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KMID : 0372919970180010009
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Journal of Biomedical Engineering Research
1997 Volume.18 No. 1 p.9 ~ p.16
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Automatic Image Matching of Portal and Simulator Images Using courier Descriptors
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Abstract
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We develop an automatic imaging matching technique for combining portal image and simulator image for improvements in localization of treatment in radiation therapy. Fusion of images from two imaging modalities is treated as follows. We archive images thxough a frame-yabber. The simulator and portal images are edge detected and enhanced with interpolated adaptive histouam equalization and combined using geometrical parameters relating the coordinates of two image data sets which are calculated using Fourier descriptors. We don’’’’t use any kind of imaging markers for patient’’’’s convenience. clinical use of this image matching technique for treatment planning will result in improvements in localization of treatment volumes and critical structures. These improvements will allow greater sparing of normal tissues and more precise delivery of energy to the desired irradiation volume.
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KEYWORD
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