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3D object detection based on point clouds has become more and more popular. Some methods propose localizing 3D objects directly from raw point clouds to avoid information loss. However, these methods come with complex structures and…

Computer Vision and Pattern Recognition · Computer Science 2020-04-02 Guodong Xu , Wenxiao Wang , Zili Liu , Liang Xie , Zheng Yang , Haifeng Liu , Deng Cai

Object detection in Unmanned Aerial Vehicle (UAV) imagery is fundamentally challenged by a prevalence of small, densely packed, and occluded objects within cluttered backgrounds. Conventional detectors struggle with this domain, as they…

Computer Vision and Pattern Recognition · Computer Science 2025-11-11 Hongxing Peng , Lide Chen , Hui Zhu , Yan Chen

Detecting objects in 3D space using multiple cameras, known as Multi-Camera 3D Object Detection (MC3D-Det), has gained prominence with the advent of bird's-eye view (BEV) approaches. However, these methods often struggle when faced with…

Computer Vision and Pattern Recognition · Computer Science 2023-12-27 Hao Lu , Yunpeng Zhang , Qing Lian , Dalong Du , Yingcong Chen

Detecting 3D objects in point clouds plays a crucial role in autonomous driving systems. Recently, advanced multi-modal methods incorporating camera information have achieved notable performance. For a safe and effective autonomous driving…

Computer Vision and Pattern Recognition · Computer Science 2025-02-28 Hoonhee Cho , Jae-young Kang , Youngho Kim , Kuk-Jin Yoon

3D Visual Grounding (3DVG) aims to localize the referent of natural language referring expressions through two core tasks: Referring Expression Comprehension (3DREC) and Segmentation (3DRES). While existing methods achieve high accuracy in…

Computer Vision and Pattern Recognition · Computer Science 2026-03-19 Wenbin Tan , Jiawen Lin , Fangyong Wang , Yuan Xie , Yong Xie , Yachao Zhang , Yanyun Qu

Real-time object detection has achieved substantial progress through meticulously designed architectures and optimization strategies. However, the pursuit of high-speed inference via lightweight network designs often leads to degraded…

Computer Vision and Pattern Recognition · Computer Science 2025-10-30 Zijun Liao , Yian Zhao , Xin Shan , Yu Yan , Chang Liu , Lei Lu , Xiangyang Ji , Jie Chen

Hyperspectral target detection (HTD) aims to identify specific materials based on spectral information in hyperspectral imagery and can detect extremely small-sized objects, some of which occupy a smaller than one-pixel area. However,…

Computer Vision and Pattern Recognition · Computer Science 2026-01-13 Zhaoxu Li , Wei An , Gaowei Guo , Longguang Wang , Yingqian Wang , Zaiping Lin

This paper takes an important step in bridging the performance gap between DETR and R-CNN for graphical object detection. Existing graphical object detection approaches have enjoyed recent enhancements in CNN-based object detection methods,…

Computer Vision and Pattern Recognition · Computer Science 2023-06-26 Tahira Shehzadi , Khurram Azeem Hashmi , Didier Stricker , Marcus Liwicki , Muhammad Zeshan Afzal

Recent DEtection TRansformer-based (DETR) models have obtained remarkable performance. Its success cannot be achieved without the re-introduction of multi-scale feature fusion in the encoder. However, the excessively increased tokens in…

Computer Vision and Pattern Recognition · Computer Science 2023-03-14 Feng Li , Ailing Zeng , Shilong Liu , Hao Zhang , Hongyang Li , Lei Zhang , Lionel M. Ni

2D object proposals, quickly detected regions in an image that likely contain an object of interest, are an effective approach for improving the computational efficiency and accuracy of object detection in color images. In this work, we…

Computer Vision and Pattern Recognition · Computer Science 2018-06-27 Ramanpreet Singh Pahwa , Jiangbo Lu , Nianjuan Jiang , Tian Tsong Ng , Minh N. Do

