System and method for tracking and assessing movement skills in multidimensional space

• US 6,308,565 B1
• Filed: 10/15/1998
• Issued: 10/30/2001
• Est. Priority Date: 11/06/1995
• Status: Expired due to Term

• Current Assignee: Impulse Technology Limited
• Original Assignee: Impulse Technology Limited
• Inventors: French, Barry J., Ferguson, Kevin R.
• Primary Examiner(s): Fuller, Benjamin R.
• Assistant Examiner(s): THOMPSON, JEWEL VERGIE
• Application Number:
  US09/173,274
• Time in Patent Office: 1,111 Days
• Field of Search: 733/790.4, 273/437, 364/410, 128/782, 434/21
• US Class Current: 73/379.04
• CPC Class Codes: A63B 2024/0025 Tracking the path or location of one or more users, e.g. players of a game
• CPC Class Codes: A63B 2102/22 Field hockey
• CPC Class Codes: A63B 2208/12 specially adapted for children
• CPC Class Codes: A63B 2220/13 Relative positions
• CPC Class Codes: A63B 2220/30 Speed
• CPC Class Codes: A63B 2220/40 Acceleration
• CPC Class Codes: A63B 2220/806 Video cameras
• CPC Class Codes: A63B 2220/807 Photo cameras
• CPC Class Codes: A63B 2230/04 heartbeat characteristics, e.g. ECG, blood pressure modulations
• CPC Class Codes: A63B 2243/0066 Rugby; American football
• CPC Class Codes: A63B 2244/081 High jumping
• CPC Class Codes: A63B 2244/082 Long jumping
• CPC Class Codes: A63B 24/0003 Analysing the course of a movement or motion sequences during an exercise or trainings sequence, e.g. swing for golf or tennis
• CPC Class Codes: A63B 24/0021 Tracking a path or terminating locations
• CPC Class Codes: A63B 69/0024 for hockey
• CPC Class Codes: A63B 69/0053 Apparatus generating random stimulus signals for reaction-time training involving a substantial physical effort
• CPC Class Codes: A63B 69/0071 for basketball
• CPC Class Codes: A63B 69/0095 for volley-ball

Abstract

Accurate simulation of sport to quantify and train performance constructs by employing sensing electronics for determining, in essentially real time, the player'"'"'s three dimensional positional changes in three or more degrees of freedom (three dimensions); and computer controlled sport specific cuing that evokes or prompts sport specific responses from the player that are measured to provide meaningful indicia of performance. The sport specific cuing is characterized as a virtual opponent that is responsive to, and interactive with, the player in real time. The virtual opponent continually delivers and/or responds to stimuli to create realistic movement challenges for the player.

Claims

1. A testing and training system comprising:

a tracking system for continuously tracking an overall physical location of a player in a defined physical space; and

a computer operatively coupled to the tracking system for updating in real time a player virtual location in a virtual space corresponding to the physical location of the player in the physical space, for updating a view of the virtual space, and for providing at least one indicium of performance of the player moving in the physical space, wherein the at least one indicium is or is derived from a measure of a movement parameter of the player.

2. The testing and training system of claim 1, wherein the at least one indicium of performance includes an indicium selected from the group consisting of a measure of work performed by the player, a measure of the player'"'"'s velocity, a measure of the player'"'"'s power, a measure of the player'"'"'s ability to maximize spatial differences over time between the player and a virtual protagonist, a time in compliance, a measure of the player'"'"'s acceleration, a measure of the player'"'"'s ability to rapidly change direction of movement, a measure of dynamic reaction time, a measure of elapsed time from presentation of a cue to the player'"'"'s initial movement in response to the cue, a measure of direction of the initial movement relative to a desired response direction, a measure of cutting ability, a measure of phase lag time, a measure of first step quickness, a measure of jumping or bounding, a measure of cardio-respiratory status, and a measure of sports posture.

3. The testing and training system of claim 1, further comprising a display operatively coupled to the computer for displaying in real time the view of the virtual space.

4. The testing and training system of claim 1, wherein the view of the virtual space is a first person perspective view from the player virtual location.

5. The testing and training system of claim 4, wherein the first person perspective view includes a representation indicating part of a virtual being corresponding to the player.

