Publication

Rotation Invariance and Directional Sensitivity: Spherical Harmonics versus Radiomics Features

Michaël Unser, Julien René Fageot, John Paul Ward, Adrien Raphaël Depeursinge
2018
Conference Papers

Abstract

We define and investigate the Local Rotation Invariance (LRI) and Directional Sensitivity (DS) of radiomics features. Most of the classical features cannot combine the two properties, which are antagonist in simple designs. We propose texture operators based on spherical harmonic wavelets (SHW) invariants and show that they are both LRI and DS. An experimental comparison of SHW and popular radiomics operators for classifying 3D textures reveals the importance of combining the two properties for optimal pattern characterization.

Official source

https://infoscience.epfl.ch/entities/publication/176b2c31-5646-4005-b5b4-915378222a1e

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Rotation Invariance and Directional Sensitivity: Spherical Harmonics versus Radiomics Features

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