Problem with scanned STL data (blue lines?)

[yykim4201]

Hi, 

I am currently dealing with 3d scanned pelvic bone and extracting auricular surface(AS) for analysis.

There are some problem in one my scan but I don't have idea to deal with this problem. 

The first pic is before extracting AS and the second one is after extraction (the inner of the AS).

Usually, I saw blue lines formed on the boundary, but I have no idea why it is also in the middle of the mesh. 

I guess there was a problem while merging the scanned data on Artec software, but could I deal or solve this problem on Meshmixer? 

Any suggestions are welcomed. Thank you in advance!

[hfcandrew]

You'll have to attach the .stl for a better look, but I'd guess you have overlapping layers, meaning multiple objects. Try:

Edit>Separate Shells