Mercurial Hosting > traffic-intelligence
annotate trafficintelligence/processing.py @ 1058:16575ca4537d
work in progress
author | Nicolas Saunier <nicolas.saunier@polymtl.ca> |
---|---|
date | Tue, 10 Jul 2018 17:16:38 -0400 |
parents | 25db2383e7ae |
children | 862b55a87e63 |
rev | line source |
---|---|
246
583a2c4622f9
created new module for algorithms with function to extract speeds
Nicolas Saunier <nicolas.saunier@polymtl.ca>
parents:
diff
changeset
|
1 #! /usr/bin/env python |
583a2c4622f9
created new module for algorithms with function to extract speeds
Nicolas Saunier <nicolas.saunier@polymtl.ca>
parents:
diff
changeset
|
2 '''Algorithms to process trajectories and moving objects''' |
583a2c4622f9
created new module for algorithms with function to extract speeds
Nicolas Saunier <nicolas.saunier@polymtl.ca>
parents:
diff
changeset
|
3 |
583a2c4622f9
created new module for algorithms with function to extract speeds
Nicolas Saunier <nicolas.saunier@polymtl.ca>
parents:
diff
changeset
|
4 import numpy as np |
583a2c4622f9
created new module for algorithms with function to extract speeds
Nicolas Saunier <nicolas.saunier@polymtl.ca>
parents:
diff
changeset
|
5 |
1044
75a6ad604cc5
work on motion patterns
Nicolas Saunier <nicolas.saunier@polymtl.ca>
parents:
1029
diff
changeset
|
6 from trafficintelligence import ml |
246
583a2c4622f9
created new module for algorithms with function to extract speeds
Nicolas Saunier <nicolas.saunier@polymtl.ca>
parents:
diff
changeset
|
7 |
583a2c4622f9
created new module for algorithms with function to extract speeds
Nicolas Saunier <nicolas.saunier@polymtl.ca>
parents:
diff
changeset
|
8 def extractSpeeds(objects, zone): |
583a2c4622f9
created new module for algorithms with function to extract speeds
Nicolas Saunier <nicolas.saunier@polymtl.ca>
parents:
diff
changeset
|
9 speeds = {} |
583a2c4622f9
created new module for algorithms with function to extract speeds
Nicolas Saunier <nicolas.saunier@polymtl.ca>
parents:
diff
changeset
|
10 objectsNotInZone = [] |
583a2c4622f9
created new module for algorithms with function to extract speeds
Nicolas Saunier <nicolas.saunier@polymtl.ca>
parents:
diff
changeset
|
11 import matplotlib.nxutils as nx |
583a2c4622f9
created new module for algorithms with function to extract speeds
Nicolas Saunier <nicolas.saunier@polymtl.ca>
parents:
diff
changeset
|
12 for o in objects: |
583a2c4622f9
created new module for algorithms with function to extract speeds
Nicolas Saunier <nicolas.saunier@polymtl.ca>
parents:
diff
changeset
|
13 inPolygon = nx.points_inside_poly(o.getPositions().asArray().T, zone.T) |
583a2c4622f9
created new module for algorithms with function to extract speeds
Nicolas Saunier <nicolas.saunier@polymtl.ca>
parents:
diff
changeset
|
14 if inPolygon.any(): |
998
933670761a57
updated code to python 3 (tests pass and scripts run, but non-executed parts of code are probably still not correct)
Nicolas Saunier <nicolas.saunier@polymtl.ca>
parents:
665
diff
changeset
|
15 objspeeds = [o.getVelocityAt(i).norm2() for i in range(int(o.length()-1)) if inPolygon[i]] |
246
583a2c4622f9
created new module for algorithms with function to extract speeds
Nicolas Saunier <nicolas.saunier@polymtl.ca>
parents:
diff
changeset
|
16 speeds[o.num] = np.mean(objspeeds) # km/h |
583a2c4622f9
created new module for algorithms with function to extract speeds
Nicolas Saunier <nicolas.saunier@polymtl.ca>
parents:
diff
changeset
|
17 else: |
583a2c4622f9
created new module for algorithms with function to extract speeds
Nicolas Saunier <nicolas.saunier@polymtl.ca>
parents:
diff
changeset
|
18 objectsNotInZone.append(o) |
998
933670761a57
updated code to python 3 (tests pass and scripts run, but non-executed parts of code are probably still not correct)
Nicolas Saunier <nicolas.saunier@polymtl.ca>
parents:
665
diff
changeset
|
19 return speeds, objectsNotInZone |
1044
75a6ad604cc5
work on motion patterns
Nicolas Saunier <nicolas.saunier@polymtl.ca>
parents:
1029
diff
changeset
|
20 |
75a6ad604cc5
work on motion patterns
Nicolas Saunier <nicolas.saunier@polymtl.ca>
parents:
1029
diff
changeset
|
21 def learnAssignMotionPatterns(learn, assign, objects, similarities, minSimilarity, similarityFunc, minClusterSize = 0, optimizeCentroid = False, randomInitialization = False, removePrototypesAfterAssignment = False, initialPrototypes = []): |
