Factors affecting human beings as photointerpreters
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8.1 Introduction
8.2 The Photointerpeter’s Characteristics and Background
| 8.1 Introduction | |
The ability of human beings to function either as an integrated living remote sensing system (vision+memory/experiences/photointerpretation keys and intelligent/logical correlation, analysis and processing and computations) or as analysts and interpreters of existing remotely sensed images, or imagery taken from the appropriate sensors and systems (according to the planning, relevant in each case ), depends on: |
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| a. the degree and amount of their relevant psychological
stimulation, caused by the specific imagery b. their ability, promptness and exactness in reacting to the specific images, relations, characteristics and appearances c. their ability in correlating, measuring, evaluating and estimating quantitative and qualitative visual or other elements, as well as their significance d. their capability in verifying the identity, or the possible logical alternatives of object identities, through the integrated analysis of imagery. |
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Therefore, a human being, acting as a living remote sensing system, is significantly affected by the fundamental concepts of “imagery” and “association”, unifying in a single organic system the procedures of communication and control, referred to Cybernetics theory. Imagery is defined as the integrated procedure forming intelligent images, sounds, odors, senses of feeling, texture and patterns, while using as tools the memory of already registered experiences of senses, logical reflection and the dialectic approach. Association is the conscious or unconscious linkage (and reference) of an idea, a word, a figure, a shape, a fact, a phenomenon, a motion, or generally speaking, of a change procedure to another one. According to the Greek philosopher Aristotle, the three "aspects" of association are: |
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 by similarity |
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| by opposition and |
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| by contact, adjacency or time succession. |
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imagery and the associations which the human remote sensing system can compose, are
objectively limited by natural and/or other parameters.
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| 8.2 The Photointerpeter’s Characteristics and Background | TOP |
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| A deep knowledge of the specific scientific field relevant to the
particular photointerpretation application. |
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| A basic knowledge of the principles, the instruments, the methods
and the techniques of photointerpretation. |
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| A wide encyclopaedical education, imagination, strong memory, power
of observation and general knowledge. |
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| The knowledge of both general and specific models as well as
conditions which exist in the area under investigation. |
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| Experience acquired from other applications and an ability to
compare photointerpretation results and to evaluate them by fieldwork. |
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| The ability to select not only the best possible, but also the
minimum and most convenient ground control points. |
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| The ability to participate in projects requiring multi-disciplinary
co-operation, in order to explore rather complex phenomena. |
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has to be pointed out that a scientist, whatever the knowledge and his experience could
be, he can not be considered as a “general” photointerpreter (expert in all the
scientific and technical fields), since for a scientist, any scientific field, except the
one of his specialisation, is an amateur’s field. Today, there are some – generally accepted – realistic needs for: |
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| a. The acquisition, processing and exploitation of a volume of
reliable, qualitative and quantitative information as an infrastructure for development
planning, construction engineering projects and for other scientific and technical
applications. b. The familiarisation of anyone involved in development planning activities with photointerpretation methodology, as a code of reference and communication. c. The appreciation of the possibilities provided to any scientific and technical field by the wide spectrum of information derived by photointerpretation/remote sensing techniques, especially during the analysis of a project, the inventory and mapping of the current situation, the monitoring of a phenomenon and its changes, etc. |
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National Technical University of Athens |