Xi Peng, JunZhou Huang, Qiong Hu, Shaoting Zhang, Ahmed M. Elgammal, Dimitris N. Metaxas. From circle to 3-sphere: Head pose estimation by instance parameterization. Computer Vision and Image Understanding, 136:92-102, 2015. [doi]
@article{PengHHZEM15, title = {From circle to 3-sphere: Head pose estimation by instance parameterization}, author = {Xi Peng and JunZhou Huang and Qiong Hu and Shaoting Zhang and Ahmed M. Elgammal and Dimitris N. Metaxas}, year = {2015}, doi = {10.1016/j.cviu.2015.03.008}, url = {http://dx.doi.org/10.1016/j.cviu.2015.03.008}, researchr = {https://researchr.org/publication/PengHHZEM15}, cites = {0}, citedby = {0}, journal = {Computer Vision and Image Understanding}, volume = {136}, pages = {92-102}, }