Visualizing the Difference between Two Motions Using a Color Matrix

This study proposes a visualization method using a color matrix to intuitively highlight differences between two motions. Traditional tools like stick figures or graphs often fail to clearly convey where and how motions differ, especially across multiple body segments and time frames. By combining stick figure visualization with a color matrix representing motion differences over time, the proposed system allows users to identify which body parts differ, when those differences occur, and how they propagate. An experiment using golf swing data demonstrated that the method effectively reveals subtle discrepancies in motion, such as asymmetries and shifts in posture, aiding in more precise motion analysis.