Akbar Ali

I am a fourth-year Ph.D. student in Computer Science and Engineering at IIT Gandhinagar, advised by Prof. Shanmuganathan Raman. I lead an independent line of work on generative priors for image restoration — latent inversion in StyleGAN and diffusion models, zero-shot and training-free restoration, and 2D/3D Gaussian splatting for hyperspectral imaging. I formulate these problems, run them end to end, and take them from idea to publication.

My work sits deliberately across disciplines. I collaborate with computer scientists, earth scientists and agricultural researchers, and I have built and released datasets that serve all three. I am currently a visiting researcher at HZDR in Germany through the Helmholtz Institute Freiberg research-abroad program, where I work on geoscientific imaging in a research culture and language environment different from my own.

Alongside research I have led teaching and field operations. I have served as lead teaching assistant across four courses at IIT Gandhinagar, mentored B.Tech and M.Tech students through their own projects, and planned and run multi-day drone campaigns as a licensed UAV pilot — work that means owning the schedule, the equipment and the safety of a team in the field.

Akbar Ali

News

Research

GenR
GenR: Robust Generative Face Image Restoration in Latent Space
Akbar Ali, Indra Deep Mastan, Shanmuganathan Raman.

A degradation-agnostic face restoration method that optimises directly in the latent space of a pretrained generator, so one model handles denoising, deblurring and inpainting without retraining per degradation.

Deblurring
Unsupervised Image Deblurring in Latent Space using Pivotal Tuning Inversion
Akbar Ali, Indra Deep Mastan, Shanmuganathan Raman.
Under review, 2026

Pivotal tuning inversion anchors a blurred observation to a generator's latent manifold, recovering sharp detail without paired supervision or a known blur kernel.

ZS-CLIP2Clean
ZS-CLIP2Clean: Zero-Shot CLIP-Guided Training-Free Single-Image Denoising
Abhiyodaya Pandey, Akbar Ali, Indra Deep Mastan, Shanmuganathan Raman.
Under review, 2026

Denoising a single image with no training and no clean reference, using CLIP as a semantic critic to steer restoration towards a perceptually faithful result.

InscriptionOCR
InscriptionOCR: A Dataset and Method for Understanding Inscriptions
Jaidev Sanjay Khalane, Akbar Ali, V. N. Prabhakar, Shanmuganathan Raman.
Under review, 2026

A dataset and recognition pipeline for historical stone inscriptions, where weathering, low contrast and archaic glyph forms break standard scene-text OCR.

StyleGAN restoration
Investigating Robustness of Unsupervised StyleGAN Image Restoration
Akbar Ali, Indra Deep Mastan, Shanmuganathan Raman.
IEEE ICIP, 2025

A stress test of unsupervised StyleGAN restoration under degradations it was never tuned for, showing where latent-space optimisation holds up and where it silently fails.

COT-AD
COT-AD: Cotton Analysis Dataset
Akbar Ali, Pankaj Khanna, Subramanian Sankaranarayanan, Shanmuganathan Raman.
IEEE ICIP, 2025

An aerial and ground image dataset covering a full cotton growth cycle, collected over weekly drone missions at 10 m, 15 m and 115 m from July to December 2023, for crop health and pest analysis.

Parkinson's
Descriptive Predictive Model for Parkinson's Disease Analysis
Akbar Ali, Ranjit Kumar Rout, Saiyed Umer.
Springer Nature, 2023

A predictive framework for Parkinson's disease analysis pairing classification accuracy with descriptive feature analysis, so clinicians can see which measurements drive each prediction.

Education

Mar 2026 – present
Visiting Researcher, Helmholtz-Zentrum Dresden-Rossendorf
Research Lab Abroad Program, Helmholtz Institute Freiberg · Germany
Supervised by Prof. Dr. Richard Gloaguen, Head of Department Exploration · mentored by Dr. Sam T. Thiele

Selected for an international research program at HZDR, working with the exploration group on computational imaging and AI-driven scientific applications — hyperspectral analysis and 3D reconstruction for geoscience. The visit means operating inside a different institutional culture and set of research conventions from my own.

Dec 2022 – present
Ph.D., Computer Science and Engineering
IIT Gandhinagar · advised by Prof. Shanmuganathan Raman · CPI 9.14/10

Working on visual learning and generative representations, with the aim of building interpretable and efficient systems for image restoration and hyperspectral imaging.

