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Unsupervised object discovery, the task of identifying and localizing objects in images without human-annotated labels, remains a significant challenge and a growing focus in computer vision. In this work, we introduce a novel model, DADO…

Computer Vision and Pattern Recognition · Computer Science 2025-10-09 Federico Gonzalez , Estefania Talavera , Petia Radeva

The perception of autonomous vehicles has to be efficient, robust, and cost-effective. However, cameras are not robust against severe weather conditions, lidar sensors are expensive, and the performance of radar-based perception is still…

Computer Vision and Pattern Recognition · Computer Science 2024-12-04 Felix Fent , Andras Palffy , Holger Caesar

Semantic segmentation from very fine resolution (VFR) urban scene images plays a significant role in several application scenarios including autonomous driving, land cover classification, and urban planning, etc. However, the tremendous…

Computer Vision and Pattern Recognition · Computer Science 2022-06-06 Libo Wang , Rui Li , Dongzhi Wang , Chenxi Duan , Teng Wang , Xiaoliang Meng

This paper introduces a novel deep learning-based multimodal fusion architecture aimed at enhancing the perception capabilities of autonomous navigation robots in complex environments. By utilizing innovative feature extraction modules,…

Machine Learning · Computer Science 2025-04-29 Delun Lai , Yeyubei Zhang , Yunchong Liu , Chaojie Li , Huadong Mo

With the increased deployment of face recognition systems in our daily lives, face presentation attack detection (PAD) is attracting much attention and playing a key role in securing face recognition systems. Despite the great performance…

Computer Vision and Pattern Recognition · Computer Science 2021-11-03 Meiling Fang , Naser Damer , Florian Kirchbuchner , Arjan Kuijper

Human activity recognition (HAR) based on multimodal sensors has become a rapidly growing branch of biometric recognition and artificial intelligence. However, how to fully mine multimodal time series data and effectively learn accurate…

Computer Vision and Pattern Recognition · Computer Science 2022-05-25 Jialiang Wang , Haotian Wei , Yi Wang , Shu Yang , Chi Li

Fully autonomous driving systems require fast detection and recognition of sensitive objects in the environment. In this context, intelligent vehicles should share their sensor data with computing platforms and/or other vehicles, to detect…

Networking and Internet Architecture · Computer Science 2021-04-27 Valentina Rossi , Paolo Testolina , Marco Giordani , Michele Zorzi

Extracting effective and discriminative features is very important for addressing the challenging person re-identification (re-ID) task. Prevailing deep convolutional neural networks (CNNs) usually use high-level features for identifying…

Computer Vision and Pattern Recognition · Computer Science 2021-06-08 Guoqing Zhang , Junchuan Yang , Yuhui Zheng , Yi Wu , Shengyong Chen

3D object detection with surround-view images is an essential task for autonomous driving. In this work, we propose DETR4D, a Transformer-based framework that explores sparse attention and direct feature query for 3D object detection in…

Computer Vision and Pattern Recognition · Computer Science 2022-12-16 Zhipeng Luo , Changqing Zhou , Gongjie Zhang , Shijian Lu

By exploiting complementary sensor information, radar and camera fusion systems have the potential to provide a highly robust and reliable perception system for advanced driver assistance systems and automated driving functions. Recent…

Computer Vision and Pattern Recognition · Computer Science 2023-09-28 Lukas Stäcker , Philipp Heidenreich , Jason Rambach , Didier Stricker

In autonomous driving, camera-radar fusion offers complementary sensing and low deployment cost. Existing methods perform fusion through input mixing, feature map mixing, or query-based feature sampling. We propose a new fusion paradigm,…

Computer Vision and Pattern Recognition · Computer Science 2026-04-29 Jialong Wu , Yihan Wang , Matthias Rottmann

The detection of multiple extended targets in complex environments using high-resolution automotive radar is considered. A data-driven approach is proposed where unlabeled synchronized lidar data is used as ground truth to train a neural…

Signal Processing · Electrical Eng. & Systems 2024-11-14 Ignacio Roldan , Andras Palffy , Julian F. P. Kooij , Dariu M. Gavrila , Francesco Fioranelli , Alexander Yarovoy

4D automotive radar is indispensable for autonomous driving due to its low cost and robustness, yet its point cloud sparsity challenges 3D object detection. Existing 4D radar-camera fusion methods focus on complex fusion strategies, trading…

Computer Vision and Pattern Recognition · Computer Science 2026-05-21 Weiyi Xiong , Bing Zhu

Human Activity Recognition (HAR) using wearable sensor data has become a central task in mobile computing, healthcare, and human-computer interaction. Despite the success of traditional deep learning models such as CNNs and RNNs, they often…

Machine Learning · Computer Science 2025-05-27 Yunbo Liu , Xukui Qin , Yifan Gao , Xiang Li , Chengwei Feng

Object detection on VHR remote sensing images plays a vital role in applications such as urban planning, land resource management, and rescue missions. The large-scale variation of the remote-sensing targets is one of the main challenges in…

Computer Vision and Pattern Recognition · Computer Science 2023-05-30 Tao Chen , Ruirui Li , Jiafeng Fu , Daguang Jiang

As one of the automotive sensors that have emerged in recent years, 4D millimeter-wave radar has a higher resolution than conventional 3D radar and provides precise elevation measurements. But its point clouds are still sparse and noisy,…

Computer Vision and Pattern Recognition · Computer Science 2026-01-14 Hongsi Liu , Jun Liu , Guangfeng Jiang , Xin Jin

Fitness movement recognition, a focused subdomain of human activity recognition (HAR), plays a vital role in health monitoring, rehabilitation, and personalized fitness training by enabling automated exercise classification from video data.…

Computer Vision and Pattern Recognition · Computer Science 2025-10-08 Shanjid Hasan Nishat , Srabonti Deb , Mohiuddin Ahmed

Object detection is essential to safe autonomous or assisted driving. Previous works usually utilize RGB images or LiDAR point clouds to identify and localize multiple objects in self-driving. However, cameras tend to fail in bad driving…

Computer Vision and Pattern Recognition · Computer Science 2021-07-06 Zangwei Zheng , Xiangyu Yue , Kurt Keutzer , Alberto Sangiovanni Vincentelli

Semantic segmentation is an essential part of deep learning. In recent years, with the development of remote sensing big data, semantic segmentation has been increasingly used in remote sensing. Deep convolutional neural networks (DCNNs)…

Computer Vision and Pattern Recognition · Computer Science 2021-05-31 Xuan Yang , Shanshan Li , Zhengchao Chen , Jocelyn Chanussot , Xiuping Jia , Bing Zhang , Baipeng Li , Pan Chen

Extensive research has been conducted on assessing grasp stability, a crucial prerequisite for achieving optimal grasping strategies, including the minimum force grasping policy. However, existing works employ basic feature-level fusion…

Robotics · Computer Science 2023-08-03 Zhuangzhuang Zhang , Zhenning Zhou , Haili Wang , Zhinan Zhang , Huang Huang , Qixin Cao