M. Domański, T. Grajek, D. Karwowski, K. Klimaszewski, O. Stankiewicz, J. Stankowski, K. Wegner, “A method for predictive coding of depth maps and a depth map encoder”, Patent office: USPTO, Status: granted, Application number: US 14/753015, Filling date: 29.06.2015, Publication number: U S2016/0381387, Publication date: 29.12.2016, Patent number: US 9848205, Date of Patent: 19.12.2017,