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We propose to build realistic virtual worlds, called 360RVW, for large urban environments directly from 360{\deg} videos. We provide an interface for interactive exploration, where users can freely navigate via their own avatars. 360{\deg}…

Multimedia · Computer Science 2025-10-14 Mizuki Takenawa , Naoki Sugimoto , Leslie Wöhler , Satoshi Ikehata , Kiyoharu Aizawa

Virtual environments provide a rich and controlled setting for collecting detailed data on human behavior, offering unique opportunities for predicting human trajectories in dynamic scenes. However, most existing approaches have overlooked…

Artificial Intelligence · Computer Science 2024-11-14 Franz Franco Gallo , Hui-Yin Wu , Lucile Sassatelli

Trajectory analysis is essential in many applications. In this paper, we address the problem of representing motion trajectories in a highly informative way, and consequently utilize it for analyzing trajectories. Our approach first…

Computer Vision and Pattern Recognition · Computer Science 2017-04-27 Weiyao Lin , Yang Zhou , Hongteng Xu , Junchi Yan , Mingliang Xu , Jianxin Wu , Zicheng Liu

As mobile devices with positioning capabilities continue to proliferate, data management for so-called trajectory databases that capture the historical movements of populations of moving objects becomes important. This paper considers the…

Databases · Computer Science 2010-02-05 Hoyoung Jeung , Man Lung Yiu , Xiaofang Zhou , Christian S. Jensen , Heng Tao Shen

Perception and prediction are two separate modules in the existing autonomous driving systems. They interact with each other via hand-picked features such as agent bounding boxes and trajectories. Due to this separation, prediction, as a…

Computer Vision and Pattern Recognition · Computer Science 2023-06-21 Junru Gu , Chenxu Hu , Tianyuan Zhang , Xuanyao Chen , Yilun Wang , Yue Wang , Hang Zhao

Visual navigation models based on deep learning can learn effective policies when trained on large amounts of visual observations through reinforcement learning. Unfortunately, collecting the required experience in the real world requires…

Robotics · Computer Science 2020-10-27 Marco Rosano , Antonino Furnari , Luigi Gulino , Giovanni Maria Farinella

Online user studies of visualizations, visual encodings, and interaction techniques are ubiquitous in visualization research. Yet, designing, conducting, and analyzing studies effectively is still a major burden. Although various packages…

Recently, researchers in Machine Learning algorithms, Computer Vision scientists, engineers and others, showed a growing interest in 3D simulators as a mean to artificially create experimental settings that are very close to those in the…

Computer Vision and Pattern Recognition · Computer Science 2022-10-18 Enrico Meloni , Luca Pasqualini , Matteo Tiezzi , Marco Gori , Stefano Melacci

Current visualization research has identified the potential of more immersive settings for data exploration, leveraging VR and AR technologies. To explore how a traditional visualization system could be adapted into an immersive framework,…

Human-Computer Interaction · Computer Science 2024-05-24 Jorge Wagner , Claudio T. Silva , Wolfgang Stuerzlinger , Luciana Nedel

The intuitive nature of drag-based interaction has led to its growing adoption for controlling object trajectories in image-to-video synthesis. Still, existing methods that perform dragging in the 2D space usually face ambiguity when…

Computer Vision and Pattern Recognition · Computer Science 2025-03-31 Hanlin Wang , Hao Ouyang , Qiuyu Wang , Wen Wang , Ka Leong Cheng , Qifeng Chen , Yujun Shen , Limin Wang

Developing reduced-order models applicable to fluid-dynamics problems involving complex geometries and different flow conditions remains a critical challenge for turbulent flows. This study introduces VIVALDy, a novel machine-learning…

Vision-and-Language Navigation (VLN) has long been constrained by the limited diversity and scalability of simulator-curated datasets, which fail to capture the complexity of real-world environments. To overcome this limitation, we…

Computer Vision and Pattern Recognition · Computer Science 2026-03-11 Mingfei Han , Haihong Hao , Liang Ma , Kamila Zhumakhanova , Ekaterina Radionova , Jingyi Zhang , Xiaojun Chang , Xiaodan Liang , Ivan Laptev

Segmentation of objects in a video is challenging due to the nuances such as motion blurring, parallax, occlusions, changes in illumination, etc. Instead of addressing these nuances separately, we focus on building a generalizable solution…

Computer Vision and Pattern Recognition · Computer Science 2023-07-11 Silky Singh , Shripad Deshmukh , Mausoom Sarkar , Rishabh Jain , Mayur Hemani , Balaji Krishnamurthy

Analyzing high-dimensional data and finding hidden patterns is a difficult problem and has attracted numerous research efforts. Automated methods can be useful to some extent but bringing the data analyst into the loop via interactive…

Human-Computer Interaction · Computer Science 2017-12-04 Bing Wang , Klaus Mueller

Humans build 3D understandings of the world through active object exploration, using jointly their senses of vision and touch. However, in 3D shape reconstruction, most recent progress has relied on static datasets of limited sensory data…

Computer Vision and Pattern Recognition · Computer Science 2021-10-27 Edward J. Smith , David Meger , Luis Pineda , Roberto Calandra , Jitendra Malik , Adriana Romero , Michal Drozdzal

3D shape is a crucial but heavily underutilized cue in today's computer vision systems, mostly due to the lack of a good generic shape representation. With the recent availability of inexpensive 2.5D depth sensors (e.g. Microsoft Kinect),…

Computer Vision and Pattern Recognition · Computer Science 2015-04-16 Zhirong Wu , Shuran Song , Aditya Khosla , Fisher Yu , Linguang Zhang , Xiaoou Tang , Jianxiong Xiao

We introduce VividDream, a method for generating explorable 4D scenes with ambient dynamics from a single input image or text prompt. VividDream first expands an input image into a static 3D point cloud through iterative inpainting and…

Computer Vision and Pattern Recognition · Computer Science 2024-05-31 Yao-Chih Lee , Yi-Ting Chen , Andrew Wang , Ting-Hsuan Liao , Brandon Y. Feng , Jia-Bin Huang

Endovascular surgical tool reconstruction represents an important factor in advancing endovascular tool navigation, which is an important step in endovascular surgery. However, the lack of publicly available datasets significantly restricts…

Image and Video Processing · Electrical Eng. & Systems 2024-10-30 Tudor Jianu , Baoru Huang , Hoan Nguyen , Binod Bhattarai , Tuong Do , Erman Tjiputra , Quang Tran , Pierre Berthet-Rayne , Ngan Le , Sebastiano Fichera , Anh Nguyen

In this paper, we introduce a global video representation to video-based person re-identification (re-ID) that aggregates local 3D features across the entire video extent. Most of the existing methods rely on 2D convolutional networks…

Computer Vision and Pattern Recognition · Computer Science 2019-02-07 Lin Wu , Yang Wang , Ling Shao , Meng Wang

This paper presents a new technique for the virtual reality (VR) visu-alization of complex volume images obtained from computer tomography (CT) and Magnetic Resonance Imaging (MRI) by combining three-dimensional (3D) mesh processing and…

Multimedia · Computer Science 2023-05-02 Iva Vasic , Roberto Pierdicca , Emanuele Frontoni , Bata Vasic
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