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The prioritized-layered projection algorithm for visible set estimation

J.T. Klosowski, C.T. Silva
2000 IEEE Transactions on Visualization and Computer Graphics  
AbstractÐPrioritized-Layered Projection (PLP) is a technique for fast rendering of high depth complexity scenes.  ...  It works by estimating the visible polygons of a scene from a given viewpoint incrementally, one primitive at a time.  ...  ACKNOWLEDGMENTS The authors would like to thank Dirk Bartz and Michael Meiûner for the city model, Bengt-Olaf Schneider for suggesting adding star-shape constraints to the front, Fausto Bernardini, Paul  ... 
doi:10.1109/2945.856993 fatcat:i6jms27vl5bhpc6opck7exokfa

Efficient conservative visibility culling using the prioritized-layered projection algorithm

J.T. Klosowski, C.T. Silva
2001 IEEE Transactions on Visualization and Computer Graphics  
AbstractÐWe propose a novel conservative visibility culling technique based on the Prioritized-Layered Projection (PLP) algorithm.  ...  We do this by adding a second phase to PLP which uses image-space techniques for determining the visibility status of the remaining geometry.  ...  Thanks to Ned Greene for providing the Skyscraper dataset and for helping in tracking down hard to find references.  ... 
doi:10.1109/2945.965350 fatcat:hlflh73yd5eotgcopmdikplh4q

Improving Post-Earthquake Insurance Claim Management: A Novel Approach to Prioritize Geospatial Data Collection

Massimiliano Pittore, Marc Wieland, Mustafa Errize, Cagatay Kariptas, Ismet Güngör
2015 ISPRS International Journal of Geo-Information  
As a measure to mitigate the consequences of such events, and to increase the resilience of the exposed communities, the Turkish Catastrophe Insurance Pool (TCIP) has been set up to provide affordable  ...  In this paper we explore an integrated approach based on mobile mapping and ad hoc prioritization techniques to streamline the data collection and analysis process, with application to both the pre-event  ...  The authors would also like to thank Kevin Fleming for the constructive discussions and Stefan Mikulla for his contribution to the realization of the mobile mapping system.  ... 
doi:10.3390/ijgi4042401 fatcat:tnh6dqtfevhj5mvjguzslm73fe

Machine Learning Techniques for Software Quality Assurance: A Survey [article]

Safa Omri, Carsten Sinz
2021 arXiv   pre-print
The ability to predict which components in a large software system are most likely to contain the largest numbers of faults in the next release helps to better manage projects, including early estimation  ...  In this survey, we discuss various approaches in both fault prediction and test case prioritization, also explaining how in recent studies deep learning algorithms for fault prediction help to bridge the  ...  and the correct model that we try to predict for given data points. (2) Variance: the variance of a model is the variability of the model prediction for given data points. (3) Bias/variance tradeoff :  ... 
arXiv:2104.14056v1 fatcat:b6hch7gimbefhpz6n5552waq5i

Interactive Level-of-Detail Selection Using Image-Based Quality Metric for Large Volume Visualization

Chaoli Wang, Antonio Garcia, Han-wei Shen
2007 IEEE Transactions on Visualization and Computer Graphics  
for visibility estimation.  ...  Experimental results on large scientific and medical data sets demonstrate the effectiveness and efficiency of our algorithm.  ...  The first author would like to thank Jian Huang, Ross J. Toedte, and Jinzhu Gao for initial discussions of this work. Finally, the authors would like to thank the reviewers for their helpful comments.  ... 
doi:10.1109/tvcg.2007.15 pmid:17093341 fatcat:x5qxbb7rpnahtahces7j3i4dje

Surface reconstruction by layer peeling

Chi-Wan Lim, Tiow-Seng Tan
2006 The Visual Computer  
This gives confidence to the fact that the layer peeling algorithm does in fact produce correct output of high quality.  ...  Even when reduced to 1 32 of their original size, the layer peeling algorithm is able to correctly reconstruct them without suffering from visible distortion. • The layer peeling algorithm is mainly  ...  Appendix A The Layer Peeling Software The layer peeling software is an application which implements the algorithm de- A.1 Software Setting There are four parameter settings for both versions.  ... 
doi:10.1007/s00371-006-0048-9 fatcat:3fhb6ujalbdlposh7u5aaj2wwe

Long-term map maintenance pipeline for autonomous vehicles [article]

Julie Stephany Berrio, Stewart Worrall, Mao Shan, Eduardo Nebot
2020 arXiv   pre-print
In this paper, we present new algorithms to maintain a featured-based map.  ...  For autonomous vehicles to operate persistently in a typical urban environment, it is essential to have high accuracy position information.  ...  ACKNOWLEDGMENT This work has been funded by the ACFR, the University of Sydney through the Dean of Engineering and Information Technologies PhD Scholarship (South America) and University of Michigan /  ... 
arXiv:2008.12449v1 fatcat:5g7mvg35pfcpjdxzcy55ryfmhi

An Efficient Algorithm for Topologically Correct Segmentation of the Cortical Sheet in Anatomical MR Volumes