75a6ad604cc5
work on motion patterns
Nicolas Saunier <nicolas.saunier@polymtl.ca>
parents:
1029
diff
changeset
|
22 '''Learns motion patterns |
75a6ad604cc5
work on motion patterns
Nicolas Saunier <nicolas.saunier@polymtl.ca>
parents:
1029
diff
changeset
|
23 |
75a6ad604cc5
work on motion patterns
Nicolas Saunier <nicolas.saunier@polymtl.ca>
parents:
1029
diff
changeset
|
24 During assignments, if using minClusterSize > 0, prototypes can change (be removed) |
75a6ad604cc5
work on motion patterns
Nicolas Saunier <nicolas.saunier@polymtl.ca>
parents:
1029
diff
changeset
|
25 The argument removePrototypesAfterAssignment indicates whether the prototypes are removed or not''' |
75a6ad604cc5
work on motion patterns
Nicolas Saunier <nicolas.saunier@polymtl.ca>
parents:
1029
diff
changeset
|
26 if len(initialPrototypes) > 0: |
75a6ad604cc5
work on motion patterns
Nicolas Saunier <nicolas.saunier@polymtl.ca>
parents:
1029
diff
changeset
|
27 initialPrototypeIndices = list(range(len(initialPrototypes))) |
75a6ad604cc5
work on motion patterns
Nicolas Saunier <nicolas.saunier@polymtl.ca>
parents:
1029
diff
changeset
|
28 trajectories = [p.getMovingObject().getPositions().asArray().T for p in initialPrototypes] |
75a6ad604cc5
work on motion patterns
Nicolas Saunier <nicolas.saunier@polymtl.ca>
parents:
1029
diff
changeset
|
29 else: |
75a6ad604cc5
work on motion patterns
Nicolas Saunier <nicolas.saunier@polymtl.ca>
parents:
1029
diff
changeset
|
30 initialPrototypeIndices = None |
75a6ad604cc5
work on motion patterns
Nicolas Saunier <nicolas.saunier@polymtl.ca>
parents:
1029
diff
changeset
|
31 trajectories = [] |
75a6ad604cc5
work on motion patterns
Nicolas Saunier <nicolas.saunier@polymtl.ca>
parents:
1029
diff
changeset
|
32 trajectories.extend([o.getPositions().asArray().T for o in objects]) |
75a6ad604cc5
work on motion patterns
Nicolas Saunier <nicolas.saunier@polymtl.ca>
parents:
1029
diff
changeset
|
33 |
75a6ad604cc5
work on motion patterns
Nicolas Saunier <nicolas.saunier@polymtl.ca>
parents:
1029
diff
changeset
|
34 if learn: |
75a6ad604cc5
work on motion patterns
Nicolas Saunier <nicolas.saunier@polymtl.ca>
parents:
1029
diff
changeset
|
35 prototypeIndices = ml.prototypeCluster(trajectories, similarities, minSimilarity, similarityFunc, optimizeCentroid, randomInitialization, initialPrototypeIndices) |
75a6ad604cc5
work on motion patterns
Nicolas Saunier <nicolas.saunier@polymtl.ca>
parents:
1029
diff
changeset
|
36 else: |
75a6ad604cc5
work on motion patterns
Nicolas Saunier <nicolas.saunier@polymtl.ca>
parents:
1029
diff
changeset
|
37 prototypeIndices = initialPrototypeIndices |
75a6ad604cc5
work on motion patterns
Nicolas Saunier <nicolas.saunier@polymtl.ca>
parents:
1029
diff
changeset
|
38 |
75a6ad604cc5
work on motion patterns
Nicolas Saunier <nicolas.saunier@polymtl.ca>
parents:
1029
diff
changeset
|
39 if assign: |
75a6ad604cc5
work on motion patterns
Nicolas Saunier <nicolas.saunier@polymtl.ca>
parents:
1029
diff
changeset
|
40 assignedPrototypeIndices, labels = ml.assignToPrototypeClusters(trajectories, prototypeIndices, similarities, minSimilarity, similarityFunc, minClusterSize) |
75a6ad604cc5
work on motion patterns
Nicolas Saunier <nicolas.saunier@polymtl.ca>
parents:
1029
diff
changeset
|
41 if minClusterSize > 0 and removePrototypesAfterAssignment: # use prototypeIndices anyway |
75a6ad604cc5
work on motion patterns
Nicolas Saunier <nicolas.saunier@polymtl.ca>
parents:
1029
diff
changeset
|
42 prototypeIndices = assignedPrototypeIndices |
75a6ad604cc5
work on motion patterns
Nicolas Saunier <nicolas.saunier@polymtl.ca>
parents:
1029
diff
changeset
|
43 else: |
1045
25db2383e7ae
work in progress on process.py
Nicolas Saunier <nicolas.saunier@polymtl.ca>
parents:
1044
diff
changeset
|
44 labels = None |
1044
75a6ad604cc5
work on motion patterns
Nicolas Saunier <nicolas.saunier@polymtl.ca>
parents:
1029
diff
changeset
|
45 |
75a6ad604cc5
work on motion patterns
Nicolas Saunier <nicolas.saunier@polymtl.ca>
parents:
1029
diff
changeset
|
46 return prototypeIndices, labels |
75a6ad604cc5
work on motion patterns
Nicolas Saunier <nicolas.saunier@polymtl.ca>
parents:
1029
diff
changeset
|
47 |