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1 /*
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2 * BayesianArrayStructure.h
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3 * midiCannamReader
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4 *
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5 * Created by Andrew on 17/07/2011.
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6 * Copyright 2011 QMUL. All rights reserved.
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7 *
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8 */
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9 #ifndef BAYESIAN_ARRAY_STRUCTURE
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10 #define BAYESIAN_ARRAY_STRUCTURE
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11
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12
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13 #include "ofMain.h"
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14 //#include "DynamicBayesianArray.h"
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15 #include "DynamicVector.h"
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16
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17 class BayesianArrayStructure {
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18
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19 public:
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20 // BayesianArrayStructure();
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21 BayesianArrayStructure();
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22 BayesianArrayStructure(int length);
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23
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24 void calculatePosterior();
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25 void drawArrays();
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26 void drawArraysRelativeToTimeframe(const double& startTimeMillis, const double& endTimeMillis);
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27
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28 void drawTempoArrays();
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29
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30 void resetSize(int length);
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31 void resetArrays();
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32 void simpleExample();
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33 void setStartPlaying();
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34 void zeroArrays();
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35
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36 double screenWidth;
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37
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38 void copyPriorToPosterior();
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39 // DynamicBayesianArray bayesArray;
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40
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41 double lastEventTime;
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42 double likelihoodNoise;
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43 double speedLikelihoodNoise;
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44
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45 DynamicVector tmpPrior;
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46 DynamicVector tmpPosteriorForStorage;
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47 DynamicVector prior;
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48 DynamicVector posterior;
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49 DynamicVector likelihood;
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50
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51 DynamicVector relativeSpeedPrior;
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52 DynamicVector relativeSpeedLikelihood;
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53 DynamicVector relativeSpeedPosterior;
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54 DynamicVector acceleration;
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55
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56 double tmpBestEstimate;
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57 void updateTmpBestEstimate(const double& timeDifference);
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58
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59 int updateCounter;
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60
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61 void setPositionDistributionScalar(double f);
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62
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63 void resetSpeedToOne();
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64 void addGaussianNoiseToSpeedPosterior(const double& std_dev);
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65 void addTriangularNoiseToSpeedPosterior(const double& std_dev);
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66
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67 double bestEstimate;
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68 void updateBestEstimate();
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69 double lastBestEstimateUpdateTime;
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70
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71 double speedDecayWidth, speedDecayAmount;
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72 void decaySpeedDistribution(double timeDifference);
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73
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74 void resetSpeedSize(int length);
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75 void setRelativeSpeedScalar(double f);
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76 void calculateNewPriorOffset(const double& timeDifference);
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77 void setNewDistributionOffsets(const double& newOffset);
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78
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79 void updateTempoDistribution(const double& speedRatio, const double& matchFactor);
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80
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81 void setFlatTempoLikelihood();
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82 void calculateTempoUpdate();
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83 void updateTempoLikelihood(const double& speedRatio, const double& matchFactor);
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84
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85 void crossUpdateArrays(DynamicVector& position, DynamicVector& speed, double timeDifference);
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86
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87 };
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88 #endif
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