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Deterministic and Deep Learning-Based Image Processing for Under-Exploited Medical Sensors and Devices

A special issue of Sensors (ISSN 1424-8220). This special issue belongs to the section "Sensing and Imaging".

Deadline for manuscript submissions: 30 September 2024 | Viewed by 2788

Special Issue Editors


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Guest Editor
Centre de Recherche en Automatique de Nancy (CRAN-ENSEM-UL), Université de Lorraine, CS 25233, Nancy, France
Interests: medical image processing; data segmentation; monomodal/multimodal image registration; 2-D/3-D image mosaicing and 3-D data reconstruction

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Guest Editor
School of Engineering and Sciences,Tecnológico de Monterrey, Guadalajara 45201, Mexico
Interests: reconfigurable computing; smart cameras; edge computing; computer vision; machine learning
Special Issues, Collections and Topics in MDPI journals
School of Computing, University of Leeds, Leeds LS2 9JT, UK
Interests: biomedical image analysis; computer vision; deep learning

Special Issue Information

Dear Colleagues,

Even though numerous medical devices have experienced great advances in terms of instrumentation (contrast quality, high data resolution, improved signal-to-noise ratio, innovation of new imaging modalities, etc.), there are acquisition and assistive systems whose potential is still under-exploited. The ability to more optimally exploit current technology using modern artificial intelligence-based methods is challenging.  

Ultrasound, dermatoscopic, and endoscopic systems are medical devices whose potential is under-exploited. For instance, the quality of endoscopic images has greatly increased in recent years, however endoscopists still have very few automated tools to facilitate the diagnosis and follow-up of lesions in the complicated scenes, such as hollow organs.  This lack of tools is also an obstacle for the exploitation of modalities (such as narrow band imaging in gastroenterology for instance) which, compared to white light, can enable an earlier detection of lesions.

Medical image processing methods nowadays tend to be systematically and completely based on deep learning methods. However, the latter are not always explainable and their superiority over deterministic (classical) methods is not always obvious, notably for hollow organ cartography (mapping) or lesion classification.

The aim of this Special Issue is twofold:

  • The Special Issue will focus on all types of medical image applications and devices in which AI methods (segmentation, classification, 3D reconstruction, image mosaicing, etc.) are still limited and can enable improvement in the exploitation of various other additional imaging modalities.
  • Secondly, the contributions can be based on either recent deep-learning approaches, or deterministic methods or on a combination of both. The aim here is to discuss the specific advantages and drawbacks of different solutions applicable to usability of medical data and its integration in clinically driven devices.

Prof. Dr. Christian Daul
Dr. Gilberto Ochoa-Ruiz
Dr. Sharib Ali
Guest Editors

Manuscript Submission Information

Manuscripts should be submitted online at www.mdpi.com by registering and logging in to this website. Once you are registered, click here to go to the submission form. Manuscripts can be submitted until the deadline. All submissions that pass pre-check are peer-reviewed. Accepted papers will be published continuously in the journal (as soon as accepted) and will be listed together on the special issue website. Research articles, review articles as well as short communications are invited. For planned papers, a title and short abstract (about 100 words) can be sent to the Editorial Office for announcement on this website.

Submitted manuscripts should not have been published previously, nor be under consideration for publication elsewhere (except conference proceedings papers). All manuscripts are thoroughly refereed through a single-blind peer-review process. A guide for authors and other relevant information for submission of manuscripts is available on the Instructions for Authors page. Sensors is an international peer-reviewed open access semimonthly journal published by MDPI.

Please visit the Instructions for Authors page before submitting a manuscript. The Article Processing Charge (APC) for publication in this open access journal is 2600 CHF (Swiss Francs). Submitted papers should be well formatted and use good English. Authors may use MDPI's English editing service prior to publication or during author revisions.

Published Papers (1 paper)

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Research

27 pages, 7139 KiB  
Article
FPGA Implementation of Image Registration Using Accelerated CNN
by Seda Guzel Aydin and Hasan Şakir Bilge
Sensors 2023, 23(14), 6590; https://doi.org/10.3390/s23146590 - 21 Jul 2023
Viewed by 1464
Abstract
Background: Accurate and fast image registration (IR) is critical during surgical interventions where the ultrasound (US) modality is used for image-guided intervention. Convolutional neural network (CNN)-based IR methods have resulted in applications that respond faster than traditional iterative IR methods. However, general-purpose processors [...] Read more.
Background: Accurate and fast image registration (IR) is critical during surgical interventions where the ultrasound (US) modality is used for image-guided intervention. Convolutional neural network (CNN)-based IR methods have resulted in applications that respond faster than traditional iterative IR methods. However, general-purpose processors are unable to operate at the maximum speed possible for real-time CNN algorithms. Due to its reconfigurable structure and low power consumption, the field programmable gate array (FPGA) has gained prominence for accelerating the inference phase of CNN applications. Methods: This study proposes an FPGA-based ultrasound IR CNN (FUIR-CNN) to regress three rigid registration parameters from image pairs. To speed up the estimation process, the proposed design makes use of fixed-point data and parallel operations carried out by unrolling and pipelining techniques. Experiments were performed on three US datasets in real time using the xc7z020, and the xcku5p was also used during implementation. Results: The FUIR-CNN produced results for the inference phase 139 times faster than the software-based network while retaining a negligible drop in regression performance of under 200 MHz clock frequency. Conclusions: Comprehensive experimental results demonstrate that the proposed end-to-end FPGA-based accelerated CNN achieves a negligible loss, a high speed for registration parameters, less power when compared to the CPU, and the potential for real-time medical imaging. Full article
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