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A simple visual representation of Minkowski spacetime appropriate for a student with a background in geometry and algebra is presented. Minkowski spacetime can be modeled with a Euclidean 4-space to yield accurate visualizations as…

Physics Education · Physics 2015-06-03 Don V. Black , M. Gopi , F. Wessel , R. Pajarola , F. Kuester

The classifying space of inertial reference frames in special relativity is naturally hyperbolic. There is a remarkable interplay between central elements of hyperbolic geometry and those of special relativity -- which, to a certain extent,…

Mathematical Physics · Physics 2020-12-02 Rafael Ferreira , João dos Reis Junior , Carlos H. Grossi

We propose an end-to-end learning framework for segmenting generic objects in videos. Our method learns to combine appearance and motion information to produce pixel level segmentation masks for all prominent objects in videos. We formulate…

Computer Vision and Pattern Recognition · Computer Science 2017-04-13 Suyog Dutt Jain , Bo Xiong , Kristen Grauman

We present a new object representation, called Dense RepPoints, that utilizes a large set of points to describe an object at multiple levels, including both box level and pixel level. Techniques are proposed to efficiently process these…

Computer Vision and Pattern Recognition · Computer Science 2020-05-19 Ze Yang , Yinghao Xu , Han Xue , Zheng Zhang , Raquel Urtasun , Liwei Wang , Stephen Lin , Han Hu

We segment moving objects in videos by ranking spatio-temporal segment proposals according to "moving objectness": how likely they are to contain a moving object. In each video frame, we compute segment proposals using multiple…

Computer Vision and Pattern Recognition · Computer Science 2015-05-11 Katerina Fragkiadaki , Pablo Arbelaez , Panna Felsen , Jitendra Malik

We introduce a new method that generates photo-realistic humans under novel views and poses given a monocular video as input. Despite the significant progress recently on this topic, with several methods exploring shared canonical neural…

Computer Vision and Pattern Recognition · Computer Science 2023-04-21 Tiantian Wang , Nikolaos Sarafianos , Ming-Hsuan Yang , Tony Tung

Object concepts play a foundational role in human visual cognition, enabling perception, memory, and interaction in the physical world. Inspired by findings in developmental neuroscience - where infants are shown to acquire object…

Computer Vision and Pattern Recognition · Computer Science 2025-05-29 Haoqian Liang , Xiaohui Wang , Zhichao Li , Ya Yang , Naiyan Wang

Object recognition has seen significant progress in the image domain, with focus primarily on 2D perception. We propose to leverage existing large-scale datasets of 3D models to understand the underlying 3D structure of objects seen in an…

Computer Vision and Pattern Recognition · Computer Science 2020-07-28 Weicheng Kuo , Anelia Angelova , Tsung-Yi Lin , Angela Dai

We present a method to map 2D image observations of a scene to a persistent 3D scene representation, enabling novel view synthesis and disentangled representation of the movable and immovable components of the scene. Motivated by the…

Computer Vision and Pattern Recognition · Computer Science 2023-04-11 Prafull Sharma , Ayush Tewari , Yilun Du , Sergey Zakharov , Rares Ambrus , Adrien Gaidon , William T. Freeman , Fredo Durand , Joshua B. Tenenbaum , Vincent Sitzmann

We propose a new visual hierarchical representation paradigm for multi-object tracking. It is more effective to discriminate between objects by attending to objects' compositional visual regions and contrasting with the background…

Computer Vision and Pattern Recognition · Computer Science 2024-02-27 Jinkun Cao , Jiangmiao Pang , Kris Kitani

We present a new method for visualizing implicit real algebraic curves inside a bounding box in the $2$-D or $3$-D ambient space based on numerical continuation and critical point methods. The underlying techniques work also for tracing…

Symbolic Computation · Computer Science 2019-12-17 Changbo Chen , Wenyuan Wu , Yong Feng

This paper presents an approach to forecast future presence and location of human hands and objects. Given an image frame, the goal is to predict what objects will appear in the future frame (e.g., 5 seconds later) and where they will be…

Computer Vision and Pattern Recognition · Computer Science 2018-08-24 Chenyou Fan , Jangwon Lee , Michael S. Ryoo

Panoptic tracking enables pixel-level scene interpretation of videos by integrating instance tracking in panoptic segmentation. This provides robots with a spatio-temporal understanding of the environment, an essential attribute for their…

Computer Vision and Pattern Recognition · Computer Science 2025-03-13 Juana Valeria Hurtado , Sajad Marvi , Rohit Mohan , Abhinav Valada

This paper proposes a method for automatically monitoring and analyzing the evolution of complex geographic objects. The objects are modeled as a spatiotemporal graph, which separates filiation relations, spatial relations, and…

Computer Vision and Pattern Recognition · Computer Science 2023-05-25 Zouhayra Ayadi , Wadii Boulila , Imed Riadh Farah

Visual relationship detection, as a challenging task used to find and distinguish the interactions between object pairs in one image, has received much attention recently. In this work, we propose a novel visual relationship detection…

Computer Vision and Pattern Recognition · Computer Science 2019-11-05 Hao Zhou , Chongyang Zhang , Chuanping Hu

We present an approach for pixel-level future prediction given an input image of a scene. We observe that a scene is comprised of distinct entities that undergo motion and present an approach that operationalizes this insight. We implicitly…

Computer Vision and Pattern Recognition · Computer Science 2019-08-23 Yufei Ye , Maneesh Singh , Abhinav Gupta , Shubham Tulsiani

Due to its rising importance in science and technology in recent years, particle tracking in videos presents itself as a tool for successfully acquiring new knowledge in the field of life sciences and physics. Accordingly, different…

Data Analysis, Statistics and Probability · Physics 2021-02-01 Kristina Dingel , Rico Huhnstock , André Knie , Arno Ehresmann , Bernhard Sick

We propose a model that is able to perform unsupervised physical parameter estimation of systems from video, where the differential equations governing the scene dynamics are known, but labeled states or objects are not available. Existing…

Computer Vision and Pattern Recognition · Computer Science 2020-04-22 Miguel Jaques , Michael Burke , Timothy Hospedales

Fast moving celestial objects are characterized by velocities across the celestial sphere that significantly differ from the motions of background stars. In observational images, these objects exhibit distinct shapes, contrasting with the…

Instrumentation and Methods for Astrophysics · Physics 2025-04-11 Peng Jia , Ge Li , Bafeng Cheng , Yushan Li , Rongyu Sun

If the universe has a nontrivial shape (topology) the sky may show multiple correlated images of cosmic objects. These correlations can be couched in terms of distance correlations. We propose a statistical quantity which can be used to…

General Relativity and Quantum Cosmology · Physics 2009-11-07 G. I. Gomero , M. J. Reboucas , A. F. F. Teixeira
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