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Estimating a scene's depth to achieve collision avoidance against moving pedestrians is a crucial and fundamental problem in the robotic field. This paper proposes a novel, low complexity network architecture for fast and accurate human…

Computer Vision and Pattern Recognition · Computer Science 2021-08-25 Shan An , Fangru Zhou , Mei Yang , Haogang Zhu , Changhong Fu , Konstantinos A. Tsintotas

This paper provides a comprehensive survey on pioneer and state-of-the-art 3D scene geometry estimation methodologies based on single, two, or multiple images captured under the omnidirectional optics. We first revisit the basic concepts of…

Computer Vision and Pattern Recognition · Computer Science 2024-01-18 Thiago Lopes Trugillo da Silveira , Paulo Gamarra Lessa Pinto , Jeffri Erwin Murrugarra Llerena , Claudio Rosito Jung

This paper presents a complete Pascal interpolation scheme for use in the plane geometry mapping applied in association with numerical methods. The geometry of a domain element is approximated by a complete Pascal polynomial. The…

Numerical Analysis · Computer Science 2019-03-11 Sulaiman Y. Abo Diab

An object's geocentric pose, defined as the height above ground and orientation with respect to gravity, is a powerful representation of real-world structure for object detection, segmentation, and localization tasks using RGBD images. For…

Computer Vision and Pattern Recognition · Computer Science 2020-07-03 Gordon Christie , Rodrigo Rene Rai Munoz Abujder , Kevin Foster , Shea Hagstrom , Gregory D. Hager , Myron Z. Brown

We describe a special case of structure from motion where the camera rotates on a sphere. The camera's optical axis lies perpendicular to the sphere's surface. In this case, the camera's pose is minimally represented by three rotation…

Computer Vision and Pattern Recognition · Computer Science 2016-09-06 Jonathan Ventura

Human has an incredible ability to effortlessly perceive the viewpoint difference between two images containing the same object, even when the viewpoint change is astonishingly vast with no co-visible regions in the images. This remarkable…

Computer Vision and Pattern Recognition · Computer Science 2024-02-06 Yujing Sun , Caiyi Sun , Yuan Liu , Yuexin Ma , Siu Ming Yiu

It is known that epipolar geometry can be computed from three epipolar line correspondences but this computation is rarely used in practice since there are no simple methods to find corresponding lines. Instead, methods for finding…

Computer Vision and Pattern Recognition · Computer Science 2017-01-10 Gil Ben-Artzi , Tavi Halperin , Michael Werman , Shmuel Peleg

The vast majority of modern consumer-grade cameras employ a rolling shutter mechanism. In dynamic geometric computer vision applications such as visual SLAM, the so-called rolling shutter effect therefore needs to be properly taken into…

Computer Vision and Pattern Recognition · Computer Science 2016-05-03 Yuchao Dai , Hongdong Li , Laurent Kneip

This work presents a systematic investigation into how alternative LiDAR-to-image projections affect metric place recognition when coupled with a state-of-the-art vision foundation model. We introduce a modular retrieval pipeline that…

Computer Vision and Pattern Recognition · Computer Science 2025-12-03 Pierpaolo Serio , Giulio Pisaneschi , Andrea Dan Ryals , Vincenzo Infantino , Lorenzo Gentilini , Valentina Donzella , Lorenzo Pollini

The initial techniques developed in Euclid's Elements, well before the use of the parallel postulate, are reexamined in order to clarify even the most obscure details, particularly those related to equality, superposition and angle…

Metric Geometry · Mathematics 2025-02-04 Peter M Johnson

We present a novel method for multi-view depth estimation from a single video, which is a critical task in various applications, such as perception, reconstruction and robot navigation. Although previous learning-based methods have…

Computer Vision and Pattern Recognition · Computer Science 2021-07-13 Xiaoxiao Long , Lingjie Liu , Wei Li , Christian Theobalt , Wenping Wang

This paper introduces a method of calculating and rendering shapes in a non-Euclidean 2D space. In order to achieve this, we developed a physics and graphics engine that uses hyperbolic trigonometry to calculate and subsequently render the…

Graphics · Computer Science 2019-08-13 Daniil Osudin , Christopher Child , Yang-Hui He

Depth estimation, as a necessary clue to convert 2D images into the 3D space, has been applied in many machine vision areas. However, to achieve an entire surrounding 360-degree geometric sensing, traditional stereo matching algorithms for…

Computer Vision and Pattern Recognition · Computer Science 2021-09-22 Keyang Zhou , Kailun Yang , Kaiwei Wang

We approach the well-studied problem of supervised group invariant and equivariant machine learning from the point of view of geometric topology. We propose a novel approach using a pre-processing step, which involves projecting the input…

Machine Learning · Computer Science 2022-02-07 Benjamin Aslan , Daniel Platt , David Sheard

Depth estimation from a stereo image pair has become one of the most explored applications in computer vision, with most of the previous methods relying on fully supervised learning settings. However, due to the difficulty in acquiring…

Computer Vision and Pattern Recognition · Computer Science 2021-04-26 Baoru Huang , Jian-Qing Zheng , Stamatia Giannarou , Daniel S. Elson

We present an algorithm for estimating consistent dense depth maps and camera poses from a monocular video. We integrate a learning-based depth prior, in the form of a convolutional neural network trained for single-image depth estimation,…

Computer Vision and Pattern Recognition · Computer Science 2021-06-23 Johannes Kopf , Xuejian Rong , Jia-Bin Huang

We study the problem of bipedal robot navigation in complex environments with uncertain and rough terrain. In particular, we consider a scenario in which the robot is expected to reach a desired goal location by traversing an environment…

Robotics · Computer Science 2024-04-16 Kasidit Muenprasitivej , Jesse Jiang , Abdulaziz Shamsah , Samuel Coogan , Ye Zhao

This paper considers the challenging task of long-term video interpolation. Unlike most existing methods that only generate few intermediate frames between existing adjacent ones, we attempt to speculate or imagine the procedure of an…

Computer Vision and Pattern Recognition · Computer Science 2017-06-14 Xiongtao Chen , Wenmin Wang , Jinzhuo Wang , Weimian Li , Baoyang Chen

A basic problem in computer vision is to understand the structure of a real-world scene given several images of it. Here we study several theoretical aspects of the intra multi-view geometry of calibrated cameras when all that they can…

Computer Vision and Pattern Recognition · Computer Science 2019-12-02 Danail Brezov , Michael Werman

We introduce MV-DeepSimNets, a comprehensive suite of deep neural networks designed for multi-view similarity learning, leveraging epipolar geometry for training. Our approach incorporates an online geometry prior to characterize pixel…

Computer Vision and Pattern Recognition · Computer Science 2025-05-19 Mohamed Ali Chebbi , Ewelina Rupnik , Paul Lopes , Marc Pierrot-Deseilligny