95 citations · 128 across the 9 of their papers we have counts for
9 papers
Frame by Familiar Frame: Understanding Replication in Video Diffusion Models
Aimon Rahman, Malsha V. Perera, Vishal M. Patel
Building on the momentum of image generation diffusion models, there is an increasing interest in video-based diffusion models. However, video generation poses greater challenges d…
Analyzing Bias in Diffusion-based Face Generation Models
Malsha V. Perera, Vishal M. Patel
Diffusion models are becoming increasingly popular in synthetic data generation and image editing applications. However, these models can amplify existing biases and propagate them…
SAR Despeckling using a Denoising Diffusion Probabilistic Model
Malsha V. Perera, Nithin Gopalakrishnan Nair, Wele Gedara Chaminda Bandara +1
Speckle is a multiplicative noise which affects all coherent imaging modalities including Synthetic Aperture Radar (SAR) images. The presence of speckle degrades the image quality…
SAR Despeckling Using Overcomplete Convolutional Networks
Malsha V. Perera, Wele Gedara Chaminda Bandara, Jeya Maria Jose Valanarasu +1
Synthetic Aperture Radar (SAR) despeckling is an important problem in remote sensing as speckle degrades SAR images, affecting downstream tasks like detection and segmentation. Rec…
Transformer-based SAR Image Despeckling
Malsha V. Perera, Wele Gedara Chaminda Bandara, Jeya Maria Jose Valanarasu +1
Synthetic Aperture Radar (SAR) images are usually degraded by a multiplicative noise known as speckle which makes processing and interpretation of SAR images difficult. In this pap…
A Thickness Sensitive Vessel Extraction Framework for Retinal and Conjunctival Vascular Tortuosity Analysis
Ashwin De Silva, Malsha V. Perera, Navodini Wijethilake +3
Systemic diseases such as diabetes, hypertension, atherosclerosis are among the leading causes of annual human mortality rate. It is suggested that retinal and conjunctival vascula…
A Joint Convolutional and Spatial Quad-Directional LSTM Network for Phase Unwrapping
Malsha V. Perera, Ashwin De Silva
Phase unwrapping is a classical ill-posed problem which aims to recover the true phase from wrapped phase. In this paper, we introduce a novel Convolutional Neural Network (CNN) th…
Low-cost Active Dry-Contact Surface EMG Sensor for Bionic Arms
Asma M. Naim, Kithmin Wickramasinghe, Ashwin De Silva +3
Surface electromyography (sEMG) is a popular bio-signal used for controlling prostheses and finger gesture recognition mechanisms. Myoelectric prostheses are costly, and most comme…
Real-Time Hand Gesture Recognition Using Temporal Muscle Activation Maps of Multi-Channel sEMG Signals
Ashwin De Silva, Malsha V. Perera, Kithmin Wickramasinghe +3
Accurate and real-time hand gesture recognition is essential for controlling advanced hand prostheses. Surface Electromyography (sEMG) signals obtained from the forearm are widely…