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Accurate and fast scene understanding is one of the challenging task for autonomous driving, which requires to take full advantage of LiDAR point clouds for semantic segmentation. In this paper, we present a \textbf{concise} and…

Computer Vision and Pattern Recognition · Computer Science 2022-07-27 Hui-Xian Cheng , Xian-Feng Han , Guo-Qiang Xiao

Integrating LiDAR and camera information in the bird's eye view (BEV) representation has demonstrated its effectiveness in 3D object detection. However, because of the fundamental disparity in geometric accuracy between these sensors,…

Computer Vision and Pattern Recognition · Computer Science 2025-12-03 Guowen Zhang , Chenhang He , Liyi Chen , Lei Zhang

While data is distributed in multiple edge devices, Federated Learning (FL) is attracting more and more attention to collaboratively train a machine learning model without transferring raw data. FL generally exploits a parameter server and…

Distributed, Parallel, and Cluster Computing · Computer Science 2024-01-09 Juncheng Jia , Ji Liu , Chendi Zhou , Hao Tian , Mianxiong Dong , Dejing Dou

Recently, temporal action detection (TAD) has seen significant performance improvement with end-to-end training. However, due to the memory bottleneck, only models with limited scales and limited data volumes can afford end-to-end training,…

Computer Vision and Pattern Recognition · Computer Science 2024-04-23 Shuming Liu , Chen-Lin Zhang , Chen Zhao , Bernard Ghanem

Temporal Video Grounding (TVG) aims to localize temporal moments in an untrimmed video that semantically correspond to given natural language queries. Recently, Graph Convolutional Networks (GCN) have been widely adopted in TVG to model…

Computer Vision and Pattern Recognition · Computer Science 2026-05-04 Zhanjie Hu , Bolin Zhang , Jianhua Wang , Jianbo Zheng , Chenchen Yan , Takahiro Komamizu , Ichiro Ide , Jiangbo Qian

Predicting conversion from Mild Cognitive Impairment (MCI) to Alzheimer's Disease (AD) is critical for early intervention. Current deep learning paradigms predominantly rely on cross-sectional structural MRI, neglecting prognostic value in…

Computer Vision and Pattern Recognition · Computer Science 2026-05-28 Alireza Moayedikia , Sara Fin , Alicia Troncoso Lora , Uffe Kock Wiil

Detecting objects in 3D LiDAR data is a core technology for autonomous driving and other robotics applications. Although LiDAR data is acquired over time, most of the 3D object detection algorithms propose object bounding boxes…

Computer Vision and Pattern Recognition · Computer Science 2020-07-27 Rui Huang , Wanyue Zhang , Abhijit Kundu , Caroline Pantofaru , David A Ross , Thomas Funkhouser , Alireza Fathi

Recent learning-based inpainting algorithms have achieved compelling results for completing missing regions after removing undesired objects in videos. To maintain the temporal consistency among the frames, 3D spatial and temporal…

Computer Vision and Pattern Recognition · Computer Science 2021-11-08 Vishnu Sanjay Ramiya Srinivasan , Rui Ma , Qiang Tang , Zili Yi , Zhan Xu

As a fundamental task in long-form video understanding, temporal action detection (TAD) aims to capture inherent temporal relations in untrimmed videos and identify candidate actions with precise boundaries. Over the years, various…

Computer Vision and Pattern Recognition · Computer Science 2024-07-29 Shuming Liu , Lin Sui , Chen-Lin Zhang , Fangzhou Mu , Chen Zhao , Bernard Ghanem

We present LlamaSeg, a visual autoregressive framework that unifies multiple image segmentation tasks via natural language instructions. We reformulate image segmentation as a visual generation problem, representing masks as "visual" tokens…

Computer Vision and Pattern Recognition · Computer Science 2025-05-27 Jiru Deng , Tengjin Weng , Tianyu Yang , Wenhan Luo , Zhiheng Li , Wenhao Jiang

