Publications
2026
FlowAvatar: Real-Time Full-Body Avatars from Sparse Egocentric Inputs on Consumer XR Devices
Chenfeng Gao, Taeyoung Yeon, Sungheon Park, Vasco Xu, Anish Prabhu, Mar Gonzalez-Franco, Karan Ahuja
To appear in ISMAR '26: Proceedings of the 2026 IEEE International Symposium on Mixed and Augmented Reality
MARIO: Motion-Augmented Real-Time Multi-Sensor Inertial Odometry
Yiquan Li*, Taeyoung Yeon*, Chenfeng Gao, Vasco Xu, Xuanyou Liu, Karan Ahuja
CVPR '26: Proceedings of the 2026 IEEE/CVF Conference on Computer Vision and Pattern Recognition (Findings)
SurfaceXR: Fusing Smartwatch IMUs and Egocentric Hand Pose for Seamless Surface Interactions
Vasco Xu, Brian Chen, Eric J Gonzalez, Andrea Colaço, Henry Hoffmann, Mar Gonzalez-Franco, Karan Ahuja
IEEE VR '26 (TVCG Special Issue)
2025
WatchHAR: Real-time On-device Human Activity Recognition System for Smartwatches
Taeyoung Yeon, Vasco Xu, Henry Hoffmann, Karan Ahuja
ICMI '25: Proceedings of the 2025 International Conference on Multimodal Interaction
EI-Lite: Electrical Impedance Sensing for Micro-gesture Recognition and Pinch Force Estimation
Junyi Zhu, Tianyu Xu, Jiayu Wang, Emily Guan, JaeYoung Moon, Stiven Morvan, D Shin, Andrea Colaço, Stefanie Mueller, Karan Ahuja, Yiyue Luo, Ishan Chatterjee
UIST '25: Proceedings of the 38th Annual ACM Symposium on User Interface Software and Technology
Programmable Reality
Ryo Suzuki, Parastoo Abtahi, Chen Zhu-Tian, Mustafa Doga Dogan, Andrea Colaço, Eric J. Gonzalez, Karan Ahuja, Mar Gonzalez-Franco
Frontiers in Virtual Reality (2025)
Online-EYE: Multimodal Implicit Eye Tracking Calibration for XR
Baosheng James Hou, Lucy Abramyan, Prasanthi Gurumurthy, Haley Adams, Ivana Tosic Rodgers, Eric J Gonzalez, Khushman Patel, Andrea Colaço, Ken Pfeuffer, Hans Gellersen, Karan Ahuja, Mar Gonzalez-Franco
CHI '25: Proceedings of the 2025 CHI Conference on Human Factors in Computing Systems
Text Entry for XR Trove (TEXT): Collecting and Analyzing Techniques for Text Input in XR
Arpit Bhatia, Moaaz Hudhud Mughrabi, Diar Abdlkarim, Massimiliano Di Luca, Mar Gonzalez-Franco, Karan Ahuja, Hasti Seifi
CHI '25: Proceedings of the 2025 CHI Conference on Human Factors in Computing Systems
EmBARDiment: an Embodied AI Agent for Productivity in XR
Riccardo Bovo, Steven Abreu, Karan Ahuja, Eric J Gonzalez, Li-Te Cheng, Mar Gonzalez-Franco
IEEE VR '25: 2025 IEEE Conference Virtual Reality and 3D User Interfaces (VR)
2024
MobilePoser: Real-Time Full-Body Pose Estimation and 3D Human Translation from IMUs in Mobile Consumer Devices
Vasco Xu, Chenfeng Gao, Henry Hoffmann, Karan Ahuja
UIST '24: Proceedings of the 37th Annual ACM Symposium on User Interface Software and Technology
Augmented Object Intelligence with XR-Objects
Mustafa Doga Dogan, Eric J. Gonzalez, Andrea Colaco, Karan Ahuja, Ruofei Du, Johnny Lee, Mar Gonzalez-Franco, David Kim
UIST '24: Proceedings of the 37th Annual ACM Symposium on User Interface Software and Technology
SXSW Innovation Awards 2025 Finalists
Geometry Fidelity for Spherical Images
Anders Christensen, Nooshin Mojab, Khushman Patel, Karan Ahuja, Zeynep Akata, Ole Winther, Mar Gonzalez Franco, Andrea Colaco
