1. Center of Complex Systems and Visualization
  2. Lehre
  3. Oberseminar

In dem regelmäßig stattfindenden Oberseminar tragen Gäste aus aller Welt über Forschungsarbeiten zu Themen vor, die mit der Arbeit von CeVis und MeVis in Verbindung stehen, und Mitarbeiter von CeVis und MeVis präsentieren ihre neusten Ergebnisse.

C(M)eVis-Oberseminar am 6.10.2000

Datum: Freitag, der 6.10.2000
Zeit: 15.00 Uhr s.t.
Ort: Seminarraum R\"ouml;ntgen
Referent: Prof. Dr. Arthur Burgess (Harvard Medical School, Boston)
Lesion detection in mammograms

The purpose of this work was to measure contrast thresholds for detection of lesions as a function of their size in mammograms and in filtered noise with the same estimated average power spectrum, P(f) = K/f^3. Experiments were done using hybrid images with digital images of tumors from specimen radiographs added to digitized backgrounds. The experiments gave novel contrast/detail (CD) diagrams with threshold amplitudes that increased steadily with increasing size for lesions larger than 1 mm. This lecture will describe the statistical properties of mammographic structure, human observer experiments, model observer performance and interpretation of results.

A. Rodenhausen, 25.9.2000