6. The testing and training system of claim 1, wherein the view of the virtual space includes a player icon located at the player virtual location.

7. The testing and training system of claim 1, wherein the computer updates a protagonist virtual location of a virtual protagonist in the virtual space, and the view includes a protagonist icon located at the protagonist virtual location.

8. The testing and training system of claim 7, wherein the computer updates the protagonist virtual location as a function of a selectable modulation factor.

9. The testing and training system of claim 8, wherein the modulation factor controls the rate of change of the protagonist virtual location.

10. The testing and training system of claim 7, wherein the updating of the protagonist virtual location is made in response to the changes in the physical location of the player, such that the virtual protagonist and the player engage in an interactive task.

11. The testing and training system of claim 10, wherein the interactive task involves the player attempting to create an asynchronous event, and said at least one indicium of performance of the player includes a measure of the player'"'"'s ability to maximize spatial differences over time between the player and the virtual protagonist.

12. The testing and training system of claim 7, wherein said at least one indicium of performance of the player includes a measure of the player'"'"'s ability over a time interval to minimize spacial differences between the player virtual location and the protagonist virtual location.

13. The testing and training system of claim 12, wherein the at least one indicium of performance of the player includes a time in compliance.

14. The testing and training system of claim 7, wherein the at least one indicium of performance of the player includes a measure of the player'"'"'s bi-lateral vector accelerations and decelerations.

15. The testing and training system of claim 7, wherein the at least one indicium of performance of the player includes a measure of the player'"'"'s power.

16. The testing and training system of claim 7, wherein the updating of the protagonist virtual location includes providing a cue for prompting the player to rapidly change movement.

17. The testing and training system of claim 16, wherein the at least one indicium of performance of the player includes a measure of the player'"'"'s ability to rapidly change direction of movement.

18. The testing and training system of claim 16, wherein the at least one indicium of performance of the player includes a measure of dynamic reaction time.

19. The testing and training system of claim 16, wherein the at least one indicium of performance of the player includes a measure of elapsed time from presentation of the cue to the player'"'"'s initial movement in response to the cue.

20. The testing and training system of claim 19, wherein the at least one indicium further includes a measure of direction of the initial movement relative to a desired response direction.

21. The testing and training system of claim 16, wherein the at least one indicium of performance of the player includes a measure of cutting ability.

22. The testing and training system of claim 1, wherein the at least one indicium of performance of the player includes a measure of a peak elevation while jumping or bounding.

23. The testing and training system of claim 1, further comprising a heart monitor worn by the player and operatively coupled to the computer, and wherein the at least one indicium of performance of the player includes a measure of cardio-respiratory status.

24. The testing and training system of claim 1, further comprising a storage device for recording location information associated with the player.

25. The testing and training system of claim 24, wherein the computer is able to use location information previously recorded on the storage device to control motion of the virtual protagonist.

26. The testing and training device of claim 1, wherein the virtual space has a scaled correspondence to the physical space, scaling of the scaled correspondence being a function of one or more selectable scale factors.

27. The testing and training device of claim 1, wherein the tracking system also tracks changes in an orientation of the player.

28. The testing and training device of claim 1, further comprising an exercise device located in the physical space, the exercise device to be used by the player.

29. The testing and training device of claim 1, further comprising a resistance device attached to the player to provide resistance to player movement.

52. The testing and training system of claim 1, wherein the at least one indicium includes a measure of distance traveled.

53. The testing and training system of claim 1, wherein the at least one indicium includes measures of distance traveled in each of three directions.

54. The testing and training system of claim 53, wherein the at least one indicium further includes a measure of total distance traveled.

55. The testing and training system of claim 23, wherein the indicium of cardiorespiratory status includes a measure of average heart rate.

56. The testing and training system of claim 23, wherein the indicium of cardiorespiratory status includes a measure of peak heart rate.

57. The testing and training system of claim 1, wherein the at least one indicium includes a measure of calories burned.

58. The testing and training system of claim 1, wherein the at least one indicium includes a measure of dynamic posture.

59. The testing and training system of claim 1, wherein the at least one indicium includes a measure of agility.

60. The testing and training system of claim 1, wherein the at least one indicium includes a measure of the player'"'"'s ability to minimize spatial differences over time between the player'"'"'s location and a desired path of player movement.

