The role of digital components in photogrammetric instrumentations

Bibliographic data

Monograph

Persistent identifier:: 830281363

Title:: The role of digital components in photogrammetric instrumentations

Sub title:: symposium of Torino, Italy ; 2nd - 4th October 1974

Scope:: ca. 200 Seiten in getrennter Zählung

Year of publication:: 1974

Place of publication:: Torino, Italy

Publisher of the original:: [Verlag nicht ermittelbar]

Identifier (digital):: 830281363

Illustration:: Illustrationen, Diagramme

Signature of the source:: T 15 B 1280

Language:: English

Additional Notes:: Literaturangaben

Other Title:: Nebentitel: Digital components in photogrammetric devices

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

Corporations:: International Society for Photogrammetry, Commission, 2

Adapter:: International Society for Photogrammetry, Commission, 2

Founder of work:: International Society for Photogrammetry, Commission, 2

Other corporate:: International Society for Photogrammetry, Commission, 2

Publisher of the digital copy:: Technische Informationsbibliothek Hannover

Place of publication of the digital copy:: Hannover

Year of publication of the original:: 2015

Document type:: Monograph

Collection:: Earth sciences

Chapter

Title:: TRENDS IN DESIGN OF DIGITAL EQUIPMENT FOR PHOTOGRAMMETRIC INSTRUMENTS. U. V. Helava

Document type:: Monograph

Structure type:: Chapter

1 TRENDS IN DESIGN OF DIGITAL EQUIPMENT FOR PHOTOGRAMMETRIC INSTRUMENTS By U. V. Helava Bendix Research Laboratories Southfield, Michigan 48076 U.S.A. ABSTRACT Digital equipment has been incorporated in some photogrammetric instruments for many years; much more of it will be seen in future in struments. The reasons are primarily economical. The designers of photogrammetric instruments must be able to make full use of rapidly advancing digital technology to transfer to the instrument user full benefits of the progress paid for by other parts of economy. This paper reviews the use of digital equipment in photogrammetry as well as the trends in general digital design and explores where such trends may lead in photogrammetry. The conclusion is that the designers of photogram metric instruments are confronted by significant challenges in meeting their future responsibilities. The continued advances in photogrammetry are primarily due to the development of more accurate and efficient instruments. Today, as never before, we have an unparallel opportunity to use and exploit new tech nology that will yield more cost-effective instruments. The future of our profession and its role in the world economy depend largely on how * we pespond to this opportunity. SCOPE OF DIGITAL FUNCTIONS IN PHOTOGRAMMETRIC INSTRUMENTS With the notable exceptions of mechanical structures to carry the photographic film or plate, and of optical viewing, nearly all functions needed in a photogrammetric evaluation instrument can be replaced by electronic or electromechanical means. While such replacement may not be practical at present, we must keep in mind that it is feasible, and thst it may even extend to mechanical structures as digitizing at the data acquisition level, a la ERTS, becomes better developed. Funda mentally then, the scope of digital functions in photogrammetric instru ments can be seen to be extremely wide. The entire scope may not be realized in the near future, if ever. On the other hand many digital functions are already in widespread use in photogrammetry. Consider the use of encoders, for example. These devices perform among other things, a function equivalent to measuring the magnitude of mechanical translation or rotation. In fact, encoders

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