Orange

Mohamed Yaoumi

Stéphane Ragot

A method for encoding an input point on an n-dimensional sphere by encoding n−1 spherical coordinates of said input point. The method includes sequential scalar quantization of the n−1 spherical coordinates in order to obtain at most 2candidates at the end of the sequential scalar quantization of the n−1 coordinates, and subsequently selecting the best candidate which minimizes a distance between the input point and the at most 2candidates, and determining the separate quantization indices resulting from the sequential scalar quantization of the spherical coordinates of the best candidate and sequentially encoding the separate quantization indices of the best candidate. A corresponding decoding method, an encoding device and a decoding device are also provided.

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Châtillon, France

Mohamed Yaoumi