bowling-analysis-system/src/core/constants/MetricsDependencyMap.js

A comprehensive system for analyzing bowling techniques using video processing and metrics calculation

/**
 * @module constants/MetricsDependencyMap
 * @description Defines the metrics that should be calculated in each phase
 */

/**
 * Phase one metrics are calculated directly from the keypoint data
 */
const PHASE_ONE_METRICS = {
  angles: [
    'armAngle',
    'elbowFlexion',
    'shoulderRotation',
    'shoulderTilt',
    'hipRotation',
    'kneeFlexion',
    'spineTwist',
    'trunkLean',
    'wristAngle',
    'ankleFlexion',
    'spineAngle',
    'neckAngle',
    'hipFlexion',
    'shoulderFlexion',
    'trunkFlexion'
  ],
  velocity: [
    'armVelocity',
    'shoulderVelocity',
    'elbowVelocity',
    'wristVelocity',
    'hipVelocity',
    'kneeVelocity',
    'legVelocity',
    'torsoVelocity',
    'approachVelocity',
    'ballVelocity',
    'angularVelocity',
    'headVelocity',
    'ankleVelocity',
    'spineVelocity',
    'rotationalVelocity'
  ],
  position: [
    'footPosition',
    'releasePosition',
    'approachPosition',
    'balancePosition',
    'headPosition',
    'shoulderPosition',
    'hipPosition',
    'kneePosition',
    'wristPosition',
    'elbowPosition'
  ],
  acceleration: [
    'armAcceleration',
    'shoulderAcceleration',
    'hipAcceleration',
    'legAcceleration',
    'wristAcceleration',
    'elbowAcceleration',
    'torsoAcceleration',
    'headAcceleration',
    'ankleAcceleration',
    'spineAcceleration'
  ],
  balance: [
    'stabilityIndex',
    'weightDistribution',
    'centerOfMass',
    'posturalSway',
    'lateralBalance',
    'anteriorBalance',
    'dynamicStability'
  ],
  power: [
    'powerGeneration',
    'energyTransfer',
    'kineticEnergy',
    'potentialEnergy',
    'workDone',
    'powerEfficiency',
    'totalEnergy',
    'momentum',
    'impulse'
  ]
};

/**
 * Phase two metrics are calculated from phase one metrics
 */
const PHASE_TWO_METRICS = {
  timing: [
    'approachTiming',
    'releaseTiming',
    'followThroughTiming',
    'totalDeliveryTime',
    'backswingTime',
    'forwardSwingTime',
    'releaseToFollowThroughTime'
  ],
  consistency: [
    'approachConsistency',
    'releaseConsistency',
    'angleConsistency',
    'velocityConsistency',
    'positionConsistency',
    'timingConsistency',
    'overallConsistency'
  ],
  efficiency: [
    'energyEfficiency',
    'movementEfficiency',
    'powerTransfer',
    'momentumConservation',
    'kinematicChain',
    'overallEfficiency'
  ]
};

/**
 * Phase three metrics are calculated from phase one and two metrics
 */
const PHASE_THREE_METRICS = {
  performance: [
    'overallPerformance',
    'techniqueScore',
    'efficiencyScore',
    'consistencyScore',
    'powerScore',
    'balanceScore',
    'timingScore'
  ],
  recommendations: [
    'techniqueRecommendations',
    'efficiencyRecommendations',
    'consistencyRecommendations',
    'powerRecommendations',
    'balanceRecommendations',
    'timingRecommendations'
  ]
};

module.exports = {
  PHASE_ONE_METRICS,
  PHASE_TWO_METRICS,
  PHASE_THREE_METRICS
};