XVIIIth Congress: XVIIIth Congress

Kraus, Karl; Waldhäusl, Peter

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Multivolume work

Persistent identifier:: 1667435949

Title:: XVIIIth Congress

Sub title:: Vienna, Austria 1996

Year of publication:: 1996

Place of publication:: Vienna

Publisher of the original:: Austrian Society of Surveying and Geoinformation

Identifier (digital):: 1667435949

Language:: English

Editor:: Kraus, Karl; Waldhäusl, Peter

Corporations:: International Society for Photogrammetry and Remote Sensing, Congress, 18., 1996, Wien; International Society for Photogrammetry and Remote Sensing

Adapter:: International Society for Photogrammetry and Remote Sensing, Congress, 18., 1996, Wien; International Society for Photogrammetry and Remote Sensing

Founder of work:: International Society for Photogrammetry and Remote Sensing, Congress, 18., 1996, Wien; International Society for Photogrammetry and Remote Sensing

Other corporate:: International Society for Photogrammetry and Remote Sensing, Congress, 18., 1996, Wien; International Society for Photogrammetry and Remote Sensing

Document type:: Multivolume work

Volume

Persistent identifier:: 1667438379

Title:: XVIIIth Congress

Scope:: 449 Seiten

Year of publication:: 1996

Place of publication:: Vienna

Publisher of the original:: Austrian Society of Surveying and Geoinformation

Identifier (digital):: 1667438379

Illustration:: Illustrationen, Diagramme

Signature of the source:: ZS 312(31,B2)

Language:: English

Additional Notes:: Erscheinungsdatum des Originals ist anhand des Copyrightjahrs ermittelt.

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

Editor:: Kraus, Karl; Waldhäusl, Peter

Corporations:: International Society for Photogrammetry and Remote Sensing, Congress, 18., 1996, Wien; International Society for Photogrammetry and Remote Sensing; International Society for Photogrammetry and Remote Sensing, Commission Instrumentation for Data Reduction and Analysis

Adapter:: International Society for Photogrammetry and Remote Sensing, Congress, 18., 1996, Wien; International Society for Photogrammetry and Remote Sensing; International Society for Photogrammetry and Remote Sensing, Commission Instrumentation for Data Reduction and Analysis

Founder of work:: International Society for Photogrammetry and Remote Sensing, Congress, 18., 1996, Wien; International Society for Photogrammetry and Remote Sensing; International Society for Photogrammetry and Remote Sensing, Commission Instrumentation for Data Reduction and Analysis

Other corporate:: International Society for Photogrammetry and Remote Sensing, Congress, 18., 1996, Wien; International Society for Photogrammetry and Remote Sensing; International Society for Photogrammetry and Remote Sensing, Commission Instrumentation for Data Reduction and Analysis

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:: Processing and Display of Three-Line Imagery at a Digital Photogrammetric Workstation Christoph Dörstel [...] Timm Ohlhof [...]