63. The testing and training system of claim 1, wherein the tracking system also determines changes in an upper extremity location of an upper extremity of the player.

64. The testing and training system of claim 63, wherein the at least one indicium includes an upper extremity indicium which is or is derived from a measure of an upper extremity movement parameter of the upper extremity of the player.

65. The testing and training system of claim 64, wherein the upper extremity indicium includes an indicium selected from the group consisting of upper extremity dynamic reaction time, upper extremity vector acceleration, upper extremity synchronicity, and upper extremity cardio-vector.

66. The testing and training system of claim 64, wherein the upper extremity indicium includes an indicium selected from the group consisting of power, upper extremity velocity, and upper extremity distance traveled.

30. A method for testing and training comprising the steps of:

tracking an overall physical location of a player within a defined physical space;

updating in real time a player virtual location corresponding to the physical location of the player;

updating in real time a view of the virtual space; and

providing at least one indicium of performance of the player moving in the physical space, the at least one indicium being or being derived from a measure of a movement parameter of the player.

31. The method of claim 30, further comprising displaying the view in real time.

32. The method of claim 30, wherein the updating a view includes updating a first person perspective view of the virtual space from the player virtual location.

33. The method of claim 30, further comprising providing movement cues to the player.

34. The method of claim 33, wherein the providing cues includes updating the location of a virtual protagonist icon in the virtual space, and displaying the view in real time.

35. The method of claim 30, wherein said at least one indicium of performance of the player includes an indicium selected from the group consisting of a measure of the player'"'"'s ability to maximize spatial differences over time between the player and a virtual protagonist, a time in compliance, a measure of the player'"'"'s acceleration, a measure of the player'"'"'s ability to rapidly change direction of movement, a measure of dynamic reaction time, a measure of elapsed time from presentation of a cue to the player'"'"'s initial movement in response to the cue, a measure of direction of the initial movement relative to a desired response direction, a measure of cutting ability, a measure of phase lag time, a measure of first step quickness, a measure of jumping or bounding, a measure of cardio-respiratory status, and a measure of sports posture.

36. The method of claim 30, further comprising providing sports-specific cuing to the player.

37. The method of claim 36, further comprising tracking the heart rate of the player.

61. The method of claim 33, wherein the movement cues are varied based on performance of the player.

62. The method of claim 37, wherein the heart rate of the player is used to vary the sports-specific cuing.

38. A game system for two or more players comprising:

a continuous three-dimensional tracking system for each of the players for determining changes in an overall physical location of the respective player in a respective defined physical space; and

a computer operatively coupled to the tracking systems for updating in real time player virtual locations in a virtual space corresponding to the physical locations of the players.

39. The game system of claim 38, wherein the computer updates a view of the virtual space, and further comprising a display operatively coupled to the computer for displaying in real time the view of the virtual space.

40. The game system of claim 38, wherein the computer updates respective first person perspective views of the virtual space from respective of the player virtual locations.

41. The game system of claim 40, further comprising displays operatively coupled to the computer for displaying the first person perspective views to respective of the players.

42. The game system of claim 38, wherein the performance of at least one of the players is scaled in the virtual space so as to handicap one of the opponents relative to the other.

43. A testing and training system for assessing the ability of a player to complete a task, comprising:

tracking means for determining the position of the player within a defined physical space within which the player moves to undertake the task, based on at least two Cartesian coordinates;

display means, operatively coupled to said tracking means, for displaying in a virtual space a player icon representing the instantaneous position of the player therein in scaled translation to the position of the player in said defined physical space;

means operatively coupled to said display means for depicting in said virtual space a protagonist;

means for defining an interactive task between the position of the player and the position of the protagonist icon in said virtual space; and

means for assessing the ability of the player in completing said task based on quantities of distance and time;

wherein said task comprises a plurality of segments requiring sufficient movement of said player in said defined physical space to provide quantification of bilateral vector performance of said player in completing said task.

