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Remote Sensing and Photogrammetry, State of the Art Technologies

Chapter 3. Remote Sensing and

Photogrammetry, State of the Art

Technologies

In this chapter a survey on the state of the technologies used in the field of remote

sensing and photogrammetry is presented. Before introducing instruments and their

performances, it is right and proper to clearly define what, today, remote sensing and

photogrammetry are:

 “Photogrammetry is the art, science and technology of obtaining information

about physical objects and the environment through process of recording,

measuring and interpreting photographic images and patterns of recorded

radiant electromagnetic energy and other phenomena.” (Wolf and Dewitt,

2000);

 “Remote Sensing is the science of measuring or inferring the physical

properties of an object or medium, using a sensor that is at some distance

from the object or medium. Typically, the term is used to describe

measurements of electromagnetic radiation scattered or emitted from Earth‟s

atmosphere or surface using instruments on aircraft or satellites. A more

general definition would also include measurements of other planets or moons

in the solar system using interplanetary probes. The term Earth Observation is

now also in widespread use, but its use is normally restricted to describing

regional-to-global scale measurements from satellites. More recently,

however, the Group on Earth Observation has broadened this term to include

the collection, processing, modelling, and dissemination of data about the

Earth system collected through in situ, airborne and space-based observations,

using satellites, buoys, seismometers, and other devices.” (Woodhouse, 2006)

These two concepts are often merged together and can be seen as a part of a new,

modern discipline, which integrates acquisition, modelling analysis, and management of

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VIA Technologies EPIA SN-Series Specifications Page 29