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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

The classification of airborne laser scanning (ALS) point clouds is a critical task of remote sensing and photogrammetry fields. Although recent deep learning-based methods have achieved satisfactory performance, they have ignored the…

Computer Vision and Pattern Recognition · Computer Science 2022-07-22 Yongqiang Mao , Kaiqiang Chen , Wenhui Diao , Xian Sun , Xiaonan Lu , Kun Fu , Martin Weinmann

Spatial attention mechanism has been widely used in semantic segmentation of remote sensing images given its capability to model long-range dependencies. Many methods adopting spatial attention mechanism aggregate contextual information…

Computer Vision and Pattern Recognition · Computer Science 2023-04-25 Xiaowen Ma , Rui Che , Tingfeng Hong , Mengting Ma , Ziyan Zhao , Tian Feng , Wei Zhang

Real-time semantic segmentation plays a significant role in industry applications, such as autonomous driving, robotics and so on. It is a challenging task as both efficiency and performance need to be considered simultaneously. To address…

Computer Vision and Pattern Recognition · Computer Science 2019-11-19 Haiyang Si , Zhiqiang Zhang , Feifan Lv , Gang Yu , Feng Lu

In this paper, we introduce a deep encoder-decoder network, named SalsaNet, for efficient semantic segmentation of 3D LiDAR point clouds. SalsaNet segments the road, i.e. drivable free-space, and vehicles in the scene by employing the…

Computer Vision and Pattern Recognition · Computer Science 2020-05-07 Eren Erdal Aksoy , Saimir Baci , Selcuk Cavdar

The increasing demand for intelligent mobile applications has made multi-agent collaboration with Transformer-based large language models (LLMs) essential in mobile edge computing (MEC) networks. However, training LLMs in such environments…

Systems and Control · Electrical Eng. & Systems 2025-09-25 Jiewei Chen , Xiumei Deng , Zehui Xiong , Shaoyong Guo , Xuesong Qiu , Ping Wang , Dusit Niyato

Sparse attention methods exploit the inherent sparsity in attention to speed up the prefilling phase of long-context inference, mitigating the quadratic complexity of full attention computation. While existing sparse attention methods rely…

Machine Learning · Computer Science 2025-05-27 Dan Peng , Zhihui Fu , Zewen Ye , Zhuoran Song , Jun Wang

In this paper, we proposed large selective kernel and sparse attention network (LSKSANet) for remote sensing image semantic segmentation. The LSKSANet is a lightweight network that effectively combines convolution with sparse attention…

Image and Video Processing · Electrical Eng. & Systems 2024-06-04 Miao Fu , Feng Gao , Ruzhuang Hua , Yanhai Gan , Xiaowei Zhou , Yang Zhou

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

The increasingly deeper neural networks hinder the democratization of privacy-enhancing distributed learning, such as federated learning (FL), to resource-constrained devices. To overcome this challenge, in this paper, we advocate the…

Machine Learning · Computer Science 2024-01-25 Zheng Lin , Guangyu Zhu , Yiqin Deng , Xianhao Chen , Yue Gao , Kaibin Huang , Yuguang Fang

We study the problem of efficient semantic segmentation of large-scale 3D point clouds. By relying on expensive sampling techniques or computationally heavy pre/post-processing steps, most existing approaches are only able to be trained and…

Computer Vision and Pattern Recognition · Computer Science 2021-07-07 Qingyong Hu , Bo Yang , Linhai Xie , Stefano Rosa , Yulan Guo , Zhihua Wang , Niki Trigoni , Andrew Markham

Current Scene text image super-resolution approaches primarily focus on extracting robust features, acquiring text information, and complex training strategies to generate super-resolution images. However, the upsampling module, which is…

Computer Vision and Pattern Recognition · Computer Science 2023-09-19 Wenyu Zhang , Xin Deng , Baojun Jia , Xingtong Yu , Yifan Chen , jin Ma , Qing Ding , Xinming Zhang

Semantic segmentation serves as a cornerstone of scene understanding in autonomous driving but continues to face significant challenges under complex conditions such as occlusion. Light field and LiDAR modalities provide complementary…

Computer Vision and Pattern Recognition · Computer Science 2026-04-16 Jie Luo , Yuxuan Jiang , Xin Jin , Mingyu Liu , Yihui Fan

In this case study, we present a data-efficient point cloud segmentation pipeline and training framework for robust segmentation of unimproved roads and seven other classes. Our method employs a two-stage training framework: first, a…

Image and Video Processing · Electrical Eng. & Systems 2025-08-29 Andrew Yarovoi , Christopher R. Valenta

In this paper, we propose a deep hierarchical attention context model for lossless attribute compression of point clouds, leveraging a multi-resolution spatial structure and residual learning. A simple and effective Level of Detail (LoD)…

Computer Vision and Pattern Recognition · Computer Science 2025-04-02 Yueru Chen , Wei Zhang , Dingquan Li , Jing Wang , Ge Li

LiDAR sensor is essential to the perception system in autonomous vehicles and intelligent robots. To fulfill the real-time requirements in real-world applications, it is necessary to efficiently segment the LiDAR scans. Most of previous…

Computer Vision and Pattern Recognition · Computer Science 2022-09-16 Song Wang , Jianke Zhu , Ruixiang Zhang

Semantic segmentation for extracting buildings and roads from uncrewed aerial vehicle (UAV) remote sensing images by deep learning becomes a more efficient and convenient method than traditional manual segmentation in surveying and mapping…

Computer Vision and Pattern Recognition · Computer Science 2023-07-07 Xiaoxiang Han , Yiman Liu , Gang Liu , Yuanjie Lin , Qiaohong Liu

Large Language Models (LLMs) face efficiency bottlenecks due to the quadratic complexity of the attention mechanism when processing long contexts. Sparse attention methods offer a promising solution, but existing approaches often suffer…

Computation and Language · Computer Science 2025-03-06 Lida Chen , Dong Xu , Chenxin An , Xintao Wang , Yikai Zhang , Jiangjie Chen , Zujie Liang , Feng Wei , Jiaqing Liang , Yanghua Xiao , Wei Wang

We propose SparsePipe, an efficient and asynchronous parallelism approach for handling 3D point clouds with multi-GPU training. SparsePipe is built to support 3D sparse data such as point clouds. It achieves this by adopting generalized…

Computer Vision and Pattern Recognition · Computer Science 2020-12-29 Keke Zhai , Pan He , Tania Banerjee , Anand Rangarajan , Sanjay Ranka

3D point cloud segmentation has made tremendous progress in recent years. Most current methods focus on aggregating local features, but fail to directly model long-range dependencies. In this paper, we propose Stratified Transformer that is…

Computer Vision and Pattern Recognition · Computer Science 2022-03-29 Xin Lai , Jianhui Liu , Li Jiang , Liwei Wang , Hengshuang Zhao , Shu Liu , Xiaojuan Qi , Jiaya Jia