2026 Nicholas Ayache: Computer Science Researcher – H-Index, Publications & Awards

Discipline name	D-Index	World Ranking	Current World Ranking	National Ranking	Current National Ranking	Publications	Citations
Computer Science	116	174	169	4	4	694	62668

Research.com Recognitions

2026 - Research.com Computer Science in France Leader Award
2025 - Research.com Computer Science in France Leader Award
2023 - Research.com Computer Science in France Leader Award
2022 - Research.com Computer Science in France Leader Award
2009 - Fellow of the Indian National Academy of Engineering (INAE)

Overview

Nicholas Ayache is affiliated with the French Institute for Research in Computer Science and Automation (INRIA) in France. Their research primarily spans the fields of Medicine and Computer Science, with 62 and 41 publications respectively. Within these main fields, subfields of study include Computer Vision and Pattern Recognition, Radiology, Nuclear Medicine and Imaging, Artificial Intelligence, Biomedical Engineering, and Pulmonary and Respiratory Medicine.

The scientist's work covers a range of focused topics such as Medical Image Segmentation Techniques, Radiomics and Machine Learning in Medical Imaging, Dementia and Cognitive Impairment Research, Advanced Neural Network Applications, Artificial Intelligence in Healthcare and Education, Prostate Cancer Diagnosis and Treatment, and Advanced X-ray and CT Imaging.

Notable recent papers authored or co-authored by Nicholas Ayache include:

How can we combat multicenter variability in MR radiomics? Validation of a correction procedure (2020, European Radiology)
Deep reinforcement learning in medical imaging: A literature review (2021, HAL - Le Centre pour la Communication Scientifique Directe)
Applications of artificial intelligence in cardiovascular imaging (2021, Nature Reviews Cardiology)
Challenge of prostate MRI segmentation on T2-weighted images: inter-observer variability and impact of prostate morphology (2021, Insights into Imaging)
Anatomically consistent CNN-based segmentation of organs-at-risk in cranial radiotherapy (2020, Journal of Medical Imaging)

Frequent co-authors who have collaborated with Nicholas Ayache include Hervé Delingette, Sarah Montagne, Dimitri Hamzaoui, Raphaële Renard-Penna, and Marco Lorenzi.

The scientist's works are often published in venues such as arXiv (Cornell University), European Radiology, Journal of Medical Imaging, Alzheimer's & Dementia, and HAL (Le Centre pour la Communication Scientifique Directe).

Nicholas Ayache has contributed to book publications as well, including a book titled Digital Anatomy published by Springer Nature in 2021.

Among honors received, they were recognized as a Fellow of the Indian National Academy of Engineering (INAE) in 2009.

Best Publications

The Multimodal Brain Tumor Image Segmentation Benchmark (BRATS)

Bjoern H. Menze;Andras Jakab;Stefan Bauer;Jayashree Kalpathy-Cramer

6624
Citations
Medical image analysis: progress over two decades and the challenges ahead

J.S. Duncan;N. Ayache

4199
Citations
Diffeomorphic demons: efficient non-parametric image registration.

Tom Vercauteren;Xavier Pennec;Aymeric Perchant;Nicholas Ayache

1933
Citations
A Riemannian Framework for Tensor Computing

Xavier Pennec;Pierre Fillard;Nicholas Ayache

1863
Citations
Real-time elastic deformations of soft tissues for surgery simulation

S. Cotin;H. Delingette;N. Ayache

1093
Citations
The Correlation Ratio as a New Similarity Measure for Multimodal Image Registration

Alexis Roche;Grégoire Malandain;Xavier Pennec;Nicholas Ayache

853
Citations
HYPER: A New Approach for the Recognition and Positioning of Two-Dimensional Objects

Nicholas Ayache;Olivier D. Faugeras

810
Citations
Maintaining representations of the environment of a mobile robot

N. Ayache;O. D. Faugeras

791
Citations
Reconstructing a 3D structure from serial histological sections

Sébastien Ourselin;Alexis Roche;Gérard Subsol;Xavier Pennec

708
Citations
A hybrid elastic model for real-time cutting, deformations, and force feedback for surgery training and simulation

Stéphane Cotin;Hervé Delingette;Nicholas Ayache

683
Citations
Artificial Vision for Mobile Robots: Stereo Vision and Multisensory Perception

Nicholas Ayache;Peter T. Sander

663
Citations
Medical Image Computing and Computer-Assisted Intervention – MICCAI 2007

Nicholas Ayache;Sébastien Ourselin;Anthony Maeder

655
Citations
A hybrid elastic model allowing real-time cutting, deformations and force-feedback for surgery training and simulation

H. Delingette;S. Cotin;N. Ayache

633
Citations
Model-Based Detection of Tubular Structures in 3D Images

Karl Krissian;Grégoire Malandain;Nicholas Ayache;Régis Vaillant

612
Citations
A log-euclidean framework for statistics on diffeomorphisms

Vincent Arsigny;Olivier Commowick;Xavier Pennec;Nicholas Ayache

584
Citations
Rigid, affine and locally affine registration of free-form surfaces

Jacques Feldmar;Nicholas Ayache

560
Citations
Non-parametric diffeomorphic image registration with the demons algorithm

Tom Vercauteren;Xavier Pennec;Aymeric Perchant;Nicholas Ayache

531
Citations
Evaluation of Registration Methods on Thoracic CT: The EMPIRE10 Challenge

K. Murphy;B. van Ginneken;J. M. Reinhardt;S. Kabus

518
Citations
Symmetric Log-Domain Diffeomorphic Registration: A Demons-Based Approach

Tom Vercauteren;Xavier Pennec;Aymeric Perchant;Nicholas Ayache

475
Citations
Fully automatic anatomical, pathological, and functional segmentation from CT scans for hepatic surgery

Luc Soler;Herve Delingette;Gregoire Malandain;Johan Montagnat

448
Citations

Frequent Co-Authors

Hervé Delingette French Institute for Research in Computer Science and Automation - INRIA

Xavier Pennec French Institute for Research in Computer Science and Automation - INRIA

Maxime Sermesant Université Côte d'Azur

Grégoire Malandain French Institute for Research in Computer Science and Automation - INRIA

Tom Vercauteren King's College London

Bjoern H. Menze University of Zurich

Eric Bardinet Université Paris Cité

Ender Konukoglu ETH Zurich

Antonio Criminisi Microsoft (United States)

Sebastien Ourselin King's College London

External Links

Wikipedia of Nicholas Ayache Personal website of Nicholas Ayache Google Scholar page

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