Ilona Demler

Hello! I'm a PhD student at Caltech advised by Pietro Perona and Georgia Gkioxari. Previously, I graduated from Harvard with a bachelor's degree in physics, where I worked with Michael Brenner. My graduate research is funded by the NSF Graduate Research Fellowship and the Caltech EAS Chair Scholarship.

I'm interested in computer vision problems involving understanding the dynamic, 3D world. Currently, I'm working on dynamic human pose estimation and action analysis from video, and dabbling in humanoid robotics.

I'm best reachable via email at idemler at caltech dot edu.

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Publications

TaskNPoint
TaskNPoint: How to Teach Your Humanoid to Hit a Backhand in Minutes
Blake Werner, Ilona Demler, Pietro Perona, Aaron D. Ames
Under Review, 2026
CalTennis
CalTennis: Large Multi-View Tennis Video Dataset and Benchmark of Monocular-to-3D Pose Estimation
Ilona Demler, Xinran Xie, Blake Werner, Anna Szczuka, Pietro Perona
Under Review, 2026
ITTO
ITTO: Is This Tracker On? A Benchmark Protocol for Dynamic Tracking
Ilona Demler, Saumya Chauhan, Georgia Gkioxari
NeurIPS, 2025

News

Aug. 2025 ITTO was accepted to NeurIPS 2025!
Sep. 2023 Started my Ph.D at Caltech working with Georgia Gkioxari and Pietro Perona.
Sep. 2023 Named a National Science Foundation Graduate Research Fellow and Caltech EAS Chair Scholar.
June 2023 Presented my undergraduate thesis on human pose estimation for neurological disease analysis at the AIFI summer workshop.
May 2023 Graduated with a major in physics and minor in computer science from Harvard.
April 2023 Awarded Carol Davis prize by Harvard Physics Department.

Other Adventures

Negotiation book
Understanding Others through Negotiation: A Guide for Students by Students
Lucas Woodley, Ilona Demler, Sarah Lightbody, Uriel Martinez, Clara Nevins, Indumathi Prakash, Daniel L. Shapiro
The Program on Negotiation at Harvard Law School and the Harvard International Negotiation Program

Fun

In a past life I trained to become a professional ballet dancer, and studied briefly at the Bolshoi Ballet Academy in Moscow. Ballet inspired my passion for understanding human motion and the art of correct technical movement. Ballet training, much like all serious athletic pursuits, takes a toll on the body. I have beeen in and out of physical therapy throughout the past two decades (thankfully nothing permanent). As a result I am also very passionate about injury prevention, rehabilitation, and exercises for longevity. I am always looking to apply my work to this domain.

Nowadays, outside of research, I play and watch a lot of tennis. I also enjoy pilates, swimming, hiking, and generally photosynthesizing. Indoors, I love reading (flash fiction and memoirs), journaling, and chess.

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Writing

I am always reading something, and when I can I try to write up my thoughts. Here are some pieces on stuff I've read over the past few years. Some of these were written for literature classes I had the fortune of taking while at Harvard:

Original Website Template credits: Jon Barron