Nikolaus Kriegeskorte, Rainer Goebel
2001 NeuroImage  
By applying the same method to the inverse object, an alternative set of solutions is determined, correcting the errors by addition instead of deletion of voxels.  ...  The core component of our method is a region growing process that starts deep inside the object, is prioritized by the distanceto-surface of the voxels considered for inclusion and is selftouching-sensitive  ...  Brian Wandell (Stanford University) for the brains they contributed.  ... 
doi:10.1006/nimg.2001.0831 pmid:11467907 fatcat:4kuz77d75jbfbhw5vx743sk76q

Intelligent Avionics with Advanced Clustering

John Meier, Todd Sproull, G. Adam Covington, John W. Lockwood
2008 IEEE Aerospace Conference. Proceedings  
Massive computation and communication is required for distributed real time MTT. In this paper, the K-means clustering algorithm is used to aggregate redundant tracks.  ...  In order to identify redundant data, we use a clustering algorithm to evaluate the large volumes of sensor information.  ...  The fusion application has very limited visibility into the network layer.  ... 
doi:10.1109/aero.2008.4526593 fatcat:ofettazt4vawzfrkvy2r3i7iom

Elevate Project Success Rate with Right Judgement of Complexity and Skill Competency Gap

2019 International journal of recent technology and engineering  
Failures are due to poor visibility of Project complexity and incorrectly estimating right skilled team.  ...  This paper presents two research contributions, firstly an approach to uncover poor estimation of skilled staff for a project with correct complexity mapping, secondly skill-competence index in line with  ...  For Managers: The Skill Matrix Index increases the visibility of employee availability with the required skill set enabling skill tracking and smooth resource allocation.  ... 
doi:10.35940/ijrte.d7759.118419 fatcat:o2nunceoprfdflab5xgl5yhrye

International benchmarking of terrestrial laser scanning approaches for forest inventories

Xinlian Liang, Juha Hyyppä, Harri Kaartinen, Matti Lehtomäki, Jiri Pyörälä, Norbert Pfeifer, Markus Holopainen, Gábor Brolly, Pirotti Francesco, Jan Hackenberg, Huabing Huang, Hyun-Woo Jo (+19 others)
2018 ISPRS journal of photogrammetry and remote sensing (Print)  
The project is designed to benchmark the TLS algorithms by processing identical TLS datasets for a standardized set of forest attribute criteria and by evaluating the results through a common procedure  ...  , and to reveal the capability of recent algorithms for tree-attribute extraction.  ...  Jan Hackenberg would like to thank the financial support from the DIABOLO project from the European Union's Horizon 2020 research and innovation program under grant agreement No 633464.  ... 
doi:10.1016/j.isprsjprs.2018.06.021 fatcat:v7xmwrhj2zha7kthbzd3p6qhdy

Evaluation of on-line analytic and numeric inverse kinematics approaches driven by partial vision input

Ronan Boulic, Javier Varona, Luis Unzueta, Manuel Peinado, Angel Suescun, Francisco Perales
2006 Virtual Reality  
The 3D position of the hands, the head and the center of the trunk segment are extracted in real-time and provided to the body posture recovery algorithmic layer.  ...  Let us mention the cumbersome magnetic equipments, or the underdetermined data set provided by less invasive video-based approaches.  ...  estimated by the IK algorithm.  ... 
doi:10.1007/s10055-006-0024-8 fatcat:2vq4hqi5ebe6nmvdp36l2f3nhe

A Generic Bundle Adjustment Methodology for Indirect RPC Model Refinement of Satellite Imagery

Roger Marí, Carlo de Franchis, Enric Meinhardt-Llopis, Jérémy Anger, Gabriele Facciolo
2021 Image Processing On Line  
A set of tie points, derived from feature tracks detected across the input images, is used to find the optimal corrective rotations by minimization of the reprojection error.  ...  Lastly, the results are also compared to an alternative solution for multi-view stereo pipelines that eludes any explicit correction of the camera models by directly registering independent dense surface  ...  Image Credits The Planet SkySat images used in this work were provided by Kayrros SAS.  ... 
doi:10.5201/ipol.2021.352 fatcat:l7rhsgpc5ncxti7y7fmqnlsxxe

Enhancing and Optimizing the Render Cache [article]

Bruce Walter, George Drettakis, Donald P. Greenberg
2002 Symposium on Rendering  
Interactive rendering often requires the use of simplified shading algorithms with reduced illumination fidelity. Higher quality rendering algorithms are usually too slow for interactive use.  ...  and prioritized sampling.  ...  Acknowledgements Thanks to Hector Yee for providing the lotus model and to our anonymous reviewers for their helpful comments.  ... 
doi:10.2312/egwr/egwr02/037-042 fatcat:x3clnjpvbjcw7cje4apdqbzoti

An Efficient Normalized Rank Based SVM for Room Level Indoor WiFi Localization with Diverse Devices

Yasmine Rezgui, Ling Pei, Xin Chen, Fei Wen, Chen Han
2017 Mobile Information Systems  
The experimental results demonstrate its robustness with no less than 98.75% correct estimation in 93.75% of the tested cases and 100% correct rate in 56.25% of cases.  ...  Moving from RSSI value based analysis to the normalized rank transformation based analysis, the principal features are prioritized and the dimensionalities of signature vectors are taken into account.  ...  Acknowledgments This work is supported by the Shanghai Science and Technology Committee under Grant 15511105100 and the National Science and Technology Major Project under Grant GFZX0301010708.  ... 
doi:10.1155/2017/6268797 fatcat:revy5hxrvjdp3gbu7bpoxavfzq
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