Search Results for author: Gwenolé Quellec

Found 23 papers, 2 papers with code

Generalizing deep learning models for medical image classification

no code implementations18 Mar 2024 Matta Sarah, Lamard Mathieu, Zhang Philippe, Alexandre Le Guilcher, Laurent Borderie, Béatrice Cochener, Gwenolé Quellec

Numerous Deep Learning (DL) models have been developed for a large spectrum of medical image analysis applications, which promises to reshape various facets of medical practice.

Image Classification Medical Image Classification

Automated Detection of Myopic Maculopathy in MMAC 2023: Achievements in Classification, Segmentation, and Spherical Equivalent Prediction

1 code implementation8 Jan 2024 Yihao Li, Philippe Zhang, Yubo Tan, Jing Zhang, Zhihan Wang, Weili Jiang, Pierre-Henri Conze, Mathieu Lamard, Gwenolé Quellec, Mostafa El Habib Daho

As for Task 3 (prediction of spherical equivalent), we have designed a deep regression model based on the data distribution of the dataset and employed an integration strategy to enhance the model's prediction accuracy.

Classification Contrastive Learning +3

LMT: Longitudinal Mixing Training, a Framework to Predict Disease Progression from a Single Image

no code implementations16 Oct 2023 Rachid Zeghlache, Pierre-Henri Conze, Mostafa El Habib Daho, Yihao Li, Hugo Le boite, Ramin Tadayoni, Pascal Massin, Béatrice Cochener, Ikram Brahim, Gwenolé Quellec, Mathieu Lamard

Our framework, Longitudinal Mixing Training (LMT), can be considered both as a regularizer and as a pretext task that encodes the disease progression in the latent space.

Longitudinal Self-supervised Learning Using Neural Ordinary Differential Equation

no code implementations16 Oct 2023 Rachid Zeghlache, Pierre-Henri Conze, Mostafa El Habib Daho, Yihao Li, Hugo Le Boité, Ramin Tadayoni, Pascal Massin, Béatrice Cochener, Ikram Brahim, Gwenolé Quellec, Mathieu Lamard

In recent years, a novel class of algorithms has emerged with the goal of learning disease progression in a self-supervised manner, using either pairs of consecutive images or time series of images.

Self-Supervised Learning

Joint nnU-Net and Radiomics Approaches for Segmentation and Prognosis of Head and Neck Cancers with PET/CT images

no code implementations18 Nov 2022 Hui Xu, Yihao Li, Wei Zhao, Gwenolé Quellec, Lijun Lu, Mathieu Hatt

Then 3D nnU-Net architecture was adopted to automatic segmentation of primary tumor and lymph nodes synchronously. Based on predicted segmentation, ten conventional features and 346 standardized radiomics features were extracted for each patient.

Segmentation

Multimodal Information Fusion for Glaucoma and DR Classification

no code implementations2 Sep 2022 Yihao Li, Mostafa El Habib Daho, Pierre-Henri Conze, Hassan Al Hajj, Sophie Bonnin, Hugang Ren, Niranchana Manivannan, Stephanie Magazzeni, Ramin Tadayoni, Béatrice Cochener, Mathieu Lamard, Gwenolé Quellec

In recent years, multiple imaging techniques have been used in clinical practice for retinal analysis: 2D fundus photographs, 3D optical coherence tomography (OCT) and 3D OCT angiography, etc.

Classification

Detection of diabetic retinopathy using longitudinal self-supervised learning

no code implementations2 Sep 2022 Rachid Zeghlache, Pierre-Henri Conze, Mostafa El Habib Daho, Ramin Tadayoni, Pascal Massin, Béatrice Cochener, Gwenolé Quellec, Mathieu Lamard

Longitudinal imaging is able to capture both static anatomical structures and dynamic changes in disease progression towards earlier and better patient-specific pathology management.

Management Self-Supervised Learning

White-box Membership Attack Against Machine Learning Based Retinopathy Classification

no code implementations30 May 2022 Mounia Hamidouche, Reda Bellafqira, Gwenolé Quellec, Gouenou Coatrieux

From a privacy perspective in our use case where a diabetic retinopathy classification model is given to partners that have at their disposal images along with patients' identifiers, inferring the membership status of a data sample can help to state if a patient has contributed or not to the training of the model.

BIG-bench Machine Learning Inference Attack +2

Automatic detection of rare pathologies in fundus photographs using few-shot learning

no code implementations22 Jul 2019 Gwenolé Quellec, Mathieu Lamard, Pierre-Henri Conze, Pascale Massin, Béatrice Cochener

This paper presents a new few-shot learning framework that extends convolutional neural networks (CNNs), trained for frequent conditions, with an unsupervised probabilistic model for rare condition detection.

One-Shot Learning Transfer Learning

Instant automatic diagnosis of diabetic retinopathy

no code implementations12 Jun 2019 Gwenolé Quellec, Mathieu Lamard, Bruno Lay, Alexandre Le Guilcher, Ali Erginay, Béatrice Cochener, Pascale Massin

The purpose of this study is to evaluate the performance of the OphtAI system for the automatic detection of referable diabetic retinopathy (DR) and the automatic assessment of DR severity using color fundus photography.

Unsupervised learning-based long-term superpixel tracking

no code implementations25 Feb 2019 Pierre-Henri Conze, Florian Tilquin, Mathieu Lamard, Fabrice Heitz, Gwenolé Quellec

Finding correspondences between structural entities decomposing images is of high interest for computer vision applications.

Superpixels Video Object Tracking

Deep image mining for diabetic retinopathy screening

no code implementations22 Oct 2016 Gwenolé Quellec, Katia Charrière, Yassine Boudi, Béatrice Cochener, Mathieu Lamard

However, deep learning algorithms, including the popular ConvNets, are black boxes: little is known about the local patterns analyzed by ConvNets to make a decision at the image level.

Real-time analysis of cataract surgery videos using statistical models

no code implementations18 Oct 2016 Katia Charrière, Gwenolé Quellec, Mathieu Lamard, David Martiano, Guy Cazuguel, Gouenou Coatrieux, Béatrice Cochener

The automatic analysis of the surgical process, from videos recorded during surgeries, could be very useful to surgeons, both for training and for acquiring new techniques.

Retrieval Video Retrieval

Coarse-to-fine Surgical Instrument Detection for Cataract Surgery Monitoring

no code implementations19 Sep 2016 Hassan Al Hajj, Gwenolé Quellec, Mathieu Lamard, Guy Cazuguel, Béatrice Cochener

To this end, the proposed solution is divided into two main parts: one to detect the instruments at the beginning of the surgery and one to update the list of instruments every time a change is detected in the scene.

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