Concept
Rotational invariance
Related publications (5)
State-to-state surface scattering of methane studied by bolometric infrared laser tagging detection
State-to-state molecule/surface scattering experiments prepare the incident molecules in a specific quantum state and measure the quantum state distribution of the scattered molecules. The comparison of state resolved experiments with theory can serve as s ...
EPFL2022Rotation Invariance and Directional Sensitivity: Spherical Harmonics versus Radiomics Features
Michaël Unser, Julien René Pierre Fageot, John Paul Ward, Adrien Raphaël Depeursinge
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 bas ...
SPRINGER INTERNATIONAL PUBLISHING AG2018Template-Free Wavelet-Based Detection of Local Symmetries
Michaël Unser, Zsuzsanna Püspöki
Our goal is to detect and group different kinds of local symmetries in images in a scale- and rotation-invariant way. We propose an efficient wavelet-based method to determine the order of local symmetry at each location. Our algorithm relies on circular h ...
IEEE2015Wavelet-Based Identification and Classification of Local Symmetries in Microscopy Images
Michaël Unser, Zsuzsanna Püspöki
We present a method for the identification and classification of local symmetries in biological images. We aim at obtaining a precise estimate of symmetric junctions in a scale and rotation invariant way. The proposed method is template-free, which allows ...
IEEE2014The correlated product state distribution of ketene photodissociation at 308 nm
The correlated product state distribution for ketene photodissociation (CH2CO-->CH2+CO) at 308 nm has been measured by using quantum-state-specific metastable time-of-flight (TOF) spectroscopy. This distribution is a matrix whose elements are the probabili ...
American Institute of Physics1996