52
depending on the circumstances.  The tracker has six modes of 
operation (Table 3-3).  Selecting the right mode will greatly improve the 
results. 
3.7.1  Phase Correlation Mode (PCORR) 
The Phase Correlation mode is the default setting on the SeaFLIR II 
Imaging System, and is a general-purpose mode effective when tracking 
stationary or moving targets.  It has many similarities to Scene Lock 
Mode, but is has better ability to maintain track in high maneuver 
situations. 
Table 3-3.  Tracker Mode Performance Summary 
Tracker Modes/ 
Criteria
 
PCORR
(default)
 
SCENE  CENT 
STA
 
CENT 
BLK
 
CENT 
WHT
 
CORR 
Moving Targets 
(Solid Color/Tone) 
No No No Best Best  No 
Moving Targets 
(Mixed Colors/Tones) 
Yes No Best  No No No 
Stationary Target  Yes  Yes  Yes Yes Yes Best 
Fixed Scene  Yes  Best  No No No Yes 
General/Mixed 
Purpose 
Best  No Yes No No Yes 
Bounded  Yes Yes Yes Best Best  Yes 
Unbounded  Yes  Yes  No No No Yes 
Notes: 
Auto-Tracker ratings are the same for IR and CCD cameras.  Tracker always 
works best under conditions with ‘high contrast’ (light and dark) between the 
target and background whether in IR or CCD camera operation. 
Tracker will not work well in ‘highly cluttered’ situations where the target is 
frequently blocked, regardless of tracker mode. 
Moving Target – Solid color/tone – constant target temperature. 
Moving Target – Mixed color/tone – varying target temperature. 
Bounded target – Within tracker window. 
Unbounded target – Beyond tracker window.
 
 
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Retrieval Date:07-Dec-10
Requested by Bower,  Richard