Adaptive segmentation of an x-ray CT image using vector quantization
Lihua Li, Wei Qian, Laurence P. Clarke · Proceedings of SPIE, the International Society for Optical Engineering/Proceedings of SPIE · 1997
This paper is part of a feasibility study of using an image segmentation method to automatically identify the tumor or target boundaries in each axial slice or to assist an expert physician to manually draw these boundaries.A two-stage segmentation method is proposed. In the first step, the outlying bone structure is removed from the raw CT data and the brain parenchymal area is extracted. Then a VQ-based method is applied for the segmentation of the soft tissue inside the brain area. Representative results for two sets of x-ray CT axial slice images from tow patients are presented. Problems and further modifications are discussed.