A very neat little tool that allows you to remesh any .obj or .ply model and output a strict-quad mesh. It’s possible to guide your remeshing by simply drawing with the mouse on the mesh where you want the quads to adapts to the orientation you desire. Quite handy (and free, go to the github pages and scroll down for windows/mac/linux packages).
http://igl.ethz.ch/projects/instant-meshes/