44. A testing and training system comprising:

tracking means for tracking a user'"'"'s position within a physical space in three dimensions;

display means, operatively linked to said tracking means, for indicating the user'"'"'s position within said physical space in essentially real time;

means for defining an interactive protocol for said user;

means for measuring in essentially real time vertical displacements of the user'"'"'s center of gravity as the user responds to interactive protocols;

means for calculating the user'"'"'s movement velocities and/or accelerations during performance of said protocols; and

means for assessing the user'"'"'s performance in executing said physical activity.

45. A system as in claim 44 further comprising:

determining a user'"'"'s most efficient dynamic posture; and

means for providing numerical and graphical results of said measuring, calculating, and determining.

46. A system as in claim 44, further comprising:

calibrating the system for a dynamic posture that a user wishes to train, selected by the user; and

providing real-time feedback of a measurement of compliance with the desired dynamic posture during performance of the protocols.

47. A testing and training system comprising:

tracking means for tracking a user'"'"'s movement in three-degrees-of-freedom during his performance of protocols which include unplanned movements over various vector distances;

display means, operatively linked to said tracking means, for indicating the user'"'"'s position within said physical space in essentially real time;

means for defining a physical activity for said user operatively connected to said display means; and

means calculating in essentially real-time the user'"'"'s movement accelerations and decelerations;

means categorizing each movement leg to a particular vector; and

means for displaying feedback of bilateral performance.

48. A testing and training system comprising:

tracking means for tracking a user'"'"'s position within a physical space in three dimensions;

means for displaying a view of a virtual space proportional in dimensions to said physical space;

means for displaying, in essentially real time, a user icon in said virtual space at a location which is a spatially correct representation of the user'"'"'s position within said physical space;

means for defining a physical activity for said user operatively connected to said display means; and

means for assessing the user'"'"'s performance in executing said physical activity.

49. A testing and training system comprising:

a tracking system for providing a set of three dimensional coordinates of a user within a physical space;

a computer operatively linked to said tracking system to receive said coordinates from said tracking system and indicate the user'"'"'s position within said physical space on a display in essentially real time; and

wherein said computer includes a program to define a physical activity for the user and measure the user'"'"'s performance in executing the activity, to calculate the user'"'"'s movement velocities and/or accelerations during performance of said protocols, and to determine a user'"'"'s dynamic posture.

50. The testing and tracking system of claim 49, wherein the computer further determines a measurement of compliance with the desired dynamic posture during performance of the protocols.

51. A testing and training system comprising:

a tracking system for providing a set of three dimensional coordinates of a user within a physical space during performance of protocols including unplanned movements over various vector distances;

a computer operatively linked to said tracking system to receive said coordinates from said tracking system and indicate the user'"'"'s position within said physical space on a display in essentially real time, and to calculate in essentially real-time the user'"'"'s movement accelerations and decelerations in executing the activity; and

means for displaying feedback of bilateral performance.

67. A testing and training system comprising;

a tracking system for continuously tracking the overall physical location of a player in a defined physical space having a first coordinate system; and

a computer operatively coupled to the tracking system for updating in real time a player virtual location in a virtual space corresponding to the physical location of the player in the physical space, and for updating a view of the virtual space having a second coordinate system, wherein the computer has an output for outputting the view of the virtual space to a display; and

wherein the first and second coordinate systems are substantially parallel and directed in the same sense.

68. The testing and training system of claim 67, wherein the view of the virtual space includes a virtual representation of at least a part of the player.

69. The testing and training system of claim 68, wherein the view is from a point of view in the virtual space behind the virtual representation of the at least part of the player.

70. The testing and training system of claim 68, further comprising a display operatively coupled to the computer, wherein the display displays the view of the virtual space.

71. The testing and training system of claim 70, wherein the view is from a point of view in the virtual space corresponding to a location on a line directed outward from the display into the physical space.

72. The testing and training system of claim 70, wherein the view is from a point of view in the virtual space corresponding to a location on a line directed substantially perpendicular to the display.

73. The testing and training system of claim 70, wherein the view of the virtual space is a first person perspective view from the player virtual location.

74. The testing and training system of claim 70, wherein the computer provides at least one indicium of performance of the player moving in the physical space, wherein the at least one indicium is or is derived from a measure of a movement parameter of the player.

