Search Results for author: Pavlo Melnyk

Found 7 papers, 4 papers with code

Learning to Augment: Hallucinating Data for Domain Generalized Segmentation

no code implementations4 Jul 2023 Qiyu Sun, Pavlo Melnyk, Michael Felsberg, Yang Tang

Domain generalized semantic segmentation (DGSS) is an essential but highly challenging task, in which the model is trained only on source data and any target data is not available.

Data Augmentation Image Enhancement +1

O$n$ Learning Deep O($n$)-Equivariant Hyperspheres

no code implementations24 May 2023 Pavlo Melnyk, Michael Felsberg, Mårten Wadenbäck, Andreas Robinson, Cuong Le

In this paper, we utilize hyperspheres and regular $n$-simplexes and propose an approach to learning deep features equivariant under the transformations of $n$D reflections and rotations, encompassed by the powerful group of O$(n)$.

TetraSphere: A Neural Descriptor for O(3)-Invariant Point Cloud Analysis

1 code implementation26 Nov 2022 Pavlo Melnyk, Andreas Robinson, Michael Felsberg, Mårten Wadenbäck

In our approach, we perform TetraTransform--an equivariant embedding of the 3D input into 4D, constructed from the steerable neurons--and extract deeper O(3)-equivariant features using vector neurons.

3D Point Cloud Classification Point Cloud Classification

Fully Steerable 3D Spherical Neurons

no code implementations29 Sep 2021 Pavlo Melnyk, Michael Felsberg, Mårten Wadenbäck

Emerging from low-level vision theory, steerable filters found their counterpart in prior work on steerable convolutional neural networks equivariant to rigid transformations.

Steerable 3D Spherical Neurons

1 code implementation2 Jun 2021 Pavlo Melnyk, Michael Felsberg, Mårten Wadenbäck

In our work, we propose a steerable feed-forward learning-based approach that consists of neurons with spherical decision surfaces and operates on point clouds.

Embed Me If You Can: A Geometric Perceptron

1 code implementation ICCV 2021 Pavlo Melnyk, Michael Felsberg, Mårten Wadenbäck

Our extension of the MLHP model, the multilayer geometric perceptron (MLGP), and its respective layer units, i. e., geometric neurons, are consistent with the 3D geometry and provide a geometric handle of the learned coefficients.

Decision Making

A High-Performance CNN Method for Offline Handwritten Chinese Character Recognition and Visualization

1 code implementation30 Dec 2018 Pavlo Melnyk, Zhiqiang You, Keqin Li

Recent researches introduced fast, compact and efficient convolutional neural networks (CNNs) for offline handwritten Chinese character recognition (HCCR).

Offline Handwritten Chinese Character Recognition

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