Mercurial Hosting > traffic-intelligence
annotate scripts/display-synced-trajectories.py @ 856:e310577cc0b8
updated function (url) for weather data
author | Nicolas Saunier <nicolas.saunier@polymtl.ca> |
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date | Wed, 05 Oct 2016 13:31:42 -0400 |
parents | 75530d8c0090 |
children | 1fdafa9f6bf4 |
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1 #! /usr/bin/env python |
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2 |
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3 import sys, argparse, os.path |
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4 from datetime import datetime, timedelta |
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5 import numpy as np |
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6 import cv2 |
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7 import cvutils, utils, storage |
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8 from metadata import createDatabase, Site, CameraView, VideoSequence |
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9 |
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10 parser = argparse.ArgumentParser(description='The program displays several views of the same site synchronously.') |
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11 parser.add_argument('-i', dest = 'metadataFilename', help = 'name of the metadata file', required = True) |
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12 #parser.add_argument('-n', dest = 'siteId', help = 'site id or site name', required = True) |
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13 parser.add_argument('-d', dest = 'databaseFilename', help = 'name of the Sqlite database file', required = True) |
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14 parser.add_argument('-f', dest = 'startTime', help = 'time to start playing (format %%Y-%%m-%%d %%H:%%M:%%S, eg 2011-06-22 10:00:39)', required = True) |
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15 parser.add_argument('-t', dest = 'trajectoryType', help = 'type of trajectories to display', choices = ['feature', 'object'], default = 'object') |
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16 parser.add_argument('-r', dest = 'rescale', help = 'rescaling factor for the displayed image', default = 1., type = float) |
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17 parser.add_argument('-s', dest = 'step', help = 'display every s image', default = 1, type = int) |
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18 parser.add_argument('-u', dest = 'undistort', help = 'undistort the video (because features have been extracted that way)', action = 'store_true') |
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19 |
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20 args = parser.parse_args() |
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21 |
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22 session = createDatabase(args.metadataFilename) |
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23 |
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24 mergedSequence = session.query(VideoSequence).filter(VideoSequence.databaseFilename == args.databaseFilename).first() |
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25 if mergedSequence is None: |
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26 print('Video sequence {} was not found in {}. Exiting'.format(args.databaseFilename, args.metadataFilename)) |
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27 sys.exit() |
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28 |
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29 dirname = os.path.split(args.metadataFilename)[0] |
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30 |
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31 frameRate = mergedSequence.cameraView.cameraType.frameRate |
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32 startTime = datetime.strptime(args.startTime, utils.datetimeFormat) |
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33 mergedFirstFrameNum = utils.deltaFrames(mergedSequence.startTime, startTime, frameRate) |
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34 |
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35 cameraViews = session.query(CameraView).filter(CameraView.site == mergedSequence.cameraView.site).filter(CameraView.virtual == False).all() |
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36 videoSequences = session.query(VideoSequence).filter(VideoSequence.virtual == False).all() |
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37 #videoSequences.remove(mergedSequence) |
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38 videoSequences = [v for v in videoSequences if v.cameraView in cameraViews and (v.containsInstant(startTime) or v.startTime > startTime)] |
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39 filenames = [dirname+os.path.sep+v.getVideoSequenceFilename() for v in videoSequences] |
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40 firstFrameNums = [utils.deltaFrames(v.startTime, startTime, frameRate) for v in videoSequences] # use pos/neg first frame nums |
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41 windowNames = [v.cameraView.description for v in videoSequences] |
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42 |
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43 # homography and undistort |
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44 homographies = [np.linalg.inv(np.loadtxt(dirname+os.path.sep+v.cameraView.getHomographyFilename())) for v in videoSequences] |
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45 if args.undistort: |
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46 cameraTypes = set([cv.cameraType for cv in cameraViews]) |
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47 for cameraType in cameraTypes: |
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48 cameraType.computeUndistortMaps() |
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49 |
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50 objects = storage.loadTrajectoriesFromSqlite(dirname+os.path.sep+mergedSequence.getDatabaseFilename(), args.trajectoryType) |
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51 for obj in objects: |
