Title :
Small target detection using wavelets
Author :
Boccignone, Giuseppe ; Chianese, Angelo ; Picariello, Antonio
Author_Institution :
DIIIE, Salerno Univ., Italy
Abstract :
Presents a method for the detection of small objects embedded in a noisy background. The detection is performed on the wavelet transformed image. After a preliminary de-noising pass, the objects are separated from background by exploiting the evaluation of Renyi´s information at the different decomposition levels of the wavelet transform. We apply the proposed technique to detect microcalcifications in digital mammographic images
Keywords :
Gaussian distribution; mammography; medical image processing; noise; object detection; wavelet transforms; Renyi´s information; de-noising pass; digital mammographic images; microcalcifications detection; noisy background; small objects; small target detection; wavelet transformed image; Additive noise; Background noise; Band pass filters; Brightness; Frequency; Image edge detection; Noise reduction; Object detection; Wavelet coefficients; Wavelet transforms;
Conference_Titel :
Pattern Recognition, 1998. Proceedings. Fourteenth International Conference on
Conference_Location :
Brisbane, Qld.
Print_ISBN :
0-8186-8512-3
DOI :
10.1109/ICPR.1998.712072
