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Dr. S. Krishnakumar

Assistant Professor, Department of Computer Science & Engineering, Amrita School of Computing, Chennai

Qualification: Ph.D., M.Tech., B.E.
s_krishnakumar@ch.amrita.edu
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Research Interest:

Medical Image Processing, Deep Learning & Computer Vision, Retinal Disease Diagnosis, Optimization Techniques in Neural Networks, Artificial Intelligence in Healthcare 


Bio

Dr. S. Krishnakumar possesses deep technical expertise at the intersection of Computer Vision and Medical AI, with a specialized focus on designing high-performance architectures for retinal disease diagnosis. His competency spans the development of custom deep learning models, such as RetNet30 and T-VesselNet, which integrate transformer-based multi-scale fusion and graph enhancements to achieve state-of-the-art diagnostic accuracy. He is highly proficient in algorithmic optimization, notably leveraging techniques like Red Spider Optimization (RSO) and Neuroweb Optimizers to dynamically tune hyperparameters for peak model efficiency. Complementing his software expertise in Python, MATLAB, TensorFlow, and PyTorch, Dr. Krishnakumar has a strong foundation in Embedded Systems and Robotics, evidenced by his patent on pipeline inspection and underwater robots, as well as his practical application of IoT and Arduino for automated monitoring systems.

Publications

Journal Article

Year : 2026

T-VesselNet and GEMFNet: A transformer-based multi-scale fusion framework with graph enhancements for accurate and efficient retinal disease classification

Cite this Research Publication : Krishnakumar Subramaniam, Archana Naganathan, T-VesselNet and GEMFNet: A transformer-based multi-scale fusion framework with graph enhancements for accurate and efficient retinal disease classification, Biomedical Signal Processing and Control, Elsevier BV, 2026, https://doi.org/10.1016/j.bspc.2025.108598

Publisher : Elsevier BV

Year : 2024

Enhancing retinal fundus image classification through Active Gradient Deep Convolutional Neural Network and Red Spider Optimization

Cite this Research Publication : Krishnakumar Subramaniam, Archana Naganathan, Enhancing retinal fundus image classification through Active Gradient Deep Convolutional Neural Network and Red Spider Optimization, Neural Computing and Applications, Springer Science and Business Media LLC, 2024, https://doi.org/10.1007/s00521-024-09989-0

Publisher : Springer Science and Business Media LLC

Year : 2024

RetNet30: A Novel Stacked Convolution Neural Network Model for Automated Retinal Disease Diagnosis

Cite this Research Publication : Krishnakumar Subramaniam, Archana Naganathan, RetNet30: A Novel Stacked Convolution Neural Network Model for Automated Retinal Disease Diagnosis, International Journal of Imaging Systems and Technology, Wiley, 2024, https://doi.org/10.1002/ima.23187

Publisher : Wiley

Conference Proceedings

Year : 2025

Implementation of an Image Defogging Algorithm Using Wavelet Transform

Cite this Research Publication : S. Muminthaj, S. Kayalvizhi, S. Krishnakumar, M. Preethi, L. Prabhurajan, Implementation of an Image Defogging Algorithm Using Wavelet Transform, Signals and Communication Technology, Springer Nature Switzerland, 2025, https://doi.org/10.1007/978-3-031-68952-9_121

Publisher : Springer Nature Switzerland

Year : 2023

SIFT Detector Based Color Retinal Fundus Image Segmentation

Cite this Research Publication : S. Krishnakumar, SIFT detector based color retinal fundus image segmentation, AIP Conference Proceedings, AIP Publishing, 2023, https://doi.org/10.1063/5.0125245

Publisher : AIP Publishing

Year : 2021

Review on Sensor based Colour Sorting Robot for Candy Manufacturing

Cite this Research Publication : S. Krishnakumar, K. Sneha, A. Reethika, Review on Sensor based Colour Sorting Robot for Candy Manufacturing, IOP Conference Series: Materials Science and Engineering, IOP Publishing, 2021, https://doi.org/10.1088/1757-899x/1084/1/012094

Publisher : IOP Publishing

Qualifications
2021-2025 Ph.D. (Electronics and Communication Engineering)

PSG College of Technology, Coimbatore

Dissertation Title: An Integrated Framework for Retinal Diseases Diagnosis using Advanced CNN Architectures and Optimization Techniques

2017-2019 M. E (Applied Electronics) 

Government College of Technology,Coimbatore

2012-2016 B.E ( Electronics and Instrumentation Engineering)

Dr.Mahalingam College of Engineering and Technology , Coimbatore

Experience
March 2026 to Present Assistant Professor, Amrita School of Computing, Amrita Vishwa Vidyapeetham, Chennai, India
June 2023 to December 2025 Assistant Professor , Sri Ramakrishna Engineering College,Coimbatore
June 2019 – May 2023 Assistant Professor , Bannari Amman Institute of Engineering and Technology, Sathyamangalam
Awards
  • Mentor, Smart India Hackathon (SIH) 2024, Ministry of Education, Government of India (National Level) Guided the development of a non-electric device for tracking the sun’s movement to optimize solar panel alignment and improve energy efficiency. The project, titled PS-SIH1545, was recognized as a Finalist under the Department of Science and Technology.
  • Mentor, Techgium Eighth Edition, LTTS (L&T Technology Services), National Level Guided the development of a Pipeline Inspection Robot for detecting defects in water and sewage distribution pipelines. The project (TG08003009 / TG08002536) was shortlisted among the Top 36 teams in India and achieved Finalist status.
  • Mentor, 36 Hours Forest Hackathon – Human–Animal Conflict 2025
    Guided the development of an animal tracking system using seismograph data and MATLAB to monitor and mitigate human–animal conflict; recognized as a Finalist.
Skills
  • MATLAB, Python
  • Deep Learning Frameworks (TensorFlow, PyTorch)
  • Image Processing Tools
  • Embedded Systems & Arduino
  • Machine Learning Algorithms
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