Document type:: Multivolume work

Structure type:: Chapter

Processing and Display of Three-Line Imagery at a Digital Photogrammetric Workstation Christoph Dörstel Carl Zeiss, D-73446 Oberkochen, Germany Timm Ohlhof Technical University Munich, D-80290 Munich, Germany Commission II, IWG IU/III KEY WORDS: Three Line, Extraterrestrial, Space, Stereoscopic, Digital Photogrammetric Workstation ABSTRACT This paper deals with the integration of three-line imagery into digital photogrammetric workstations. Specific aspects of the inte- gration including the orientation procedure, stereo viewing and image point measurement are presented. The implementation of these aspects into the digital stereoplotter PHODIS ST from Carl Zeiss is dicussed. The results of first tests using MOMS-02 ima- gery shows the applicability of the implemented algorithms. KURZFASSUNG Im vorliegenden Beitrag wird die Integration von Dreizeilenbilddaten in digital photogrammetrische Arbeitsstationen behandelt. Es werden spezielle Aspekte wie z.B. das Orientierungsverfahren, die Stereobetrachtung und die Bildpunktmessung diskutiert. Die Implementierung dieser Aspekte in den digitalen Stereoplotter PHODIS ST von Carl Zeiss wird beschrieben. Die Ergebnisse von ersten Tests mit MOMS-02 Bilddaten zeigen die Anwendbarkeit der implementierten Algorithmen. 1 INTRODUCTION Processing of optoelectronic sensor data at a digital photo- grammetric workstation (DPWS) is an increasingly common demand in practice. Today such data is generally provided by spaceborne sensors. In future, however, airborne sensor data will become more and more relevant. Since the improving ground resolution of the sensors increases the information content of these scenes and thus the image detail considerably, usage will become more common. The most advanced sensor concept makes use of 3 linear CCD arrays. In this case stereo images are acquired quasi simultaneously. The 3 CCD-lines are imaging different terrain at the same time, as the sensor platform moves. The demand for a ,stable three-line geometry" dates back to the year 1970. In his thesis at the Univerity of Brunswick (see Konecny 1996, p. 48), Eugene Derenyis came to the conclusion that only convergent three-line scanning would allow suffi- ciently precise determination of the mutual orientations of line images. This idea was implemented successfully in 1993 for the first MOMS-02/D1 mission. Later stereoplotting of the data from this mission has demonstrated the field of usability in carto- graphy. Dorrer (1995) has shown that the data can be plotted down to a map scale of 1:25000. The relevance of high resolu- tion remote sensing data is shown by Konecny (1996), who states that especially in third-world countries the use of such sensors is the only feasible way to achieve cartographic inital and updating measurements in the forseeable future. The benefits of three-line imagery can be used in particular with a DPWS. This conveniently allows combining the three image strips into displayable stereo scenes, for example. The integration of three-line imagery in an existing DPWS makes sense because existing structures can be used. Procedures such as image and project data manangement, image coordinate measurement, stereoimage display techniques and functions for manual and automatic measurement in stereoscenes may be mentioned. Currently, further missions with three-line sensors are beeing prepared. The Russian MARS96 mission merits special menti- on. The German optoelectronic High Resolution Stereo Camera (HRSC) and Wide-Angle Optoelectronic Stereo Scanner (WAOSS) will be used in 1997-1999 to survey the Mars sur- face in three dimensions by means of digital photogrammetry (Ebner et al. 1994). For the processing of the image data from this mission, the PHODIS ST stereoplotter from Carl Zeiss (Dôrstel 1995; Dôrstel and Willkomm 1994) will be used for stereoscopic image display and interactive point mesurement. For topographic mapping, the PHOCUS photogrammetric and cartographic data acquisition system from Carl Zeiss will be used. Methods developed for three-line imagery should in principle also be suited to be used with MOMS-02/D2 or MOMS- 2P/PRIRODA data. This paper describes the conceptional requirements for processing of three-line images at DPWS. Apart from the used orientation and display methods, the processing procedures are illustrated by describing the integration in PHODIS ST. 2 PROCESSING OF THREE-LINE IMAGERY 2.1 Digital Photogrammetric Workstations As defined by Heipke (1993), Digital Photogrammetric Work- stations are systems consisting of hardware and software for deriving GIS/CAD input data and other photogrammetric pro- ducts from digital imagery using manual, semi-automatic and automatic techniques. Compared with analytical plotters DPWS offers numerous advantages, e.g. the automation of substantial parts of the photogrammetric processing chain, simultaneous processing of any number of images, integration of image processing facilities and stereo viewing of several operators simultaneously. Besides these components, DPWS should be equipped with subpixel measuring facilities and should allow for continuous roaming, zooming and rotating images. The stereo viewing on the screen enables the human operator to interactively measure tie and control points, to 72 International Archives of Photogrammetry and Remote Sensing. Vol. XXXI, Part B2. Vienna 1996 check th stereo pl design aı wman et The exis red by fr imagery, red. The e Cor e Atl In the pa reophoto Kratky 1 Dorrer e the digit images. . plotters fully dig MOMS- workstat Schiewe to hardw 2.2: P For bett: chain fo is showr Gro iof Figure The inp camera data as especial more im

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