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In this paper, we propose a new method to detect 4D spatiotemporal interest points though an implicit surface, we refer to as the 4D-ISIP. We use a 3D volume which has a truncated signed distance function(TSDF) for every voxel to represent…

Computer Vision and Pattern Recognition · Computer Science 2017-06-30 Shirui Li , Alper Yilmaz , Changlin Xiao , Hua Li

Independently exploring unknown spaces or finding objects in an indoor environment is a daily but challenging task for visually impaired people. However, common 2D assistive systems lack depth relationships between various objects,…

Computer Vision and Pattern Recognition · Computer Science 2021-07-08 Huayao Liu , Ruiping Liu , Kailun Yang , Jiaming Zhang , Kunyu Peng , Rainer Stiefelhagen

Given a visual scene, humans have strong intuitions about how a scene can evolve over time under given actions. The intuition, often termed visual intuitive physics, is a critical ability that allows us to make effective plans to manipulate…

Computer Vision and Pattern Recognition · Computer Science 2023-04-25 Haotian Xue , Antonio Torralba , Joshua B. Tenenbaum , Daniel LK Yamins , Yunzhu Li , Hsiao-Yu Tung

Understanding how people interact with their surroundings and each other is essential for enabling robots to act in socially compliant and context-aware ways. While 3D Scene Graphs have emerged as a powerful semantic representation for…

Computer Vision and Pattern Recognition · Computer Science 2025-09-30 Ermanno Bartoli , Dennis Rotondi , Buwei He , Patric Jensfelt , Kai O. Arras , Iolanda Leite

Immersive applications call for synthesizing spatiotemporal 4D content from casual videos without costly 3D supervision. Existing video-to-4D methods typically rely on manually annotated camera poses, which are labor-intensive and brittle…

Computer Vision and Pattern Recognition · Computer Science 2026-03-13 Dongyue Lu , Ao Liang , Tianxin Huang , Xiao Fu , Yuyang Zhao , Baorui Ma , Liang Pan , Wei Yin , Lingdong Kong , Wei Tsang Ooi , Ziwei Liu

Considering the widespread integration of aerial robots in inspection, search and rescue, and monitoring tasks, there is a growing demand to design intuitive human-drone interfaces. These aim to streamline and enhance the user interaction…

Tracking human object interaction from videos is important to understand human behavior from the rapidly growing stream of video data. Previous video-based methods require predefined object templates while single-image-based methods are…

Computer Vision and Pattern Recognition · Computer Science 2024-08-27 Xianghui Xie , Jan Eric Lenssen , Gerard Pons-Moll

Humans are remarkable in their ability to navigate without metric information. We can read abstract 2D maps, such as floor-plans or hand-drawn sketches, and use them to navigate in unseen rich 3D environments, without requiring prior…

Robotics · Computer Science 2024-05-14 Joel Loo , David Hsu

To date, little attention has been given to multi-view 3D human mesh estimation, despite real-life applicability (e.g., motion capture, sport analysis) and robustness to single-view ambiguities. Existing solutions typically suffer from poor…

Computer Vision and Pattern Recognition · Computer Science 2022-12-13 Xuan Gong , Liangchen Song , Meng Zheng , Benjamin Planche , Terrence Chen , Junsong Yuan , David Doermann , Ziyan Wu

Our experience of the world is multisensory, spanning a synthesis of language, sight, sound, touch, taste, and smell. Yet, artificial intelligence has primarily advanced in digital modalities like text, vision, and audio. This paper…

Machine Learning · Computer Science 2026-01-14 Paul Pu Liang

Event cameras, often referred to as dynamic vision sensors, are groundbreaking sensors capable of capturing changes in light intensity asynchronously, offering exceptional temporal resolution and energy efficiency. These attributes make…

Computer Vision and Pattern Recognition · Computer Science 2025-02-27 Mira Adra , Simone Melcarne , Nelida Mirabet-Herranz , Jean-Luc Dugelay

Most real-world 3D sensors such as LiDARs perform fixed scans of the entire environment, while being decoupled from the recognition system that processes the sensor data. In this work, we propose a method for 3D object recognition using…

Computer Vision and Pattern Recognition · Computer Science 2021-07-09 Siddharth Ancha , Yaadhav Raaj , Peiyun Hu , Srinivasa G. Narasimhan , David Held

Predicting the future interaction of objects when they come into contact with their environment is key for autonomous agents to take intelligent and anticipatory actions. This paper presents a perception framework that fuses visual and…

Machine Learning · Computer Science 2021-01-21 Sahand Rezaei-Shoshtari , Francois Robert Hogan , Michael Jenkin , David Meger , Gregory Dudek

This work aims to discuss the current landscape of kinematic analysis tools, ranging from the state-of-the-art in sports biomechanics such as inertial measurement units (IMUs) and retroreflective marker-based optical motion capture (MoCap)…

Computer Vision and Pattern Recognition · Computer Science 2025-03-20 Kai Armstrong , Alexander Rodrigues , Alexander P. Willmott , Lei Zhang , Xujiong Ye

With the prosperity of the video surveillance, multiple cameras have been applied to accurately locate pedestrians in a specific area. However, previous methods rely on the human-labeled annotations in every video frame and camera view,…

Computer Vision and Pattern Recognition · Computer Science 2023-11-21 Mengyin Liu , Chao Zhu , Shiqi Ren , Xu-Cheng Yin

A significant portion of driving hazards is caused by human error and disregard for local driving regulations; Consequently, an intelligent assistance system can be beneficial. This paper proposes a novel vision-based modular package to…

Computer Vision and Pattern Recognition · Computer Science 2023-03-30 Amirhossein Kazerouni , Amirhossein Heydarian , Milad Soltany , Aida Mohammadshahi , Abbas Omidi , Saeed Ebadollahi

Most recent view-invariant action recognition and performance assessment approaches rely on a large amount of annotated 3D skeleton data to extract view-invariant features. However, acquiring 3D skeleton data can be cumbersome, if not…

Computer Vision and Pattern Recognition · Computer Science 2024-07-09 Faegheh Sardari , Björn Ommer , Majid Mirmehdi

Falls represent a significant cause of injury among the elderly population. Extensive research has been devoted to the utilization of wearable IMU sensors in conjunction with machine learning techniques for fall detection. To address the…

Quantitative Methods · Quantitative Biology 2023-10-18 Jie Tang , Bin He , Junkai Xu , Tian Tan , Zhipeng Wang , Yanmin Zhou , Shuo Jiang

We propose Super Odometry, a high-precision multi-modal sensor fusion framework, providing a simple but effective way to fuse multiple sensors such as LiDAR, camera, and IMU sensors and achieve robust state estimation in…

Robotics · Computer Science 2021-08-23 Shibo Zhao , Hengrui Zhang , Peng Wang , Lucas Nogueira , Sebastian Scherer

Autonomous driving requires robust perception across diverse environmental conditions, yet 3D semantic occupancy prediction remains challenging under adverse weather and lighting. In this work, we present the first study combining 4D radar…

Computer Vision and Pattern Recognition · Computer Science 2026-03-10 David Ninfa , Andras Palffy , Holger Caesar