Segmentation and Density Estimation in Femur Jan Horacek

ISBN: 9783639302189

Published: November 1st 2010

Paperback

108 pages


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Segmentation and Density Estimation in Femur  by  Jan Horacek

Segmentation and Density Estimation in Femur by Jan Horacek
November 1st 2010 | Paperback | PDF, EPUB, FB2, DjVu, AUDIO, mp3, ZIP | 108 pages | ISBN: 9783639302189 | 5.72 Mb

We present a novel method for a femoral head segmentation and a density measurement. Our approach is based on a semi-automatical femoral head segmentation from a CT dataset based on finding an optimal path through the axial slices transformed toMoreWe present a novel method for a femoral head segmentation and a density measurement. Our approach is based on a semi-automatical femoral head segmentation from a CT dataset based on finding an optimal path through the axial slices transformed to polar coordinates.

The cost function itself is based on a combination of corticallis properties, mostly the directional behavior of the 3D gradients and their size in 2D slices, where they form typical channels. The final volume is computed using filling and morphological algorithms and its properties are further measured. The final implementation was experimentally validated on the radiology department of the Bulovka hospital and allows a radiologist to intuitively and accurately estimate the femoral head density in approximately 1 to 3 minutes.



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