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Panoptic segmentation has recently unified semantic and instance segmentation, previously addressed separately, thus taking a step further towards creating more comprehensive and efficient perception systems. In this paper, we present…

Computer Vision and Pattern Recognition · Computer Science 2023-08-22 Stefano Gasperini , Mohammad-Ali Nikouei Mahani , Alvaro Marcos-Ramiro , Nassir Navab , Federico Tombari

Semantic segmentation of 3D point clouds is a challenging problem with numerous real-world applications. While deep learning has revolutionized the field of image semantic segmentation, its impact on point cloud data has been limited so…

Computer Vision and Pattern Recognition · Computer Science 2017-05-10 Felix Järemo Lawin , Martin Danelljan , Patrik Tosteberg , Goutam Bhat , Fahad Shahbaz Khan , Michael Felsberg

Traditionally, algorithms that learn to segment object instances in 2D images have heavily relied on large amounts of human-annotated data. Only recently, novel approaches have emerged tackling this problem in an unsupervised fashion.…

Computer Vision and Pattern Recognition · Computer Science 2025-07-25 Leon Sick , Dominik Engel , Sebastian Hartwig , Pedro Hermosilla , Timo Ropinski

This paper introduces a novel approach for 3D semantic instance segmentation on point clouds. A 3D convolutional neural network called submanifold sparse convolutional network is used to generate semantic predictions and instance embeddings…

Computer Vision and Pattern Recognition · Computer Science 2021-03-24 Zhidong Liang , Ming Yang , Chunxiang Wang

Current 3D instance segmentation models generally use multi-stage methods to extract instance objects, including clustering, feature extraction, and post-processing processes. However, these multi-stage approaches rely on hyperparameter…

Computer Vision and Pattern Recognition · Computer Science 2023-03-14 Chuan Tang , Xi Yang

The field of 4D point cloud understanding is rapidly developing with the goal of analyzing dynamic 3D point cloud sequences. However, it remains a challenging task due to the sparsity and lack of texture in point clouds. Moreover, the…

Computer Vision and Pattern Recognition · Computer Science 2023-12-13 Linglin Jing , Ying Xue , Xu Yan , Chaoda Zheng , Dong Wang , Ruimao Zhang , Zhigang Wang , Hui Fang , Bin Zhao , Zhen Li

Although perception systems have made remarkable advancements in recent years, particularly in 2D reasoning segmentation, these systems still rely on explicit human instruction or pre-defined categories to identify target objects before…

Computer Vision and Pattern Recognition · Computer Science 2025-06-06 Kunshen Zhang

3D Cloth modeling and simulation is essential for avatars creation in several fields, such as fashion, entertainment, and animation. Achieving high-quality results is challenging due to the large variability of clothed body especially in…

Graphics · Computer Science 2025-08-08 Davide Garavaso , Federico Masi , Pietro Musoni , Umberto Castellani

Deep learning with 3D data such as reconstructed point clouds and CAD models has received great research interests recently. However, the capability of using point clouds with convolutional neural network has been so far not fully explored.…

Computer Vision and Pattern Recognition · Computer Science 2018-03-30 Binh-Son Hua , Minh-Khoi Tran , Sai-Kit Yeung

3D point clouds are rich in geometric structure information, while 2D images contain important and continuous texture information. Combining 2D information to achieve better 3D semantic segmentation has become mainstream in 3D scene…

Computer Vision and Pattern Recognition · Computer Science 2022-12-14 Chaolong Yang , Yuyao Yan , Weiguang Zhao , Jianan Ye , Xi Yang , Amir Hussain , Kaizhu Huang

With the capacity of modeling long-range dependencies in sequential data, transformers have shown remarkable performances in a variety of generative tasks such as image, audio, and text generation. Yet, taming them in generating less…

Computer Vision and Pattern Recognition · Computer Science 2022-04-06 An-Chieh Cheng , Xueting Li , Sifei Liu , Min Sun , Ming-Hsuan Yang

In this work, we address various segmentation tasks, each traditionally tackled by distinct or partially unified models. We propose OMG-Seg, One Model that is Good enough to efficiently and effectively handle all the segmentation tasks,…

Computer Vision and Pattern Recognition · Computer Science 2024-10-02 Xiangtai Li , Haobo Yuan , Wei Li , Henghui Ding , Size Wu , Wenwei Zhang , Yining Li , Kai Chen , Chen Change Loy

We present a mask-piloted Transformer which improves masked-attention in Mask2Former for image segmentation. The improvement is based on our observation that Mask2Former suffers from inconsistent mask predictions between consecutive decoder…

Computer Vision and Pattern Recognition · Computer Science 2023-03-16 Hao Zhang , Feng Li , Huaizhe Xu , Shijia Huang , Shilong Liu , Lionel M. Ni , Lei Zhang

Instance segmentation in point clouds is one of the most fine-grained ways to understand the 3D scene. Due to its close relationship to semantic segmentation, many works approach these two tasks simultaneously and leverage the benefits of…

Computer Vision and Pattern Recognition · Computer Science 2020-03-12 Guangnan Wu , Zhiyi Pan , Peng Jiang , Changhe Tu

Holistic 3D scene understanding involves capturing and parsing unstructured 3D environments. Due to the inherent complexity of the real world, existing models have predominantly been developed and limited to be task-specific. We introduce…

Computer Vision and Pattern Recognition · Computer Science 2025-12-19 Sebastian Koch , Johanna Wald , Hidenobu Matsuki , Pedro Hermosilla , Timo Ropinski , Federico Tombari

In the field of medical imaging, AI-assisted techniques such as object detection, segmentation, and classification are widely employed to alleviate the workload of physicians and doctors. However, single-task models are predominantly used,…

Image and Video Processing · Electrical Eng. & Systems 2025-11-18 Fan Li , Arun Iyengar , Lanyu Xu

Online, real-time, and fine-grained 3D segmentation constitutes a fundamental capability for embodied intelligent agents to perceive and comprehend their operational environments. Recent advancements employ predefined object queries to…

Computer Vision and Pattern Recognition · Computer Science 2025-12-09 Hanshi Wang , Zijian Cai , Jin Gao , Yiwei Zhang , Weiming Hu , Ke Wang , Zhipeng Zhang

Pre-trained large-scale models have exhibited remarkable efficacy in computer vision, particularly for 2D image analysis. However, when it comes to 3D point clouds, the constrained accessibility of data, in contrast to the vast repositories…

Computer Vision and Pattern Recognition · Computer Science 2024-08-06 Mengke Li , Da Li , Guoqing Yang , Yiu-ming Cheung , Hui Huang

Remarkable performance from Transformer networks in Natural Language Processing promote the development of these models in dealing with computer vision tasks such as image recognition and segmentation. In this paper, we introduce a novel…

Computer Vision and Pattern Recognition · Computer Science 2022-10-26 Qi Zhong , Xian-Feng Han

Recently, 3D understanding research sheds light on extracting features from point cloud directly, which requires effective shape pattern description of point clouds. Inspired by the outstanding 2D shape descriptor SIFT, we design a module…

Computer Vision and Pattern Recognition · Computer Science 2018-11-27 Mingyang Jiang , Yiran Wu , Tianqi Zhao , Zelin Zhao , Cewu Lu