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Understanding the 3D structure of a scene is of vital importance, when it comes to developing fully autonomous robots. To this end, we present a novel deep learning based framework that estimates depth, surface normals and surface curvature…

Computer Vision and Pattern Recognition · Computer Science 2017-06-26 Thanuja Dharmasiri , Andrew Spek , Tom Drummond

Point cloud normal estimation is a fundamental task in 3D geometry processing. While recent learning-based methods achieve notable advancements in normal prediction, they often overlook the critical aspect of equivariance. This results in…

Computer Vision and Pattern Recognition · Computer Science 2024-06-04 Hanxiao Wang , Mingyang Zhao , Weize Quan , Zhen Chen , Dong-ming Yan , Peter Wonka

We propose a surface fitting method for unstructured 3D point clouds. This method, called DeepFit, incorporates a neural network to learn point-wise weights for weighted least squares polynomial surface fitting. The learned weights act as a…

Computer Vision and Pattern Recognition · Computer Science 2020-03-25 Yizhak Ben-Shabat , Stephen Gould

Point cloud surface reconstruction has improved in accuracy with advances in deep learning, enabling applications such as infrastructure inspection. Recent approaches that reconstruct from small local regions rather than entire point clouds…

Computer Vision and Pattern Recognition · Computer Science 2025-11-12 Eito Ogawa , Taiga Hayami , Hiroshi Watanabe

We study the problem of single-image depth estimation for images in the wild. We collect human annotated surface normals and use them to train a neural network that directly predicts pixel-wise depth. We propose two novel loss functions for…

Computer Vision and Pattern Recognition · Computer Science 2017-04-11 Weifeng Chen , Donglai Xiang , Jia Deng

Developing deep learning techniques for geometric data is an active and fruitful research area. This paper tackles the problem of sphere-type surface learning by developing a novel surface-to-image representation. Using this representation…

Computer Vision and Pattern Recognition · Computer Science 2019-08-20 Niv Haim , Nimrod Segol , Heli Ben-Hamu , Haggai Maron , Yaron Lipman

Self-supervised depth estimation has drawn much attention in recent years as it does not require labeled data but image sequences. Moreover, it can be conveniently used in various applications, such as autonomous driving, robotics,…

Computer Vision and Pattern Recognition · Computer Science 2021-06-08 Shaocheng Jia , Xin Pei , Wei Yao , S. C. Wong

In this work we present a method to train a plane-aware convolutional neural network for dense depth and surface normal estimation as well as plane boundaries from a single indoor $360^\circ$ image. Using our proposed loss function, our…

Computer Vision and Pattern Recognition · Computer Science 2020-02-25 Marc Eder , Pierre Moulon , Li Guan

Depth map estimation is a crucial task in computer vision, and new approaches have recently emerged taking advantage of light fields, as this new imaging modality captures much more information about the angular direction of light rays…

Computer Vision and Pattern Recognition · Computer Science 2020-08-12 Yang Chen , Martin Alain , Aljosa Smolic

Light Detection and Ranging (LiDAR) technology has proven to be an important part of many robotics systems. Surface normals estimated from LiDAR data are commonly used for a variety of tasks in such systems. As most of the today's…

Robotics · Computer Science 2024-04-23 Igor Bogoslavskyi , Konstantinos Zampogiannis , Raymond Phan

Point cloud reconstruction from raw point cloud has been an important topic in computer graphics for decades, especially due to its high demand in modeling and rendering applications. An important way to solve this problem is establishing a…

Computer Vision and Pattern Recognition · Computer Science 2025-03-17 Hui Tian , Kai Xu

Noise is one of the primary sources of interference in seismic exploration. Many authors have proposed various methods to remove noise from seismic data; however, in the face of strong noise conditions, satisfactory results are often not…

Geophysics · Physics 2024-04-04 Junheng Peng , Yong Li , Yingtian Liu , Zhangquan Liao

Estimating consistently oriented normals for point clouds enables a number of important applications in computer graphics. While local normal estimation is possible with simple techniques like PCA, orienting them to be globally consistent…

Graphics · Computer Science 2024-09-17 Siyou Lin , Zuoqiang Shi , Yebin Liu

We introduce a framework for the recovery of points on a smooth surface in high-dimensional space, with application to dynamic imaging. We assume the surface to be the zero-level set of a bandlimited function. We show that the exponential…

Computer Vision and Pattern Recognition · Computer Science 2018-01-04 Sunrita Poddar , Mathews Jacob

The reconstruction of a discrete surface from a point cloud is a fundamental geometry processing problem that has been studied for decades, with many methods developed. We propose the use of a deep neural network as a geometric prior for…

Computer Vision and Pattern Recognition · Computer Science 2019-04-08 Francis Williams , Teseo Schneider , Claudio Silva , Denis Zorin , Joan Bruna , Daniele Panozzo

Geometric estimation is required for scene understanding and analysis in panoramic 360{\deg} images. Current methods usually predict a single feature, such as depth or surface normal. These methods can lack robustness, especially when…

Computer Vision and Pattern Recognition · Computer Science 2025-05-29 Kun Huang , Fang-Lue Zhang , Fangfang Zhang , Yu-Kun Lai , Paul L. Rosin , Neil A. Dodgson

In a previous paper [11] we introduced a weighted binary average of two 2D point-normal pairs, termed circle average, and investigated subdivision schemes based on it. These schemes refine point-normal pairs in 2D, and converge to limit…

Graphics · Computer Science 2019-12-06 Evgeny Lipovetsky

We introduce a novel self-attention-based normal estimation network that is able to focus softly on relevant points and adjust the softness by learning a temperature parameter, making it able to work naturally and effectively within a large…

Computer Vision and Pattern Recognition · Computer Science 2021-01-18 Zirui Wang , Victor Adrian Prisacariu

This paper proposes a method for computing the visible occluding contours of subdivision surfaces. The paper first introduces new theory for contour visibility of smooth surfaces. Necessary and sufficient conditions are introduced for when…

Graphics · Computer Science 2022-06-09 Chenxi Liu , Pierre Bénard , Aaron Hertzmann , Shayan Hoshyari

This work presents an accurate and robust method for estimating normals from point clouds. In contrast to predecessor approaches that minimize the deviations between the annotated and the predicted normals directly, leading to direction…

Computer Vision and Pattern Recognition · Computer Science 2023-12-15 Yingrui Wu , Mingyang Zhao , Keqiang Li , Weize Quan , Tianqi Yu , Jianfeng Yang , Xiaohong Jia , Dong-Ming Yan
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