文档介绍：Chapter 16
Photogrammetric and remote
sensing considerations
Don L. Light and John R. Jensen
. Overview
It is possible to obtain qualitative and quantitative information about an object or area
on the Earth’s surface (or other celestial body) without being in direct physical contact
with the surface. This task can be accomplished using specialized photographic
camera systems or by the use of optical-mechanical remote sensing detectors.
Normally, the term photogrammetry is reserved for the collection and interpretation
of photographic images. The term remote sensing is used generally when we speak of
collecting imagery using optical-mechanical sensor systems often in regions beyond
the visible and near-infrared portion of the electromagnetic spectrum.
Chapters 4 and 6 reviewed the fundamental geometric equations and energy/matter
interactions that are so important when obtaining aerial photography and other types
of remote sensor data for earth resource applications. This chapter formally defines
photogrammetry and remote sensing and introduces the breadth of the fields. Subse-
quent chapters review:
† Additional principles concerning the interaction of electromagnetic energy and
earth surface materials;
† How we collect the remote sensor data;
† The digital image processing software and hardware required to interpret the
digital remote sensor data;
† Methods of analyzing the remote sensor data;
† Methods for assessing the accuracy of thematic information extracted from
remote sensor data;
† Representative applications of the use of remote sensor data, and
† A perspective on the future of remote sensing.
. Photogrammetry
Photogrammetry was initiated about 1850 in Europe when the French Colonel A.
Laussedat began to use photographs for obtaining measurements of the earth (Hallert
1960). Although the Europeans were using photogrammetric principles in the late
1800s, the word ‘photogrammetry’ did not come i