World Library  


Add to Book Shelf
Flag as Inappropriate
Email this Book

Validation Tests of Open-source Procedures for Digital Camera Calibration and 3D Image-based Modelling : Volume Xl-5/W2, Issue 1 (22/07/2013)

By Toschi, I.

Click here to view

Book Id: WPLBN0004015409
Format Type: PDF Article :
File Size: Pages 6
Reproduction Date: 2015

Title: Validation Tests of Open-source Procedures for Digital Camera Calibration and 3D Image-based Modelling : Volume Xl-5/W2, Issue 1 (22/07/2013)  
Author: Toschi, I.
Volume: Vol. XL-5/W2, Issue 1
Language: English
Subject: Science, Isprs, International
Collections: Periodicals: Journal and Magazine Collection (Contemporary), Copernicus Publications
Historic
Publication Date:
2013
Publisher: Copernicus Publications, Göttingen, Germany
Member Page: Copernicus Publications

Citation

APA MLA Chicago

Capra, A., Bertacchini, E., Rivola, R., Castagnetti, C., Toschi, I., & Dubbini, M. (2013). Validation Tests of Open-source Procedures for Digital Camera Calibration and 3D Image-based Modelling : Volume Xl-5/W2, Issue 1 (22/07/2013). Retrieved from http://ebook2.worldlibrary.net/


Description
Description: DIEF, Dept. of Engineering Enzo Ferrari, University of Modena and Reggio Emilia, Via Vignolese 905, 41125, Modena, Italy. Among the many open-source software solutions recently developed for the extraction of point clouds from a set of un-oriented images, the photogrammetric tools Apero and MicMac (IGN, Institut Géographique National) aim to distinguish themselves by focusing on the accuracy and the metric content of the final result. This paper firstly aims at assessing the accuracy of the simplified and automated calibration procedure offered by the IGN tools. Results obtained with this procedure were compared with those achieved with a test-range calibration approach using a pre-surveyed laboratory test-field. Both direct and a-posteriori validation tests turned out successfully showing the stability and the metric accuracy of the process, even when low textured or reflective surfaces are present in the 3D scene. Afterwards, the possibility of achieving accurate 3D models from the subsequently extracted dense point clouds is also evaluated. Three different types of sculptural elements were chosen as test-objects and ground-truth data were acquired with triangulation laser scanners. 3D models derived from point clouds oriented with a simplified relative procedure show a suitable metric accuracy: all comparisons delivered a standard deviation of millimeter-level. The use of Ground Control Points in the orientation phase did not improve significantly the accuracy of the final 3D model, when a small figure-like corbel was used as test-object.

Summary
VALIDATION TESTS OF OPEN-SOURCE PROCEDURES FOR DIGITAL CAMERA CALIBRATION AND 3D IMAGE-BASED MODELLING


 

Click To View

Additional Books


  • Integrating Scale and Space in 3D City M... (by )
  • Multiscale and Multitemporal Urban Remot... (by )
  • Lidar Segmentation Using Suitable Seed P... (by )
  • Automatic Single Tree Detection in Plant... (by )
  • Three Dimensional Deformation of Mining ... (by )
  • Paleovalleys Mapping Using Remote Sensin... (by )
  • 3D Documentation of Archeological Remain... (by )
  • Surface Complexity Component of Lidar Po... (by )
  • Stochastic Reasoning for Uav Supported R... (by )
  • Climate Absolute Radiance and Refractivi... (by )
  • Automatic 3D Building Model Generation f... (by )
  • Biomass Estimation Using Vertical Forest... (by )
Scroll Left
Scroll Right

 



Copyright © World Library Foundation. All rights reserved. eBooks from World eBook Library are sponsored by the World Library Foundation,
a 501c(4) Member's Support Non-Profit Organization, and is NOT affiliated with any governmental agency or department.