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Mathematics
Special Issues
Structural Networks for Image Application
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Structural Networks for Image Application

A special issue of Mathematics (ISSN 2227-7390). This special issue belongs to the section "E1: Mathematics and Computer Science".

Deadline for manuscript submissions: 30 April 2026 | Viewed by 3343

Special Issue Editors

Dr. Chunwei Tian

E-Mail Website
Guest Editor
School of Computer Science and Technology, Harbin Institute of Technology, Harbin 150001, China
Interests: video/image restoration and recognition; image generation; speech processing and intelligent transportation; big model technology and multimodality
Special Issues, Collections and Topics in MDPI journals
Dr. Shuai Wu

E-Mail Website
Guest Editor
School of Computer Science and Technology, Xidian University, Xi’an 710071, China
Interests: object detection; computer vision; medical image analysis and processing; pattern recognition
Dr. Jian-Fang Hu

E-Mail Website
Guest Editor
1. School of Computer Science and Engineering, Sun Yat-sen University, Guangzhou, China
2. Guangdong Province Key Laboratory of Information Security Technology, Guangzhou, China
3. Key Laboratory of Machine Intelligence and Advanced Computing, Ministry of Education, Beijing, China
Interests: computer vision; 3D human video prediction and generation; multimodal video understanding; multimodal large models; ocean large models; trajectory prediction
Special Issues, Collections and Topics in MDPI journals
Dr. Yinbo Yu

E-Mail Website
Guest Editor
College of Artificial Intelligence, Nanjing University of Aeronauticsand Astronautics, Nanjing 210023, China
Interests: artificial intelligence security; autonomous driving security; IoT security; computational visual security; software vulnerability analysis; formal methods; embedded systems; edge AI; microservices
Dr. Xin Wang

E-Mail Website
Guest Editor
School of Computer Science and Technology, Harbin Institute of Technology, Shenzhen 518055, China
Interests: deep learning; artificial intelligence; 3D vision; image super-resolution; video enhancement

Special Issue Information

Dear Colleagues,

Structural networks are a transformative approach to image application, integrating principles from graph theory, topology, computational geometry, deep learning, and more. They focus on modeling complex relationships within image data. This paradigm enables the capture of hierarchical, spatial, and semantic dependencies critical for advanced image understanding. As an important component of neural networks, structural networks enable models to parse intricate visual scenes, infer contextual relationships, and generate robust representations that transcend pixel-level analysis.

The scope of this Special Issue encompasses advances in structural network methodologies and their innovative applications in imaging domains, including, but not limited to, computer vision, pattern recognition, natural language understanding, intelligent robotics, and deep learning.

This Special Issue aims to build a collaborative community for researchers to present cutting-edge developments, propose novel frameworks, and bridge theoretical innovations with real-world implementations. We invite papers on topics including, but not limited to, architectural design, biomedical diagnostics, autonomous navigation, satellite imagery analysis, augmented reality and efficient learning for large-scale/high-resolution images. We welcome theoretically rigorous and experimentally validated contributions that advance the frontier of structural networks in imaging. Papers may span algorithms, architectures, benchmarks, and interdisciplinary case studies.

Dr. Chunwei Tian
Dr. Shuai Wu
Dr. Jian-Fang Hu
Dr. Yinbo Yu
Dr. Xin Wang
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 250 words) can be sent to the Editorial Office for assessment.

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. Mathematics 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.

Keywords

  • deep learning,
  • deep networks
  • image processing
  • optimization methods
  • statistical methods

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Published Papers (2 papers)

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Research

17 pages, 1079 KB  
Article
Prototype-Based Two-Stage Few-Shot Instance Segmentation with Flexible Novel Class Adaptation
by Qinying Zhu, Yilin Zhang, Peng Xiao, Mengxi Ying, Lei Zhu and Chengyuan Zhang
Mathematics 2025, 13(17), 2889; https://doi.org/10.3390/math13172889 - 7 Sep 2025
Viewed by 1383
Abstract
Few-shot instance segmentation (FSIS) is devised to address the intricate challenge of instance segmentation when labeled data for novel classes is scant. Nevertheless, existing methodologies encounter notable constraints in the agile expansion of novel classes and the management of memory overhead. The integration [...] Read more.
Few-shot instance segmentation (FSIS) is devised to address the intricate challenge of instance segmentation when labeled data for novel classes is scant. Nevertheless, existing methodologies encounter notable constraints in the agile expansion of novel classes and the management of memory overhead. The integration workflow for novel classes is inflexible, and given the necessity of retaining class exemplars during both training and inference stages, considerable memory consumption ensues. To surmount these challenges, this study introduces an innovative framework encompassing a two-stage “base training-novel class fine-tuning” paradigm. It acquires discriminative instance-level embedding representations. Concretely, instance embeddings are aggregated into class prototypes, and the storage of embedding vectors as opposed to images inherently mitigates the issue of memory overload. Via a Region of Interest (RoI)-level cosine similarity matching mechanism, the flexible augmentation of novel classes is realized, devoid of the requirement for supplementary training and independent of historical data. Experimental validations attest that this approach significantly outperforms state-of-the-art techniques in mainstream benchmark evaluations. More crucially, its memory-optimized attributes facilitate, for the first time, the conjoint assessment of FSIS performance across all classes within the COCO dataset. Visualized instances (incorporating colored masks and class annotations of objects across diverse scenarios) further substantiate the efficacy of the method in real-world complex contexts. Full article
(This article belongs to the Special Issue Structural Networks for Image Application)
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19 pages, 7161 KB  
Article
Dynamic Snake Convolution Neural Network for Enhanced Image Super-Resolution
by Weiqiang Xin, Ziang Wu, Qi Zhu, Tingting Bi, Bing Li and Chunwei Tian
Mathematics 2025, 13(15), 2457; https://doi.org/10.3390/math13152457 - 30 Jul 2025
Viewed by 1405
Abstract
Image super-resolution (SR) is essential for enhancing image quality in critical applications, such as medical imaging and satellite remote sensing. However, existing methods were often limited in their ability to effectively process and integrate multi-scales information from fine textures to global structures. To [...] Read more.
Image super-resolution (SR) is essential for enhancing image quality in critical applications, such as medical imaging and satellite remote sensing. However, existing methods were often limited in their ability to effectively process and integrate multi-scales information from fine textures to global structures. To address these limitations, this paper proposes DSCNN, a dynamic snake convolution neural network for enhanced image super-resolution. DSCNN optimizes feature extraction and network architecture to enhance both performance and efficiency: To improve feature extraction, the core innovation is a feature extraction and enhancement module with dynamic snake convolution that dynamically adjusts the convolution kernel’s shape and position to better fit the image’s geometric structures, significantly improving feature extraction. To optimize the network’s structure, DSCNN employs an enhanced residual network framework. This framework utilizes parallel convolutional layers and a global feature fusion mechanism to further strengthen feature extraction capability and gradient flow efficiency. Additionally, the network incorporates a SwishReLU-based activation function and a multi-scale convolutional concatenation structure. This multi-scale design effectively captures both local details and global image structure, enhancing SR reconstruction. In summary, the proposed DSCNN outperforms existing methods in both objective metrics and visual perception (e.g., our method achieved optimal PSNR and SSIM results on the Set5 ×4 dataset). Full article
(This article belongs to the Special Issue Structural Networks for Image Application)
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