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Training a robust classifier and an accurate box regressor are difficult for occluded pedestrian detection. Traditionally adopted Intersection over Union (IoU) measurement does not consider the occluded region of the object and leads to…

Computer Vision and Pattern Recognition · Computer Science 2019-11-27 Ruiqi Lu , Huimin Ma

The significant power of deep learning networks has led to enormous development in object detection. Over the last few years, object detector frameworks have achieved tremendous success in both accuracy and efficiency. However, their…

Computer Vision and Pattern Recognition · Computer Science 2021-04-13 Kaziwa Saleh , Sándor Szénási , Zoltán Vámossy

Detecting prohibited items in X-ray security imagery is a challenging yet crucial task. With the rapid advancement of deep learning, object detection algorithms have been widely applied in this area. However, the distribution of object…

Computer Vision and Pattern Recognition · Computer Science 2025-08-14 Haoyu Wang , Renshuai Tao , Wei Wang , Yunchao Wei

Camouflaged Object Detection (COD) aims to identify objects that blend seamlessly into natural scenes. Although RGB-based methods have advanced, their performance remains limited under challenging conditions. Multispectral imagery,…

Computer Vision and Pattern Recognition · Computer Science 2025-09-22 Yang Li , Tingfa Xu , Shuyan Bai , Peifu Liu , Jianan Li

Video-based computer vision tasks can benefit from estimation of the salient regions and interactions between those regions. Traditionally, this has been done by identifying the object regions in the images by utilizing pre-trained models…

Computer Vision and Pattern Recognition · Computer Science 2022-08-03 Arulkumar Subramaniam , Jayesh Vaidya , Muhammed Abdul Majeed Ameen , Athira Nambiar , Anurag Mittal

Current video object detection (VOD) models often encounter issues with over-aggregation due to redundant aggregation strategies, which perform feature aggregation on every frame. This results in suboptimal performance and increased…

Computer Vision and Pattern Recognition · Computer Science 2023-08-23 Bingqing Zhang , Sen Wang , Yifan Liu , Brano Kusy , Xue Li , Jiajun Liu

A key step to driver safety is to observe the driver's activities with the face being a key step in this process to extracting information such as head pose, blink rate, yawns, talking to passenger which can then help derive higher level…

Computer Vision and Pattern Recognition · Computer Science 2018-02-08 Kevan Yuen , Mohan M. Trivedi

Object detection has been a building block in computer vision. Though considerable progress has been made, there still exist challenges for objects with small size, arbitrary direction, and dense distribution. Apart from natural images,…

Computer Vision and Pattern Recognition · Computer Science 2019-08-13 Xue Yang , Jirui Yang , Junchi Yan , Yue Zhang , Tengfei Zhang , Zhi Guo , Sun Xian , Kun Fu

Occlusion is a key factor leading to detection failures. This paper proposes a motion-assisted detection (MAD) method that actively plans an executable path, for the robot to observe the target at a new viewpoint with potentially reduced…

Robotics · Computer Science 2024-12-25 Zhixuan Xie , Jianjun Chen , Guoliang Li , Shuai Wang , Kejiang Ye , Yonina C. Eldar , Chengzhong Xu

Occluded face detection is a challenging detection task due to the large appearance variations incurred by various real-world occlusions. This paper introduces an Adversarial Occlusion-aware Face Detector (AOFD) by simultaneously detecting…

Computer Vision and Pattern Recognition · Computer Science 2018-10-02 Yujia Chen , Lingxiao Song , Ran He

Occlusion-aware instance-sensitive segmentation is a complex task generally split into region-based segmentations, by approximating instances as their bounding box. We address the showcase scenario of dense homogeneous layouts in which this…

Computer Vision and Pattern Recognition · Computer Science 2020-07-16 Matthieu Grard , Emmanuel Dellandréa , Liming Chen

Recent emergence of memory-based video segmentation methods such as SAM2 has led to models with excellent performance in segmentation tasks, achieving leading results on numerous benchmarks. However, these modes are not fully adjusted for…

Computer Vision and Pattern Recognition · Computer Science 2025-09-18 Jovana Videnovic , Matej Kristan , Alan Lukezic

While 3D object detection in LiDAR point clouds is well-established in academia and industry, the explainability of these models is a largely unexplored field. In this paper, we propose a method to generate attribution maps for the detected…

Computer Vision and Pattern Recognition · Computer Science 2022-04-15 David Schinagl , Georg Krispel , Horst Possegger , Peter M. Roth , Horst Bischof

Object detection has been applied in a wide variety of real world scenarios, so detection algorithms must provide confidence in the results to ensure that appropriate decisions can be made based on their results. Accordingly, several…

Computer Vision and Pattern Recognition · Computer Science 2021-08-26 Sanghun Park , Kunhee Kim , Eunseop Lee , Daijin Kim

Advances in LiDAR sensors provide rich 3D data that supports 3D scene understanding. However, due to occlusion and signal miss, LiDAR point clouds are in practice 2.5D as they cover only partial underlying shapes, which poses a fundamental…

Computer Vision and Pattern Recognition · Computer Science 2021-12-07 Qiangeng Xu , Yiqi Zhong , Ulrich Neumann

Orbital angular momentum (OAM) detection underpins almost all aspects of vortex beams' advances such as communication and quantum analogy. Conventional schemes are frustrated by low speed, complicated system, limited detection range. Here,…

Emerging Technologies · Computer Science 2022-09-07 Hao Wang , Ziyu Zhan , Futai Hu , Yuan Meng , Zeqi Liu , Xing Fu , Qiang Liu

Advancements in Computer-Aided Screening (CAS) systems are essential for improving the detection of security threats in X-ray baggage scans. However, current datasets are limited in representing real-world, sophisticated threats and…

Recognition of occluded objects in unseen and unstructured indoor environments is a challenging problem for mobile robots. To address this challenge, we propose a new descriptor, TOPS, for point clouds generated from depth images and an…

Computer Vision and Pattern Recognition · Computer Science 2023-12-22 Ekta U. Samani , Ashis G. Banerjee

Occluded pedestrian re-identification (ReID) in base station environments is a critical task in computer vision, particularly for surveillance and security applications. This task faces numerous challenges, as occlusions often obscure key…

Computer Vision and Pattern Recognition · Computer Science 2025-11-04 Ge Gao , Zishuo Gao , Hongyan Cui , Zhiyang Jia , Zhuang Luo , ChaoPeng Liu

Backdoor attacks pose a significant security vulnerability for deep neural networks (DNNs), enabling them to operate normally on clean inputs but manipulate predictions when specific trigger patterns occur. Currently, post-training backdoor…

Cryptography and Security · Computer Science 2024-10-22 Yanghao Su , Jie Zhang , Ting Xu , Tianwei Zhang , Weiming Zhang , Nenghai Yu