XVIIIth Congress: Commission VI

Kraus, Karl; Waldhäusl, Peter

Bibliographic data

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:: 1677550198

Title:: Commission VI

Scope:: 149, 110, 92 Seiten

Year of publication:: 1996

Place of publication:: Vienna

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

Identifier (digital):: 1677550198

Illustration:: Illustrationen, Diagramme

Signature of the source:: ZS 312(31,B6)

Language:: English

Additional Notes:: Die Vorlage enthält insgesamt 3 Werke: Commission VI (Seiten 1-149); National reports (Seiten 1-110); Special sessions (Seiten 1-92)

Other Title:: Enthaltendes Werk: National Reports; Enthaltendes Werk: Special sessions

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 Economic, Professional, and Educational Aspects of Photogrammetry and Remote Sensing

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 Economic, Professional, and Educational Aspects of 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; International Society for Photogrammetry and Remote Sensing, Commission Economic, Professional, and Educational Aspects of Photogrammetry and Remote Sensing

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 Economic, Professional, and Educational Aspects of 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:: Commission VI

Document type:: Multivolume work

Structure type:: Chapter

Chapter

Title:: LEARNING DIGITAL PHOTOGRAMMETRY BY MEANS OF PERSONAL COMPUTERS. Joachim Höhle [...] Commission VI, Working Group 2

Document type:: Multivolume work

Structure type:: Chapter

LEARNING DIGITAL PHOTOGRAMMETRY BY MEANS OF PERSONAL COMPUTERS Joachim Höhle Department of Development and Planning Aalborg University Denmark Commission VI, Working Group 2 KEY WORDS: Training. ABSTRACT: Computer-Assisted Learning, Digital Photogrammetry, Computer, Programming, Experience, Education, The new CAL program “Learning about digital photogrammetry” of Aalborg University is presented. The pedagogical and the technical concepts of "LDIP" are explained. One theme, the automatic measurement of réseau crosses and fiducial marks, is presented in more detail. Experiences from the development and the use of the finished parts of "LDIP" are discussed. KURZFASSUNG: Das neue CAL Programm "Lernen über digitale Photogrammetrie" der Universitát Aalborg wird vorgestellt. Das dem Programm zugrunde liegende pádagogische und technische Konzept wird erláutert. Ein Thema, die automatische Messung von Réseau- Kreuzen und Rahmenmarken, wird ausführlicher behandelt. Erfahrungen von der Entwicklung und von der Benutzung der fertig gestellten Teile von "LDIP" werden diskutiert. 1. INTRODUCTION When using digital imagery, the measuring process can be automated partially. However, the computer-based evaluation systems are rather sophisticated and the amount of data to be processed is usually huge (approximately 100 Mb per aerial image). This means that these systems are expensive, and they also change quickly. The education in photogrammetry at university level can neither afford all of the latest imaging and image evaluation systems nor buy it in considerable numbers for the training of a large number of students. This is where computer-assisted learning (CAL) comes into focus. The equal treatment of students, their active role in the learning process and their motivation to work with computers are some of the reasons for CAL gaining in popularity. Besides mass education, distance learning and self-study are good reasons for applying CAL. At Aalborg University CAL has been used since 1987, and various programs for PCs have been developed and used in the education of land surveyors (Héhle, J., 1992). Recently, new tools were intro- duced, for example more advanced personal computers and storage devices like CD-ROM as well as the Photo-CD services (Hóhle, J., 1994). By means of these new tools a new development was started by the author. The program is called "Learning about Digital Photogrammetry" (“LDIP”) and it deals with various processes in digital photogrammetry and image processing. It is the main purpose of this paper to present this new learning program and to demonstrate the power of the new possibilities for CAL in photogrammetry. 2. THE LEARNING PROGRAM "LDIP" “Learning about digital photogrammetry" (“LDIP”) is the title of a learning program currently under development at Aalborg University (see fig. 1). The contents will cover themes like rectification of imagery, generation of perspective views, correlation, compression techniques, and standard image formats. 61 EARNING EL D IG 1] TAL P| HOTOGRAMMETRY x À 'Computer -Assisted Learning -program for photogrammetry and image processing from Aalborg University Denmark © QUIT D HELP ar = MAIN MENU INFORMATION Fig. 1. 'Front page' of the CAL program "LDIP". The fields with the icons and text on the bottom line are used for controlling the program. In the following, the pedagogical and technical concept and its realization is explained with the example of one theme. The presented information about this theme shall be described as well as the exercises to it. First the experiences, when using the programs at the surveying and mapping education shall also be mentioned. 2.1 General description of the theme "Automatic mea- surement by means of correlation" The evaluation of images starts with the measurement of fiducial marks. These are well-defined marks at the edges of the image. The connecting lines between the "fiducials" define the image coordinate system and its origo which is the principal point of the image. In order to reconstruct the image International Archives of Photogrammetry and Remote Sensing. Vol. XXXI, Part B6. Vienna 1996

Access restriction

Copyright

fullscreen: Commission VI (Part B6)

Multivolume work

Volume

Chapter

Chapter

Table of contents

Cite and reuse

Volume

Chapter

Image

Image fragment

Citation links

Citation recommendation