, Image showing the super-ray construction

, Consistent Super-rays performance

, Example of local non-separable graph within a super-ray

, Second eigenvector of shape-varying super-pixels belonging to the same super-ray, p.47

, Example of correspondence functions F and G computed for a small shape-varying superpixel

, Illustration of the output of the optimization process for a super-ray in 4 views, p.51

, Energy compaction with or without optimization of the first spatial transform, p.52

, Image showing the old graphs before coupling and the new graphs after optimization, p.53

, Advantage of our optimization in terms of energy compaction

, Overview of proposed color coding scheme for Light Field Compression, p.55

, Rate distortion performance of our graph based Color coding schemes for "Stone Pillar Inside"

, Rate distortion performance of our graph based Color coding schemes for "Friends, p.58

, Rate distortion performance of our graph based Color coding schemes for "Fountain Vincent, p.59

, Rate distortion performance of our graph based Color coding schemes for "Flower 2, p.59

, Rate distortion performance of our graph based Color coding schemes for "Cars, p.60

, Rate distortion performance of our graph based Color coding schemes for "Rock, p.60

, Rate distortion performance of our graph based Color coding schemes for "Flower 1, p.61

, Reference Images obtained after projection of the sampling sets in all super-rays for different light fields

, Reference Images being the top-left views of each light field

, Illustration of the energy compaction for two super-rays of Flower2

, An example set of light fields used in our experiments

, An example set of top-left view disparity maps used in our experiments, p.75

, Overview of proposed coding scheme based on the non separable graph transform, p.79

, Overview of proposed coding scheme based on the separable graph transform, p.80

, 1 Omnidirectional images (in equirectangular format) used in our experiments, p.84

, non uniform) sampling on the sphere corresponding to the planar equirectangular representation

, Accuracy of the our rate proxy

, Graph partitions represented in the equi-angular domain and in the spherical domain for Pool

, Graph partitions represented in the equi-angular domain and in the spherical domain for Farm

, 95 5.7 Graph partitions represented in the equi-angular domain and in the spherical domain for Metro, Graph partitions represented in the equi-angular domain and in the spherical domain for Hotel

,

Rate-distortion comparison for Hotel ,

, order to study the impact of the model uncertainty

, Impact of the uncertainty when the graph consists of 100 nodes, is regular with deg = 8, and the weights follow uniform(red), bimodal(green) or gaussian(blue) distributions with a fixed variance 0.0671 and mean 0.45

, Impact of the uncertainty when the graph consists of 100 nodes, is regular with deg = 8, and the weights follow a uniform distribution with dist = {0.3, 0.7, 0.89} that correspond to green, blue and

, 20}(green, blue and red respectively), and the weights follow a uniform distribution centered on 0.45 with dist = 0, Impact of the uncertainty when the graph consists of 100 nodes, is regular with deg = {8, vol.12

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