Computer Processing of Remotely-Sensed Images , 5th Edition
Paul M. Mather & Magaly M. Kochdistance, of the spectral features of the Earth's surface and
atmosphere. These measurements are normally made by
instruments carried by satellites or aircraft, and are used to
infer the nature and characteristics of the land or sea surface,
or of the atmosphere, at the time of observation. The
successful application of remote sensing techniques to particular
problems, whether they be geographical, geological,
oceanographic or cartographic, requires knowledge and skills
drawn from several areas of science. An understanding of the
way in which remotely sensed data are acquired by a sensor
mounted onboard an aircraft or satellite needs a basic
knowledge of the physics involved, in particular environmental
physics and optics. The use of remotely sensed data, which are
inherently digital, demands a degree of mathematical and
statistical skill plus some familiarity with digital computers and
their operation. A high level of competence in the field in which
the remotely sensed data are to be used is essential if full use
of the information contained in those data is to be made. The
term ‘remote sensing specialist’ is thus, apparently, a
contradiction in terms for a remote sensing scientist must
possess a broad range of expertise across a variety of
disciplines. While it is, of course, possible to specialise in some
particular aspect of remote sensing, it is difficult to cut oneself
off from the essential multidisciplinary nature of the subject.