Mercurial Hosting > traffic-intelligence

annotate trafficintelligence/processing.py @ 1212:af329f3330ba

Find changesets by keywords (author, files, the commit message), revision number or hash, or revset expression.
work in progress on 3D safety analysis
author Nicolas Saunier <nicolas.saunier@polymtl.ca>
date Tue, 02 May 2023 17:11:24 -0400
parents c67f8c36ebc7
children
Ignore whitespace changes - Everywhere: Within whitespace: At end of lines:
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
1066
862b55a87e63 work on extracting information
Nicolas Saunier <nicolas.saunier@polymtl.ca>
parents: 1045
diff changeset
6 from trafficintelligence import ml, storage, utils
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
1072
c67f8c36ebc7 interaction extraction
Nicolas Saunier <nicolas.saunier@polymtl.ca>
parents: 1067
diff changeset
21 def extractVideoSequenceSpeeds(dbFilename, siteName, nObjects, startTime, frameRate, minDuration, aggMethods, aggCentiles):
1066
862b55a87e63 work on extracting information
Nicolas Saunier <nicolas.saunier@polymtl.ca>
parents: 1045
diff changeset
22 data = []
862b55a87e63 work on extracting information
Nicolas Saunier <nicolas.saunier@polymtl.ca>
parents: 1045
diff changeset
23 d = startTime.date()
862b55a87e63 work on extracting information
Nicolas Saunier <nicolas.saunier@polymtl.ca>
parents: 1045
diff changeset
24 t1 = startTime.time()
862b55a87e63 work on extracting information
Nicolas Saunier <nicolas.saunier@polymtl.ca>
parents: 1045
diff changeset
25 print('Extracting speed from '+dbFilename)
1067
092bd9c7deaf corrected bug with multiprocessing and centiles
Nicolas Saunier <nicolas.saunier@polymtl.ca>
parents: 1066
diff changeset
26 aggFunctions, tmpheaders = utils.aggregationMethods(aggMethods, aggCentiles)
1066
862b55a87e63 work on extracting information
Nicolas Saunier <nicolas.saunier@polymtl.ca>
parents: 1045
diff changeset
27 objects = storage.loadTrajectoriesFromSqlite(dbFilename, 'object', nObjects)
862b55a87e63 work on extracting information
Nicolas Saunier <nicolas.saunier@polymtl.ca>
parents: 1045
diff changeset
28 for o in objects:
1072
c67f8c36ebc7 interaction extraction
Nicolas Saunier <nicolas.saunier@polymtl.ca>
parents: 1067
diff changeset
29 if o.length() > minDuration:
1066
862b55a87e63 work on extracting information
Nicolas Saunier <nicolas.saunier@polymtl.ca>
parents: 1045
diff changeset
30 row = [siteName, d, utils.framesToTime(o.getFirstInstant(), frameRate, t1), o.getUserType()]
862b55a87e63 work on extracting information
Nicolas Saunier <nicolas.saunier@polymtl.ca>
parents: 1045
diff changeset
31 tmp = o.getSpeeds()
862b55a87e63 work on extracting information
Nicolas Saunier <nicolas.saunier@polymtl.ca>
parents: 1045
diff changeset
32 for method,func in aggFunctions.items():
862b55a87e63 work on extracting information
Nicolas Saunier <nicolas.saunier@polymtl.ca>
parents: 1045
diff changeset
33 aggSpeeds = frameRate*3.6*func(tmp)
862b55a87e63 work on extracting information
Nicolas Saunier <nicolas.saunier@polymtl.ca>
parents: 1045
diff changeset
34 if method == 'centile':
1067
092bd9c7deaf corrected bug with multiprocessing and centiles
Nicolas Saunier <nicolas.saunier@polymtl.ca>
parents: 1066
diff changeset
35 row.extend(aggSpeeds.tolist())
1066
862b55a87e63 work on extracting information
Nicolas Saunier <nicolas.saunier@polymtl.ca>
parents: 1045
diff changeset
36 else:
862b55a87e63 work on extracting information
Nicolas Saunier <nicolas.saunier@polymtl.ca>
parents: 1045
diff changeset
37 row.append(aggSpeeds)
