d etection and c lassification of m icrocalcifications in d igitized m ammograms for c omputer- a...

DETECTION AND CLASSIFICATION OF

MICROCALCIFICATIONS IN DIGITIZED

MAMMOGRAMS FOR COMPUTER-AIDED

DIAGNOSIS OF BREAST CANCER

Werapon CHIRACHARIT

Kosin CHAMNONGTHAI

King Mongkut’s University of Technology Thonburi

Electrical and Computer Engineering

BREAST CANCER

Major Cause for Mortality of Women

its cause?

SCREENING TEST

Mammography: Breast X-Ray Imaging

ultrasound imaging

magnetic resonance imaging

thermography

MAMMOGRAM FILMS

Two Mammographic Views

Second Opinion

COMPUTER-AIDED DIAGNOSIS (CAD)

DIGITIZED MAMMOGRAM

Transparency Adapter

Scanner Computer

X-Ray Film

MICROCALCIFICATIONS

Presentation of Mineral Deposits as Specks

RELATED WORK

Digital Mammograms

Detection of Microcalcifications

Classification of Microcalcifications

Benign / Malignant

• small size & vary shape

• low contrast to background

• ambiguity from noises

PART I

DETECTION OF MICROCALCIFICATIONS

Calcification or Non-calcification?

MAMMOGRAPHIC ANALYSISin

tens

ity

position

microcalcifications

noises

background

DETECTED MICROCALCIFICATIONS

input image output image

to be continued

PART II

CLASSIFICATION OF

MICROCALCIFICATIONS

Benign or Malignant?