Proceedings, XXth congress: Proceedings, XXth congress

Altan, M. Orhan

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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:: CLOSE-RANGE PHOTOGRAMMETRY WITH AMATEUR CAMERA Dimitar Jechev

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 photographs have not been used, as it is expected, that these are the areas of grossest distortion. i o o : es © Os sera T5 RE eh Figure 2. Point location 2.3. Results The co-ordinates of 33 geodetically determined points have been measured from the stereo model. The differences between geodetical co-ordinates and the ones, defined by photogrammteric method, have been calculated, as well as the RMS of photogrammetrically defined co-ordinates (see Ttable 1). RMS [cm +1.2 +1.4 +1.9 Axes along axis X along axis Z lane XZ in debt (along axis Y) +6.1 Table 1. Accuracy assessment in picture The co-ordinates, established by photogrammertric method have been examined for systematic errors, whereas the theoretical and empirical values of the mean absolte errors and median errors: Theoretical = 0.80 m (4) Viheoretical = 0.67 m where; r is the mean absolte error, m is the RMS, V is the median error. The comparison shows standard distribution of errors of photogrammetrically defined co-ordinates (see Table 2 and Table 3). Mean absolte X [em] Z [em] Y [em] Empirical +1.0 xi. XS. 1 Theoretical +10 £1.1 t4.9 Table 2. Mean absolte error Median X [cm] Z [cm] Y [cm] Empirical +0.8 +0.9 +4.7 Theoretical +0.8 +1.0 +4. 1 Table 3. Median error The frontage of the building has been vectorised in stereo mode, the three dimensional model (DTM) of its surface and ortho- image have been created. The co-ordinates of 30 points have been recognised from the ortho-image and have been compared "to the ones, obtained from the geodetic measurements. The RMS for the location of points from ortho-image has been calculated to be + 2.2 cm. 3. CONCLUSIONS e The shortcomings of non-metric camera can be eliminated by usage of special software. e In order to make adjustment by means of self-calibrating at least 5 control points or 9 control distances must be measured. Having known camera parameters, the number of control data is reduced. e The accuracy of the ortho-image directly depends on the quality of the digital three dimensional model (DTM) of the object and does not exceed the one of the stereo model. e The unknown lens distortion and the inconsistency of the parameters of internal orientation did not render systematic influence on the results of the experiment. e The results from the experiment show, that this method completely meets the requirements of the assigned task and could successfully be applied, being an inexpensive and efficient technology for application in various fields, such as preservation of building frontages of cultural monuments. REFERENCE: l. Non-topographic photogrammetry, 2nd edition. 1989, American Society for Photogrammetry and Remote Sensing, Falls Church, Virginia. 138

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