A novel ROI extracting technique based on wavelet transform for the detection of micro-calcifications in mammograms / 生物医学工程学杂志
Journal of Biomedical Engineering
;
(6): 360-362, 2005.
Artigo
em Chinês
| WPRIM
| ID: wpr-354299
ABSTRACT
In order to preprocess mammograms for diagnosing the early cases of breast cancer and improving the computational efficiency in the computer-aided detection of micro-calcifications in mammograms, we have advanced a novel processing technique for the extraction of micro-calcification region of interest (MROI). The proposed method is based on a three-step procedure (1) the mammogram is divided into sub-images of the same size; (2) the wavelet multi-resolution method is conducted on the sub-images, and the parameters related to wavelet transform and threshold T are discussed according to rho; (3) the classification of sub-images is determined by T. It is tested with 20 mammograms and the results show that the method can achieve a true positive rate as high as 89.7% with a false positive rate as low as 2.1%.
Texto completo:
DisponíveL
Índice:
WPRIM (Pacífico Ocidental)
Assunto principal:
Patologia
/
Doenças Mamárias
/
Neoplasias da Mama
/
Calcinose
/
Diagnóstico por Imagem
/
Mamografia
/
Diagnóstico por Computador
Tipo de estudo:
Estudo diagnóstico
Limite:
Humanos
Idioma:
Chinês
Revista:
Journal of Biomedical Engineering
Ano de publicação:
2005
Tipo de documento:
Artigo
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