These are projects that I worked on for which I'm not the primary author and was drafted to do a specific part (usually making realtime demos and figures).
The primary author is usually the first person in the list of collaborators (I'll bold them if there IS a primary author at this stage of the project)
Echo-Reconstruction: Audio-Augmented Scene Reconstruction with Mobile Devices (Pending Publication)
Co-investigator: Justin Wilson
Project summary: Using ML methods and sound reverberation to reconstruct translucent objects like glass based on whether or not audio reflects off of them.
My involvement: Making the video, creating reconstructions, making realtime VR video (the bottom left one is much older)
Text2Gestures: A Transformer Network for Generating Emotive Body Gestures for Virtual Agents
Co-investigator: Uttaran Bhattacharya
Project summary: Teach a deep network to create hand and body gestures from text that the avatar is meant to be saying
My involvement: Rig the avatars to work with the generated skeletons, render videos for the user study and final video
I can't yet show the video or paper since it's in review
Tracking and reconstructing full-body process like surgery or physical therapy
Co-investigators: Husam Shaik, Ritika Tejwani, Andrei State
Project summary: reconstruct a person's body prescan and then track and apply their motions over some process to that prescan
My involvement: Advise Shaik and Ritika on the reconstruction/tracking pipeline and make a bunch of tutorials (found on the left).
Realtime hand-based task performance tracking for teaching sign language and surgical knot-tying
Co-investigators: Austin Hale, Manuel Sanchez-casalongue
Project summary: track people's hand during a hand-based dexterity task and provide them realtime feedback and good UX in AR so they can train better
My involvement: Advise Austin on methods for tracking accuracy, skeletal animation, reconstructing things like the rope, user study, etc.
(look at Austin's YT channel found in the left videos for more details of the process)
Redirected Walking with AI-based Deterrents and Distractors for House Tours
Co-investigators: Andrew Fulmer, Surya Poddutoori, Andrei State
Project summary: have virtual avatars in the virtual house that are smart and appropriately move into place to stop the user from leaving the real VR bounds or distract the user to cause extra head rotation.
My involvement: advise Surya and Andrew on RDW methods, navigation, user study, etc.
Ongoing but I'm no longer involved
Eye-tracking for egocentric displays
Co-investigators: Conny Lu, Praneeth Chakravarthula, Andrei State
Project summary: It's an extension of the egocentric reconstruction project that uses eye tracking in an egocentric display like glasses with cameras.
My involvement: Making figures and videos (for now)
Opaque AR displays
Co-investigators: Kishore Rathinavel
Project summary: Making an AR display that can render completely opaque pixels, which also allows us to do shadowing between virtual and physical objects
My involvement: Realtime demo, especially having a physical object cast a shadow on virtual objects.
Customizing walk patterns and locomotion visualizer
Co-investigators: Brennora Cameron, Mary Whitton
Project summary: Getting data and making visualizers that can be used to customize the locomotion method for a particular user, especially for walking-in-place
My involvement: Making the Python visualizer, mentoring/advising, helping with data collection, making the data collection system in Unreal 4 and helping Brennora with the Unity version. This old visualizer used matplotlib, but I have a new one that uses Qt5.
Completed Research Projects
See associated papers under Publications
Optimizing placement of commodity depth cameras for known 3D dynamic scene capture (2015-2016)
Co-investigators: Rohan Chabra, Adrian Illie
Project summary: Reconstructing surgeries using an array of Kinects around the surgery room
My involvement: Making the synthetic data with Blender, making the realtime implementation and synthetic ground truth with Unity, making the video, being a nurse that gets reconstructed
Effects of virtual acoustics on dynamic auditory distance perception (2017)
Co-investigators: Atul Rungta, Roberta Klatzky, Ming Lin
Project summary: User studies studying how distance perception changes in 3D audio like in VR
My involvement: Helping with user study, making figures in Unreal 4
Supporting free walking in a large virtual environment: imperceptible redirected walking with an immersive distractor (2016-2017)
Co-investigators: Haiwei Chen
Project summary: Getting RDW to work with small tracking areas like in commercial VR using exciting distractors
My involvement: Helping with user study and making video
Glass half full: sound synthesis for fluid–structure coupling using added mass operator (2017)
Co-investigators: Justin Wilson, Auston Sterling
Project summary: Using physically-based modelling and sound synthesis to allow users to play music by hitting virtual glasses filled with various amount of liquid in specific ways
My involvement: Making the entire realtime implementation in Unreal 4 and the video
Diffraction Kernels for Interactive Sound Propagation in Dynamic Environments (2017-2018)
Co-investigators: Atul Rungta, Carl Schissler
Project summary: Efficiently simulating diffraction using diffraction kernels, which are precomputed files giving information about how propagated sound will distort based on user and sound source positions around a 3D object.
