Normalized Cross-Correlation Evaluation
This page describes the methodology for using normalized cross-correlation to evaluate a region of the model.
Cross-correlation is performed on the following images:
- Model: Image of bigmap
- Truth: Image of Zmaps
Model (left), Truth (right), S/C Azimuth 0, Zenith 30deg, Sun Azimuth 90deg, Zenith 45deg:
Images are generated using the following set of dirty sumfiles at the required resolution to include:
- low and high phase
- low and moderate incidence
- full set of s/c azimuth angles (observe region from all directions).
Spacecraft |
Sun |
||
Azimuth (deg) |
Zenith (deg) |
Azimuth (deg) |
Zenith (deg) |
0 |
30 |
90 |
45 |
90 |
30 |
90 |
45 |
180 |
30 |
90 |
45 |
270 |
30 |
90 |
45 |
0 |
30 |
270 |
45 |
90 |
30 |
270 |
45 |
180 |
30 |
270 |
45 |
270 |
30 |
270 |
45 |
45 |
10 |
270 |
10 |
Images resolution is chosen from the following based on the state of the model:
- Resolution: 120cm, 75cm, 35cm, 18cm, 9cm, 5cm.
Where are the Dirty Sumfiles and Truth Images?
SUMFILES: ormacsrv1:/opt/local/spc/shape4/imageGen/DIRTYSUMFILES/ Truth .pgm files: ormacsrv1:/opt/local/spc/shape4/imageGen/PGMFILES/
Follow this link for details of the image file and bigmap naming conventions: Normalized Cross-Correlation Evaluation - Naming Conventions
Obtain Model Bigmap
bigmap .in files: /opt/local/spc/shape4/support4
/Volumes/Data1/spc-test/
/Volumes/Data1/spc-test/F6-evaluation
Populate Evaluation Directory
Generate Model Images