Applications of Computational Modeling in Biomedical Image and Signal Processing—2nd Edition

A special issue of Bioengineering (ISSN 2306-5354). This special issue belongs to the section "Biosignal Processing".

Deadline for manuscript submissions: 30 September 2025 | Viewed by 2209

Special Issue Editors


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Guest Editor
Department of Radiation Oncology, Emory University School of Medicine, Emory University, Atlanta, GA 30322, USA
Interests: medical imaging informatics; computer-aided diagnosis
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Guest Editor
School of Electrical and Computer Engineering, University of Oklahoma, Norman, OK 73019, USA
Interests: biomedical imaging; computer-aided diagnosis; electrical impedance spectroscopy; computerized cancer biomarkers and statistical prediction models
Special Issues, Collections and Topics in MDPI journals

Special Issue Information

Dear Colleagues,

With significant efforts in research and development in recent years, many advanced medical imaging modalities and biosignal testing methods have emerged and been used in translational medical research projects and/or clinical practice. However, due to the heterogeneity and/or random noise of the acquired images and detected biosignals, methods of identifying and extracting quantitative, robust, and clinically relevant image or biosignal markers remain a major challenge. Thus, further research efforts are needed to develop and test new computational models that can more effectively process biomedical images and/or biosignals, aiming to compute robust and non-redundant features, and then to develop new novel image or biosignal markers or predictive models that can assist clinicians in diagnosing diseases and/or predicting disease prognosis more accurately.

For this purpose, this Special Issue, entitled “Applications of Computational Modeling in Biomedical Image and Signal Processing—2nd Edition”, will focus on publishing original research papers and comprehensive review papers related to the development and application of novel computational models that can help facilitate the discovery of new quantitative, robust, and clinically relevant image or biosignal markers for disease detection, diagnosis, and prognosis. The topics of interest for this Special Issue include, but are not limited to, the following:

  1. Image or biosignal data standardization or normalization to improve robustness of deep learning models;
  2. Novel computational models for medical image filtering, segmentation, and feature selection;
  3. Novel computational models for biosignal filtering, normalization, and reductions in feature dimensionality;
  4. New methods to train and test deep learning models using relatively small numbers of medical data/samples;
  5. New methods or models to generate and apply synthetic data to improve accuracy and robustness of deep learning models in biomedical applications;
  6. Novel fusion methods or models to combine both medical image features and biosignal markers to improve accuracy of disease detection and diagnosis;
  7. Observer preference or performance studies to test or validate the potential clinical value or utility of computational models or quantitative image or biosignal markers;
  8. The experience of applying computational model generated quantitative markers in clinical practice of disease diagnosis and treatment planning;
  9. Development and application of multimodal foundation models for biomedical applications to integrate diverse data modalities such as medical images, biosignals, and clinical text, improving accuracy, robustness, and interpretability in disease diagnosis and treatment planning.

Dr. Xuxin Chen
Prof. Dr. Bin Zheng
Guest Editors

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Keywords

  • computational modeling
  • quantitative disease markers
  • medical image processing
  • image segmentation
  • biosignal testing
  • biosignal processes
  • feature selection
  • deep learning
  • computer-aided diagnosis
  • data standardization
  • synthetic data generation

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Related Special Issue

Published Papers (2 papers)

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Research

20 pages, 3345 KiB  
Article
Real-Time Object Detector for Medical Diagnostics (RTMDet): A High-Performance Deep Learning Model for Brain Tumor Diagnosis
by Sanjar Bakhtiyorov, Sabina Umirzakova, Musabek Musaev, Akmalbek Abdusalomov and Taeg Keun Whangbo
Bioengineering 2025, 12(3), 274; https://doi.org/10.3390/bioengineering12030274 - 11 Mar 2025
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Abstract
Background: Brain tumor diagnosis requires precise and timely detection, which directly impacts treatment decisions and patient outcomes. The integration of deep learning technologies in medical diagnostics has improved the accuracy and efficiency of these processes, yet real-time processing remains a challenge due to [...] Read more.
Background: Brain tumor diagnosis requires precise and timely detection, which directly impacts treatment decisions and patient outcomes. The integration of deep learning technologies in medical diagnostics has improved the accuracy and efficiency of these processes, yet real-time processing remains a challenge due to the computational intensity of current models. This study introduces the Real-Time Object Detector for Medical Diagnostics (RTMDet), which aims to address these limitations by optimizing convolutional neural network (CNN) architectures for enhanced speed and accuracy. Methods: The RTMDet model incorporates novel depthwise convolutional blocks designed to reduce computational load while maintaining diagnostic precision. The effectiveness of the RTMDet was evaluated through extensive testing against traditional and modern CNN architectures using comprehensive medical imaging datasets, with a focus on real-time processing capabilities. Results: The RTMDet demonstrated superior performance in detecting brain tumors, achieving higher accuracy and speed compared to existing CNN models. The model’s efficiency was validated through its ability to process large datasets in real time without sacrificing the accuracy required for a reliable diagnosis. Conclusions: The RTMDet represents a significant advancement in the application of deep learning technologies to medical diagnostics. By optimizing the balance between computational efficiency and diagnostic precision, the RTMDet enhances the capabilities of medical imaging, potentially improving patient outcomes through faster and more accurate brain tumor detection. This model offers a promising solution for clinical settings where rapid and precise diagnostics are critical. Full article
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19 pages, 1675 KiB  
Article
A Method for Polyp Segmentation Through U-Net Network
by Antonella Santone, Mario Cesarelli and Francesco Mercaldo
Bioengineering 2025, 12(3), 236; https://doi.org/10.3390/bioengineering12030236 - 26 Feb 2025
Viewed by 822
Abstract
Early detection of colorectal polyps through endoscopic colonoscopy is crucial in reducing colorectal cancer mortality. While automated polyp segmentation has been explored to enhance detection accuracy and efficiency, challenges remain in achieving precise boundary delineation, particularly for small or flat polyps. In this [...] Read more.
Early detection of colorectal polyps through endoscopic colonoscopy is crucial in reducing colorectal cancer mortality. While automated polyp segmentation has been explored to enhance detection accuracy and efficiency, challenges remain in achieving precise boundary delineation, particularly for small or flat polyps. In this work, we propose a novel U-Net-based segmentation framework specifically optimized for real-world endoscopic colonoscopy data. Unlike conventional approaches, our method leverages high-resolution frames with pixel-level ground-truth annotations to achieve superior segmentation performance. The U-Net architecture, with its symmetric encoder-decoder design and skip connections, is further adapted to enhance both high-level contextual understanding and fine-grained detail preservation. Our model has been rigorously evaluated on a real-world dataset, demonstrating state-of-the-art accuracy in polyp boundary segmentation, even in challenging cases. By improving detection consistency and reducing observer variability, our approach provides a robust tool to support gastroenterologists in clinical decision-making. Beyond real-time clinical applications, this work contributes to advancing automated and standardized polyp detection, paving the way for more reliable AI-assisted endoscopic analysis. Full article
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