862b55a87e63 work on extracting information
Nicolas Saunier <nicolas.saunier@polymtl.ca>
parents: 1045
diff changeset
38 data.append(row)
862b55a87e63 work on extracting information
Nicolas Saunier <nicolas.saunier@polymtl.ca>
parents: 1045
diff changeset
39 return data
862b55a87e63 work on extracting information
Nicolas Saunier <nicolas.saunier@polymtl.ca>
parents: 1045
diff changeset
40
1044
75a6ad604cc5 work on motion patterns
Nicolas Saunier <nicolas.saunier@polymtl.ca>
parents: 1029
diff changeset
41 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
42 '''Learns motion patterns
75a6ad604cc5 work on motion patterns
Nicolas Saunier <nicolas.saunier@polymtl.ca>
parents: 1029
diff changeset
43
75a6ad604cc5 work on motion patterns
Nicolas Saunier <nicolas.saunier@polymtl.ca>
parents: 1029
diff changeset
44 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
45 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
46 if len(initialPrototypes) > 0:
75a6ad604cc5 work on motion patterns
Nicolas Saunier <nicolas.saunier@polymtl.ca>
parents: 1029
diff changeset
47 initialPrototypeIndices = list(range(len(initialPrototypes)))
75a6ad604cc5 work on motion patterns
Nicolas Saunier <nicolas.saunier@polymtl.ca>
parents: 1029
diff changeset
48 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
49 else:
75a6ad604cc5 work on motion patterns
Nicolas Saunier <nicolas.saunier@polymtl.ca>
parents: 1029
diff changeset
50 initialPrototypeIndices = None
75a6ad604cc5 work on motion patterns
Nicolas Saunier <nicolas.saunier@polymtl.ca>
parents: 1029
diff changeset
51 trajectories = []
75a6ad604cc5 work on motion patterns
Nicolas Saunier <nicolas.saunier@polymtl.ca>
parents: 1029
diff changeset
52 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
53
75a6ad604cc5 work on motion patterns
Nicolas Saunier <nicolas.saunier@polymtl.ca>
parents: 1029
diff changeset
54 if learn:
75a6ad604cc5 work on motion patterns
Nicolas Saunier <nicolas.saunier@polymtl.ca>
parents: 1029
diff changeset
55 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
56 else:
75a6ad604cc5 work on motion patterns
Nicolas Saunier <nicolas.saunier@polymtl.ca>
parents: 1029
diff changeset
57 prototypeIndices = initialPrototypeIndices
75a6ad604cc5 work on motion patterns
Nicolas Saunier <nicolas.saunier@polymtl.ca>
parents: 1029
diff changeset
58
75a6ad604cc5 work on motion patterns
Nicolas Saunier <nicolas.saunier@polymtl.ca>
parents: 1029
diff changeset
59 if assign:
75a6ad604cc5 work on motion patterns
Nicolas Saunier <nicolas.saunier@polymtl.ca>
parents: 1029
diff changeset
60 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
61 if minClusterSize > 0 and removePrototypesAfterAssignment: # use prototypeIndices anyway
75a6ad604cc5 work on motion patterns
Nicolas Saunier <nicolas.saunier@polymtl.ca>
parents: 1029
diff changeset
62 prototypeIndices = assignedPrototypeIndices
75a6ad604cc5 work on motion patterns
Nicolas Saunier <nicolas.saunier@polymtl.ca>
parents: 1029
diff changeset
63 else:
1045
25db2383e7ae work in progress on process.py
Nicolas Saunier <nicolas.saunier@polymtl.ca>
parents: 1044
diff changeset
64 labels = None
1044
75a6ad604cc5 work on motion patterns
Nicolas Saunier <nicolas.saunier@polymtl.ca>
parents: 1029
diff changeset
65
75a6ad604cc5 work on motion patterns
Nicolas Saunier <nicolas.saunier@polymtl.ca>
parents: 1029
diff changeset
66 return prototypeIndices, labels
75a6ad604cc5 work on motion patterns
Nicolas Saunier <nicolas.saunier@polymtl.ca>
parents: 1029
diff changeset
67