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Related papers: AdaCoSeg: Adaptive Shape Co-Segmentation with Grou…

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Learning dense point-wise semantics from unstructured 3D point clouds with fewer labels, although a realistic problem, has been under-explored in literature. While existing weakly supervised methods can effectively learn semantics with only…

Computer Vision and Pattern Recognition · Computer Science 2022-01-11 Yan Liu , Qingyong Hu , Yinjie Lei , Kai Xu , Jonathan Li , Yulan Guo

Recent works have shown that the computational efficiency of video recognition can be significantly improved by reducing the spatial redundancy. As a representative work, the adaptive focus method (AdaFocus) has achieved a favorable…

Computer Vision and Pattern Recognition · Computer Science 2022-04-13 Yulin Wang , Yang Yue , Yuanze Lin , Haojun Jiang , Zihang Lai , Victor Kulikov , Nikita Orlov , Humphrey Shi , Gao Huang

Learning with guidance has proven effective across a wide range of machine learning systems. Guidance may, for example, come from annotated datasets in supervised learning, pseudo-labels in semi-supervised learning, and expert demonstration…

Machine Learning · Computer Science 2025-10-01 Rui Liu , Peng Gao , Yu Shen , Ming Lin , Pratap Tokekar

Point cloud is a principal data structure adopted for 3D geometric information encoding. Unlike other conventional visual data, such as images and videos, these irregular points describe the complex shape features of 3D objects, which makes…

Computer Vision and Pattern Recognition · Computer Science 2020-04-21 Chaoyi Zhang , Yang Song , Lina Yao , Weidong Cai

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

A fast and accurate panoptic segmentation system for LiDAR point clouds is crucial for autonomous driving vehicles to understand the surrounding objects and scenes. Existing approaches usually rely on proposals or clustering to segment…

Computer Vision and Pattern Recognition · Computer Science 2023-02-06 Enxu Li , Ryan Razani , Yixuan Xu , Bingbing Liu

Deep neural network-based semantic segmentation generally requires large-scale cost extensive annotations for training to obtain better performance. To avoid pixel-wise segmentation annotations which are needed for most methods, recently…

Computer Vision and Pattern Recognition · Computer Science 2018-12-31 Longlong Jing , Yucheng Chen , Yingli Tian

To fully understand the 3D context of a single image, a visual system must be able to segment both the visible and occluded regions of objects, while discerning their occlusion order. Ideally, the system should be able to handle any object…

Computer Vision and Pattern Recognition · Computer Science 2024-05-10 Jiayang Ao , Qiuhong Ke , Krista A. Ehinger

Representing complex 3D objects as simple geometric primitives, known as shape abstraction, is important for geometric modeling, structural analysis, and shape synthesis. In this paper, we propose an unsupervised shape abstraction method to…

Computer Vision and Pattern Recognition · Computer Science 2021-06-08 Kaizhi Yang , Xuejin Chen

Reconstruction-based methods have demonstrated very promising results for 3D anomaly detection. However, these methods face great challenges in handling high-precision point clouds due to the large scale and complex structure. In this…

Computer Vision and Pattern Recognition · Computer Science 2025-09-17 Hanzhe Liang , Jie Zhang , Tao Dai , Linlin Shen , Jinbao Wang , Can Gao

State-of-the-art semantic segmentation models are characterized by high parameter counts and slow inference times, making them unsuitable for deployment in resource-constrained environments. To address this challenge, we propose…

Computer Vision and Pattern Recognition · Computer Science 2022-12-29 Konstantin Ditschuneit , Johannes S. Otterbach

To better address challenging issues of the irregularity and inhomogeneity inherently present in 3D point clouds, researchers have been shifting their focus from the design of hand-craft point feature towards the learning of 3D point…

Computer Vision and Pattern Recognition · Computer Science 2022-11-21 Xiang Li , Mingyang Wang , Congcong Wen , Lingjing Wang , Nan Zhou , Yi Fang

Producing quality segmentation masks for images is a fundamental problem in computer vision. Recent research has explored large-scale supervised training to enable zero-shot segmentation on virtually any image style and unsupervised…

Computer Vision and Pattern Recognition · Computer Science 2024-04-03 Junjiao Tian , Lavisha Aggarwal , Andrea Colaco , Zsolt Kira , Mar Gonzalez-Franco

Curvilinear structure segmentation is important in medical imaging, quantifying structures such as vessels, airways, neurons, or organ boundaries in 2D slices. Segmentation via pixel-wise classification often fails to capture the small and…

Image and Video Processing · Electrical Eng. & Systems 2023-03-07 Manxi Lin , Zahra Bashir , Martin Grønnebæk Tolsgaard , Anders Nymark Christensen , Aasa Feragen

Convolution on 3D point clouds that generalized from 2D grid-like domains is widely researched yet far from perfect. The standard convolution characterises feature correspondences indistinguishably among 3D points, presenting an intrinsic…

Computer Vision and Pattern Recognition · Computer Science 2021-08-20 Haoran Zhou , Yidan Feng , Mingsheng Fang , Mingqiang Wei , Jing Qin , Tong Lu

Video co-segmentation refers to the task of jointly segmenting common objects appearing in a given group of videos. In practice, high-dimensional data such as videos can be conceptually thought as being drawn from a union of subspaces…

Computer Vision and Pattern Recognition · Computer Science 2021-04-29 Junlin Yao , Frank Nielsen

Given a 3D surface defined by an elevation function on a 2D grid as well as non-spatial features observed at each pixel, the problem of surface segmentation aims to classify pixels into contiguous classes based on both non-spatial features…

Computer Vision and Pattern Recognition · Computer Science 2020-08-27 Wenchong He , Arpan Man Sainju , Zhe Jiang , Da Yan

Training machine learning models on massive datasets incurs substantial computational costs. To alleviate such costs, there has been a sustained effort to develop data-efficient training methods that can carefully select subsets of the…

Machine Learning · Computer Science 2022-08-01 Omead Pooladzandi , David Davini , Baharan Mirzasoleiman

We introduce COALESCE, the first data-driven framework for component-based shape assembly which employs deep learning to synthesize part connections. To handle geometric and topological mismatches between parts, we remove the mismatched…

Computer Vision and Pattern Recognition · Computer Science 2020-11-10 Kangxue Yin , Zhiqin Chen , Siddhartha Chaudhuri , Matthew Fisher , Vladimir G. Kim , Hao Zhang

Accurate segmentation and measurement of lithography scanning electron microscope (SEM) images are crucial for ensuring precise process control, optimizing device performance, and advancing semiconductor manufacturing yield. Lithography…

Computer Vision and Pattern Recognition · Computer Science 2025-11-18 Xinyu He , Botong Zhao , Bingbing Li , Shujing Lyu , Jiwei Shen , Yue Lu