The progress of LiDAR-based 3D object detection has significantly enhanced developments in autonomous driving and robotics. However, due to the limitations of LiDAR sensors, object shapes suffer from deterioration in occluded and distant…

Computer Vision and Pattern Recognition · Computer Science 2023-03-06 You Shen , Yunzhou Zhang , Yanmin Wu , Zhenyu Wang , Linghao Yang , Sonya Coleman , Dermot Kerr

This paper explores the use of applying a deep learning approach for 3D object detection to compute the relative position of an Unmanned Aerial Vehicle (UAV) from an Unmanned Ground Vehicle (UGV) equipped with a LiDAR sensor in a GPS-denied…

Robotics · Computer Science 2025-04-10 Uthman Olawoye , Jason N. Gross

Visual place recognition (VPR) is a fundamental task for many applications such as robot localization and augmented reality. Recently, the hierarchical VPR methods have received considerable attention due to the trade-off between accuracy…

Computer Vision and Pattern Recognition · Computer Science 2024-04-09 Feng Lu , Shuting Dong , Lijun Zhang , Bingxi Liu , Xiangyuan Lan , Dongmei Jiang , Chun Yuan

While DETR-like architectures have demonstrated significant potential for monocular 3D object detection, they are often hindered by a critical limitation: the exclusion of 3D attributes from the bipartite matching process. This exclusion…

Computer Vision and Pattern Recognition · Computer Science 2026-01-06 Kiet Dang Vu , Trung Thai Tran , Kien Nguyen Do Trung , Duc Dung Nguyen

To act in the world, a model must name what it sees and know where it is in 3D. Today's vision-language models (VLMs) excel at open-ended 2D description and grounding, yet multi-object 3D detection remains largely missing from the VLM…

Computer Vision and Pattern Recognition · Computer Science 2026-02-24 Yunze Man , Shihao Wang , Guowen Zhang , Johan Bjorck , Zhiqi Li , Liang-Yan Gui , Jim Fan , Jan Kautz , Yu-Xiong Wang , Zhiding Yu

We rethink the role of positional encoding in 3D representation learning and fine-tuning. We argue that using positional encoding in point Transformer-based methods serves to aggregate multi-scale features of point clouds. Additionally, we…

Computer Vision and Pattern Recognition · Computer Science 2025-09-25 Shaochen Zhang , Zekun Qi , Runpei Dong , Xiuxiu Bai , Xing Wei

Detection Transformer (DETR) has redefined object detection by casting it as a set prediction task within an end-to-end framework. Despite its elegance, DETR and its variants still rely on fixed learnable queries and suffer from severe…

Computer Vision and Pattern Recognition · Computer Science 2026-03-24 Zhengjian Kang , Jun Zhuang , Kangtong Mo , Qi Chen , Rui Liu , Ye Zhang

We present RangeRCNN, a novel and effective 3D object detection framework based on the range image representation. Most existing methods are voxel-based or point-based. Though several optimizations have been introduced to ease the sparsity…

Computer Vision and Pattern Recognition · Computer Science 2021-03-24 Zhidong Liang , Ming Zhang , Zehan Zhang , Xian Zhao , Shiliang Pu

Event-based cameras (EBCs) have emerged as a bio-inspired alternative to traditional cameras, offering advantages in power efficiency, temporal resolution, and high dynamic range. However, the development of image analysis methods for EBCs…

Computer Vision and Pattern Recognition · Computer Science 2025-08-06 Dmitrii Torbunov , Yihui Ren , Animesh Ghose , Odera Dim , Yonggang Cui

In this paper, we address the limitations of the DETR-based semi-supervised object detection (SSOD) framework, particularly focusing on the challenges posed by the quality of object queries. In DETR-based SSOD, the one-to-one assignment…

Computer Vision and Pattern Recognition · Computer Science 2024-04-03 Tahira Shehzadi , Khurram Azeem Hashmi , Didier Stricker , Muhammad Zeshan Afzal