Proceedings, XXth congress: Proceedings, XXth congress

Altan, M. Orhan

Bibliographic data

Multivolume work

Persistent identifier:: 1663674213

Title:: Proceedings, XXth congress

Sub title:: Istanbul, 12 - 23 July 2004

Year of publication:: 2004

Place of publication:: Istanbul

Publisher of the original:: [Verlag nicht ermittelbar]

Identifier (digital):: 1663674213

Language:: English

Additional Notes:: Erscheinungsdatum des Originals ist aus dem Copyrightjahr ermittelt.; Auch bezeichnet als XXth International Congress for Photogrammetry and Remote Sensing

Editor:: Altan, M. Orhan

Corporations:: International Society for Photogrammetry and Remote Sensing, Congress, 20., 2004, Istanbul; International Society for Photogrammetry and Remote Sensing, Commission Primary Data Acquisition

Adapter:: International Society for Photogrammetry and Remote Sensing, Congress, 20., 2004, Istanbul; International Society for Photogrammetry and Remote Sensing, Commission Primary Data Acquisition

Founder of work:: International Society for Photogrammetry and Remote Sensing, Congress, 20., 2004, Istanbul; International Society for Photogrammetry and Remote Sensing, Commission Primary Data Acquisition

Other corporate:: International Society for Photogrammetry and Remote Sensing, Congress, 20., 2004, Istanbul; International Society for Photogrammetry and Remote Sensing, Commission Primary Data Acquisition

Document type:: Multivolume work

Volume

Persistent identifier:: 166368779X

Title:: Proceedings, XXth congress

Scope:: IV, 226 Seiten

Year of publication:: 2004

Place of publication:: Istanbul

Publisher of the original:: [Verlag nicht ermittelbar]

Identifier (digital):: 166368779X

Illustration:: Illustrationen, Diagramme

Signature of the source:: ZS 312(35,B8)

Language:: English

Additional Notes:: Erscheinungsdatum des Originals ist aus dem Copyrightjahr ermittelt.

Usage licence:: Attribution 4.0 International (CC BY 4.0)

Editor:: Altan, M. Orhan

Corporations:: International Society for Photogrammetry and Remote Sensing, Congress, 20., 2004, Istanbul; International Society for Photogrammetry and Remote Sensing

Adapter:: International Society for Photogrammetry and Remote Sensing, Congress, 20., 2004, Istanbul; International Society for Photogrammetry and Remote Sensing

Founder of work:: International Society for Photogrammetry and Remote Sensing, Congress, 20., 2004, Istanbul; International Society for Photogrammetry and Remote Sensing

Other corporate:: International Society for Photogrammetry and Remote Sensing, Congress, 20., 2004, Istanbul; International Society for Photogrammetry and Remote Sensing

Publisher of the digital copy:: Technische Informationsbibliothek Hannover

Place of publication of the digital copy:: Hannover

Year of publication of the original:: 2019

Document type:: Volume

Collection:: Earth sciences

Chapter

Title:: RECONSTRUCTION OF BUILDINGS FROM A SINGLE UAV IMAGE WANG Jizhou, Lin Zongjian, LI Chengming

Document type:: Multivolume work

Structure type:: Chapter

International Archives of the Photogrammetry, Remote Sensing and Spatial Information Sciences, Vol XXXV, Part B-YF. Istanbul 2004 2 (X KG) Fr x ye -x)-KE( xr o r- (x =X) tQ = voi. b. Computing the joint points Fig.5 shows the projection of a building in a photo. In principle, all the lines that respectively parallel X, Y and Z coordinate axis should join in three points 7, J and K. If we pick some points along /3 and get the coordinate sets ((x,.yj). (X5). ... (XY). then we can get the line 4x + By = / using the formula below. Tr Tw Ty yy Tutt Be EX Y sts yx av y y And by the same means, we can get the description of line 24, then compute the coordinate of point / using the following formula. (3) Us Nat B3 —VB*N AB CS 449 8° —S AR*S AR NB*YV 4^ V 4* Y 4B SAL*S B Y AB" Y dB / Y= And the coordinates of point / and K can be computed using the formula 3and 4. To ensure the precision of results, in practice, we usually take redundant points and compute the average. Fig.5 The Joint Points in A Image c. Computing the angle elements After the determination of the three joint points, next we will compute the three exterior angle elements 4, aandk. Taking one side face A of the building showed in Fig.5 as an example, we 102 calculate the three elements. Fig.6 shows the detail. The angle a is photo obliquity, and the range is from 0°to 90°. 4 is attitude angle, and it also ranges from 0°to 90°. And K is the angle from x coordinate axis counter-clockwise to the u coordinate axis with the range from 0°to 360°. Fig.6 The Angle Elements in A Image From the geometric relation of special Points, Lines and Faces in photogrammetry, obviously So: o/K and ov! /K, so we can draw the conclusion that oaS, Isa, “SaK, loa and Koa are all right-angled triangles. Based on relations of the right- angle and the coordinate axis, we can deduce the following formula. A= £ISa a = LSao (5) K= Zxu= Zxu = io! + dou = 2xol + Zola And the anglekis determined by the quadrant of the point a which is the cross of /K and Sv. Using coordinates of the points I, J. K, o and f, we can compute the length of oa, Sa, Jo and SI, then we can calculate the three exterior angle elements 4, dandk by the formula 6. +100 A = arcsin(— C s, f. & = arcsın(— (6) yı'=) Joa Ku are ( + arcsin(—) X; 7X9 lo d. Computing the scale Based on the above parameters xy, yy, f, 4,Q and K, we can found the model of building in object space. But without any coordinate and length information of reality, we can't determinate the size of the model. There are a few kinds of means could be used to get the scale between thé model and reality. For that we have already possessed plenty of digital Inter. — maj con Foll neci ima On met text rece the Tod othe how quic meti buil: prac effe mod

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