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Iftekhar Ahmed
RA @ InteX
Working on computer vision
Sylhet, Bangladesh
12:48:46 AM
|
May 6, 2026
About:
Hello 👋 I am Iftekhar, an aspiring AI researcher working with CCDS and InteX. My research interests lie in computer vision. I am currently exploring Vision-Language Models (VLMs), Vision-Language-Action (VLA) systems, and Agentic AI. I enjoy building tools and software—mostly things I find genuinely useful, but also ideas that simply interest me. I'm always open to research collaborations and exciting software projects.
News:
Featured Publications:
TFFM: Topology-Aware Feature Fusion Module via Latent Graph Reasoning for Retinal Vessel Segmentation
I. Ahmed, S. Absar, A. A. Sami, S. Sakib, D. Biswas, S. A. M. Mostafa
P2P-CV Workshop @ WACV 2026 |WACV
TL;DR:
Standard retinal vessel segmentation models produce fragmented, disconnected vessels, limiting reliable clinical analysis. Built a topology-aware model that preserves vascular connectivity using graph-based feature fusion and topology-driven loss functions—achieving SOTA performance while reducing vessel fragmentation by ~38%.
Multi-Model Attentional Fusion Ensemble for Accurate Skin Cancer Classification
I. Ahmed, B. Bushon Routh, M. S. Rahman Kohinoor, S. Sakib, M. Mahfuzur Rahman, F. Azzedin
IEEE Access 2024 |Q1
TL;DR:
Skin cancer classification models struggle with diverse lesion types, image artifacts, and dataset imbalance, limiting diagnostic reliability. Built an attention-enhanced ensemble combining ResNet50V2, MobileNetV2, and EfficientNetV2, along with robust preprocessing for artifact removal—achieving superior precision/recall and strong performance across challenging lesion classes.
Honors and Awards:
May, 2025
NCA Cybersecurity Research & Innovation Pioneers Grant
Awarded the prestigious NCA Cybersecurity Research & Innovation Pioneers Grant by the National Cybersecurity Authority of the Kingdom of Saudi Arabia for the research proposal "Privacy-Preserving Federated Learning Platform for the Healthcare Domain".
Oct, 2024
IBM TechXchange WatsonX Hackathon — Top 100
Achieved a top 100 ranking in the IBM TechXchange Watsonx Hackathon, earning a complimentary ticket to attend the IBM TechXchange Conference in Las Vegas, NV.
Oct, 2024
NASA Space Apps Challenge 2024 — Global Nominee
Our team ORBITUS was selected as one of 947 Global Nominees from 9,900+ teams worldwide in the NASA Space Apps Challenge 2024.
Worked with:
AI/ML
PythonOpenCVPyTorchNumPyPandasTensorFlow
WebDev
ReactTypeScriptNextTailwindNodeExpressNestZodReactQuery
Misc.
PostgreSQLMySQLMongoDBPrisma
Featured Blogs:
August 5, 2025
Pixel-by-Pixel Image Creation: Understanding PixelCNN
This blog post aims to make PixelCNN easy to understand for beginners. We’ll start with an example to show the problem PixelCNN is designed to solve, then break down its core idea of using masked convolutions to model images pixel by pixel. From there, we’ll walk through its architecture step-by-step, including Type A and Type B masks, and build a simple PixelCNN from scratch using PyTorch. We’ll also discuss its strengths, limitations, and how it connects to similar ideas in other fields. By the end of this blog, you’ll have a clear understanding of what PixelCNN is, how it works, and how to implement it yourself.
July 25, 2025
The Game of Deception: Generative Adversarial Network (GANs)
The blog post explores Generative Adversarial Networks (GANs), which consist of two neural networks, the Generator and the Discriminator, competing in a dynamic process to create realistic data. Unlike Variational Autoencoders (VAEs), GANs produce sharp images by having the Generator create fake data while the Discriminator evaluates its authenticity. This adversarial interaction drives both networks to improve continuously, resulting in highly convincing outputs. The post explains the architecture and training of GANs using an analogy of a counterfeiter and a detective and discusses challenges like mode collapse and training instability. It concludes with a practical example of building a GAN using PyTorch and the Fashion-MNIST dataset, showcasing the generation of new fashion items.
July 20, 2025
Neural Compression Techniques Building Autoencoders and VAEs
This blog post aims to demystify autoencoders for beginners. We'll start with an example to illustrate the problem autoencoders solve, then dive into their fundamental architecture, and finally, build a simple autoencoder from scratch using PyTorch. We'll also explore their limitations and introduce you to the concept of Variational Autoencoders (VAEs), which address some of these challenges and build it from scratch. By the end of this blog, you'll have a solid grasp of what autoencoders are, how they work, and where they fit in, and you'll build an autoencoder along with a variational autoencoder from scratch.