Experimental Validation of Close-Range Photogrammetric Measurement Performance of Doubly Curved Surfaces

2006 ◽  
Author(s):  
Eric Flint ◽  
Jonathan Hall ◽  
Jason Lindler
Keyword(s):  
Experimental Validation ◽  
Curved Surfaces ◽  
Close Range ◽  
Doubly Curved ◽  
Photogrammetric Measurement

scholarly journals Optimal development of doubly curved surfaces

2000 ◽  
Vol 17 (6) ◽  
pp. 545-577 ◽  
Author(s):  
Guoxin Yu ◽  
Nicholas M. Patrikalakis ◽  
Takashi Maekawa
Keyword(s):  
Curved Surfaces ◽  
Optimal Development ◽  
Doubly Curved

Use of Laser Scanner for Digital Surveying of the Sarnicli Inn and the Byzantine Cistern Underneath

2017 ◽  
pp. 227-254
Author(s):  
Gülhan Benli ◽  
Eylem Görmüş Ekizce
Keyword(s):  
Cultural Heritage ◽  
Protected Areas ◽  
Laser Scanning ◽  
Laser Scanner ◽  
3D Scanning ◽  
Measurement Methods ◽  
Advanced Technology ◽  
Laser Scanners ◽  
Close Range ◽  
Photogrammetric Measurement

Measurement methods including traditional measurement methods, topographic and photogrammetric measurement methods, measurements via laser scanning devices and aerial photogrammetric measurement methods obtained using model airplane or model helicopters are used in documentation of the cultural heritage and protected areas in our country. Although data obtained by Aerial Lidar technology accepted as advanced technology over the past decade, enables faster data comparing to others as data obtained by terrestrial laser scanners provide millimetre level accuracy close-range scanning methods are preferred in architectural facades scanning during the process of surveying of a single building. Inclusion process of a Byzantine cistern in Istanbul, Turkey, which was undiscovered for centuries, in our cultural heritage as well as surveying stages of the cistern along with the inn structure built over, using 3D scanning technology shall be described within this study.

System to represent doubly-curved surfaces

1990 ◽  
Vol 14 (3-4) ◽  
pp. 435-443
Author(s):  
G. Landgraf ◽  
K.-H. Modler ◽  
M. Ziegenhorn
Keyword(s):  
Curved Surfaces ◽  
Doubly Curved

scholarly journals INFLUENCE OF RAW IMAGE PREPROCESSING AND OTHER SELECTED PROCESSES ON ACCURACY OF CLOSE-RANGE PHOTOGRAMMETRIC SYSTEMS ACCORDING TO VDI 2634

2016 ◽  
Vol XLI-B5 ◽  
pp. 107-113 ◽  
Author(s):  
J. Reznicek ◽  
T. Luhmann ◽  
C. Jepping
Keyword(s):  
Lens Distortion ◽  
Test Field ◽  
Image Preprocessing ◽  
Multi Scale ◽  
Estimated Parameters ◽  
Close Range ◽  
Validation Procedure ◽  
Measuring Lines ◽  
Target Detecting ◽  
Photogrammetric Measurement

This paper examines the influence of raw image preprocessing and other selected processes on the accuracy of close-range photogrammetric measurement. The examined processes and features includes: raw image preprocessing, sensor unflatness, distance-dependent lens distortion, extending the input observations (image measurements) by incorporating all RGB colour channels, ellipse centre eccentricity and target detecting. The examination of each effect is carried out experimentally by performing the validation procedure proposed in the German VDI guideline 2634/1. The validation procedure is based on performing standard photogrammetric measurements of high-accurate calibrated measuring lines (multi-scale bars) with known lengths (typical uncertainty = 5 μm at 2 sigma). The comparison of the measured lengths with the known values gives the maximum length measurement error LME, which characterize the accuracy of the validated photogrammetric system. For higher reliability the VDI test field was photographed ten times independently with the same configuration and camera settings. The images were acquired with the metric ALPA 12WA camera. The tests are performed on all ten measurements which gives the possibility to measure the repeatability of the estimated parameters as well. The influences are examined by comparing the quality characteristics of the reference and tested settings.

Low cost digital close range photogrammetric measurement of an as-built anchor handling tug hull

2016 ◽  
Vol 119 ◽  
pp. 67-74 ◽  
Author(s):  
Collin H.H. Tang ◽  
H.E. Tang ◽  
Peter K.J. Tay
Keyword(s):  
Low Cost ◽  
Close Range ◽  
Photogrammetric Measurement

Mapping of tubular woven composite preforms on to doubly-curved surfaces

2001 ◽  
Vol 33 (14) ◽  
pp. 1035-1048 ◽  
Author(s):  
Shrikant B. Sharma ◽  
Prasad Potluri ◽  
John Atkinson ◽  
Isaac Porat
Keyword(s):  
Curved Surfaces ◽  
Woven Composite ◽  
Doubly Curved

Use of Laser Scanner for Digital Surveying of the Sarnicli Inn and the Byzantine Cistern Underneath

2019 ◽  
pp. 275-303
Author(s):  
Gülhan Benli ◽  
Eylem Görmüş Ekizce
Keyword(s):  
Cultural Heritage ◽  
Protected Areas ◽  
Laser Scanning ◽  
Laser Scanner ◽  
3D Scanning ◽  
Measurement Methods ◽  
Advanced Technology ◽  
Laser Scanners ◽  
Close Range ◽  
Photogrammetric Measurement

Measurement methods including traditional measurement methods, topographic and photogrammetric measurement methods, measurements via laser scanning devices and aerial photogrammetric measurement methods obtained using model airplane or model helicopters are used in documentation of the cultural heritage and protected areas in our country. Although data obtained by Aerial Lidar technology accepted as advanced technology over the past decade, enables faster data comparing to others as data obtained by terrestrial laser scanners provide millimetre level accuracy close-range scanning methods are preferred in architectural facades scanning during the process of surveying of a single building. Inclusion process of a Byzantine cistern in Istanbul, Turkey, which was undiscovered for centuries, in our cultural heritage as well as surveying stages of the cistern along with the inn structure built over, using 3D scanning technology shall be described within this study.

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