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Image Processing Based on Convolution Neural Network, 3rd Edition

A Special Issue of Electronics (ISSN 2079-9292) belonging to the section "Computer Science & Engineering".

Deadline for manuscript submissions: 15 November 2026 | Viewed by 580

Editors


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Guest Editor
School of Computer Science (National Pilot Software Engineering School), Beijing University of Posts and Telecommunications, Beijing 100876, China
Interests: multimedia security; image recognition
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Special Issue Information

Dear Colleagues,

The advent of Convolutional Neural Networks (CNNs) has revolutionized the realm of image processing, leading to breakthroughs in numerous fields such as facial recognition, autonomous vehicles, and medical imaging. This can be attributed to their capacity for processing large-scale image data both efficiently and dependably. While CNN-based image processing techniques have played a significant role in feature extraction, information fusion, and the processing of static, dynamic, color, and grayscale images, it still holds immense potential for future advancements. Currently, more research is applying CNN-based image processing techniques to fields such as medical imaging, biometric identification, entertainment media, and public safety, presenting a variety of more refined and novel visual capabilities to individuals while simultaneously ensuring greater convenience.

Nevertheless, key challenges arise when CNNs are applied in image processing. These include difficulties handling complex and large-scale data, as well as the model's sensitivity to geometric transformations such as image deformation and rotation, which can lead to unstable prediction outcomes. In addition, the black-box nature of CNNs obscures the decision-making process, making it difficult to understand and interpret. Moreover, CNNs require a vast amount of annotated data for training, which can be challenging to obtain in certain fields like medical image processing, thereby limiting their application in these areas. Finally, just as federated learning has enhanced data security in computing networks, similar concerns and solutions are applicable to image processing using CNNs.

This Special Issue aims to provide a platform for researchers to present innovative and effective image processing technologies based on CNNs. This includes addressing the following specific topics:

  • Advancements in CNN-based image processing techniques;
  • Integration of CNNs with other AI techniques for image processing;
  • CNN architecture optimization for image processing;
  • Mathematical models for CNN-based image processing;
  • Security and privacy in image processing;
  • Resource allocation optimization for CNNs in image processing tasks;
  • Modeling, analysis, and measurement of computational and requirements for CNN-based image processing;
  • Interpretable image processing with CNNs.

Prof. Dr. Shaozhang Niu
Dr. Jiwei Zhang
Guest Editors

Manuscript Submission Information

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Keywords

  • artificial intelligence
  • convolutional neural networks
  • deep learning
  • image processing
  • machine learning
  • information security
  • privacy-preserving
  • architecture optimization
  • multimedia

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Published Papers (1 paper)

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Research

18 pages, 1388 KB  
Article
Enhancing Bone Marrow Lesion Segmentation Through Dual-Channel Deep Neural Networks and Test-Time Augmentation
by Shihua Qin, Hetali Tank, Qiong Wang, Kevin Wang, Jeffery Driban, Timothy McAlindon, Ming Zhang and Juan Shan
Electronics 2026, 15(17), 3950; https://doi.org/10.3390/electronics15173950 - 2 Sep 2026
Viewed by 284
Abstract
Bone marrow lesion (BML) volume is an essential biomarker for understanding knee osteoarthritis (KOA). However, automatic BML segmentation remains challenging due to the irregular shapes and indistinct boundaries of these lesions in knee magnetic resonance images (MRI). To improve BML segmentation, this study [...] Read more.
Bone marrow lesion (BML) volume is an essential biomarker for understanding knee osteoarthritis (KOA). However, automatic BML segmentation remains challenging due to the irregular shapes and indistinct boundaries of these lesions in knee magnetic resonance images (MRI). To improve BML segmentation, this study investigated two established strategies in the specific context of BML segmentation: (1) integrating bone segmentation as an additional output channel in deep neural networks to facilitate BML segmentation, and (2) incorporating test-time augmentation (TTA) to reduce uncertainty during testing. The added bone segmentation channel provides auxiliary anatomical information that may facilitate BML localization. TTA was used to improve boundary alignment and reduce false positives by generating more robust predictions. Multiple State-of-the-Art deep neural networks for segmentation were employed as the baseline models to compare performance before and after implementing the proposed strategies. A 10-fold cross-validation was conducted on a dataset of knee MR scans from 300 participants. Segmentation performance was evaluated using the Dice similarity coefficient (DSC) for overlap accuracy and the 95% Hausdorff Distance (HD95) for boundary alignment. Paired t-tests were used to assess the significance of improvements from the proposed strategies. Both strategies produced improvements in segmentation performance, although the magnitude and statistical significance of the improvements varied across architectures. The DSC improved from 63.1% to 64.8% for Residual U-Net, 64.2% to 65.8% for Swin UNETR, 61.5% to 66.5% for Attention U-Net, and 66.6% to 69.0% for UNet++. These gains were accompanied by improvements in boundary accuracy and reductions in false positives, reflected in lower HD95 values. Comparison with additional medical image segmentation models under the same evaluation framework showed that the dual-channel UNet++ with TTA achieved the highest BML DSC of 69.0%, followed by U-Mamba at 68.6% and nnU-Net at 65.2%, while U-Net + InceptionResNet-v2 achieved 57.7%. These findings support the potential value of dual-channel and TTA strategies for automated BML analysis, while further validation on independent datasets is needed to assess their broader generalizability and clinical utility. Full article
(This article belongs to the Special Issue Image Processing Based on Convolution Neural Network, 3rd Edition)
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