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DELTAS: Depth Estimation by Learning Triangulation And densification of Sparse points [article]

Ayan Sinha, Zak Murez, James Bartolozzi, Vijay Badrinarayanan, Andrew Rabinovich
2020 arXiv   pre-print
Distinct from cost volume approaches, we propose an efficient depth estimation approach by first (a) detecting and evaluating descriptors for interest points, then (b) learning to match and triangulate  ...  a small set of interest points, and finally (c) densifying this sparse set of 3D points using CNNs.  ...  Conclusion In this work we developed an efficient depth estimation algorithm by learning to triangulate and densify sparse points in a multi-view stereo scenario.  ... 
arXiv:2003.08933v2 fatcat:yookks5kuzcwfasa7rgqx4z224

A Confidence-based Iterative Solver of Depths and Surface Normals for Deep Multi-view Stereo [article]

Wang Zhao, Shaohui Liu, Yi Wei, Hengkai Guo, Yong-Jin Liu
2022 arXiv   pre-print
Experimental results on ScanNet and RGB-D Scenes V2 demonstrate state-of-the-art performance of the proposed deep MVS system on multi-view depth estimation, with our proposed solver consistently improving  ...  the depth quality over both conventional and deep learning based MVS pipelines.  ...  An exception of this is DELTAS [43] , which proposes to learn interest points and perform triangulation and densification over sparse points.  ... 
arXiv:2201.07609v1 fatcat:6worss5hcvcltokpxxmk4axp5y

DevianceNet: Learning to Predict Deviance from a Large-Scale Geo-Tagged Dataset

Jin-Hwi Park, Young-Jae Park, Junoh Lee, Hae-Gon Jeon
We also design a convolutional neural network that learns spatio-temporal visual attributes of deviant streets.  ...  In this work, to address this problem, we propose a large-scale dataset and a novel method by adopting a concept of "Deviance" which explains behaviors violating social norms, both formally (e.g. crime  ...  DELTAS: Depth Estimation by Learn- ing Triangulation And densification of Sparse points. In Proceedings of the European conference on computer vision (ECCV). Suel, E.; Polak, J. W.; Bennett, J.  ... 
doi:10.1609/aaai.v36i11.21463 fatcat:mrwwdcown5duxjk5ucnliymfze

A methodology for processing raw LiDAR data to support urban flood modelling framework

A. F. Abdullah, Z. Vojinovic, R. K. Price, N. A. A. Aziz
2012 Journal of Hydroinformatics  
Filtering is a process of automatic detection and interpretation of bare earth and objects from the point cloud of LiDAR data, which results in the generation of a DTM.  ...  Published by: CRC Press/Balkema Summary In the last few decades, the consequences of floods and flash floods in many parts of the world have been devastating, with extensive tangible damages and unprecedented  ...  The research was funded by UNESCO-IHE under the SWITCH project and the Government of Malaysia.  ... 
doi:10.2166/hydro.2011.089 fatcat:eqpnmbd4o5ggjkcxrfkrf6efa4

Sea Level Rise and Implications for Low-Lying Islands, Coasts and Communities [chapter]

2022 The Ocean and Cryosphere in a Changing Climate  
The sum of glacier and ice sheet contributions is now the dominant source of GMSL rise (very high confidence).  ...  Ongoing uncertainties in palaeo sea level reconstructions and modelling hamper conclusions regarding the total magnitudes and rates of past sea level rise (SLR).  ...  , Shishmaref and Kivalina (Alaska, USA), and Shingle Point and Tuktoyaktuk (Mackenzie Delta, Canada).  ... 
doi:10.1017/9781009157964.012 fatcat:m5qkhia5mrehtlcpo3tosqyjdu

Recent advances and challenges of waveform‐based seismic location methods at multiple scales

Lei Li, Jingqiang Tan, Benjamin Schwarz, František Staněk, Natalia Poiata, Peidong Shi, Leon Diekmann, Leo Eisner, Dirk Gajewski
2020 Reviews of Geophysics  
bridges, rock bursts in mines, microseismic events generated by mining and fluid injection/extraction, and microseisms caused by crustal activity.  ...  Plain language summary Earthquakes are a common physical phenomenon involving ground shaking and rupturing of the surface of the Earth.  ...  Acknowledgments We thank the editors and three anonymous reviewers for their careful and constructive comments, which helped to improve the quality of the manuscript.  ... 
doi:10.1029/2019rg000667 fatcat:zecvs5ybhfd6xpstjxphf3v2yu

Drones for Biodiversity Conservation and Ecological Monitoring

Kristy Zhang
2019 Figshare  
Drones for Biodiversity Conservation and Ecological Monitoring  ...  We also thank the Ebro Delta Natural Park and the Rangers Service of the Catalan Government for the facilities offered during the capture of UAV images.  ...  K-D. was supported by the National Research, Development and Innovation Fund (NRDI Fund) of Hungary (Nos. K112576, K129068).  ... 
doi:10.6084/m9.figshare.11322092.v1 fatcat:lzjshsnscnb2pnnn6j4k5vfejy

