Table 1.
Profiles of target players.
Fig 1.
Summary of analysis 1 and 2.
Fig 2.
An overhead view image was generated by applying homography transformation to the badminton match recordings ([px]→[m]).
Fig 3.
To verify the accuracy of the proposed method, 38 corner positions on the badminton court were used.
Fig 4.
Comparison of the distances between the estimated 38 corner positions and the ground truth.
Table 2.
Number of measurements for the target scene.
Fig 5.
Reaction time to the rear area of the forehand.
Fig 6.
Stance width [cm]/height [cm].
Fig 7.
Split-step stance position to the rear area of the forehand (thenar).
Fig 8.
Aggregation of the midpoints of the split-step stance positions.
The median is indicated by an asterisk.
Fig 9.
Distance from the median to the player’s position (midpoint).
Fig 10.
Number of measured hitting positions of the opponent player (nine segmented areas).
Fig 11.
Differences in the ratios between the two groups for the proportion of each area of the opponent players hitting positions (nine segmented areas, P-value).