Abstract: Method and device for processing a geometry image generated from a mesh associated with a 3D scene and comprising a plurality of charts that each represents a part of the 3D scene, the method comprising computing a reference direction from mesh coordinates associated with a current pixel and mesh coordinates associated with a first pixel, the first pixel corresponding to a pixel of the border of the first chart located along a determined direction having as origin the current pixel; comparing the reference direction with a set of candidate directions being each computed from the mesh coordinates associated with the at least one current pixel and indirection mesh coordinates associated with one pixel of the neighbourhood of the first pixel, the indirection mesh coordinates corresponding to mesh coordinates of a pixel of the border a second chart corresponding to the pixel of the neighbourhood of the first pixel; and selecting a pixel of the border of the second chart according to the comparison result.

Abstract: A method and device for rendering a synthesis image comprising generating a plurality of elementary geometries (201 . . . 2i2) from an input geometry, a plurality of vertices being associated with each elementary geometry, each vertex being defined with coordinates; assigning an index value (0, 1 . . . 6, 7) to each elementary geometry of at least a part of the elementary geometries (201 . . . 2i2), the index value being estimated from the coordinates associated with at least one vertex of the elementary geometry, and rendering the synthesis image by using the indexed elementary geometries.

Abstract: Method and device for processing a geometry image generated from a mesh associated with a 3D scene and comprising a plurality of charts that each represents a part of the 3D scene, the method comprising computing a reference direction from mesh coordinates associated with a current pixel and mesh coordinates associated with a first pixel the first pixel corresponding to a pixel of the border of the first chart located along a determined direction having as origin the current pixel; comparing the reference direction with a set of candidate directions being each computed from the mesh coordinates associated with the at least one current pixel and indirection mesh coordinates associated with one pixel of the neighbourhood of the first pixel the indirection mesh coordinates corresponding to mesh coordinates of a pixel of the border a second chart corresponding to the pixel of the neighbourhood of the first pixel; and selecting a pixel of the border of the second chart according to the comparison result.

Abstract: A method and device for rendering a synthesis image comprising generating a plurality of elementary geometries (201 . . . 2i2) from an input geometry, a plurality of vertices being associated with each elementary geometry, each vertex being defined with coordinates; assigning an index value (0, 1 . . . 6, 7) to each elementary geometry of at least a part of the elementary geometries (201 . . . 2i2), the index value being estimated from the coordinates associated with at least one vertex of the elementary geometry, and rendering the synthesis image by using the indexed elementary geometries.

Abstract: To compile a source program comprising first rule(s) not supported by a target environment and to enable the first rule(s) to be executed on the target environment, the method comprises generating a directed graph representative of the source program, generating a first data structure corresponding to a flat representation of the directed graph, first data structure comprising at least a first identifier associated with the at least a first rule, and generating a second data structure comprising first instructions adapted for interpreting the first data structure by using the at least a first identifier, the instructions being coded into a code supported by the target environment.