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Deep Learning in Image Registration (DLIR) methods have been tremendously successful in image registration due to their speed and ability to incorporate weak label supervision at training time. However, existing DLIR methods forego many of…

Computer Vision and Pattern Recognition · Computer Science 2025-05-06 Rohit Jena , Pratik Chaudhari , James C. Gee

Neural implicit representations have become a popular choice for modeling surfaces due to their adaptability in resolution and support for complex topology. While previous works have achieved impressive reconstruction quality by training on…

Computer Vision and Pattern Recognition · Computer Science 2024-08-12 Lu Sang , Abhishek Saroha , Maolin Gao , Daniel Cremers

Spatially and temporally highly resolved depth information enables numerous applications including human-machine interaction in gaming or safety functions in the automotive industry. In this paper, we address this issue using Time-of-flight…

Numerical Analysis · Mathematics 2018-12-27 Stephan Antholzer , Christoph Wolf , Michael Sandbichler , Markus Dielacher , Markus Haltmeier

Recently, methods for neural surface representation and rendering, for example NeuS, have shown that learning neural implicit surfaces through volume rendering is becoming increasingly popular and making good progress. However, these…

Computer Vision and Pattern Recognition · Computer Science 2023-03-31 Hanqi Jiang , Cheng Zeng , Runnan Chen , Shuai Liang , Yinhe Han , Yichao Gao , Conglin Wang

As a real scenes sensing approach, depth information obtains the widespread applications. However, resulting from the restriction of depth sensing technology, the depth map captured in practice usually suffers terrible noise and missing…

Computer Vision and Pattern Recognition · Computer Science 2020-01-09 Wenxiang Zuo , Qiang Li , Xianming Liu

The rapid development of 3D technology and computer vision applications have motivated a thrust of methodologies for depth acquisition and estimation. However, most existing hardware and software methods have limited performance due to poor…

Computer Vision and Pattern Recognition · Computer Science 2015-02-13 Lee-Kang Liu , Stanley H. Chan , Truong Q. Nguyen

RGBD images, combining high-resolution color and lower-resolution depth from various types of depth sensors, are increasingly common. One can significantly improve the resolution of depth maps by taking advantage of color information; deep…

Computer Vision and Pattern Recognition · Computer Science 2019-09-10 Oleg Voynov , Alexey Artemov , Vage Egiazarian , Alexander Notchenko , Gleb Bobrovskikh , Denis Zorin , Evgeny Burnaev

In this paper we propose a method for estimating depth from a single image using a coarse to fine approach. We argue that modeling the fine depth details is easier after a coarse depth map has been computed. We express a global (coarse)…

Computer Vision and Pattern Recognition · Computer Science 2016-02-10 Mohammad Haris Baig , Lorenzo Torresani

Image based rendering is a fundamental problem in computer vision and graphics. Modern techniques often rely on depth image for the 3D construction. However for most of the existing depth cameras, the large and unpredictable noises can be…

Computer Vision and Pattern Recognition · Computer Science 2016-02-17 Rashi Chaudhary , Himanshu Dasgupta

Reconstructing an image from noisy and incomplete measurements is a central task in several image processing applications. In recent years, state-of-the-art reconstruction methods have been developed based on recent advances in deep…

Computer Vision and Pattern Recognition · Computer Science 2023-04-17 Christoph Angermann , Simon Göppel , Markus Haltmeier

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

Capturing images under extremely low-light conditions poses significant challenges for the standard camera pipeline. Images become too dark and too noisy, which makes traditional image enhancement techniques almost impossible to apply. Very…

Computer Vision and Pattern Recognition · Computer Science 2020-06-19 Ahmet Serdar Karadeniz , Erkut Erdem , Aykut Erdem

Depth map records distance between the viewpoint and objects in the scene, which plays a critical role in many real-world applications. However, depth map captured by consumer-grade RGB-D cameras suffers from low spatial resolution. Guided…

Computer Vision and Pattern Recognition · Computer Science 2021-12-13 Zhiwei Zhong , Xianming Liu , Junjun Jiang , Debin Zhao , Zhiwen Chen , Xiangyang Ji

To overcome hardware limitations in commercially available depth sensors which result in low-resolution depth maps, depth map super-resolution (DMSR) is a practical and valuable computer vision task. DMSR requires upscaling a low-resolution…

Computer Vision and Pattern Recognition · Computer Science 2023-06-28 Ryan Peterson , Josiah Smith

We propose AdaDS, a generalizable framework for depth super-resolution that robustly recovers high-resolution depth maps from arbitrarily degraded low-resolution inputs. Unlike conventional approaches that directly regress depth values and…

Computer Vision and Pattern Recognition · Computer Science 2026-02-11 Kun Wang , Yun Zhu , Pan Zhou , Na Zhao

Recent progress in robust statistical learning has mainly tackled convex problems, like mean estimation or linear regression, with non-convex challenges receiving less attention. Phase retrieval exemplifies such a non-convex problem,…

Machine Learning · Statistics 2024-10-15 Alex Buna , Patrick Rebeschini

We study iterative signal reconstruction in computed tomography (CT), wherein measurements are produced by a linear transformation of the unknown signal followed by an exponential nonlinear map. Approaches based on pre-processing the data…

Optimization and Control · Mathematics 2024-07-19 Vasileios Charisopoulos , Rebecca Willett

Background: Underwater images, in general, suffer from low contrast and high color distortions due to the non-uniform attenuation of the light as it propagates through the water. In addition, the degree of attenuation varies with the…

Image and Video Processing · Electrical Eng. & Systems 2022-01-20 Prasen Kumar Sharma , Ira Bisht , Arijit Sur

In this paper, we propose an original manner to employ a tangential cover algorithm - minDSS - in order to geometrically reconstruct noisy digital contours. To do so, we exploit the representation of graphical objects by maximal primitives…

Computer Vision and Pattern Recognition · Computer Science 2021-11-11 Antoine Vacavant , Bertrand Kerautret , Fabien Feschet

We propose a novel real-time LiDAR intensity image-based simultaneous localization and mapping method , which addresses the geometry degeneracy problem in unstructured environments. Traditional LiDAR-based front-end odometry mostly relies…

Computer Vision and Pattern Recognition · Computer Science 2023-06-21 Wenqiang Du , Giovanni Beltrame