Mercurial Hosting > traffic-intelligence
annotate trajectorymanagement/src/MinimumMetric.h @ 1257:e59a0a475a0a
removed bug with unnecessary data
author | Nicolas Saunier <nicolas.saunier@polymtl.ca> |
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date | Wed, 03 Apr 2024 16:39:41 -0400 |
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1 #ifndef MINIMUMMETRIC_H_ |
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2 #define MINIMUMMETRIC_H_ |
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3 |
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4 #include "Metric.h" |
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5 |
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6 #include "TrajectoryExceptions.h" |
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7 |
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8 /** |
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9 * MinimumMetric class. |
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10 * |
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11 * The Minimum metric measures the similarity between two trajectories. |
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12 * This class represents the smallest distance all 3 dimensions, for ALL points. |
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13 * |
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14 */ |
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15 template<typename Tr, typename To> |
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16 class MinimumMetric: public Metric<Tr, To> |
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17 { |
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18 public: |
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19 /** |
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20 * Compute similarity between two trajectories. |
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21 * |
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22 * @param[in] a input trajectory |
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23 * @param[in] b input trajectory |
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24 * @param[out] result distance between two trajectories |
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25 */ |
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26 void distance(const Trajectory<Tr> *a, const Trajectory<Tr> *b, To &result, unsigned int nbOfPoints = std::numeric_limits<unsigned int>::max()) |
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27 { |
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28 result = To(0); |
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29 |
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30 if (nbOfPoints == std::numeric_limits<unsigned int>::max()) |
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31 checkTrajectoryLength(a->size(), b->size()); |
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32 |
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33 To diff = abs((a->getPoint(0) - b->getPoint(0)).x);//est-ce que ça fait vraiment une différence de x ? |
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34 for (unsigned int i = 0; i < a->size() and i < nbOfPoints; ++i) |
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35 { |
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36 cv::Point3_<typeof(static_cast<Tr>(a->getPoint(i)).x)> p(a->getPoint(i) - b->getPoint(i)); |
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37 diff = std::min(diff, abs(p.x)); |
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38 diff = std::min(diff, abs(p.y)); |
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39 if (dim(a->getPoint(i)) == 3) |
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40 { |
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41 diff = std::min(diff, abs(p.z)); |
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42 } |
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43 } |
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44 |
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45 result = diff; |
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46 } |
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47 |
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48 private: |
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49 /** |
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50 * Check the length of the trajectories. |
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51 * |
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52 * @param[in] a the size of the trajectory |
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53 * @param[in] b the size of the trajectory |
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54 */ |
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55 void checkTrajectoryLength(size_t a, size_t b) const |
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56 { |
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57 if (a != b || a == 0) |
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58 { |
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59 throw TrajectoryLengthErrorException(); |
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60 } |
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61 } |
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62 }; |
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63 |
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64 #endif /* MINIMUMMETRIC_H_ */ |