Abstract
We propose an improved search procedure for Active Shape Model (ASM) based delineation of anatomical structures in digital X-ray images. Whereas the original ASM search method [1] iteratively improves the current estimate of the location of boundary points by a limited least squares adjustment of the pose and shape parameters, our method additionally requires the subsequent changes in shape during the search to be smooth, which is achieved by using a minimum cost path search algorithm. We compare the two methods on a database of more than 400 manual segmentations of digital X-ray images of the femur, humerus and calcaneus. We evaluate the accuracy and robustness of both methods using a cross-validation procedure.
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© 1999 Springer-Verlag Berlin Heidelberg
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Behiels, G., Vandermeulen, D., Maes, F., Suetens, P., Dewaele, P. (1999). Active Shape Model-Based Segmentation of Digital X-ray Images. In: Taylor, C., Colchester, A. (eds) Medical Image Computing and Computer-Assisted Intervention – MICCAI’99. MICCAI 1999. Lecture Notes in Computer Science, vol 1679. Springer, Berlin, Heidelberg. https://doi.org/10.1007/10704282_14
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DOI: https://doi.org/10.1007/10704282_14
Publisher Name: Springer, Berlin, Heidelberg
Print ISBN: 978-3-540-66503-8
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