F. Doyle mentioned that image geometry was not the only kind of calibration required, and emphasized the 
increasing importance of photometric calibration. 
E. Welander said he considered the field of work of Commission I well covered by the present Resolution. 
Resolution 3 was accepted. 
F. Corten presented the 4th Resolution; on navigation, positioning, altitude and attitude. 
S. Hempenius raised two questions. He felt Resolution 4 might be too general, and that we should recommend 
study of specific systems or methods. He asked if the Resolution also included remote sensing techniques; e.g. 
magnetometry. 
F. Corten explained that the need was not to study individual systems, but to study their integrated use. About 
remote sensing and magnetometry, he felt it was a question of how imagery was defined. Resolution 4 was 
accepted. 
P. Carman left the handling of his suggestion about a meeting at a different season to M. Scher. It was agreed 
that it would be passed on to the next President of Commission I. 
P.M. Fagundes mentioned the importance of ground control in remote sensing, and asked if it was adequately 
covered in Resolution 1. 
The meeting adjourned. 
Friday August 4 1972, 10:45 
The Commission President in opening the session said he had saved an interesting subject for the last - remote 
sensing. The Working Group on Remote Sensing was set up as a result of a Resolution at the XI Congress. It 
is reporting on a large-scale co-operative remote sensing project for studying the resources of Brazil. He then 
introduced P.M. Fagundes, Chairman of the Working Group, who summarized his Invited Paper (Final 
Report), and showed an audio-visual presentation describing the *Radam"' project in Amazonia. 
The Commission President called on W.A. Fischer for his Invited Paper. 
W. Fischer congratulated P. Fagundes and mentioned that the Radam project was the largest remote sensing 
activity ever known. He summarized his Invited Paper, “Status of Remote Sensing", and then called on the 
panel members for remarks. 
H. Mallon said that remote sensing can provide a timely solution in monitoring, measuring and recording 
environmental conditions where other data acquisition systems fail. 
He proposed a modification of W. Fischer's definition of remote sensing, to read ‘The observation of 
an object on state of matter from a distance to determine its properties”. 
He mentioned the introduction of pattern recognition techniques in remote sensing, and gave two 
examples: one dealing with the preparation of a storm water run-off model; and one with damage assessment 
after a natural disaster. An automatic device for detecting change would have been very helpful in the latter 
case. He mentioned that remote sensing could be an excellent tool for detection of air pollutants in metropolitan 
areas. 
J.A. Stringham emphasized the need for effective use of data acquired by sophisticated technology. He felt that 
automation should not go too far, otherwise it would reduce the involvement of the human influence necessary 
for the planning of appropriate action. We should seek an optimum mixture of technology and people. 
Interested people will quickly learn to interpret data on a problem concerning them, whereas automation alone 
will produce large amounts of data, but no useful applications. 
A.P. Colvocaresses discussed cartographic aspects of remote sensing, and suggested the following measures: 
(1) use of a single geocentric reference system, and of the Universal Transverse Mercator system of map 
projection; 
(2) development of procedures to produce photo maps in a matter of days to complement line maps - the 
precision processor from ERTS should produce instant accurate photo maps - the same principles apply 
to aircraft photography;