Equipment recommendation systems and methods
A computer-implemented method for recommending an item of equipment, which comprises: gathering sensed data from a sensor; processing the sensed data in accordance with a biomechanical protocol to determine at least one performance indicator associated with a subject's execution of the biomechanical protocol; and determining at least one recommended feature of an item of equipment based at least in part on the at least one performance indicator. Also, an equipment recommendation system with specific application to hockey, which comprises: a camera configured to produce images representative of execution of a hockey shot of a given type by a subject; an I/O interface; and a processor connected to the camera via the I/O interface and configured to extract parameters from the images and to output, via the I/O interface, a hockey stick recommendation for the subject that is based on the parameters and on the given type of hockey shot.
1 . A computer-implemented method for recommending and providing a hockey stick to a subject who performs a shooting protocol corresponding to a sequence of shots taken with a sample hockey stick, wherein the shooting protocol is characterized by execution of the sequence of shots that includes at least one wrist shot and at least one slap shot, comprising:
sensing with a plurality of sensors the subject's taking of the sequence of shots with the sample hockey stick;
operating at least one computer for:
gathering sensed data from the sensors corresponding to the subject's taking of the sequence of shots with the sample hockey stick;
processing the sensed data in accordance with the shooting protocol to determine at least one performance indicator, wherein the processing comprises aligning time series of the sensed data derived from the sensors;
determining at least one recommended hockey stick feature for the hockey stick based at least in part on the at least one performance indicator;
consulting a database of hockey stick records associated with known hockey sticks to determine if a particular one of the hockey stick records matches the at least one recommended hockey stick feature for the hockey stick;
in response to determining that the particular one of the hockey stick records matches the at least one recommended hockey stick feature for the hockey stick, outputting information identifying a particular one of the known hockey sticks associated with the particular one of the hockey stick records as the hockey stick recommended to the subject via a graphical user interface; and
in response to determining that none of the hockey stick records matches the at least one recommended hockey stick feature for the hockey stick: utilizing the at least one recommended hockey stick feature for the hockey stick to generate a customized hockey stick; and outputting information identifying the customized hockey stick as the hockey stick recommended to the subject via the graphical user interface;
and
providing the hockey stick to the subject according to the information identifying the particular one of the known hockey sticks or the information identifying the customized hockey stick.
2 . The computer-implemented method defined in claim 1 , wherein the at least one recommended hockey stick feature includes a blade pattern of the hockey stick.
3 . The computer-implemented method defined in claim 1 , wherein the at least one recommended hockey stick feature includes a resistance to flex of a shaft of the hockey stick.
4 . The computer-implemented method defined in claim 1 , further comprising obtaining a height and a weight of the subject, wherein the determining is a function of the height and the weight of the subject.
5 . The computer-implemented method defined in claim 1 , wherein gathering sensed data from the sensors comprises obtaining data from at least one inertial motion sensor attached to an equipment of the subject.
6 . The computer-implemented method defined in claim 1 , wherein gathering sensed data from the sensors comprises obtaining data from at least one inertial motion sensor set into motion by the subject.
7 . The computer-implemented method defined in claim 1 , wherein the at least one performance indicator associated with execution of the shooting protocol includes an indication of at least one of:
a puck impulse time during execution of a hockey shot; and
a maximum angular velocity of the sample hockey stick during execution of a hockey shot.
8 . The computer-implemented method defined in claim 1 , wherein the sensed data includes images, and the processing the sensed data comprises applying pattern recognition to time sequences of images.
9 . The computer-implemented method defined in claim 1 , wherein at least part of the processing the sensed data occurs during execution of the shooting protocol.
10 . The computer-implemented method defined in claim 1 , wherein all of the processing the sensed data occurs after execution of the shooting protocol has completed.
11 . The computer-implemented method defined in claim 1 , further comprising receiving an input from a user, the input specifying the shooting protocol from a plurality of shooting protocols.
12 . The computer-implemented method defined in claim 11 , further comprising issuing instructions to the subject to carry out the shooting protocol.
