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Communication Dans Un Congrès Année : 2015

Improving distinctiveness of BRISK features using depth maps

Résumé

Binary local descriptors are widely used in computer vision thanks to their compactness and robustness to many image transformations such as rotations or scale changes. However, more complex transformations , like changes in camera viewpoint, are difficult to deal with using conventional features due to the lack of geometric information about the scene. In this paper, we propose a local binary descriptor which assumes that geometric information is available as a depth map. It employs a local parametrization of the scene surface , obtained through depth information, which is used to build a BRISK-like sampling pattern intrinsic to the scene surface. Although we illustrate the proposed method using the BRISK architecture, the obtained parametrization is rather general and could be embedded into other binary descriptors. Our simulations on a set of synthetically generated scenes show that the proposed descriptor is significantly more stable and distinctive than popular BRISK descriptors under a wide range of viewpoint angle changes.
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Dates et versions

hal-01299845 , version 1 (08-04-2016)

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Maxim Karpushin, Giuseppe Valenzise, Frédéric Dufaux. Improving distinctiveness of BRISK features using depth maps. IEEE International Conference on Image Processing, Sep 2015, Québec city, Canada. ⟨10.1109/ICIP.2015.7351232⟩. ⟨hal-01299845⟩

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