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Error scattergrams and 95% confidence ellipses from the YOLOv3 (red) and SSD (blue) methods. YOLOv3 resulted in a more uniformly distributed pattern of detection errors (more circular isotropic shaped ellipse) as well as higher accuracy (smaller sized ellipse) than SSD. (a) Errors after detecting porion. (b) Errors after detecting condylion.
