How can I test the closure contour and close the open contour

Hello

Working on a segmentation of 3D CT images. Sometimes when my segmentation algorithm ( Smoothing, thresholding, 8 connected...) runs to extract the region bone, do not produces always (85 %) close contour . So "imfill (..., 'holes')" not works automatically. In fact it's possible (80 %) to take it correctly by imdilate and imerode with a big structring element but I will lose accuracy.

So my problem is :

• Test the closure contour of each slice
• Closing the open contour

Please if you have any idea let me know (websites, courses, ...)

Thank you

Answer 1

[Image Analyst]

You need a better segmentation algorithm. Look here for ideas: http://www.visionbib.com/bibliography/contentsmedical.html#Medical%20Applications,%20CAT,%20MRI,%20Ultrasound,%20Heart%20Models,%20Brain%20Models