The description of surface textures in terms of repeated colorimetric and geometric local surface variations is a crucial task for several applications, such as object interpretation or style identification. Recently, methods based on extensions to the surface meshes of the Local Binary Pattern (LBP) or the Scale-Invariant Feature Transform (SIFT) descriptors have been proposed for geometric and colorimetric pattern retrieval and classification. With respect to the previous works, we consider a novel LBPbased descriptor based on the assignment of the point neighbours into sectors of equal area and a non-uniform, multiple ring sampling. Our method is able to deal with surfaces represented as point clouds. Experiments on different benchmarks confirm the competitiveness of the method within the existing literature, in terms of accuracy and computational complexity.

CCS Concepts: Information systems --> Information retrieval; Computing methodologies --> Shape modeling; Shape analysis

Elia Moscoso Thompson, Silvia Biasotti, Julie Digne, and Raphaelle Chaine

Eurographics Workshop on 3D Object Retrieval

Paper Session 1

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