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Quick-Look 
Black and white 70mm master negatives at 1:4 000 000 scale of a single 
band of data at full resolution but with minimal correction and 
enhancement are produced in response to customer orders. 
Bulk Processing 
]. Bulk processing frames the data into scenes according to a recognised 
World Reference System and enables a wide range of geometric 
corrections and radiometric corrections and enhancements to be 
performed on the raw data. The geometric corrections are derived from 
a priori knowledge. The radiometric corrections and enhancements are 
calculated from scene dependent statistics, from calibration 
information in the data stream, and from calibration of the image 
writer/film combination characteristics. 
2. The geometric corrections which can be performed by the BPS can be 
divided into two broad categories; those associated with the 
spacecraft orbit such as earth rotation and earth curvature correction 
and those due to spacecraft sensor limitations such as mirror scan 
velocity and sensor offset corrections. The radiometric corrections 
and enhancements routinely performed are contrast stretch and 
de-striping amongst others. 
3. Other options available for both CCTs and negatives are: 
(a) non-standard framing (i.e. scene centre moved in the along track 
direction to a location other than as specified by the World 
Reference System); 
(b) digital enlargements at X2 and X4 enlargement which result in 
quarter and sixteenth scenes respectively. 
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