ECCV '24: European Conference on Computer Vision
EITPose: Wearable and Practical Electrical Impedance Tomography for Continuous Hand Pose Estimation
Alexander Kyu*, Hongyu Mao*, Junyi Zhu, Mayank Goel, Karan Ahuja
CHI '24: Proceedings of the CHI Conference on Human Factors in Computing Systems
2023
IMUPoser: Full-Body Pose Estimation using IMUs in Phones, Watches, and Earbuds
Vimal Mollyn, Riku Arakawa, Mayank Goel, Chris Harrison, Karan Ahuja
CHI '23: Proceedings of the 2023 CHI Conference on Human Factors in Computing Systems
Honorable Mention Award
LemurDx: Using Unconstrained Passive Sensing for an Objective Measurement of Hyperactivity in Children with no Parent Input
Riku Arakawa, Karan Ahuja, Kristie Mak, Gwendolyn Thompson, Sam Shaaban, Oliver Lindhiem, Mayank Goel
UbiComp '23: Proceedings of the ACM on Interactive, Mobile, Wearable and Ubiquitous Technologies
2022
ControllerPose: Inside-Out Body Capture with VR Controller Cameras
Karan Ahuja, Vivian Shen, Cathy Fang, Nathan Riopelle, Andy Kong, Chris Harrison
CHI '22: Proceedings of the 2022 CHI Conference on Human Factors in Computing Systems
RGBDGaze: Gaze Tracking on Smartphones with RGB and Depth Data
Riku Arakawa, Mayank Goel, Chris Harrison, Karan Ahuja
ICMI '22: Proceedings of the 2022 International Conference on Multimodal Interaction
SAMoSA: Sensing Activities with Motion and Subsampled Audio
Vimal Mollyn, Karan Ahuja, Dhruv Verma, Chris Harrison, Mayank Goel
UbiComp '22: Proceedings of the ACM on Interactive, Mobile, Wearable and Ubiquitous Technologies
TriboTouch: Micro-Patterned Surfaces for Low Latency Touchscreens
Craig Shultz, Karan Ahuja, Daewha Kim, Chris Harrison
CHI '22: Proceedings of the 2022 CHI Conference on Human Factors in Computing Systems
Honorable Mention Award2021
Classroom Digital Twins with Instrumentation-Free Gaze Tracking
Karan Ahuja*, Deval Shah*, Sujeath Pareddy, Franceska Xhakaj, Amy Ogan, Yuvraj Agarwal, Chris Harrison
CHI '21: Proceedings of the 2021 CHI Conference on Human Factors in Computing Systems
Cool Moves: User Motion Accentuation in Virtual Reality
Karan Ahuja, Eyal Ofek, Mar Gonzalez-Franco, Christian Holz, Andrew Wilson
UbiComp '21: Proceedings of the ACM on Interactive, Mobile, Wearable and Ubiquitous Technologies
EyeMU Interactions: Gaze + IMU Gestures on Mobile Devices
Andy Kong, Karan Ahuja, Mayank Goel, Chris Harrison
ICMI '21: Proceedings of the 2021 International Conference on Multimodal Interaction
Pose-on-the-Go: Approximating Partial User Pose with Smartphone Sensor Fusion and Inverse Kinematics
Karan Ahuja, Sven Mayer, Mayank Goel, Chris Harrison
CHI '21: Proceedings of the 2021 CHI Conference on Human Factors in Computing Systems
Fast Company Innovation by Design Finalist
PrivacyMic: Utilizing Inaudible Frequencies for Privacy Preserving Daily Activity Recognition
Yasha Iravantchi, Karan Ahuja, Mayank Goel, Chris Harrison, Alanson Sample
CHI '21: Proceedings of the 2021 CHI Conference on Human Factors in Computing Systems
Honorable Mention Award
TouchPose: Hand Pose Prediction, Depth Estimation, and Touch Classification from Capacitive Images
Karan Ahuja, Paul Streli, Christian Holz
UIST '21: The 34th Annual ACM Symposium on User Interface Software and Technology
