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Due to difficulties in acquiring ground truth depth of equirectangular (360) images, the quality and quantity of equirectangular depth data today is insufficient to represent the various scenes in the world. Therefore, 360 depth estimation…

计算机视觉与模式识别 · 计算机科学 2023-04-17 Ilwi Yun , Hyuk-Jae Lee , Chae Eun Rhee

Predicting accurate depth with monocular images is important for low-cost robotic applications and autonomous driving. This study proposes a comprehensive self-supervised framework for accurate scale-aware depth prediction on autonomous…

计算机视觉与模式识别 · 计算机科学 2023-04-24 Yuxuan Liu , Zhenhua Xu , Huaiyang Huang , Lujia Wang , Ming Liu

Neural implicit representations, which encode a surface as the level set of a neural network applied to spatial coordinates, have proven to be remarkably effective for optimizing, compressing, and generating 3D geometry. Although these…

计算机视觉与模式识别 · 计算机科学 2022-06-27 Nicholas Sharp , Alec Jacobson

Accurate surround-view depth estimation provides a competitive alternative to laser-based sensors and is essential for 3D scene understanding in autonomous driving. While empirical studies have proposed various approaches that primarily…

计算机视觉与模式识别 · 计算机科学 2026-01-21 Weimin Liu , Wenjun Wang , Joshua H. Meng

Unsupervised learning with generative models has the potential of discovering rich representations of 3D scenes. While geometric deep learning has explored 3D-structure-aware representations of scene geometry, these models typically require…

计算机视觉与模式识别 · 计算机科学 2020-01-30 Vincent Sitzmann , Michael Zollhöfer , Gordon Wetzstein

This paper addresses the problem of end-to-end self-supervised forecasting of depth and ego motion. Given a sequence of raw images, the aim is to forecast both the geometry and ego-motion using a self supervised photometric loss. The…

计算机视觉与模式识别 · 计算机科学 2022-06-16 Houssem Boulahbal , Adrian Voicila , Andrew Comport

Neural scene representations, such as Neural Radiance Fields (NeRF), are based on training a multilayer perceptron (MLP) using a set of color images with known poses. An increasing number of devices now produce RGB-D(color + depth)…

计算机视觉与模式识别 · 计算机科学 2022-11-08 Arnab Dey , Yassine Ahmine , Andrew I. Comport

We present a method for the accurate 3D reconstruction of partly-symmetric objects. We build on the strengths of recent advances in neural reconstruction and rendering such as Neural Radiance Fields (NeRF). A major shortcoming of such…

计算机视觉与模式识别 · 计算机科学 2022-06-14 Eldar Insafutdinov , Dylan Campbell , João F. Henriques , Andrea Vedaldi

Self-supervised representation learning is able to learn semantically meaningful features; however, much of its recent success relies on multiple crops of an image with very few objects. Instead of learning view-invariant representation…

计算机视觉与模式识别 · 计算机科学 2021-10-13 Yuwen Xiong , Mengye Ren , Wenyuan Zeng , Raquel Urtasun

For image super-resolution (SR), bridging the gap between the performance on synthetic datasets and real-world degradation scenarios remains a challenge. This work introduces a novel "Low-Res Leads the Way" (LWay) training framework,…

图像与视频处理 · 电气工程与系统科学 2024-03-06 Haoyu Chen , Wenbo Li , Jinjin Gu , Jingjing Ren , Haoze Sun , Xueyi Zou , Zhensong Zhang , Youliang Yan , Lei Zhu

Depth completion, the technique of estimating a dense depth image from sparse depth measurements, has a variety of applications in robotics and autonomous driving. However, depth completion faces 3 main challenges: the irregularly spaced…

计算机视觉与模式识别 · 计算机科学 2018-07-04 Fangchang Ma , Guilherme Venturelli Cavalheiro , Sertac Karaman

Neural fields excel in computer vision and robotics due to their ability to understand the 3D visual world such as inferring semantics, geometry, and dynamics. Given the capabilities of neural fields in densely representing a 3D scene from…

计算机视觉与模式识别 · 计算机科学 2024-07-19 Muhammad Zubair Irshad , Sergey Zakharov , Vitor Guizilini , Adrien Gaidon , Zsolt Kira , Rares Ambrus

Consumer-level depth cameras and depth sensors embedded in mobile devices enable numerous applications, such as AR games and face identification. However, the quality of the captured depth is sometimes insufficient for 3D reconstruction,…

Deep neural networks need a big amount of training data, while in the real world there is a scarcity of data available for training purposes. To resolve this issue unsupervised methods are used for training with limited data. In this…

计算机视觉与模式识别 · 计算机科学 2022-02-10 Sayed Hashim , Muhammad Ali

Three-dimensional (3D) freehand ultrasound (US) is a widely used imaging modality that allows non-invasive imaging of medical anatomy without radiation exposure. Surface reconstruction of US volume is vital to acquire the accurate…

Most deep learning-based super-resolution (SR) methods are not image-specific: 1) They are trained on samples synthesized by predefined degradations (e.g. bicubic downsampling), regardless of the domain gap between training and testing…

计算机视觉与模式识别 · 计算机科学 2022-03-16 Shang Li , Guixuan Zhang , Zhengxiong Luo , Jie Liu , Zhi Zeng , Shuwu Zhang

Although depth extraction with passive sensors has seen remarkable improvement with deep learning, these approaches may fail to obtain correct depth if they are exposed to environments not observed during training. Online adaptation, where…

计算机视觉与模式识别 · 计算机科学 2022-06-22 Muhammad Umar Karim Khan

Self-supervised learning has proved to be a powerful approach to learn image representations without the need of large labeled datasets. For underwater robotics, it is of great interest to design computer vision algorithms to improve…

计算机视觉与模式识别 · 计算机科学 2022-04-21 Alan Preciado-Grijalva , Bilal Wehbe , Miguel Bande Firvida , Matias Valdenegro-Toro

Field-of-view and resolution trade-offs in X-Ray micro-computed tomography (micro-CT) imaging limit the characterization, analysis and model development of multi-scale porous systems. To this end, we developed an applied methodology…

地球物理 · 物理学 2022-03-17 Samuel J. Jackson , Yufu Niu , Sojwal Manoorkar , Peyman Mostaghimi , Ryan T. Armstrong

Transparent objects are ubiquitous in industry, pharmaceuticals, and households. Grasping and manipulating these objects is a significant challenge for robots. Existing methods have difficulty reconstructing complete depth maps for…

计算机视觉与模式识别 · 计算机科学 2024-05-13 Bardienus P. Duisterhof , Yuemin Mao , Si Heng Teng , Jeffrey Ichnowski