Case study
Computer vision bar path tracking and 3D skeleton replay in a premium light sports UI, with plate color semantics and reduced motion accessibility.
Proposed architecture; original stack not verified.
Photography shows industry context, not the client’s premises or a product screenshot.
The context
The video analysis application is a delivered video-analysis product for Olympic weightlifting. It combines computer vision bar path tracking with 3D skeleton replay.
A premium light sports interface, plate color semantics and reduced motion accessibility are part of the delivered experience.
The challenge
Present bar movement and body movement as complementary ways to review a weightlifting video.
Make a technical analysis product readable through a light sports interface and familiar plate colors.
Include reduced motion accessibility in an experience whose central subject is movement.
The solution
Delivered functionality and implementation boundaries.
01
Video provides the input for examining a lift. Recording angle, visibility and image quality affect how footage can be interpreted. Computer vision bar path tracking and 3D skeleton replay give the analysis interface two complementary representations of the recorded movement.
02
Bar path tracking provides a representation of the bar's movement through the lift. This gives a lifter or coach a way to examine spatial behavior alongside ordinary video playback. It supports questions about the movement without claiming to replace a coach's interpretation.
03
The 3D skeleton replay offers a body-focused view of the recorded movement. Bar motion and body motion are related but distinct perspectives on the same lift. A reconstructed skeleton remains an interpretation, so reviewing the source footage is important when a result appears inconsistent.
04
The light sports UI uses plate color semantics. Familiar equipment colors help connect the analysis interface with the sport. Reduced motion accessibility addresses how users encounter movement in the interface, while keeping the analysis itself available as the purpose of the product.
Core functionality
Technical implementation
A representative design separates video ingestion and analysis from browser playback. Python workers can return time-indexed tracking and pose data, while a React/TypeScript interface synchronizes overlays and 3D replay. The delivered capabilities establish bar-path tracking, skeleton replay and reduced-motion support, but do not establish this exact historical implementation.
React · TypeScript · Python
Business impact
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