Vid2Doppler: Synthesizing Doppler Radar Data from Videos for Training Privacy-Preserving Activity Recognition
Karan Ahuja, Yue Jiang, Mayank Goel, Chris Harrison
CHI '21: Proceedings of the 2021 CHI Conference on Human Factors in Computing Systems
2020
BodySLAM: Opportunistic User Digitization in Multi-User AR/VR Experiences
Karan Ahuja, Mayank Goel, Chris Harrison
SUI '20: Proceedings of the 2020 ACM Symposium on Spatial User Interaction
Direction-of-Voice (DoV) Estimation for Intuitive Speech Interaction with Smart Devices Ecosystems
Karan Ahuja, Andy Kong, Mayank Goel, Chris Harrison
UIST '20: Proceedings of the 33rd Annual ACM Symposium on User Interface Software and Technology
2019
EduSense: Practical Classroom Sensing at Scale
Karan Ahuja*, Dohyun Kim*, Franceska Xhakaj, Virag Varga, Anne Xie, Stanley Zhang, Jay Eric Townsend, Chris Harrison, Amy Ogan, Yuvraj Agarwal
UbiComp '19: Proceedings of the ACM on Interactive, Mobile, Wearable and Ubiquitous Technologies
GymCam: Detecting, recognizing, and tracking simultaneous exercises in unconstrained scenes
Rushil Khurana*, Karan Ahuja*, Zac Yu, Jennifer Mankoff, Chris Harrison, Mayank Goel
UbiComp '19: Proceedings of the ACM on Interactive, Mobile, Wearable and Ubiquitous Technologies
LightAnchors: Appropriating Point Lights for Spatially-Anchored Augmented Reality Interfaces
Karan Ahuja, Sujeath Pareddy, Robert Xiao, Mayank Goel, Chris Harrison
UIST '19: Proceedings of the 32nd Annual ACM Symposium on User Interface Software and Technology
Collegiate Inventors Competition Finalist
MeCap: Whole-Body Digitization for Low-Cost VR/AR Headsets
Karan Ahuja, Robert Xiao, Mayank Goel, Chris Harrison
UIST '19: Proceedings of the 32nd Annual ACM Symposium on User Interface Software and Technology
Honorable Mention Award
ScratchThat: Supporting Command-Agnostic Speech Repair in Voice-Driven Assistants
Jason Wu, Karan Ahuja, Richard Li, Victor Chen, Jeffrey Bigham
UbiComp '19: Proceedings of the ACM on Interactive, Mobile, Wearable and Ubiquitous Technologies
2018
EyeSpyVR: Interactive Eye Sensing Using Off-the-Shelf Smartphone based VR headsets
Karan Ahuja, Rahul Islam, Varun Parashar, Kuntal Dey, Chris Harrison, Mayank Goel
UbiComp '18: Proceedings of the ACM on Interactive, Mobile, Wearable and Ubiquitous Technologies
Ubicoustics: Plug-and-Play Acoustic Activity Recognition
Gierad Laput, Karan Ahuja, Mayank Goel, Chris Harrison
UIST '18: Proceedings of the 31st Annual ACM Symposium on User Interface Software and Technology
Fast Company Innovation by Design Finalist2017
Convolutional Neural Networks for Ocular Smartphone-Based Biometrics
Karan Ahuja, Rahul Islam, Ferdous Barbhuiya, Kuntal Dey
PRL '17: Pattern Recognition Letters
OptiDwell: Intelligent Adjustment of Dwell Click Time
Aanand Nayyar, Utkarsh Dwivedi, Karan Ahuja, Nitendra Rajput, Seema Nagar, Kuntal Dey
IUI '17: Proceedings of the 22nd International Conference on Intelligent User Interfaces
2016
Eye center localization and detection using radial mapping
Karan Ahuja, Ruchika Banarjee, Seema Nagar, Kuntal Dey, Ferdous Barbhuiya
2016 IEEE International Conference on Image Processing (ICIP)