Morphological method for extraction of microcalcifications in mammograms for breast cancer diagnosis

• Autorzy: Nieniewski M.
• Języki publikacji: EN

Abstrakty

EN

The paper presents a new morphological method for extraction of microcalcifications in mammograms for breast cancer diagnosis. The proposed method is based on the use of the morphological detector together with morphological pyramid for detection of local irregularities of brightness in a wide range of size and shapes. The binary maps obtained from the pyramid indicate locations of the condidates for microcalcifications in the mammogram. Independently, the gray level reconstruction of the original mammogram is carried out in order to obtain the axact shape of h-domes, which depic regional maxima (hills) of brithness in the image. By thresholding the image of h-domes, one obtains a binary map of h-domes. Subsequently, a bimary reconstruction is carried out, in which the binary map of h-domes is used as a mask, and the map obtained from the pyramid after some modification is used as the marker. As a result of the reconstruction, the required map of microcalcifications is extracted. A number of tests of the proposed method on various mammograms are presented.

Słowa kluczowe

EN

breast cancer diagnosis; mammograms; microcalcification detection; microcalcification extraction; morphological pyramid; morphological reconstruction

• Wydawca: Institute of Information Technology of the Warsaw University of Life Sciences – SGGW
• Czasopismo: Machine Graphics and Vision
• Rocznik: 1999
• Tom: Vol. 8, No. 3
• Strony: 427--448
• Opis fizyczny: Bibliogr. 16 poz.

Twórcy

autor

Nieniewski M.

• Electrotechnical Institute and Institute of Fundiamental Technological Research, PAS, Warsaw,