Fig. 1 | Scientific Reports

Fig. 1

From: Reliability and validity of OpenPose for measuring HKA angle in dynamic walking videos in patients with knee osteoarthritis

Fig. 1

Workflow correspondent to the data processing using OpenPose. The illustration shows the workflow for video recording and OpenPose processing. First, a single smartphone captures the walking video of the subject. Then, OpenPose analyzes the video recording, and a custom Python script processes the data. Finally, compare the HKA angle with radiography. (A) Sample image from a participant’s recorded walk; (B) The OpenPose skeletal model and the name of each part. From: Sugiyama Y, Uno K, Matsui Y. Types of anomalies in two-dimensional video-based gait analysis in uncontrolled environments. PLoS Comput Biol. 2023;19(1):e1009989. (C) A sample output of OpenPose with the detected keypoints of interest plotted on the image; (D): Preoperative HKA angle measurement method in Radiographic image. The image was created using BioRender (https://biorender.com/) with publication and licensing rights (Agreement number: US27WFZL9I).

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