searching for a .tga to 3d converter

[LTD.KUNNINGHAM]

ok..this is realy a hard one..

who knows a program or software where you can convert tga files in real 3d shaped..
so skinning the sub becomes easier..

i searched the net for over an hour.. but i cant find anything solid..
as example : the texture flatten left and the 3d modell of the flatten image on the right..
something like that

if there is.. let me know !!!