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Single stage deep learning algorithm for 2D object detection was made popular by Single Shot MultiBox Detector (SSD) and it was heavily adopted in several embedded applications. PointPillars is a state of the art 3D object detection…

Computer Vision and Pattern Recognition · Computer Science 2020-05-05 Aniket Limaye , Manu Mathew , Soyeb Nagori , Pramod Kumar Swami , Debapriya Maji , Kumar Desappan

While multi-class 3D detectors are needed in many robotics applications, training them with fully labeled datasets can be expensive in labeling cost. An alternative approach is to have targeted single-class labels on disjoint data samples.…

Computer Vision and Pattern Recognition · Computer Science 2022-05-13 Mao Ye , Chenxi Liu , Maoqing Yao , Weiyue Wang , Zhaoqi Leng , Charles R. Qi , Dragomir Anguelov

Weakly supervised object detection has recently received much attention, since it only requires image-level labels instead of the bounding-box labels consumed in strongly supervised learning. Nevertheless, the save in labeling expense is…

Computer Vision and Pattern Recognition · Computer Science 2018-02-13 Jiajie Wang , Jiangchao Yao , Ya Zhang , Rui Zhang

3D single object tracking is a key task in 3D computer vision. However, the sparsity of point clouds makes it difficult to compute the similarity and locate the object, posing big challenges to the 3D tracker. Previous works tried to solve…

Computer Vision and Pattern Recognition · Computer Science 2022-10-04 Yubo Cui , Jiayao Shan , Zuoxu Gu , Zhiheng Li , Zheng Fang

This paper presents a new approach to boost a single-modality (LiDAR) 3D object detector by teaching it to simulate features and responses that follow a multi-modality (LiDAR-image) detector. The approach needs LiDAR-image data only when…

Computer Vision and Pattern Recognition · Computer Science 2022-07-01 Wu Zheng , Mingxuan Hong , Li Jiang , Chi-Wing Fu

Recent developments for Semi-Supervised Object Detection (SSOD) have shown the promise of leveraging unlabeled data to improve an object detector. However, thus far these methods have assumed that the unlabeled data does not contain…

Computer Vision and Pattern Recognition · Computer Science 2022-08-30 Yen-Cheng Liu , Chih-Yao Ma , Xiaoliang Dai , Junjiao Tian , Peter Vajda , Zijian He , Zsolt Kira

Weakly supervised point cloud semantic segmentation methods that require 1\% or fewer labels, hoping to realize almost the same performance as fully supervised approaches, which recently, have attracted extensive research attention. A…

Computer Vision and Pattern Recognition · Computer Science 2022-09-19 Tianfang Sun , Zhizhong Zhang , Xin Tan , Yanyun Qu , Yuan Xie , Lizhuang Ma

Unsupervised 3D object detection serves as an important solution for offline 3D object annotation. However, due to the data sparsity and limited views, the clustering-based label fitting in unsupervised object detection often generates…

Computer Vision and Pattern Recognition · Computer Science 2025-03-14 Qiming Xia , Wenkai Lin , Haoen Xiang , Xun Huang , Siheng Chen , Zhen Dong , Cheng Wang , Chenglu Wen

3D detection is a critical task that enables machines to identify and locate objects in three-dimensional space. It has a broad range of applications in several fields, including autonomous driving, robotics and augmented reality. Monocular…

Computer Vision and Pattern Recognition · Computer Science 2024-04-11 Aakash Kumar , Chen Chen , Ajmal Mian , Neils Lobo , Mubarak Shah

Deep learning has attained remarkable success in many 3D visual recognition tasks, including shape classification, object detection, and semantic segmentation. However, many of these results rely on manually collecting densely annotated…

Computer Vision and Pattern Recognition · Computer Science 2022-12-19 Fernando Julio Cendra , Lan Ma , Jiajun Shen , Xiaojuan Qi

This paper focuses on the scale imbalance problem of semi-supervised object detection(SSOD) in aerial images. Compared to natural images, objects in aerial images show smaller sizes and larger quantities per image, increasing the difficulty…

Computer Vision and Pattern Recognition · Computer Science 2023-10-24 Ruixiang Zhang , Chang Xu , Fang Xu , Wen Yang , Guangjun He , Huai Yu , Gui-Song Xia

Label-efficient LiDAR-based 3D object detection is currently dominated by weakly/semi-supervised methods. Instead of exclusively following one of them, we propose MixSup, a more practical paradigm simultaneously utilizing massive cheap…

Computer Vision and Pattern Recognition · Computer Science 2024-01-30 Yuxue Yang , Lue Fan , Zhaoxiang Zhang

Due to the few annotated labels of 3D point clouds, how to learn discriminative features of point clouds to segment object instances is a challenging problem. In this paper, we propose a simple yet effective 3D instance segmentation…

Computer Vision and Pattern Recognition · Computer Science 2022-10-12 Linghua Tang , Le Hui , Jin Xie

Monocular 3D object detection (M3OD) is a significant yet inherently challenging task in autonomous driving due to absence of explicit depth cues in a single RGB image. In this paper, we strive to boost currently underperforming monocular…

Computer Vision and Pattern Recognition · Computer Science 2023-11-08 Weijia Zhang , Dongnan Liu , Chao Ma , Weidong Cai

Incompletely-Supervised Concealed Object Segmentation (ISCOS) involves segmenting objects that seamlessly blend into their surrounding environments, utilizing incompletely annotated data, such as weak and semi-annotations, for model…

Computer Vision and Pattern Recognition · Computer Science 2025-06-17 Chunming He , Kai Li , Yachao Zhang , Ziyun Yang , Youwei Pang , Longxiang Tang , Chengyu Fang , Yulun Zhang , Linghe Kong , Xiu Li , Sina Farsiu

Object detectors trained on fully-annotated data currently yield state of the art performance but require expensive manual annotations. On the other hand, weakly-supervised detectors have much lower performance and cannot be used reliably…

Computer Vision and Pattern Recognition · Computer Science 2020-02-19 Linpu Fang , Hang Xu , Zhili Liu , Sarah Parisot , Zhenguo Li

LiDAR sensors can be used to obtain a wide range of measurement signals other than a simple 3D point cloud, and those signals can be leveraged to improve perception tasks like 3D object detection. A single laser pulse can be partially…

Computer Vision and Pattern Recognition · Computer Science 2021-07-27 Yunze Man , Xinshuo Weng , Prasanna Kumar Sivakuma , Matthew O'Toole , Kris Kitani

To safely deploy autonomous vehicles, onboard perception systems must work reliably at high accuracy across a diverse set of environments and geographies. One of the most common techniques to improve the efficacy of such systems in new…

Computer Vision and Pattern Recognition · Computer Science 2021-03-04 Benjamin Caine , Rebecca Roelofs , Vijay Vasudevan , Jiquan Ngiam , Yuning Chai , Zhifeng Chen , Jonathon Shlens

The prevalent approaches of unsupervised 3D object detection follow cluster-based pseudo-label generation and iterative self-training processes. However, the challenge arises due to the sparsity of LiDAR scans, which leads to pseudo-labels…

Computer Vision and Pattern Recognition · Computer Science 2024-06-27 Hai Wu , Shijia Zhao , Xun Huang , Chenglu Wen , Xin Li , Cheng Wang

Although LiDAR sensors are crucial for autonomous systems due to providing precise depth information, they struggle with capturing fine object details, especially at a distance, due to sparse and non-uniform data. Recent advances introduced…

Computer Vision and Pattern Recognition · Computer Science 2023-09-19 Tiago Cortinhal , Idriss Gouigah , Eren Erdal Aksoy