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Panoptic segmentation of 3D scenes, involving the segmentation and classification of object instances in a dense 3D reconstruction of a scene, is a challenging problem, especially when relying solely on unposed 2D images. Existing…

Computer Vision and Pattern Recognition · Computer Science 2025-06-27 Lojze Zust , Yohann Cabon , Juliette Marrie , Leonid Antsfeld , Boris Chidlovskii , Jerome Revaud , Gabriela Csurka

With the rapid advances of autonomous driving, it becomes critical to equip its sensing system with more holistic 3D perception. However, existing works focus on parsing either the objects (e.g. cars and pedestrians) or scenes (e.g. trees…

Computer Vision and Pattern Recognition · Computer Science 2020-12-02 Fangzhou Hong , Hui Zhou , Xinge Zhu , Hongsheng Li , Ziwei Liu

Manually annotating complex scene point cloud datasets is both costly and error-prone. To reduce the reliance on labeled data, a new model called SnapshotNet is proposed as a self-supervised feature learning approach, which directly works…

Computer Vision and Pattern Recognition · Computer Science 2022-01-14 Xingye Li , Ling Zhang , Zhigang Zhu

3D Point clouds (PCs) are commonly used to represent 3D scenes. They can have millions of points, making subsequent downstream tasks such as compression and streaming computationally expensive. PC sampling (selecting a subset of points) can…

Image and Video Processing · Electrical Eng. & Systems 2024-10-03 Shashank N. Sridhara , Eduardo Pavez , Ajinkya Jayawant , Antonio Ortega , Ryosuke Watanabe , Keisuke Nonaka

In contrast to the literature where local patterns in 3D point clouds are captured by customized convolutional operators, in this paper we study the problem of how to effectively and efficiently project such point clouds into a 2D image…

Computer Vision and Pattern Recognition · Computer Science 2020-10-09 Yecheng Lyu , Xinming Huang , Ziming Zhang

Panoptic segmentation, which is a novel task of unifying instance segmentation and semantic segmentation, has attracted a lot of attention lately. However, most of the previous methods are composed of multiple pathways with each pathway…

Computer Vision and Pattern Recognition · Computer Science 2020-12-07 Sukjun Hwang , Seoung Wug Oh , Seon Joo Kim

Image segmentation for video analysis plays an essential role in different research fields such as smart city, healthcare, computer vision and geoscience, and remote sensing applications. In this regard, a significant effort has been…

Computer Vision and Pattern Recognition · Computer Science 2021-11-22 Omar Elharrouss , Somaya Al-Maadeed , Nandhini Subramanian , Najmath Ottakath , Noor Almaadeed , Yassine Himeur

The growing size of point clouds enlarges consumptions of storage, transmission, and computation of 3D scenes. Raw data is redundant, noisy, and non-uniform. Therefore, simplifying point clouds for achieving compact, clean, and uniform…

Computer Vision and Pattern Recognition · Computer Science 2022-03-18 Yuanqi Li , Jianwei Guo , Xinran Yang , Shun Liu , Jie Guo , Xiaopeng Zhang , Yanwen Guo

Point cloud segmentation is one of the most important tasks in computer vision with widespread scientific, industrial, and commercial applications. The research thereof has resulted in many breakthroughs in 3D object and scene…

Computer Vision and Pattern Recognition · Computer Science 2023-06-16 Dening Lu , Jun Zhou , Kyle Yilin Gao , Dilong Li , Jing Du , Linlin Xu , Jonathan Li

Panoptic segmentation as an integrated task of both static environmental understanding and dynamic object identification, has recently begun to receive broad research interest. In this paper, we propose a new computationally efficient LiDAR…

Computer Vision and Pattern Recognition · Computer Science 2021-08-20 Ryan Razani , Ran Cheng , Enxu Li , Ehsan Taghavi , Yuan Ren , Liu Bingbing

Instance segmentation on 3D point clouds is one of the most extensively researched areas toward the realization of autonomous cars and robots. Certain existing studies have split input point clouds into small regions such as 1m x 1m; one…

Machine Learning · Computer Science 2019-09-30 Kosuke Arase , Yusuke Mukuta , Tatsuya Harada

The recent success of neural networks enables a better interpretation of 3D point clouds, but processing a large-scale 3D scene remains a challenging problem. Most current approaches divide a large-scale scene into small regions and combine…

Computer Vision and Pattern Recognition · Computer Science 2022-04-05 Chunghyun Park , Yoonwoo Jeong , Minsu Cho , Jaesik Park

Semantic segmentation of LiDAR point clouds is an important task in autonomous driving. However, training deep models via conventional supervised methods requires large datasets which are costly to label. It is critical to have…

Computer Vision and Pattern Recognition · Computer Science 2022-10-18 Minghua Liu , Yin Zhou , Charles R. Qi , Boqing Gong , Hao Su , Dragomir Anguelov

Open-vocabulary panoptic reconstruction is a challenging task for simultaneous scene reconstruction and understanding. Recently, methods have been proposed for 3D scene understanding based on Gaussian splatting. However, these methods are…

Computer Vision and Pattern Recognition · Computer Science 2025-03-25 Yuxuan Xie , Xuan Yu , Changjian Jiang , Sitong Mao , Shunbo Zhou , Rui Fan , Rong Xiong , Yue Wang

While deep learning-based methods have demonstrated outstanding results in numerous domains, some important functionalities are missing. Resolution scalability is one of them. In this work, we introduce a novel architecture, dubbed…

Computer Vision and Pattern Recognition · Computer Science 2024-04-11 Remco Royen , Adrian Munteanu

Panoptic segmentation combines instance and semantic predictions, allowing the detection of "things" and "stuff" simultaneously. Effectively approaching panoptic segmentation in remotely sensed data can be auspicious in many challenging…

Panoptic segmentation is a scene parsing task which unifies semantic segmentation and instance segmentation into one single task. However, the current state-of-the-art studies did not take too much concern on inference time. In this work,…

Computer Vision and Pattern Recognition · Computer Science 2021-07-14 Chia-Yuan Chang , Shuo-En Chang , Pei-Yung Hsiao , Li-Chen Fu

We present a novel end-to-end single-shot method that segments countable object instances (things) as well as background regions (stuff) into a non-overlapping panoptic segmentation at almost video frame rate. Current state-of-the-art…

Computer Vision and Pattern Recognition · Computer Science 2020-09-01 Mark Weber , Jonathon Luiten , Bastian Leibe

We introduce PointGauss, a novel point cloud-guided framework for real-time multi-object segmentation in Gaussian Splatting representations. Unlike existing methods that suffer from prolonged initialization and limited multi-view…

Computer Vision and Pattern Recognition · Computer Science 2025-08-04 Wentao Sun , Hanqing Xu , Quanyun Wu , Dedong Zhang , Yiping Chen , Lingfei Ma , John S. Zelek , Jonathan Li

Instance segmentation in 3D is a challenging task due to the lack of large-scale annotated datasets. In this paper, we show that this task can be addressed effectively by leveraging instead 2D pre-trained models for instance segmentation.…

Computer Vision and Pattern Recognition · Computer Science 2023-12-05 Yash Bhalgat , Iro Laina , João F. Henriques , Andrew Zisserman , Andrea Vedaldi