Search Results for author: Rozenn Dahyot

Found 18 papers, 9 papers with code

Combining geolocation and height estimation of objects from street level imagery

no code implementations14 May 2023 Matej Ulicny, Vladimir A. Krylov, Julie Connelly, Rozenn Dahyot

We propose a pipeline for combined multi-class object geolocation and height estimation from street level RGB imagery, which is considered as a single available input data modality.

Object

Model-based inexact graph matching on top of CNNs for semantic scene understanding

1 code implementation18 Jan 2023 Jérémy Chopin, Jean-Baptiste Fasquel, Harold Mouchère, Rozenn Dahyot, Isabelle Bloch

On FASSEG data, results show that our module improves accuracy of the CNN by about 6. 3% (the Hausdorff distance decreases from 22. 11 to 20. 71).

Brain Segmentation Graph Matching +3

Principal Component Classification

1 code implementation23 Oct 2022 Rozenn Dahyot

We propose to directly compute classification estimates by learning features encoded with their class scores using PCA.

Classification Component Classification

DR-VNet: Retinal Vessel Segmentation via Dense Residual UNet

1 code implementation8 Nov 2021 Ali Karaali, Rozenn Dahyot, Donal J. Sexton

Accurate retinal vessel segmentation is an important task for many computer-aided diagnosis systems.

Retinal Vessel Segmentation Segmentation

Context Aware Object Geotagging

no code implementations13 Aug 2021 Chao-Jung Liu, Matej Ulicny, Michael Manzke, Rozenn Dahyot

Localization of street objects from images has gained a lot of attention in recent years.

Object

3D point cloud segmentation using GIS

no code implementations13 Aug 2021 Chao-Jung Liu, Vladimir Krylov, Rozenn Dahyot

In this paper we propose an approach to perform semantic segmentation of 3D point cloud data by importing the geographic information from a 2D GIS layer (OpenStreetMap).

Point Cloud Segmentation Segmentation +1

Sliced $\mathcal{L}_2$ Distance for Colour Grading

no code implementations18 Feb 2021 Hana Alghamdi, Rozenn Dahyot

We propose a new method with $\mathcal{L}_2$ distance that maps one $N$-dimensional distribution to another, taking into account available information about correspondences.

Tensor Reordering for CNN Compression

1 code implementation22 Oct 2020 Matej Ulicny, Vladimir A. Krylov, Rozenn Dahyot

We show how parameter redundancy in Convolutional Neural Network (CNN) filters can be effectively reduced by pruning in spectral domain.

Iterative Nadaraya-Watson Distribution Transfer for Colour Grading

no code implementations15 Jun 2020 Hana Alghamdi, Rozenn Dahyot

We propose a new method with Nadaraya-Watson that maps one N-dimensional distribution to another taking into account available information about correspondences.

Patch based Colour Transfer using SIFT Flow

no code implementations18 May 2020 Hana Alghamdi, Rozenn Dahyot

We propose a new colour transfer method with Optimal Transport (OT) to transfer the colour of a sourceimage to match the colour of a target image of the same scene that may exhibit large motion changes betweenimages.

Motion Estimation

Harmonic Convolutional Networks based on Discrete Cosine Transform

1 code implementation18 Jan 2020 Matej Ulicny, Vladimir A. Krylov, Rozenn Dahyot

Convolutional neural networks (CNNs) learn filters in order to capture local correlation patterns in feature space.

Edge Detection Image Classification +3

Performance-Oriented Neural Architecture Search

no code implementations9 Jan 2020 Andrew Anderson, Jing Su, Rozenn Dahyot, David Gregg

Hardware-Software Co-Design is a highly successful strategy for improving performance of domain-specific computing systems.

Edge-computing Keyword Spotting +1

Entropic Regularisation of Robust Optimal Transport

no code implementations29 May 2019 Rozenn Dahyot, Hana Alghamdi, Mairead Grogan

Grogan et al [11, 12] have recently proposed a solution to colour transfer by minimising the Euclidean distance L2 between two probability density functions capturing the colour distributions of two images (palette and target).

Harmonic Networks with Limited Training Samples

1 code implementation30 Apr 2019 Matej Ulicny, Vladimir A. Krylov, Rozenn Dahyot

In the context of reverting to preset filters, we propose here a computationally efficient harmonic block that uses Discrete Cosine Transform (DCT) filters in CNNs.

Image Classification

Harmonic Networks: Integrating Spectral Information into CNNs

1 code implementation7 Dec 2018 Matej Ulicny, Vladimir A. Krylov, Rozenn Dahyot

Convolutional neural networks (CNNs) learn filters in order to capture local correlation patterns in feature space.

General Classification

Automatic Discovery and Geotagging of Objects from Street View Imagery

1 code implementation28 Aug 2017 Vladimir A. Krylov, Eamonn Kenny, Rozenn Dahyot

Many applications such as autonomous navigation, urban planning and asset monitoring, rely on the availability of accurate information about objects and their geolocations.

Autonomous Navigation Monocular Depth Estimation

Shape Registration with Directional Data

no code implementations25 Aug 2017 Mairéad Grogan, Rozenn Dahyot

We propose several cost functions for registration of shapes encoded with Euclidean and/or non-Euclidean information (unit vectors).

Position

Robust Registration of Gaussian Mixtures for Colour Transfer

1 code implementation17 May 2017 Mairéad Grogan, Rozenn Dahyot

We present a flexible approach to colour transfer inspired by techniques recently proposed for shape registration.

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