Full text: Proceedings of the Symposium on Progress in Data Processing and Analysis

57 
THE DIRIGO SYSTEM 
Dirigo Design 
The first assignment for the students was to decide on the essential components of an 
image processing system. Based on their remote sensing experience, they were to 
describe the software components for a digital image processing system designed to 
process remotely sensed data. These components should be structured into (a) 
absolutely essential; (b) necessary; (c) useful; and (d) "nice to have". The answers were 
discussed in class and modified based on these discussions (Table 1). 
Table 1: Components of an Image Processing System in Remote Sensing 
Absolutely Essential 
VO 
Display (CRT) 
Image File Management 
Interface 
Necessary 
Geometric Correction 
* Registration 
* Rectification 
* Resampling 
Enhancement 
* Point Operations (LUT) 
* Filtering (Spatial) 
Classification 
* Density Slicing 
* Supervised 
* Unsupervised 
Useful 
Transforms 
* Fast Fourier Transform 
* Principle Component Transform 
* Intensity-Hue-Saturation Transform 
Algebra 
* Linear Combination 
* Band Ratio 
"Nice To Have" 
All The Rest 
Teams were assigned to work on the components that were rated as essential and 
necessary (Figure 1). One of the most important design considerations was that all 
application software was to be accessible through a common user interface that should 
strictly adhere to Apple's Macintosh interface guideline. The interface should provide 
state-of-the-art interaction based on pull-down menus and use of the mouse wherever 
possible. 
User Interface 
Complaints about user interfaces for image processing software packages have ranged 
from needlessly cumbersome to non-intuitive to downright cryptic. In the early stage of 
image processing, it was assumed that only the experienced user w&able to work with 
image processing software, especially with packages originating from the academic
	        
Waiting...

Note to user

Dear user,

In response to current developments in the web technology used by the Goobi viewer, the software no longer supports your browser.

Please use one of the following browsers to display this page correctly.

Thank you.