Preface 
Early during the planning stages for the Symposium of ISPRS Commission II, it 
became readily apparent that our Call for Papers was attracting excellent abstract 
submissions. With these in mind, and with the assistance of the Commission II 
WG Chairpersons, we eagerly began scheduling plenary, concurrent and poster 
presentations into a finalized Technical Program in anticipation of June 1994. In 
completing our responsibilities of hosting the Commission II Symposium, we are 
pleased to publish these Proceedings as a lasting record of the Commission II 
Symposium. 
As in the case when any large meeting and symposium is assembled, there are many 
people who work to bring everything together, and a number of these merit special 
mention. In building this Symposium, we must begin by acknowledging the 
support of the many authors who submitted papers and made presentations. 
Without their efforts we would not have had such a successful meeting, and these 
proceedings are a collection of their efforts in an unedited and original form. 
Next, we must salute the efforts of the Technical Program Committee, who had the 
task of reviewing, organizing and commenting on the presentations for publication. 
A list of the Technical Program Committee is included in the next few pages and 
should be accorded your interest. 
Our great appreciation is also extended to the ISPRS Symposium Organizing 
Committee, who more than a year ago began preparations for this Symposium. 
Their efforts are acknowledged in the entire production, ranging from advance 
publicity, registration and paper submission to site organization, activity planning 
and publishing these Proceedings. 
As a participant at the ISPRS Commission II Symposium, we hope you benefit from 
your visit through greater knowledge, friendship and experiences. We wish you a 
most pleasant stay in Ottawa. 
APP > 
ut à P A 
€ T S { / 
me, Holi? 
ui 
et Dr. Mosaad Allam Gordon Plunkett 
e President Secretary 
ISPRS Commission II ISPRS Commission II