fix of memory issues, forgot to delete mrf object in 3D -.-
fix of memory issues, forgot to delete mrf object in 3D -.-

heartvalve/ETH-SegReg,heartvalve/ETH-SegReg,tobiasgass/ETH-SegReg,heartvalve/ETH-SegReg,tobiasgass/ETH-SegReg,tobiasgass/ETH-SegReg,tobiasgass/ETH-SegReg,heartvalve/ETH-SegReg,tobiasgass/ETH-SegReg,heartvalve/ETH-SegReg