Segmenting or detecting objects in sparse Lidar point clouds are two important tasks in autonomous driving to allow a vehicle to act safely in its 3D environment. The best performing methods in 3D semantic segmentation or object detection…

Computer Vision and Pattern Recognition · Computer Science 2022-03-31 Corentin Sautier , Gilles Puy , Spyros Gidaris , Alexandre Boulch , Andrei Bursuc , Renaud Marlet

This paper presents TE-NeXt, a novel and efficient architecture for Traversability Estimation (TE) from sparse LiDAR point clouds based on a residual convolution block. TE-NeXt block fuses notions of current trends such as attention…

Computer Vision and Pattern Recognition · Computer Science 2025-09-03 Antonio Santo , Juan J. Cabrera , David Valiente , Carlos Viegas , Arturo Gil

Researchers have long tried to minimize training costs in deep learning while maintaining strong generalization across diverse datasets. Emerging research on dataset distillation aims to reduce training costs by creating a small synthetic…

Computer Vision and Pattern Recognition · Computer Science 2025-03-25 Ahmad Sajedi , Samir Khaki , Ehsan Amjadian , Lucy Z. Liu , Yuri A. Lawryshyn , Konstantinos N. Plataniotis

Autonomous driving requires an accurate representation of the environment. A strategy toward high accuracy is to fuse data from several sensors. Learned Bird's-Eye View (BEV) encoders can achieve this by mapping data from individual sensors…

Computer Vision and Pattern Recognition · Computer Science 2024-09-20 Thomas Monninger , Vandana Dokkadi , Md Zafar Anwar , Steffen Staab

We present SAM4D, a multi-modal and temporal foundation model designed for promptable segmentation across camera and LiDAR streams. Unified Multi-modal Positional Encoding (UMPE) is introduced to align camera and LiDAR features in a shared…

Computer Vision and Pattern Recognition · Computer Science 2025-06-27 Jianyun Xu , Song Wang , Ziqian Ni , Chunyong Hu , Sheng Yang , Jianke Zhu , Qiang Li

We propose Text-Aligned Speech Tokens with Multiple Layer-Aggregation (TASLA), which is a text-aligned speech tokenization framework that aims to address the problem that under a low-frame-rate and text-aligned regime, single-source speech…

Sound · Computer Science 2025-10-17 Ming-Hao Hsu , Liang-Hsuan Tseng , Hung-yi Lee , Zhizheng Wu

3D object detection is a core component of automated driving systems. State-of-the-art methods fuse RGB imagery and LiDAR point cloud data frame-by-frame for 3D bounding box regression. However, frame-by-frame 3D object detection suffers…

Computer Vision and Pattern Recognition · Computer Science 2021-05-24 Emeç Erçelik , Ekim Yurtsever , Alois Knoll

Dataset distillation (DD) has emerged as a powerful paradigm for dataset compression, enabling the synthesis of compact surrogate datasets that approximate the training utility of large-scale ones. While significant progress has been…

Computer Vision and Pattern Recognition · Computer Science 2025-05-28 Xulin Gu , Xinhao Zhong , Zhixing Wei , Yimin Zhou , Shuoyang Sun , Bin Chen , Hongpeng Wang , Yuan Luo

Temporal graphs exhibit dynamic interactions between nodes over continuous time, whose topologies evolve with time elapsing. The whole temporal neighborhood of nodes reveals the varying preferences of nodes. However, previous works usually…

Machine Learning · Computer Science 2023-04-18 Tongya Zheng , Xinchao Wang , Zunlei Feng , Jie Song , Yunzhi Hao , Mingli Song , Xingen Wang , Xinyu Wang , Chun Chen

In this paper, we investigate over-the-air model aggregation in a federated edge learning (FEEL) system. We introduce a Markovian probability model to characterize the intrinsic temporal structure of the model aggregation series. With this…

Information Theory · Computer Science 2021-03-04 Dian Fan , Xiaojun Yuan , Ying-Jun Angela Zhang