13 . The computer-implemented method defined in claim 1 , wherein the at least one recommended hockey stick feature comprises a set of recommended features, the method further comprising:
comparing the set of recommended features with predefined sets of features that characterize respective variants of the hockey stick; and
identifying at least one of the variants as a candidate variant based on the comparing.
14 . The computer-implemented method defined in claim 13 , wherein identifying at least one of the variants based on the comparing comprises identifying as a candidate variant a variant for which the corresponding set of features most closely matches the set of recommended features.
15 . The computer-implemented method defined in claim 1 , wherein the at least one performance indicator comprises a plurality of performance indicators, and wherein determining at least one recommended hockey stick feature based at least in part on the at least one performance indicator comprises:
comparing the performance indicators to sets of baseline values corresponding to respective variants of the hockey stick; and
identifying at least one of the variants based on the comparing;
wherein the at least one recommended hockey stick feature comprises an indication of the at least one identified variant.
16 . The computer-implemented method defined in claim 15 , wherein each variant is characterized by a combination of equipment features and wherein the indication of the at least one identified variant comprises at least one of the equipment features that characterizes the at least one identified variant.
17 . The computer-implemented method defined in claim 15 , wherein identifying at least one of the variants based on the comparing comprises identifying a variant for which the corresponding baseline values most closely match the performance indicators.
18 . The computer-implemented method defined in claim 15 , wherein the comparing comprises scoring the variants to obtain a score for each of the variants, and wherein the identifying at least one of the variants comprises identifying a variant for which the score is highest.
19 . The computer-implemented method defined in claim 1 , wherein the at least one performance indicator associated with execution of the shooting protocol includes an indication of at least one of:
a distance between the subject's hands on the hockey stick; and
hand movement time during execution of a hockey shot.
20 . The computer-implemented method defined in claim 1 , wherein the at least one performance indicator associated with execution of the shooting protocol includes an indication of at least one of:
a shooting stance of the subject; and
a portion of a body of the subject that is a main segment for energy generation.
21 . The computer-implemented method defined in claim 1 , comprising establishing a relative importance of hockey stick properties, wherein the determining the at least one recommended hockey stick feature for the hockey stick based at least in part on the at least one performance indicator comprises determining the at least one recommended hockey stick feature for the hockey stick based at least in part on the at least one performance indicator and the relative importance of the hockey stick properties.
22 . The computer-implemented method defined in claim 21 , wherein the establishing the relative importance of hockey stick properties comprises weighing the hockey stick properties based on predetermined coefficients indicative of the relative importance of the hockey stick properties.
23 . The computer-implemented method defined in claim 21 , wherein each of the at least one performance indicator is represented by a respective hockey stick property and a value of the respective hockey stick property;
the establishing the relative importance of hockey stick properties comprises establishing a decision tree that encodes the relative importance of hockey stick properties;
the determining at least one recommended hockey stick feature comprises comparing values of the respective hockey stick properties associated with the at least one performance indicator with predefined reference values of the respective hockey stick properties in an order that is defined by the decision tree.
24 . The method of claim 1 , wherein processing the sensed data comprises calculating at least one of estimated movement linear velocities, displacement, angular displacement, and angular acceleration of each of at least one wrist shot and the at least one slap shot.
25 . The method of claim 1 , wherein processing the sensed data comprises determining respective coordination patterns of the plurality of sensors.
