Figure 6From: Accuracy assessment of Tri-plane B-mode ultrasound for non-invasive 3D kinematic analysis of knee joints Experiment 1 (water is used as a coupling medium between US and bone phantom): measurement errors for the proposed system. Graphs (a), (c) depicts errors due to femur translation and rotation estimation, and (b), (d) for tibia translation and rotation estimation, respectively.Back to article page