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Simulations of many rigid bodies colliding with each other sometimes yield particularly interesting results if the colliding objects differ significantly in size and are non-spherical. The most expensive part within such a simulation code…

计算几何 · 计算机科学 2022-10-21 Peter J. Noble , Tobias Weinzierl

This paper presents a method for local motion planning in unstructured environments with static and moving obstacles, such as humans. Given a reference path and speed, our optimization-based receding-horizon approach computes a local…

机器人学 · 计算机科学 2020-10-21 Bruno Brito , Boaz Floor , Laura Ferranti , Javier Alonso-Mora

Local feature extraction is a standard approach in computer vision for tackling important tasks such as image matching and retrieval. The core assumption of most methods is that images undergo affine transformations, disregarding more…

计算机视觉与模式识别 · 计算机科学 2023-04-04 Guilherme Potje , Felipe Cadar , Andre Araujo , Renato Martins , Erickson R. Nascimento

This paper presents a three-layered hybrid collision avoidance (COLAV) system for autonomous surface vehicles, compliant with rules 8 and 13-17 of the International Regulations for Preventing Collisions at Sea (COLREGs). The COLAV system…

系统与控制 · 电气工程与系统科学 2020-02-12 Bjørn-Olav H. Eriksen , Glenn Bitar , Morten Breivik , Anastasios M. Lekkas

Self-supervised monocular depth estimation enables robots to learn 3D perception from raw video streams. This scalable approach leverages projective geometry and ego-motion to learn via view synthesis, assuming the world is mostly static.…

计算机视觉与模式识别 · 计算机科学 2022-06-14 Vitor Guizilini , Kuan-Hui Lee , Rares Ambrus , Adrien Gaidon

It is now possible to estimate 3D human pose from monocular images with off-the-shelf 3D pose estimators. However, many practical applications require fine-grained absolute pose information for which multi-view cues and camera calibration…

计算机视觉与模式识别 · 计算机科学 2024-05-14 James Tang , Shashwat Suri , Daniel Ajisafe , Bastian Wandt , Helge Rhodin

In this work, we propose a method that combines unsupervised deep learning predictions for optical flow and monocular disparity with a model based optimization procedure for instantaneous camera pose. Given the flow and disparity…

计算机视觉与模式识别 · 计算机科学 2019-02-14 Alex Zihao Zhu , Wenxin Liu , Ziyun Wang , Vijay Kumar , Kostas Daniilidis

To reach human performance on complex tasks, a key ability for artificial systems is to understand physical interactions between objects, and predict future outcomes of a situation. This ability, often referred to as intuitive physics, has…

计算机视觉与模式识别 · 计算机科学 2020-05-04 Ronan Riochet , Josef Sivic , Ivan Laptev , Emmanuel Dupoux

Partial observations of continuous time-series dynamics at arbitrary time stamps exist in many disciplines. Fitting this type of data using statistical models with continuous dynamics is not only promising at an intuitive level but also has…

机器学习 · 计算机科学 2021-10-29 Ruizhi Deng , Marcus A. Brubaker , Greg Mori , Andreas M. Lehrmann

Motion prediction has been studied in different contexts with models trained on narrow distributions and applied to downstream tasks in human motion prediction and robotics. Simultaneously, recent efforts in scaling video prediction have…

计算机视觉与模式识别 · 计算机科学 2025-12-30 Johnathan Xie , Stefan Stojanov , Cristobal Eyzaguirre , Daniel L. K. Yamins , Jiajun Wu

Optical flow estimation aims to find the 2D motion field by identifying corresponding pixels between two images. Despite the tremendous progress of deep learning-based optical flow methods, it remains a challenge to accurately estimate…

计算机视觉与模式识别 · 计算机科学 2022-04-01 Xiuchao Sui , Shaohua Li , Xue Geng , Yan Wu , Xinxing Xu , Yong Liu , Rick Goh , Hongyuan Zhu

We present PersonaCraft, a framework for controllable and occlusion-robust full-body personalized image synthesis of multiple individuals in complex scenes. Current methods struggle with occlusion-heavy scenarios and complete body…

计算机视觉与模式识别 · 计算机科学 2025-03-17 Gwanghyun Kim , Suh Yoon Jeon , Seunggyu Lee , Se Young Chun

Monocular 3D human pose and shape estimation is an ill-posed problem since multiple 3D solutions can explain a 2D image of a subject. Recent approaches predict a probability distribution over plausible 3D pose and shape parameters…

计算机视觉与模式识别 · 计算机科学 2023-05-12 Akash Sengupta , Ignas Budvytis , Roberto Cipolla

Accurate human trajectory prediction is one of the most crucial tasks for autonomous driving, ensuring its safety. Yet, existing models often fail to fully leverage the visual cues that humans subconsciously communicate when navigating the…

计算机视觉与模式识别 · 计算机科学 2025-07-31 Yang Gao , Saeed Saadatnejad , Alexandre Alahi

We present a motion planning algorithm to compute collision-free and smooth trajectories for high-DOF robots interacting with humans in a shared workspace. Our approach uses offline learning of human actions along with temporal coherence to…

机器人学 · 计算机科学 2017-11-28 Jae Sung Park , Chonhyon Park , Dinesh Manocha

Self-supervised multi-frame methods have currently achieved promising results in depth estimation. However, these methods often suffer from mismatch problems due to the moving objects, which break the static assumption. Additionally,…

计算机视觉与模式识别 · 计算机科学 2024-03-29 Yiyang Sun , Zhiyuan Xu , Xiaonian Wang , Jing Yao

Self-supervised deep learning-based 3D scene understanding methods can overcome the difficulty of acquiring the densely labeled ground-truth and have made a lot of advances. However, occlusions and moving objects are still some of the major…

计算机视觉与模式识别 · 计算机科学 2021-10-25 Jiaojiao Fang , Guizhong Liu

3D human pose estimation from monocular images is a highly ill-posed problem due to depth ambiguities and occlusions. Nonetheless, most existing works ignore these ambiguities and only estimate a single solution. In contrast, we generate a…

计算机视觉与模式识别 · 计算机科学 2021-08-03 Tom Wehrbein , Marco Rudolph , Bodo Rosenhahn , Bastian Wandt

Scene flow estimation is a crucial component in the development of autonomous driving and 3D robotics, providing valuable information for environment perception and navigation. Despite the advantages of learning-based scene flow estimation…

计算机视觉与模式识别 · 计算机科学 2024-01-08 Rahul Ahuja , Chris Baker , Wilko Schwarting

The age estimation task aims to predict the age of an individual by analyzing facial features in an image. The development of age estimation can improve the efficiency and accuracy of various applications (e.g., age verification and secure…

计算机视觉与模式识别 · 计算机科学 2024-09-04 Yuntao Shou , Wei Ai , Tao Meng , Nan Yin , Keqin Li