Search Results for author: Fahim Faisal Niloy

Found 10 papers, 1 papers with code

Source-Free Online Domain Adaptive Semantic Segmentation of Satellite Images under Image Degradation

no code implementations4 Jan 2024 Fahim Faisal Niloy, Kishor Kumar Bhaumik, Simon S. Woo

In this paper, we address source-free and online domain adaptation, i. e., test-time adaptation (TTA), for satellite images, with the focus on mitigating distribution shifts caused by various forms of image degradation.

Image Segmentation Online Domain Adaptation +2

MeTA: Multi-source Test Time Adaptation

no code implementations4 Jan 2024 Sk Miraj Ahmed, Fahim Faisal Niloy, Dripta S. Raychaudhuri, Samet Oymak, Amit K. Roy-Chowdhury

Test time adaptation is the process of adapting, in an unsupervised manner, a pre-trained source model to each incoming batch of the test data (i. e., without requiring a substantial portion of the test data to be available, as in traditional domain adaptation) and without access to the source data.

Test-time Adaptation

Active Learning Guided Federated Online Adaptation: Applications in Medical Image Segmentation

no code implementations8 Dec 2023 Md Shazid Islam, Sayak Nag, Arindam Dutta, Miraj Ahmed, Fahim Faisal Niloy, Amit K. Roy-Chowdhury

Motivated by these, we propose a method for medical image segmentation that adapts to each incoming data batch (online adaptation), incorporates physician feedback through active learning, and assimilates knowledge across facilities in a federated setup.

Active Learning Federated Learning +4

Effective Restoration of Source Knowledge in Continual Test Time Adaptation

no code implementations8 Nov 2023 Fahim Faisal Niloy, Sk Miraj Ahmed, Dripta S. Raychaudhuri, Samet Oymak, Amit K. Roy-Chowdhury

By restoring the knowledge from the source, it effectively corrects the negative consequences arising from the gradual deterioration of model parameters caused by ongoing shifts in the domain.

Change Detection Test-time Adaptation

HRFNet: High-Resolution Forgery Network for Localizing Satellite Image Manipulation

no code implementations20 Jul 2023 Fahim Faisal Niloy, Kishor Kumar Bhaumik, Simon S. Woo

Existing high-resolution satellite image forgery localization methods rely on patch-based or downsampling-based training.

Image Manipulation Image Segmentation +1

STLGRU: Spatio-Temporal Lightweight Graph GRU for Traffic Flow Prediction

1 code implementation8 Dec 2022 Kishor Kumar Bhaumik, Fahim Faisal Niloy, Saif Mahmud, Simon Woo

Specifically, our proposed STLGRU can effectively capture dynamic local and global spatial-temporal relations of traffic networks using memory-augmented attention and gating mechanisms in a continuously synchronized manner.

Computational Efficiency Traffic Prediction

CFL-Net: Image Forgery Localization Using Contrastive Learning

no code implementations4 Oct 2022 Fahim Faisal Niloy, Kishor Kumar Bhaumik, Simon S. Woo

A key assumption in underlying forged region localization is that there remains a difference of feature distribution between untampered and manipulated regions in each forged image sample, irrespective of the forgery type.

Contrastive Learning Image Manipulation

Deep Dive into Semi-Supervised ELBO for Improving Classification Performance

no code implementations29 Aug 2021 Fahim Faisal Niloy, M. Ashraful Amin, AKM Mahbubur Rahman, Amin Ahsan Ali

Experiments on a diverse datasets verify that our method can be used to improve the classification performance of existing VAE based semi-supervised models.

Classification Density Estimation +1

A Novel Disaster Image Dataset and Characteristics Analysis using Attention Model

no code implementations2 Jul 2021 Fahim Faisal Niloy, Arif, Abu Bakar Siddik Nayem, Anis Sarker, Ovi Paul, M. Ashraful Amin, Amin Ahsan Ali, Moinul Islam Zaber, AKM Mahbubur Rahman

In this research, we have carefully accumulated a relatively challenging dataset that contains images collected from various sources for three different disasters: fire, water and land.

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