Image analysis – Applications – Biomedical applications
Patent
1994-03-17
1996-04-30
Mancuso, Joseph
Image analysis
Applications
Biomedical applications
382248, G06T 700
Patent
active
055132731
ABSTRACT:
For each picture element in a radiation image of the lungs, a basic Wavelet function is rotated on the radiation image, a degree of contraction of the basic Wavelet function is changed within a predetermined range, and Wavelet transformation is thereby carried out on the image signal, values of a Wavelet transformation factor being thereby calculated. For each value of the degree of contraction, a calculation is made to find a temporary representative value of the values of the Wavelet transformation factor, which have been obtained for each picture element when the degree of contraction was fixed at a predetermined value and the basic Wavelet function was thereby rotated on the radiation image. For each picture element, a representative value is determined from the temporary representative values, which have been calculated for the values of the degree of contraction. Interstitial patterns of the lungs are then rated in accordance with the representative value and the value of the degree of contraction, which was employed in the Wavelet transformation when the representative value was determined.
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Chang Jon
Fuji Photo Film Co. , Ltd.
Mancuso Joseph
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