Morphological techniques for microcalcification and mass enhancement

  • Nor’aida Khairuddin
Keywords: Microcalcifications, Masses, Morphological Techniques, Dilation, Morphological Closing, Low Pass Gaussian filter

Abstract

Abstract

The recognition of microcalcifications and masses from digital mammographic images are important to aid the detection of breast cancer. In this paper, we applied morphological techniques to extract the embedded structures from the images for subsequent analysis. A mammographic phantom was created with embedded structures such as micronodules, nodules and fibrils. For the preprocessing techniques, intensity transformation of gray scale was applied to the image. The structures of the image were enhanced and segmented using dilation for a morphological operation with morphological closing. Next, low pass Gaussian filter was applied to the image to smooth and reduce noises. It was found that our method improved the detection of microcalcifications and masses with high Peak Signal To Noise Ratio(PSNR).

  Abstrak

Pengecaman mikrokalsifikasi dan gumpalan dalam imej mammografi digital adalah penting untuk membantu pengesanan kanser payudara yang pra-matang. Dalam kertas ini,  kami menggunakan teknik morfologi untuk mengeluarkan struktur yang tertanam dalam  imej untuk analisis berikutnya. Fantom mammografi diciptakan dengan struktur yang  tertanam seperti micronodul, nodul dan gentian halus. Bagi teknik pra pemprosesan,  transformasi keamatan skala kelabu telah digunakan untuk imej. Struktur imej dipertingkatkan dan disegmentasikan menggunakan kaedah dilasi untuk operasi morfologi dengan penutupan morfologi. Penuras lepas rendah Gaussian  telah digunakan untuk imej untuk melicinkan dan mengurangkan hingar selepas segmentasi. Kaedah kami memperbaiki pengesanan mikrokalsifikasi dan gumpalan dengan nilai PSNR yang tinggi.

Published
2012-12-31
How to Cite
Khairuddin, N. (2012). Morphological techniques for microcalcification and mass enhancement. JOURNAL of NUCLEAR and Related TECHNOLOGIES, 9(02), 103-109. Retrieved from https://jnrtmns.net/index.php/jnrt/article/view/112
Section
Articles