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.
Article
in Chinese
| 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%.
Full text:
Available
Index:
WPRIM (Western Pacific)
Main subject:
Pathology
/
Breast Diseases
/
Breast Neoplasms
/
Calcinosis
/
Diagnostic Imaging
/
Mammography
/
Diagnosis, Computer-Assisted
Type of study:
Diagnostic study
Limits:
Humans
Language:
Chinese
Journal:
Journal of Biomedical Engineering
Year:
2005
Type:
Article
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