Sports Science × Pose Estimation × XR

Teaching AI to see human movement.

From sports & exercise science to AI — I build markerless human pose estimation and AI-driven movement analysis, and break down the research here and on YouTube.

MediaPipe
OpenPose
ARKit
OpenSim
Unity
Meta Quest

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130+YouTube videos

10+international talks

EN · 日本語bilingual content

POSE DETECTED · 98.7%

Focus areas

🧍

Human Pose Estimation

MediaPipe, OpenPose, and the latest markerless methods.

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Motion Capture & Biomechanics

Sports movement analysis and validation studies.

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Computer Vision & AI

AI-driven movement analysis and modeling.

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XR / Metaverse

Unity & Meta Quest development.

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Latest articles

Pose from a Single Sensor: One Broadcast Camera, One Smartwatch2026年10月7日
Two 2026 preprints reconstruct body pose from strikingly sparse input — 3D football players from one broadcast camera, and a whole arm from one smartwatch — both calibration-free, both leaning on a built-in prior.
Is Markerless Ready for the Clinic? A Scoping Review and a Screening Study2026年10月7日
Two 2026 studies test whether markerless motion capture is clinic-ready: a 117-study scoping review of video-based joint angles, and an OpenCap landing score validated against Vicon. Readiness depends on the question.
How Far to Trust a Wearable’s Number: Velocity, Muscle Timing, Jump Height2026年9月10日
Four 2026 validation studies on wearables — velocity sensors, EMG timing, a wireless EMG device, and jump tools — agree: reliable for a group or a trend, shakier for one session, muscle, or device comparison.
The Sensor Is Not the Measurement: IMUs, Sweat, and Modelled Forces2026年9月10日
Three 2026 papers — multi-IMU sync, sweat biosensors, and video-to-force modelling — sit several inferential steps from what they want to measure. The sensor is not the measurement; every modelled step adds error.
Borrowing a Pose Model for a New Job: Squats, Table Tennis, and Fall Risk2026年9月10日
Three 2026 studies bolt a task-specific stage onto a general-purpose pose estimator — grading squats, measuring a table-tennis elbow, predicting a fall — and each hits the same wall: the accuracy number belongs to one camera setup.
Where Markerless Kinematics Holds Up: Two Reviews, Two Validation Tests2026年9月10日
Two 2026 reviews and two validation studies on markerless kinematics converge on one answer: accuracy is not a single number — it is specific to the joint, the plane, and the task.

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Profile

I’m Takashi Fukushima, a researcher and developer working across sports & exercise science, motion capture, and computer vision. My focus is markerless human pose estimation and AI-driven movement analysis, alongside XR development with Unity and Meta Quest. I publish peer-reviewed research and break it down here and on my channel.

Human Pose Estimation (MediaPipe, OpenPose, latest methods)
Motion Capture & Sports Biomechanics
Computer Vision & AI movement analysis
XR / Metaverse development (Unity & Meta Quest)

Achievements

Positions & Affiliations

Specially Appointed Assistant Professor, Education Incubation Center, Tokyo Gakugei University
Executive Board Member, Asia Council on Exercise & Sports Science (ACESS)
Executive Board Member & Secretary, Global Metaverse Laboratory
CTO, Aletheia LLC
International Technological Partner, Sports Performance Analysis Association in Bharat (SPAAB) — Capacity Building Sessions; HALO (Human Analysis of Locomotor Optimization) Sessions 1／2／3

Commissioned & Funded Projects

FY2024 — Japan Sports Agency, Support Project for Reiwa Japanese-Style School Physical Education: enriching PE classes in the GIGA School environment (Theme 1) and inclusive PE classes for children with and without disabilities (Theme 2) — Secretary-General
FY2025 — MEXT commissioned project: Promoting the Use of Advanced Technology and Education Data for Next-Generation Schools (demonstration project on cutting-edge technology and education data) — Research Specialist (Engineer)
FY2025 — Support Project for Reiwa Japanese-Style School Physical Education (improving teaching methods for inclusive PE classes) — Deputy Research Director
FY2026 — MEXT commissioned project: Promotion of Moral Education that Fosters the Ability to Put One’s Way of Life into Practice — Specially Appointed Assistant Professor