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Generalizing open-vocabulary 3D instance segmentation (OV-3DIS) to diverse, unstructured, and mesh-free environments is crucial for robotics and AR/VR, yet remains a significant challenge. We attribute this to two key limitations of…

Computer Vision and Pattern Recognition · Computer Science 2026-05-15 Zhishan Zhou , Siyuan Wei , Zengran Wang , Chunjie Wang , Xiaosheng Yan , Xiao Liu

Traditional closed-set 3D detection frameworks fail to meet the demands of open-world applications like autonomous driving. Existing open-vocabulary 3D detection methods typically adopt a two-stage pipeline consisting of pseudo-label…

Computer Vision and Pattern Recognition · Computer Science 2025-08-19 Qi Liu , Yabei Li , Hongsong Wang , Lei He

Monocular 3D object detection encounters occlusion problems in many application scenarios, such as traffic monitoring, pedestrian monitoring, etc., which leads to serious false negative. Multi-view object detection effectively solves this…

Computer Vision and Pattern Recognition · Computer Science 2021-09-23 Li Haoran , Duan Zicheng , Ma Mingjun , Chen Yaran , Li Jiaqi , Zhao Dongbin

A crucial task in scene understanding is 3D object detection, which aims to detect and localize the 3D bounding boxes of objects belonging to specific classes. Existing 3D object detectors heavily rely on annotated 3D bounding boxes during…

Computer Vision and Pattern Recognition · Computer Science 2020-07-29 Zengyi Qin , Jinglu Wang , Yan Lu

We present the Habitat-Matterport 3D Open Vocabulary Object Goal Navigation dataset (HM3D-OVON), a large-scale benchmark that broadens the scope and semantic range of prior Object Goal Navigation (ObjectNav) benchmarks. Leveraging the…

Artificial Intelligence · Computer Science 2024-09-24 Naoki Yokoyama , Ram Ramrakhya , Abhishek Das , Dhruv Batra , Sehoon Ha

We present a novel 3D object detection framework, named IPOD, based on raw point cloud. It seeds object proposal for each point, which is the basic element. This paradigm provides us with high recall and high fidelity of information,…

Computer Vision and Pattern Recognition · Computer Science 2018-12-14 Zetong Yang , Yanan Sun , Shu Liu , Xiaoyong Shen , Jiaya Jia

In autonomous driving, 3D object detection based on multi-modal data has become an indispensable approach when facing complex environments around the vehicle. During multi-modal detection, LiDAR and camera are simultaneously applied for…

Computer Vision and Pattern Recognition · Computer Science 2023-01-19 Rui Wan , Tianyun Zhao , Wei Zhao

We introduce Ilov3Splat, a novel framework for instance-level open-vocabulary 3D scene understanding built on 3D Gaussian Splatting (3D-GS). Most prior work depends on 2D rendering-based matching or point-level semantic association, which…

Computer Vision and Pattern Recognition · Computer Science 2026-05-14 Binh Long Nguyen , Kien Nguyen , Sridha Sridharan , Clinton Fookes , Peyman Moghadam

Recent advancements in 3D object detection and novel category detection have made significant progress, yet research on learning generalized 3D objectness remains insufficient. In this paper, we delve into learning open-world 3D objectness,…

Computer Vision and Pattern Recognition · Computer Science 2025-10-21 Taichi Liu , Zhenyu Wang , Ruofeng Liu , Guang Wang , Desheng Zhang

There is a trend to fuse multi-modal information for 3D object detection (3OD). However, the challenging problems of low lightweightness, poor flexibility of plug-and-play, and inaccurate alignment of features are still not well-solved,…

Computer Vision and Pattern Recognition · Computer Science 2022-11-04 Lipeng Gu , Xuefeng Yan , Peng Cui , Lina Gong , Haoran Xie , Fu Lee Wang , Jin Qin , Mingqiang Wei

Incremental 3D object perception is a critical step toward embodied intelligence in dynamic indoor environments. However, existing incremental 3D detection methods rely on extensive annotations of novel classes for satisfactory performance.…

Computer Vision and Pattern Recognition · Computer Science 2026-04-10 Yun Zhu , Jianjun Qian , Jian Yang , Jin Xie , Na Zhao

Open-vocabulary object detection (OVOD) aims to detect the objects beyond the set of classes observed during training. This work introduces a straightforward and efficient strategy that utilizes pre-trained vision-language models (VLM),…

Computer Vision and Pattern Recognition · Computer Science 2024-04-02 Shilin Xu , Xiangtai Li , Size Wu , Wenwei Zhang , Yunhai Tong , Chen Change Loy

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

Object detection from 3D point clouds remains a challenging task, though recent studies pushed the envelope with the deep learning techniques. Owing to the severe spatial occlusion and inherent variance of point density with the distance to…

Computer Vision and Pattern Recognition · Computer Science 2020-06-09 Liang Du , Xiaoqing Ye , Xiao Tan , Jianfeng Feng , Zhenbo Xu , Errui Ding , Shilei Wen

In this paper, we focus on exploring the fusion of images and point clouds for 3D object detection in view of the complementary nature of the two modalities, i.e., images possess more semantic information while point clouds specialize in…

Computer Vision and Pattern Recognition · Computer Science 2020-08-25 Ming Zhu , Chao Ma , Pan Ji , Xiaokang Yang

Conventional 3D object detection approaches concentrate on bounding boxes representation learning with several parameters, i.e., localization, dimension, and orientation. Despite its popularity and universality, such a straightforward…

Computer Vision and Pattern Recognition · Computer Science 2022-04-01 Xuelin Qian , Li Wang , Yi Zhu , Li Zhang , Yanwei Fu , Xiangyang Xue

Monocular 3D object detection is valuable for various applications such as robotics and AR/VR. Existing methods are confined to closed-set settings, where the training and testing sets consist of the same scenes and/or object categories.…

Computer Vision and Pattern Recognition · Computer Science 2025-09-08 Yung-Hsu Yang , Luigi Piccinelli , Mattia Segu , Siyuan Li , Rui Huang , Yuqian Fu , Marc Pollefeys , Hermann Blum , Zuria Bauer

In this paper, we propose a training scheme called OVSeg3R to learn open-vocabulary 3D instance segmentation from well-studied 2D perception models with the aid of 3D reconstruction. OVSeg3R directly adopts reconstructed scenes from 2D…

Computer Vision and Pattern Recognition · Computer Science 2026-01-06 Hongyang Li , Jinyuan Qu , Lei Zhang

Multi-camera 3D object detection aims to detect and localize objects in 3D space using multiple cameras, which has attracted more attention due to its cost-effectiveness trade-off. However, these methods often struggle with the lack of…

Computer Vision and Pattern Recognition · Computer Science 2025-01-14 Kun Guo , Qiang Ling

Traditional object detection models in medical imaging operate within a closed-set paradigm, limiting their ability to detect objects of novel labels. Open-vocabulary object detection (OVOD) addresses this limitation but remains…

Computer Vision and Pattern Recognition · Computer Science 2025-11-26 Tooba Tehreem Sheikh , Jean Lahoud , Rao Muhammad Anwer , Fahad Shahbaz Khan , Salman Khan , Hisham Cholakkal