Hello, I am going to work with human intestine model. A pill cam will pass through the intestine and look for any abnormalities inside the intestine. First I need to figure out some suitable modelling technic depending on the data. But the problem is the pill cam. It will move through the intestine and I need to model every cross section while the pill cam taverses through the intestine. Could anyone give me some suggestion ? I think at first I need to find out the medial axis of the intestine and then pass the pill cam along the medial axis. I need some suggestion as how to find out the medial axis for a complicated data like intestine. Could you provide any suggestion or help? Thanks in advance.