About Me
- Ph.D. student at the Department of Computer Science, University of Maryland (UMD), College Park, USA advised by Prof. Abhinav Shrivastava.
- Applied Scientist Intern at Amazon advised by Prof. Larry S. Davis.
- Former Research Engineer at the Agency for Science, Technology and Research (A*STAR), Singapore advised by Dr. Basura Fernando.
Publications
FlexNeRF: Photorealistic Free-viewpoint Rendering of Moving Humans from Sparse Views Vinoj Jayasundara, Amit Agrawal, Nicolas Heron, Abhinav Shrivastava, Larry S. Davis CVPR, 2023 Paper / Project Page A novel approach which jointly optimizes a canonical time and pose configuration coupled with temporal and cyclic consistency constraints providing high quality outputs as the observed views become sparser. | |
PatchGame: Learning to Signal in Referential Games Kamal Gupta, Gowthami Somepalli, Anubhav Gupta, Vinoj Jayasundara, Matthias Zwicker, Abhinav Shrivastava NeurIPS, 2021 Paper / Project Page / Presentation / Code / Arxiv Emergent communication via mid-level patches in a referential game played on a large-scale image dataset. | |
FlowCaps: Optical Flow Estimation with Capsule Networks For Action Recognition Vinoj Jayasundara, Debaditya Roy, Basura Fernando WACV, 2021 (Oral) Paper / Presentation / Arxiv CapsNet based a finer-grained, motion-specific, better-generalizable optical flow estimation with lesser ground truth data and computational complexity. | |
PointCaps: Raw point cloud processing using capsule networks with Euclidean distance routing Dishanika Denipitiyage, Vinoj Jayasundara, Ranga Rodrigo, Chamira U. S. Edussooriya Journal of Visual Communication and Image Representation (JVCI), 2021 Paper / Arxiv A novel convolutional capsule architecture with a custom routing algorithm for raw point cloud processing. | |
Device-free user authentication, activity classification and tracking using passive Wi-Fi sensing: a deep learning-based approach Vinoj Jayasundara, Hirunima Jayasekara, Tharaka Samarasinghe, Kasun T Hemachandra IEEE Sensors Journal (Sensors), 2020 Paper A novel end-to-end deep learning framework that utilizes the changes in orthogonal frequency division multiplexing (OFDM) sub-carrier amplitude information to simultaneously predict the identity, activity and the trajectory of a user and create a user profile that is of similar utility to a one made through a video camera based approach. | |
DeepCaps: Going Deeper with Capsule Networks Jathushan Rajasegaran, Vinoj Jayasundara, Sandaru Jayasekara, Hirunima Jayasekara, Suranga Seneviratne, Ranga Rodrigo CVPR, 2019 (Oral) Paper / Poster / Presentation / Code Capsule Networks are cool, but they are shallow. We can increase the depth with the aid of 3D convolutions and skip connections. | |
TextCaps: Handwritten Character Recognition with Very Small Datasets Vinoj Jayasundara, Sandaru Jayasekara, Hirunima Jayasekara, Jathushan Rajasegaran, Suranga Seneviratne, Ranga Rodrigo WACV, 2019 (Oral) Paper / Poster / Presentation / Code Capsule Networks can capture the subtle variations present in human handwriting with a very few samples, which can be used to generate new realistic data. | |
TreeCaps: Tree-Structured Capsule Networks for Program Source Code Processing Vinoj Jayasundara, Nghi Duy Quoc Bui, Lingxiao Jiang, David Lo ML for Systems Workshop, NeurIPS Workshops, 2019 Paper / Presentation / Code Proposing tree-based capsule networks for processing program code in an automated way that encodes code syntactical structures and captures code dependencies more accurately. | |
TimeCaps: Learning from Time Series Data with Capsule Networks Hirunima Jayasekara, Vinoj Jayasundara, Jathushan Rajasegaran, Sandaru Jayasekara, Suranga Seneviratne, Ranga Rodrigo Learning Meaningful Representations of Life Workshop, NeurIPS Workshops, 2019 (Oral) Paper Giving CapsNets the ability to understand 1D temporal relationships. We generate capsules along the temporal and channel dimensions creating two temporal feature detectors which learn contrasting relationships. | |
SmartEmbed: A Tool for Clone and Bug Detection in Smart Contracts through Structural Code Embedding Zhipeng Gao, Vinoj Jayasundara, Lingxiao Jiang, Xin Xia, David Lo, John Grundy IEEE International Conference on Software Maintenance and Evolution (ICSME), 2019 Paper / Code A web service tool, named SMARTEMBED, which can help Solidity developers to find repetitive contract code and clone-related bugs in smart contracts. | |
Combined Static and Motion Features for Deep-Networks Based Activity Recognition in Videos Sameera Ramasinghe, Jathushan Rajasegaran, Vinoj Jayasundara, Kanchana Ranasinghe, Ranga Rodrigo Ajith A Pasqual IEEE Transactions on Circuits and Systems for Video Technology (TCSVT), 2017 Paper Three schemas for combining static and motion features in videos: based on a variance ratio, principal components, and Cholesky decomposition. | |
Micro Actions and Deep Static Features for Activity Recognition Sameera Ramasinghe, Jathushan Rajasegaran, Vinoj Jayasundara, Kanchana Ranasinghe, Ranga Rodrigo Ajith A Pasqual IEEE Transactions on Circuits and Systems for Video Technology (TCSVT), 2017 Paper / Presentation / Poster Extracting motion features at micro level, preserving the actor identity, to later obtain a high-level motion descriptor using a probabilistic model. |