Das , Yashwanth Sharma , Venkatesh Satagopan , Ganesh Sistu , Ciaran Eising

Point cloud segmentation is a fundamental task in 3D scene understanding. Its progress is constrained by the high cost and time required for dense 3D annotations, making labeled samples difficult to obtain. Beyond annotation scarcity,…

Computer Vision and Pattern Recognition · Computer Science 2026-05-29 Thenukan Pathmanathan , Kanchan Keisham , Thangarajah Akilan

The focal point of egocentric video understanding is modelling hand-object interactions. Standard models, e.g. CNNs or Vision Transformers, which receive RGB frames as input perform well. However, their performance improves further by…

Computer Vision and Pattern Recognition · Computer Science 2023-07-19 Gorjan Radevski , Dusan Grujicic , Marie-Francine Moens , Matthew Blaschko , Tinne Tuytelaars

Multimodal Deep Learning has garnered much interest, and transformers have triggered novel approaches, thanks to the cross-attention mechanism. Here we propose an approach to deal with two key existing challenges: the high computational…

Machine Learning · Computer Science 2021-10-20 Dhruv Agarwal , Tanay Agrawal , Laura M. Ferrari , François Bremond

Knowledge Distillation (KD) for object detection aims to train a compact detector by transferring knowledge from a teacher model. Since the teacher model perceives data in a way different from humans, existing KD methods only distill…

Computer Vision and Pattern Recognition · Computer Science 2024-02-22 Jiawei Liang , Siyuan Liang , Aishan Liu , Ke Ma , Jingzhi Li , Xiaochun Cao

Autonomous systems have advanced significantly, but challenges persist in accident-prone environments where robust decision-making is crucial. A single vehicle's limited sensor range and obstructed views increase the likelihood of…

Artificial Intelligence · Computer Science 2025-09-24 Rui Liu , Zikang Wang , Peng Gao , Yu Shen , Pratap Tokekar , Ming Lin

Knowledge distillation (KD) has been widely studied in unsupervised image Anomaly Detection (AD), but its application to unsupervised multimodal AD remains underexplored. Existing KD-based methods for multimodal AD that use fused multimodal…

Computer Vision and Pattern Recognition · Computer Science 2025-07-28 Xinyue Liu , Jianyuan Wang , Biao Leng , Shuo Zhang

Semantic segmentation of large-scale 3D point clouds is crucial for applications such as autonomous driving and urban digital twins. However, the sparse sampling pattern of LiDAR and the view-dependent geometric distortion in image…

Computer Vision and Pattern Recognition · Computer Science 2026-05-11 Shuai Zhang , Zhecheng Shi , Zhuxiao Li , Jing Ou , Tengxi Wang , Yuan Liu , Wufan Zhao

Fusing LiDAR and camera information is essential for achieving accurate and reliable 3D object detection in autonomous driving systems. This is challenging due to the difficulty of combining multi-granularity geometric and semantic features…

Computer Vision and Pattern Recognition · Computer Science 2023-03-06 Yang Jiao , Zequn Jie , Shaoxiang Chen , Jingjing Chen , Lin Ma , Yu-Gang Jiang

High-quality annotation of fine-grained visual categories demands great expert knowledge, which is taxing and time consuming. Alternatively, learning fine-grained visual representation from enormous unlabeled images (e.g., species, brands)…

Computer Vision and Pattern Recognition · Computer Science 2025-06-25 Qi Bi , Wei Ji , Jingjun Yi , Haolan Zhan , Gui-Song Xia

Currently, detecting 3D objects in Bird's-Eye-View (BEV) is superior to other 3D detectors for autonomous driving and robotics. However, transforming image features into BEV necessitates special operators to conduct feature sampling. These…

Computer Vision and Pattern Recognition · Computer Science 2022-08-22 Hongyu Zhou , Zheng Ge , Weixin Mao , Zeming Li

Learning based on multimodal data has attracted increasing interest recently. While a variety of sensory modalities can be collected for training, not all of them are always available in development scenarios, which raises the challenge to…

Computer Vision and Pattern Recognition · Computer Science 2025-07-30 Shicai Wei , Yang Luo , Chunbo Luo

Vision-centric Bird's Eye View (BEV) perception holds considerable promise for autonomous driving. Recent studies have prioritized efficiency or accuracy enhancements, yet the issue of domain shift has been overlooked, leading to…

Computer Vision and Pattern Recognition · Computer Science 2025-09-18 Rongyu Zhang , Jiaming Liu , Xiaoqi Li , Xiaowei Chi , Dan Wang , Li Du , Yuan Du , Shanghang Zhang