Guide frames improve centerline estimation of complex postures in WormTracer
Chung-Kuan Chen, Yuichi Iino, Yu Toyoshima · 2026
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Description
Chung-Kuan Chen, Yuichi Iino, and Yu Toyoshima published a 2026 paper improving software that traces the posture of a tiny worm. The nematode Caenorhabditis elegans is a workhorse of behavior research, and its body centerline, extracted from video, is the basic data of that science. A program called WormTracer already follows centerlines reliably through time. It stumbled, though, on long, tangled postures like loops and sharp turns, unless a human intervened.
The update lets users supply corrected centerlines as guide frames. Anchored by those trusted snapshots, the algorithm estimates the difficult stretches between them accurately. A companion plugin for a popular image viewer lets researchers revise centerlines by hand inside their normal workflow. The change is small in description and large in practice: hours of manual tracing shrink to a few corrections. Behavior studies live on such tooling, where the measurement step decides what questions can be asked at all.
Catalog record
| CREATOR | Chung-Kuan Chen, Yuichi Iino, Yu Toyoshima |
|---|---|
| YEAR | 2026 |
| COLLECTION | PAPERS |
| FORMAT | TXT |
| FILE SIZE | 11 KB |
| VERSION | 1.0 |
| LICENSE | CC BY 4.0 |
| RIGHTS | CC BY |
| SOURCE | Europe PMC |