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52 obj.projectedPositions = {} |
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53 |
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54 #def playVideo(filenames, windowNames = None, firstFrameNums = None, frameRate = -1, interactive = False, printFrames = True, text = None, rescale = 1., step = 1): |
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55 if len(filenames) == 0: |
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56 print('Empty filename list') |
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57 sys.exit() |
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58 |
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59 if windowNames is None: |
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60 windowNames = ['frame{}'.format(i) for i in xrange(len(filenames))] |
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61 #wait = 5 |
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62 #if rescale == 1.: |
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63 for windowName in windowNames: |
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64 cv2.namedWindow(windowName, cv2.WINDOW_NORMAL) |
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65 #if frameRate > 0: |
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66 # wait = int(round(1000./frameRate)) |
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67 #if interactive: |
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68 wait = 0 |
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69 rescale = 1. |
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70 captures = [cv2.VideoCapture(fn) for fn in filenames] |
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71 if np.array([cap.isOpened() for cap in captures]).all(): |
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72 key = -1 |
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73 ret = True |
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74 nFramesShown = 0 |
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75 for i in xrange(len(captures)): |
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76 if firstFrameNums[i] > 0: |
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77 captures[i].set(cv2.cv.CV_CAP_PROP_POS_FRAMES, firstFrameNums[i]) |
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78 while ret and not cvutils.quitKey(key): |
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79 rets = [] |
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80 images = [] |
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81 for i in xrange(len(captures)): |
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82 if firstFrameNums[i]+nFramesShown>=0: |
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83 ret, img = captures[i].read() |
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84 if ret and args.undistort: |
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85 img = cv2.remap(img, videoSequences[i].cameraView.cameraType.map1, videoSequences[i].cameraView.cameraType.map2, interpolation=cv2.INTER_LINEAR) |
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86 rets.append(ret) |
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87 images.append(img) |
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88 else: |
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89 rets.append(False) |
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90 images.append(None) |
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91 if np.array(rets).any(): |
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92 #if printFrames: |
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93 print('frame shown {0}'.format(nFramesShown)) |
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94 for i in xrange(len(filenames)): |
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95 if rets[i]:#firstFrameNums[i]+nFramesShown>=0: |
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96 for obj in objects: |
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97 if obj.existsAtInstant(mergedFirstFrameNum+nFramesShown): |
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98 #print obj.num, obj.timeInterval, mergedFirstFrameNum, nFramesShown |
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99 if i not in obj.projectedPositions: |
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100 if homographies[i] is not None: |
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101 obj.projectedPositions[i] = obj.positions.project(homographies[i]) |
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102 else: |
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103 obj.projectedPositions[i] = obj.positions |
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104 cvutils.cvPlot(images[i], obj.projectedPositions[i], cvutils.cvColors[obj.getNum()], int(mergedFirstFrameNum+nFramesShown)-obj.getFirstInstant()) |
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105 |
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106 #if text is not None: |
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107 # cv2.putText(images[i], text, (10,50), cv2.FONT_HERSHEY_PLAIN, 1, cvRed) |
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108 cvutils.cvImshow(windowNames[i], images[i], rescale) # cv2.imshow('frame', img) |
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109 key = cv2.waitKey(wait) |
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110 #if cvutils.saveKey(key): |
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111 # cv2.imwrite('image-{}.png'.format(frameNum), img) |
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112 nFramesShown += args.step |
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113 if args.step > 1: |
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114 for i in xrange(len(captures)): |
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115 if firstFrameNums[i]+nFramesShown >= 0: |
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116 captures[i].set(cv2.cv.CV_CAP_PROP_POS_FRAMES, firstFrameNums[i]+nFramesShown) |
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117 cv2.destroyAllWindows() |
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118 else: |
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119 print('Video captures for {} failed'.format(filenames)) |