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Table 1 Distribution of prototypes for the different scanners

From: Consistent performance measurement of a system to detect masses in mammograms based on blind feature extraction

Distribution of prototypes for the different scanners
Scanner Pathology Learning Test
HOWTEK 960 (MGH) Malignant 345 851
43.5μ m / pixel Benign 485 648
linear calibration Normal 312 2410
HOWTEK MultiRAD 850 (WU) Malignant 107 1089
43.5μ m / pixel Benign 154 979
linear calibration Normal 417 2305
DBA M2100 (MGH) Malignant 105 1091
42μ m / pixel Benign 0 1133
logarithmic calibration Normal 1668 1054
LUMISYS 200 laser (WFU & SH) Malignant 639 557
50μ m / pixel Benign 494 639
linear calibration Normal 325 2397
  Malignant 1077 119
Overall Benign 1028 105
  Normal 2441 281
  1. Distribution of prototypes in the learning and test sets for the different scanners used, and without considering the scanner (overall results). In parentheses next to the scanner’s name is the identification of the institutions in which that make of scanner was used.
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