RESULTS AND FURTHER EXPERIMENTS 
Preliminary experiments on artifical multiband images, confirm the 
expected separability of spectral classes by resequencing the order of 
presentation and applying different grey wedge settings to approximate 
sine wave presentation. 
An essential aid for operational use of the outlines procedure is a 
pen type light-sensor on the back-projection screen. The spectral, recorded 
signature can then be made visible e.g. on our oscilloscope screen. 
Due to electrical noise problems this aid is not yet operational. 
It would be interesting to test the assumption that a sine wave gives 
relatively the best flicker response to the eye. F’rom physiology it can be 
guessed that a somewhat assymmetric waveform with rapid rise and slow fall 
might be more appropriate. 
The caroussel is very suitable for change detection in temporal 
multiband series e.g. 4 dates with 2 bands, 2 colour presentation in 
flickering mode. No material was available to test this yet. 
Fig. 6 
The ITC 8-image Caroussel Projector 
The console measures: Height: 1 m; Width: 0. 75 m; Depth: 1 m; and contains: 
Number of lenses : one projection objective / = 210 mm 
" " lamps : one Xenon 150 W 
" " condensor systems: 16 small and 8 large (all double) 
" " nllrroi-s 
" " prisms 
" " motors 
" " shutters 
Magnification 
Format of transparencies 
8 small, 8 large, plus 1 small and 1 large 
1 eight facet reflecting pyramid 
24 for adjustment of the 8 images in the filmholders 
8 loudspeakers with 8 pairs of electronic counters 
2 . 9 x fixed in the current design 
60 mm x 60 mm.