Sep 2021 – Nov 2022
Project Associate

Worked on Volume Estimation of Complex Objects Using Hyperspectral Imaging and Stereo Vision Fusion, applying both imaging modalities to measure irregular objects for industrial automation and robotics. My first sustained work at the boundary between sensing hardware and vision algorithms.

Aug 2019 – Jul 2021
M.Tech, Computer Science and Engineering
Aliah University, Kolkata · with Prof. Saiyed Umar · CPI 9.03/10

Thesis at the intersection of machine learning and medical data analysis, building predictive models for healthcare. It proposed a descriptive predictive framework for Parkinson’s disease analysis, later published by Springer Nature in 2023.

Jun 2015 – Jul 2019
B.Tech, Computer Science and Engineering
Aliah University, Kolkata · with Prof. Zeenat Rehena · CPI 8.97/10

Built an IoT-based home automation system for remote control and monitoring of household devices, using sensor integration and wireless communication. This project is what turned my interest towards machine learning and deep learning.

Teaching and Mentoring

Jan – Apr 2025
Lead Teaching Assistant — ES 113, Data Centric Computing

Led the teaching assistant team for a cohort of 45 students, covering data structures, algorithms, data analysis in Python (Pandas, Matplotlib), SQL and introductory machine learning. Set the QA session format and coordinated grading standards across assistants with the instructor.

Aug – Nov 2024
Graduate Teaching Fellow — FP 602, Writing

Guided 35 students through classwork, assessment and progress tracking, holding individual reviews with students falling behind.

June 2024
Teaching Assistant — SC 333, Drone Data Acquisition and Processing

Ran flight training and field sessions for around 30 students on drone data acquisition and processing with RGB and multispectral imagery. Responsible for pre-flight checks, airspace discipline and student safety during live flights.

SC 333 drone session SC 333 field session
Captured during SC 333.
Dec 2022 – Apr 2024
Teaching Assistant — ES 114, Probability, Statistics and Data Visualization

Ran labs and tutorials for 50+ students across three semesters using the Python data science stack, and supported the Probability and Randomization course.

Ongoing
Student mentoring

Supervise B.Tech and M.Tech students on hyperspectral imaging, image editing and GAN inversion projects — scoping the problem, setting milestones, and reviewing code and results through to a working system. Two of these collaborations became co-authored submissions.

Collaborations and Field Leadership

Feb 2024 – Jan 2025
3D Geophysical Image Translation using GANs

A year-long collaboration with geoscientists, translating 3D geophysical scans into photorealistic virtual outcrop geology. Required learning enough field geology to know what a plausible result looks like, and translating that back into a generative formulation.

Jun 2023 – Jan 2024
Smart farming of cotton using aerial imagery

Designed and ran a six-month acquisition campaign with agricultural researchers, flying weekly missions at 10 m, 15 m and 115 m from July to December 2023 to track weather and pest effects across a full growth cycle. I owned the flight schedule, the multi-altitude protocol and the resulting dataset, which was released as COT-AD.

Cotton growth monitoring
Field observation during cotton growth monitoring (DSLR).
2023 – 2024
Drone and core data acquisition — Earth Science, IIT Gandhinagar

Planned and led three multi-day campaigns (May 2023, Aug 2024, Nov 2024) for aerial and core sample collection, coordinating logistics, equipment and flight operations with a team from another department. Site names withheld for confidentiality.

Field campaign Field campaign
Jul 2024
Transport evaluation — Computer Science, IIT Gandhinagar

Data collection visits to Silvassa and Aurangabad.

Jun 2024
3D Vision Summer School, IIIT Bangalore

Week-long school on deep learning for 3D vision. The Gaussian splatting sessions here shaped the direction my hyperspectral work took afterwards.

3D Vision Summer School 3D Vision Summer School
May 2024
Visvesvaraya PhD Scheme Workshop, IIT Mandi

Presented my work to an interdisciplinary audience of scholars from across engineering disciplines.

IIT Mandi workshop IIT Mandi workshop

Awards and Certifications

2023
UAV Pilot Licence
Certified for platforms up to 25 kg

DJI Mavic and Bajrang platforms. Mission planning, pre-flight checks, spectral data capture and aerial inspection.

2022
UGC-NET
Computer Applications
2021
Second rank overall, M.Tech
2019
First rank overall, B.Tech
2019
First rank, AUAT M.Tech entrance examination
2015 – 2021
National Scholarship
Awarded five times

Three during B.Tech and two during M.Tech.

2015
64th rank, AUAT B.Tech entrance examination
Also qualified BCECE, WBJEE and AIEEE