The Potential of Optical UAS Data for Predicting Surface Soil Moisture in a Peatland across Time and Sites

Raul Sampaio de Lima, Kai-Yun Li, Ants Vain, Mait Lang, Thaisa Fernandes Bergamo, Kaupo Kokamägi, Niall G. Burnside, Raymond D. Ward, Kalev Sepp
2022 Remote Sensing  
In this respect, we predicted SM at 10 cm depth using partial least squares regression (PLSR) models based on optical UAS data and assessed the potential of this framework to provide accurate predictions  ...  For this, we evaluated models' performance using several datasets and the contribution of spectral and photogrammetric predictors on the explanation of SM.  ...  Conflicts of Interest: The authors declare no conflict of interest.  ... 
doi:10.3390/rs14102334 fatcat:akdrjn667veitlliklnvj3fpgi

Table of Contents

2016 Australian Journal of Primary Health  
Five months of in-depth participant-observation provided a triangulation of data via analysis of project documents, interviews, and observational field notes.  ...  The deliverable by the end of this project will be a simple method to install and calibrate a groundwater table depth observation well to produce an accurate estimation of evapotranspiration and groundwater  ... 
doi:10.1071/pyv22n4toc fatcat:hrwhnxdpjreslhuwi7y4edqmo4

Engineering, Technology & Applied Science Research (ETASR), Vol. 11, No. 2, pp. 6845-7068 [article]

2021 Zenodo  
of science application, technology, and engineering.  ...  ISSN: 1792-8036 and 2241-4487.  ...  ACKNOWLEGEMENT The research reported in this study was conducted at the NED University of Engineering and Technology (NEDUET) and is funded by MoST (Ministry of Science and Technology).  ... 
doi:10.5281/zenodo.4720665 fatcat:mk2prflstjaa3bhkjenwy22s6u

Face Recognition and Recovery under Simultaneous Real-World Degradations

Utsav Prabhu
of the face caused by external objects or other facial components, illumination artifacts on the face caused by scene illuminants, and low-resolution images caused by distance of acquisition, sensor specification  ...  We address this model construction problem by suggesting two novel weighted variants to classical model learning techniques: we build [...]  ...  ACKNOWLEDGEMENTS I'm fortunate to have been guided by several individuals through the course of my PhD, each of whom have played an immeasurable role towards the successful completion of this degree.  ... 
doi:10.1184/r1/7339100.v1 fatcat:4z4syaas3bbztousstuyieyglm

Pile foundations for offshore wind turbines: Numerical and experimental investigations on the behaviour under short-term and long-term cyclic loading [article]

Pablo Cuéllar, Technische Universität Berlin, Technische Universität Berlin, Stavros Savidis
The general picture that arises from these investigations is that of a foundation subject to hardening and soil densification in the long term, but also affected by transient episodes of significant softening  ...  Method, and a second empirical block for the study of long-term phenomena by means of model tests in a reduced scale.  ...  The depth of the rotation centre, h R , which in principle is unknown and variable, probably tending to move upwards as the densification proceeds, can be estimated experimentally by means of strain gauges  ... 
doi:10.14279/depositonce-2760 fatcat:63f75cs4hbdabllikxs6qfj7gu

Quantitative assessment of spatial sound distortion by the semi-ideal recording point of a hear-through device

Pablo Hoffmann, Flemming Christensen, Dorte Hammersho/i
2013 Journal of the Acoustical Society of America  
We then investigate the relationship between the recognition performance and a number of inflection points with the delta power of various environmental sounds.  ...  adjacent land use and sustainable urban densification.  ...  The seabed sound speed and attenuation are estimated by minimizing the cost function at each step.  ... 
doi:10.1121/1.4805375 fatcat:u4bvxh6karet3avpjdhpfwqpf4

Synthesis of Carbon Nanotubes on Carbon Fibre for Hierarchical Composites

Wojciech Szmyt
The findings were supported by fracture analysis of the pull-out surfaces by scanning electron microscopy and energy-dispersive X-ray spectroscopic elemental analysis.  ...  Moreover, the mechanisms of the detrimental iron migration into CFs are identified and quantified by means of ptychographic Xray computed tomography and scanning transmission electron microscopy (STEM)  ...  by atomic layer deposition (ALD), electron-beam deposited without annealing and sputter-deposited.  ... 
doi:10.5451/unibas-ep81219 fatcat:6vhswgtu65ebvacaek5wflt65q

African Cities and the Development Conundrum

Till Förster, Carole Ammann
2018 Revue Internationale de Politique de Développement  
This is an open access title distributed under the terms of the prevailing CC-BY-NC License at the time of publication, which permits any non-commercial use, distribution, and reproduction in any medium  ...  NV reserves the right to protect the publication against unauthorized use and to authorize dissemination by means of offprints, legitimate photocopies, microform editions, reprints, translations, and secondary  ...  Acknowledgements This chapter is based on the author's dissertation, which was supported by the Department of Architecture of ETH Zurich, the Future Cities Laboratory in Singapore, and the Swiss National  ... 
doi:10.4000/poldev.2621 fatcat:fvgq4bqn3fdbfcmyeqzgeumuoa
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