Title :
Wavelet-based enhancement of cardiac X-ray image sequences
Author :
Moshfeghi, Mehran
Author_Institution :
Philips Res., Palo Alto, CA, USA
fDate :
31 Oct-3 Nov 1996
Abstract :
An edge-based contrast enhancement method is demonstrated on cardiac X-ray images. A wavelet generated multiscale gradient representation provides the framework for applying various image gradient transformations at different scales in order to emphasize features of certain sizes. Noise magnification can be controlled by choosing the appropriate transformation at the scales where noise is more prevalent
Keywords :
angiocardiography; diagnostic radiography; image enhancement; image sequences; medical image processing; wavelet transforms; algorithm implementation; cardiac X-ray image sequences; controlled noise magnification; edge-based contrast enhancement method; features of certain sizes; image features; image gradient transformations; multiscale gradient representation; selective enhancement; wavelet-based enhancement; Displays; Image edge detection; Image enhancement; Image generation; Image reconstruction; Image sequences; Spline; Wavelet analysis; Wavelet transforms; X-ray imaging;
Conference_Titel :
Engineering in Medicine and Biology Society, 1996. Bridging Disciplines for Biomedicine. Proceedings of the 18th Annual International Conference of the IEEE
Conference_Location :
Amsterdam
Print_ISBN :
0-7803-3811-1
DOI :
10.1109/IEMBS.1996.652730
