Z. Chen, Y. Li, and Y. Zhang, Recent advances in omnidirectional video coding for virtual reality: Projection and evaluation, Signal Processing, vol.146, pp.66-78, 2018.
DOI : 10.1016/j.sigpro.2018.01.004

F. D. Simone, P. Frossard, P. Wilkins, N. Birkbeck, and A. Kokaram, Geometry-driven quantization for omnidirectional image coding, 2016 Picture Coding Symposium (PCS), pp.1-5, 2016.
DOI : 10.1109/PCS.2016.7906402

G. Fracastoro, D. Thanou, and P. Frossard, Graph transform learning for image compression, 2016 Picture Coding Symposium (PCS), pp.1-5, 2016.
DOI : 10.1109/PCS.2016.7906368
URL : http://porto.polito.it/2671701/1/pcs2016.pdf

D. I. Shuman, S. K. Narang, P. Frossard, A. Ortega, and P. Vandergheynst, The emerging field of signal processing on graphs: Extending high-dimensional data analysis to networks and other irregular domains, IEEE Signal Processing Magazine, vol.30, issue.3, pp.83-98, 2013.
DOI : 10.1109/MSP.2012.2235192
URL : http://arxiv.org/pdf/1211.0053.pdf

J. Xiao, K. A. Ehinger, A. Oliva, and A. Torralba, Recognizing scene viewpoint using panoramic place representation, Computer Vision and Pattern Recognition (CVPR), 2012 IEEE Conference, pp.2695-2702, 2012.

D. Zhou and B. Scholkopf, A regularization framework for learning from graph data, ICML workshop on statistical relational learning and Its connections to other fields, 2004.

W. Hu, G. Cheung, A. Ortega, and O. C. Au, Multiresolution Graph Fourier Transform for Compression of Piecewise Smooth Images, IEEE Transactions on Image Processing, vol.24, issue.1, pp.419-433, 2015.
DOI : 10.1109/TIP.2014.2378055

H. Freeman, On the Encoding of Arbitrary Geometric Configurations, IEEE Transactions on Electronic Computers, vol.10, issue.2, pp.260-268, 1961.
DOI : 10.1109/TEC.1961.5219197

J. Shi and J. Malik, Normalized cuts and image segmentation, IEEE Transactions on Pattern Analysis and Machine Intelligence, vol.22, issue.8, pp.888-905, 2000.

I. Daribo, G. Cheung, and D. Florencio, Arithmetic edge coding for arbitrarily shaped sub-block motion prediction in depth video compression, 2012 19th IEEE International Conference on Image Processing, pp.1541-1544, 2012.
DOI : 10.1109/ICIP.2012.6467166
URL : http://research.nii.ac.jp/%7Echeung/icip2012_msr.pdf

M. Yu, H. Lakshman, and B. Girod, Content Adaptive Representations of Omnidirectional Videos for Cinematic Virtual Reality, Proceedings of the 3rd International Workshop on Immersive Media Experiences, ImmersiveME '15, pp.1-6, 2015.
DOI : 10.1109/79.733495