My involvement: Entire realtime implementation in Unreal 4, including 3 demos with predefined paths, a modified version of Oculus' First Contact demo, and a new implementation of Oculus' Toybox demo
Effects of virtual acoustics on target-word identification performance in multi-talker environments (2018)
Co-investigators: Atul Rungta, Carl Schissler
Project summary: Seeing if the cocktail party effect exists in VR
My involvement: Making the entire realtime implementation in Unity, made video and some figures
Towards Fully Mobile 3D Face, Body, and Environment Capture Using Only Head-worn Cameras (2018)
Co-investigators: True Price, Zhen Wei, Xinran Lu, Rohan Chabra, Adrian Ilie, Andrei State, Zhenlin Xu
Project summary: Initial implementation of an egocentric display that gets information about the user (body and face) and the environment so that they can be reconstructed and sent to a different display for telepresence
My involvement: Making the realtime implementation using Unreal 4, Maya, and Alembic. Making video
P-Reverb: Perceptual Characterization of Early and Late Reflections for Auditory Displays (2018-2019)
Co-investigators: Atul Rungta
Project summary: Optimizing reverb so that it's suitable for mobile devices
My involvement: Making the figures, video, realtime implementation in Unreal 4, and making multiple tools that compute valid sample points for a scene given certain parameters (see paper)
Audio-Material Reconstruction for Virtualized Reality Using a Probabilistic Damping Model (2019)
Co-investigators: Auston Sterling
Project summary: Using data processed from collected material data to allow for a realtime sound synthesis when users hit objects in a 3D scene
My involvement: making video, realtime implementation in Unreal 4
Generating Emotive Gaits for Virtual Agents Using Affect-Based Autoregression (2020)
Co-investigators: Uttaran Bhattacharya, Pooja Guhan, Niall L. Williams
Project summary: Teach a deep network how to create animations describing different emotions, and see if humans can recognize the generated gaits as the correct emotion
My involvement: making the realtime AR implementation, rigging characters, making the 3D parts of the video
Text2Gestures: A Transformer-Based Network for Generating Emotive Body Gestures for Virtual Agents
Co-investigators: Uttaran Bhattacharya, Abhishek Banerjee, Pooja Guhan
Project summary: Teach a deep network how to create gesture animations describing different emotions given the text that they should be gesturing for.
My involvement: rigging characters, making the 3D parts of the video, rendering the synthetic output
CodeQuest (COMP585 Serious Games) (2017)
Co-investigators: Jarrett Grimm, Justin Leonard, Diane Brauner, Diane Pozefsky
Project summary: Making an accessible iOS game that teaches visually-impaired kids programming. It was extended by a later Serious Games class with my help as LA
My involvement: rewrote pretty much all of the previous team's code and wrote most of the new Swift code for the final implementation
AR Ghost Stories (COMP523 Software Development) (2018)
Co-investigators: Gabriel Timotei, Anna Reece, Brian Moynihan
Project summary: Teaching people about the Dorothea Dix hospital by displaying a ghost that tells its story in the Hololens. The goal was that the user would go through different rooms in the real hospital and different stories would happen. This was extended with my help as LA in a later Serious Games class
My involvement: wrote most of the code and made most of the realtime implementation in Unity. Designed the entire pipeline that gets a reconstruction from ItSeez3D and eventually gets us an animated, lip-synced 3D model.