A 2D Markerless Gait Analysis Methodology: Validation on Healthy Subjects

Figure 3

Tibia reference points detection. These points are identified on the silhouette as the intersections between the shank contour and the circles of radius , centered in . (cyan circle); predicted (white cross); magnified: arc of circumference of radius (yellow curve); : reference point detected in the current frame (red circle); : template reference point after fitting (cyan circle); silhouette contour line (contour).