75. The testing and training system of claim 74, wherein the view of the virtual space includes a player icon located at the player virtual location.

76. The testing and training system of claim 75, wherein the computer updates a protagonist virtual location of a virtual protagonist in the virtual space, and the view includes a protagonist icon located at the protagonist virtual location.

77. The testing and training system of claim 76, wherein the computer updates the protagonist virtual location as a function of a selectable modulation factor.

78. The testing and training system of claim 77, wherein the modulation factor controls the rate of change of the protagonist virtual location.

79. The testing and training system of claim 76, wherein the updating of the protagonist virtual location is made in response to the changes in the physical location of the player, such that the virtual protagonist and the player engage in an interactive task.

80. The testing and training system of claim 79, wherein the interactive task involves the player attempting to create an asynchronous event, and the at least one indicium of performance of the player includes a measure of the player'"'"'s ability to maximize spatial differences over time between the player and the virtual protagonist.

81. The testing and training system of claim 76, wherein said at least one indicium of performance of the player includes a measure of the player'"'"'s ability over a time interval to minimize spacial differences between the player virtual location and the protagonist virtual location.

82. The testing and training system of claim 81, wherein the at least one indicium of performance of the player includes a time in compliance.

83. The testing and training system of claim 74, wherein the at least one indicium of performance of the player includes a measure of the player'"'"'s bi-lateral vector accelerations and decelerations.

84. The testing and training system of claim 74, wherein the at least one indicium of performance of the player includes a measure of the player'"'"'s power.

85. The testing and training system of claim 76, wherein the updating of the protagonist virtual location Includes providing a cue for prompting the player to rapidly change movement.

86. The testing and training system of claim 85, wherein the at least one indicium of performance of the player includes a measure of the player'"'"'s ability to rapidly change direction of movement.

87. The testing and training system of claim 85, wherein the at least one indicium of performance of the player includes a measure of dynamic reaction time.

88. The testing and training system of claim 85, wherein the at least one indicium of performance of the player includes a measure of elapsed time from presentation of the cue to the player'"'"'s initial movement in response to the cue.

89. The testing and training system of claim 88, wherein the at least one indicium further includes a measure of direction of the initial movement relative to a desired response direction.

90. The testing and training system of claim 85, wherein the at least one indicium of performance of the player includes a measure of cutting ability.

91. The testing and training system of claim 74, wherein the at least one indicium includes a measure of dynamic posture.

92. The testing and training system of claim 74, wherein the at least one indicium includes a measure of agility.

93. The testing and training system of claim 74, wherein the at least one indicium includes a measure of the player'"'"'s ability to minimize spatial differences over time between the player'"'"'s location and a desired path of player movement.

94. The testing and training system of claim 70, wherein the tracking system also tracks changes in an orientation of the player.

95. A method for testing and training comprising the steps of:

tracking an overall physical location of a player within a defined physical space having a first coordinate system;

updating in real time a player virtual location corresponding to the physical location of the player; and

updating in real time a view of the virtual space having a second coordinate system;

wherein the first and second coordinate systems are substantially parallel and directed in the same sense.

96. The method of claim 95, further comprising displaying the view on a display.

97. The method of claim 95, further comprising providing at least one indicium of performance of the player moving in the physical space, the at least one indicium being or being derived from a measure of a movement parameter of the player.

98. The method of claim 95, further comprising providing movement cues to the player.

99. The method of claim 98, wherein the providing cues includes updating the location of a virtual protagonist icon in the virtual space, and displaying the view in real time.

100. The method of claim 95, wherein said at least one indicium of performance of the player includes an indicium selected from the group consisting of a measure of the player'"'"'s ability to maximize spatial differences over time between the player and a virtual protagonist, a time in compliance, a measure of the player'"'"'s acceleration, a measure of the player'"'"'s ability to rapidly change direction of movement, a measure of dynamic reaction time, a measure of elapsed time from presentation of a cue to the player'"'"'s initial movement in response to the cue, a measure of direction of the initial movement relative to a desired response direction, a measure of cutting ability, a measure of phase lag time, a measure of first step quickness, a measure of jumping or bounding, a measure of cardio-respiratory status, and a measure of sports posture.