Rotation Invariance and Directional Sensitivity: Spherical Harmonics versus Radiomics Features

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.


Published in:
Machine Learning In Medical Imaging: 9Th International Workshop, Mlmi 2018, 11046, 107-115
Presented at:
9th International Workshop on Machine Learning in Medical Imaging (MLMI), Granada, SPAIN, Sep 16, 2018
Year:
Jan 01 2018
Publisher:
Cham, SPRINGER INTERNATIONAL PUBLISHING AG
ISSN:
0302-9743
1611-3349
ISBN:
978-3-030-00919-9
978-3-030-00918-2
Keywords:
Laboratories:




 Record created 2019-08-13, last modified 2019-08-30


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