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Event cameras have the potential to capture continuous motion information over time and space, making them well-suited for optical flow estimation. However, most existing learning-based methods for event-based optical flow adopt frame-based…

计算机视觉与模式识别 · 计算机科学 2025-12-01 Zuntao Liu , Hao Zhuang , Junjie Jiang , Yuhang Song , Zheng Fang

We propose DOME, a diffusion-based world model that predicts future occupancy frames based on past occupancy observations. The ability of this world model to capture the evolution of the environment is crucial for planning in autonomous…

计算机视觉与模式识别 · 计算机科学 2024-10-15 Songen Gu , Wei Yin , Bu Jin , Xiaoyang Guo , Junming Wang , Haodong Li , Qian Zhang , Xiaoxiao Long

The task of occupancy forecasting (OCF) involves utilizing past and present perception data to predict future occupancy states of autonomous vehicle surrounding environments, which is critical for downstream tasks such as obstacle avoidance…

计算机视觉与模式识别 · 计算机科学 2024-11-22 Jingyi Xu , Xieyuanli Chen , Junyi Ma , Jiawei Huang , Jintao Xu , Yue Wang , Ling Pei

Optical flow is the motion of a pixel between at least two consecutive video frames and can be estimated through an end-to-end trainable convolutional neural network. To this end, large training datasets are required to improve the accuracy…

计算机视觉与模式识别 · 计算机科学 2021-04-19 Roman Seidel , André Apitzsch , Gangolf Hirtz

This study develops FusionTransNet, a framework designed for Origin-Destination (OD) flow predictions within smart and multimodal urban transportation systems. Urban transportation complexity arises from the spatiotemporal interactions…

机器学习 · 计算机科学 2024-05-10 Binwu Wang , Yan Leng , Guang Wang , Yang Wang

Understanding 3D scenes is a critical prerequisite for autonomous agents. Recently, LiDAR and other sensors have made large amounts of data available in the form of temporal sequences of point cloud frames. In this work, we propose a novel…

计算机视觉与模式识别 · 计算机科学 2021-11-18 Pan He , Patrick Emami , Sanjay Ranka , Anand Rangarajan

We reframe scene flow as the task of estimating a continuous space-time ODE that describes motion for an entire observation sequence, represented with a neural prior. Our method, EulerFlow, optimizes this neural prior estimate against…

计算机视觉与模式识别 · 计算机科学 2025-12-08 Kyle Vedder , Neehar Peri , Ishan Khatri , Siyi Li , Eric Eaton , Mehmet Kocamaz , Yue Wang , Zhiding Yu , Deva Ramanan , Joachim Pehserl

3D semantic occupancy prediction plays a pivotal role in autonomous driving. However, inherent limitations of fewframe images and redundancy in 3D space compromise prediction accuracy for occluded and distant scenes. Existing methods…

计算机视觉与模式识别 · 计算机科学 2025-07-04 Jiangxia Chen , Tongyuan Huang , Ke Song

We introduce and study the problem of computing the similarity self-join in a streaming context (SSSJ), where the input is an unbounded stream of items arriving continuously. The goal is to find all pairs of items in the stream whose…

数据库 · 计算机科学 2016-03-09 Gianmarco De Francisci Morales , Aristides Gionis

Multimodal Large Language Models have achieved significant success in offline video understanding, yet their application to streaming videos is severely limited by the linear explosion of visual tokens, which often leads to Out-of-Memory…

计算机视觉与模式识别 · 计算机科学 2026-03-23 Chao Wang , Xudong Tan , Jianjian Cao , Kangcong Li , Tao Chen

Standard frame-based cameras that sample light intensity frames are heavily impacted by motion blur for high-speed motion and fail to perceive scene accurately when the dynamic range is high. Event-based cameras, on the other hand, overcome…

计算机视觉与模式识别 · 计算机科学 2021-03-22 Chankyu Lee , Adarsh Kumar Kosta , Kaushik Roy

The occlusion problem remains a crucial challenge in optical flow estimation (OFE). Despite the recent significant progress brought about by deep learning, most existing deep learning OFE methods still struggle to handle occlusions; in…

计算机视觉与模式识别 · 计算机科学 2024-03-05 Bo Wang , Yifan Zhang , Jian Li , Yang Yu , Zhenping Sun , Li Liu , Dewen Hu

Dynamic behaviors are becoming prevalent in tensor applications, like machine learning, where many widely used models contain data-dependent tensor shapes and control flow. However, the limited expressiveness of prior programming…

Unsupervised video object segmentation (UVOS) aims at detecting the primary objects in a given video sequence without any human interposing. Most existing methods rely on two-stream architectures that separately encode the appearance and…

计算机视觉与模式识别 · 计算机科学 2023-12-01 Lingyi Hong , Wei Zhang , Shuyong Gao , Hong Lu , WenQiang Zhang

Network traffic analysis increasingly uses complex machine learning models as the internet consolidates and traffic gets more encrypted. However, over high-bandwidth networks, flows can easily arrive faster than model inference rates. The…

网络与互联网体系结构 · 计算机科学 2024-10-25 Shinan Liu , Ted Shaowang , Gerry Wan , Jeewon Chae , Jonatas Marques , Sanjay Krishnan , Nick Feamster

For visual estimation of optical flow, a crucial function for many vision tasks, unsupervised learning, using the supervision of view synthesis has emerged as a promising alternative to supervised methods, since ground-truth flow is not…

计算机视觉与模式识别 · 计算机科学 2023-04-17 Zitang Sun , Shin'ya Nishida , Zhengbo Luo

For autonomous vehicles to proactively plan safe trajectories and make informed decisions, they must be able to predict the future occupancy states of the local environment. However, common issues with occupancy prediction include…

机器人学 · 计算机科学 2024-04-15 Maneekwan Toyungyernsub , Esen Yel , Jiachen Li , Mykel J. Kochenderfer

Streaming data analysis is increasingly required in applications, e.g., IoT, cybersecurity, robotics, mechatronics or cyber-physical systems. Despite its relevance, it is still an emerging field with open challenges. SDO is a recent anomaly…

机器学习 · 计算机科学 2024-09-06 Alexander Hartl , Félix Iglesias Vázquez , Tanja Zseby

A popular approach to streaming speech translation is to employ a single offline model with a wait-k policy to support different latency requirements, which is simpler than training multiple online models with different latency constraints.…

计算与语言 · 计算机科学 2023-10-27 Biao Fu , Minpeng Liao , Kai Fan , Zhongqiang Huang , Boxing Chen , Yidong Chen , Xiaodong Shi

Modern autonomous vehicles rely heavily on mechanical LiDARs for perception. Current perception methods generally require 360{\deg} point clouds, collected sequentially as the LiDAR scans the azimuth and acquires consecutive wedge-shaped…

计算机视觉与模式识别 · 计算机科学 2022-09-13 Mazen Abdelfattah , Kaiwen Yuan , Z. Jane Wang , Rabab Ward