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Accurate 3D object detection (3DOD) is crucial for safe navigation of complex environments by autonomous robots. Regressing accurate 3D bounding boxes in cluttered environments based on sparse LiDAR data is however a highly challenging…

Computer Vision and Pattern Recognition · Computer Science 2023-11-08 Fredrik K. Gustafsson , Martin Danelljan , Thomas B. Schön

Current anchor-free object detectors label all the features that spatially fall inside a predefined central region of a ground-truth box as positive. This approach causes label noise during training, since some of these positively labeled…

Computer Vision and Pattern Recognition · Computer Science 2020-08-17 Nermin Samet , Samet Hicsonmez , Emre Akbas

Recent real-time detection transformers have gained popularity due to their simplicity and efficiency. However, these detectors do not explicitly model object rotation, especially in remote sensing imagery where objects appear at arbitrary…

Computer Vision and Pattern Recognition · Computer Science 2026-03-17 Zeyu Ding , Yong Zhou , Jiaqi Zhao , Wen-Liang Du , Xixi Li , Rui Yao , Abdulmotaleb El Saddik

Currently, reliable and accurate ship detection in optical remote sensing images is still challenging. Even the state-of-the-art convolutional neural network (CNN) based methods cannot obtain very satisfactory results. To more accurately…

Computer Vision and Pattern Recognition · Computer Science 2021-08-27 Linhao Li , Zhiqiang Zhou , Bo Wang , Lingjuan Miao , Hua Zong

Object detection in Unmanned Aerial Vehicle (UAV) images poses significant challenges due to complex scale variations and class imbalance among objects. Existing methods often address these challenges separately, overlooking the intricate…

Computer Vision and Pattern Recognition · Computer Science 2025-04-29 Zhenteng Li , Sheng Lian , Dengfeng Pan , Youlin Wang , Wei Liu

In the last twenty years, unmanned aerial vehicles (UAVs) have garnered growing interest due to their expanding applications in both military and civilian domains. Detecting non-cooperative aerial vehicles with efficiency and estimating…

Current anchor-free object detectors are quite simple and effective yet lack accurate label assignment methods, which limits their potential in competing with classic anchor-based models that are supported by well-designed assignment…

Computer Vision and Pattern Recognition · Computer Science 2021-04-30 Jiachen Li , Bowen Cheng , Rogerio Feris , Jinjun Xiong , Thomas S. Huang , Wen-Mei Hwu , Humphrey Shi

Modern CNN-based object detectors assign anchors for ground-truth objects under the restriction of object-anchor Intersection-over-Unit (IoU). In this study, we propose a learning-to-match approach to break IoU restriction, allowing objects…

Computer Vision and Pattern Recognition · Computer Science 2019-11-13 Xiaosong Zhang , Fang Wan , Chang Liu , Rongrong Ji , Qixiang Ye

In object detection, determining which anchors to assign as positive or negative samples, known as anchor assignment, has been revealed as a core procedure that can significantly affect a model's performance. In this paper we propose a…

Computer Vision and Pattern Recognition · Computer Science 2020-09-08 Kang Kim , Hee Seok Lee

The better accuracy and efficiency trade-off has been a challenging problem in object detection. In this work, we are dedicated to studying key optimizations and neural network architecture choices for object detection to improve accuracy…

Computer Vision and Pattern Recognition · Computer Science 2021-11-02 Guanghua Yu , Qinyao Chang , Wenyu Lv , Chang Xu , Cheng Cui , Wei Ji , Qingqing Dang , Kaipeng Deng , Guanzhong Wang , Yuning Du , Baohua Lai , Qiwen Liu , Xiaoguang Hu , Dianhai Yu , Yanjun Ma

Object detection in optical remote sensing images, being a fundamental but challenging problem in the field of aerial and satellite image analysis, plays an important role for a wide range of applications and is receiving significant…

Computer Vision and Pattern Recognition · Computer Science 2016-04-05 Gong Cheng , Junwei Han

Real-time single-stage object detectors based on deep learning still remain less accurate than more complex ones. The trade-off between model performance and computational speed is a major challenge. In this paper, we propose a new way to…

Computer Vision and Pattern Recognition · Computer Science 2020-03-18 Florian Chabot , Quoc-Cuong Pham , Mohamed Chaouch

In this paper, we aim to design an efficient real-time object detector that exceeds the YOLO series and is easily extensible for many object recognition tasks such as instance segmentation and rotated object detection. To obtain a more…

Computer Vision and Pattern Recognition · Computer Science 2022-12-20 Chengqi Lyu , Wenwei Zhang , Haian Huang , Yue Zhou , Yudong Wang , Yanyi Liu , Shilong Zhang , Kai Chen

In autonomous driving, LiDAR and radar are crucial for environmental perception. LiDAR offers precise 3D spatial sensing information but struggles in adverse weather like fog. Conversely, radar signals can penetrate rain or mist due to…

Computer Vision and Pattern Recognition · Computer Science 2024-02-07 Yanlong Yang , Jianan Liu , Tao Huang , Qing-Long Han , Gang Ma , Bing Zhu

Structural bolts are critical components used in different structural elements, such as beam-column connections and friction damping devices. The clamping force in structural bolts is highly influenced by the bolt rotation. Much of the…

Computer Vision and Pattern Recognition · Computer Science 2021-11-18 Xiao Pan , T. Y. Yang

In this paper, we introduce SearchDet, a training-free long-tail object detection framework that significantly enhances open-vocabulary object detection performance. SearchDet retrieves a set of positive and negative images of an object to…

Computer Vision and Pattern Recognition · Computer Science 2024-09-30 Mankeerat Sidhu , Hetarth Chopra , Ansel Blume , Jeonghwan Kim , Revanth Gangi Reddy , Heng Ji

Accurate 3D object detection in LiDAR based point clouds suffers from the challenges of data sparsity and irregularities. Existing methods strive to organize the points regularly, e.g. voxelize, pass them through a designed 2D/3D neural…

Computer Vision and Pattern Recognition · Computer Science 2020-10-14 Qi Chen , Lin Sun , Zhixin Wang , Kui Jia , Alan Yuille

This paper presents an efficient way of detecting directed objects by predicting their center coordinates and direction angle. Since the objects are of uniform size, the proposed model works without predicting the object's width and height.…

Computer Vision and Pattern Recognition · Computer Science 2023-08-10 Đorđe Nedeljković

We introduce a multi-modal WAVE-DETR drone detector combining visible RGB and acoustic signals for robust real-life UAV object detection. Our approach fuses visual and acoustic features in a unified object detector model relying on the…

Computer Vision and Pattern Recognition · Computer Science 2025-09-15 Razvan Stefanescu , Ethan Oh , Ruben Vazquez , Chris Mesterharm , Constantin Serban , Ritu Chadha

We introduce a framework for multi-camera 3D object detection. In contrast to existing works, which estimate 3D bounding boxes directly from monocular images or use depth prediction networks to generate input for 3D object detection from 2D…

Computer Vision and Pattern Recognition · Computer Science 2021-10-14 Yue Wang , Vitor Guizilini , Tianyuan Zhang , Yilun Wang , Hang Zhao , Justin Solomon