What Affects Learned Equivariance in Deep Image Recognition Models?

RJ Bruintjes, T Motyka… - Proceedings of the IEEE …, 2023 - openaccess.thecvf.com
Equivariance wrt geometric transformations in neural networks improves data efficiency,
parameter efficiency and robustness to out-of-domain perspective shifts. When equivariance …

Covariance properties under natural image transformations for the generalised Gaussian derivative model for visual receptive fields

T Lindeberg - Frontiers in Computational Neuroscience, 2023 - frontiersin.org
The property of covariance, also referred to as equivariance, means that an image operator
is well-behaved under image transformations, in the sense that the result of applying the …

Discrete approximations of Gaussian smoothing and Gaussian derivatives

T Lindeberg - Journal of Mathematical Imaging and Vision, 2024 - Springer
This paper develops an in-depth treatment concerning the problem of approximating the
Gaussian smoothing and the Gaussian derivative computations in scale-space theory for …

Affine Equivariant Networks Based on Differential Invariants

Y Li, Y Qiu, Y Chen, L He, Z Lin - Proceedings of the IEEE …, 2024 - openaccess.thecvf.com
Convolutional neural networks benefit from translation equivariance achieving tremendous
success. Equivariant networks further extend this property to other transformation groups …

Approximation properties relative to continuous scale space for hybrid discretizations of Gaussian derivative operators

T Lindeberg - arXiv preprint arXiv:2405.05095, 2024 - arxiv.org
This paper presents an analysis of properties of two hybrid discretization methods for
Gaussian derivatives, based on convolutions with either the normalized sampled Gaussian …

Unified theory for joint covariance properties under geometric image transformations for spatio-temporal receptive fields according to the generalized Gaussian …

T Lindeberg - 2024 - diva-portal.org
The influence of natural image transformations on receptive field responses is crucial for
modelling visual operations in computer vision and biological vision. In this regard …

HyperSpace: Hypernetworks for spacing-adaptive image segmentation

S Joutard, M Pietsch, R Prevost - International Conference on Medical …, 2024 - Springer
Medical images are often acquired in different settings, requiring harmonization to adapt to
the operating point of algorithms. Specifically, to standardize the physical spacing of imaging …

Riesz feature representation: scale equivariant scattering network for classification tasks

T Barisin, J Angulo, K Schladitz, C Redenbach - SIAM Journal on Imaging …, 2024 - SIAM
Scattering networks yield powerful and robust hierarchical image descriptors which do not
require lengthy training and which work well with very few training data. However, they rely …

Recognition of Plastic Film in Terrain-Fragmented Areas Based on Drone Visible Light Images

X Du, D Huang, L Dai, X Du - Agriculture, 2024 - mdpi.com
In order to meet the growing demand for food and achieve food security development goals,
contemporary agriculture increasingly depends on plastic coverings such as agricultural …

Scale generalisation properties of extended scale-covariant and scale-invariant Gaussian derivative networks on image datasets with spatial scaling variations

A Perzanowski, T Lindeberg - arXiv preprint arXiv:2409.11140, 2024 - arxiv.org
This paper presents an in-depth analysis of the scale generalisation properties of the scale-
covariant and scale-invariant Gaussian derivative networks, complemented with both …