26 . A system configured to recommend and provide a hockey stick to a subject who performs a shooting protocol corresponding to a sequence of shots taken with a sample hockey stick, wherein the shooting protocol is characterized by execution of the sequence of shots that includes at least one wrist shot and at least one slap shot, comprising:
a plurality of sensors configured to sense the subject's taking of the sequence of shots with the sample hockey stick; and
a processor coupled to the plurality of sensors and configured:
to gather sensed data from the plurality of sensors corresponding to the subject's taking of the sequence of shots with the sample hockey stick,
and
to process the sensed data in accordance with the shooting protocol to determine at least one performance indicator, wherein the sensed data is processed by aligning time series of the sensed data derived from the plurality of sensors;
to determine at least one recommended hockey stick feature for the hockey stick based at least in part on the at least one performance indicator;
to consult a database of hockey stick records associated with known hockey sticks to determine if a particular one of the hockey stick records matches the at least one recommended hockey stick feature for the hockey stick;
in response to determining that the particular one of the hockey stick records matches the at least one recommended hockey stick feature for the hockey stick, to cause a graphical user interface to output information identifying a particular one of the known hockey sticks associated with the particular one of the hockey stick records as the hockey stick recommended to the subject; and
in response to determining that none of the hockey stick records matches the at least one recommended hockey stick feature for the hockey stick: to utilize the at least one recommended hockey stick feature for the hockey stick to generate a customized hockey stick; and cause the graphical user interface to output information identifying the customized hockey stick as the hockey stick recommended to the subject; and
to cause the hockey stick to be provided to the subject according to the information identifying the particular one of the known hockey sticks or the information identifying the customized hockey stick.
27 . An equipment recommendation system configured to recommend and provide a hockey stick to a subject who performs a shooting protocol corresponding to a sequence of shots taken with a sample hockey stick, wherein the shooting protocol is characterized by execution of the sequence of shots that includes at least one wrist shot and at least one slap shot, comprising:
a plurality of cameras configured to produce images representative of the execution of the shooting protocol by the subject with the sample hockey stick;
an I/O interface; and
a processor connected to the plurality of cameras via the I/O interface and configured to extract parameters from the images,
to process the extracted parameters in accordance with the shooting protocol to determine at least one performance indicator, wherein the extracted parameters are processed by aligning time series of the extracted parameters derived from the plurality of cameras;
to determine at least one recommended hockey stick feature for the hockey stick based at least in part on the at least one performance indicator;
to consult a database of hockey stick records associated with known hockey sticks to determine if a particular one of the hockey stick records matches the at least one recommended hockey stick feature for the hockey stick;
in response to determining that the particular one of the hockey stick records matches the at least one recommended hockey stick feature for the hockey stick, to output, via the I/O interface, information identifying a particular one of the known hockey sticks associated with the particular one of the hockey stick records as the hockey stick recommended to the subject; and
in response to determining that none of the hockey stick records matches the at least one recommended hockey stick feature for the hockey stick: to utilize the at least one recommended hockey stick feature for the hockey stick to generate a customized hockey stick; and to output, via the I/O interface, information identifying the customized hockey stick as the hockey stick recommended to the subject:
to cause the hockey stick to be provided to the subject according to the information identifying the particular one of the known hockey sticks or the information identifying the customized hockey stick.
28 . A method for providing a hockey stick to a subject who performs a shooting protocol corresponding to a sequence of shots taken with a sample hockey stick, wherein the shooting protocol is characterized by execution of the sequence of shots that includes at least one wrist shot and at least one slap shot, the method comprising:
sensing, with a plurality of sensors, the subject's taking of the sequence of shots with the sample hockey stick;
gathering, with at least one computer, sensed data from the sensors corresponding to the subject's taking of the sequence of shots with the sample hockey stick;
processing, with the at least one computer, the sensed data in accordance with the shooting protocol to determine at least one performance indicator, wherein the processing comprises aligning time series of the sensed data derived from the sensors;
determining, with the at least one computer, at least one recommended hockey stick feature for the hockey stick based at least in part on the at least one performance indicator;
consulting, with the at least one computer, a database of hockey stick records associated with known hockey sticks to identify a particular one of the hockey stick records that matches the at least one recommended hockey stick feature for the hockey stick;
outputting, via a graphical user interface of the at least one computer, information identifying a particular one of the known hockey sticks associated with the particular one of the hockey stick records as the hockey stick recommended for the subject; and
providing the hockey stick to the subject based on the information identifying the particular one of the known hockey sticks.
29 . The method defined in claim 28 , wherein the at least one recommended hockey stick feature includes a blade pattern of the hockey stick.
30 . The method defined in claim 28 , further comprising obtaining a height and a weight of the subject, wherein the determining is a function of the height and the weight of the subject.