Mercurial Hosting > traffic-intelligence
annotate python/metadata.py @ 863:a8ca72dc1564
work on user detectors
author | Nicolas Saunier <nicolas.saunier@polymtl.ca> |
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date | Tue, 08 Nov 2016 17:59:40 -0500 |
parents | 2d6249fe905a |
children | 5afa1d30edd8 |
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1 # from moving import Point |
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2 |
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3 from datetime import datetime, timedelta |
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4 from os import path |
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5 from math import floor |
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6 |
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7 from numpy import zeros, loadtxt, array |
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8 |
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9 from sqlalchemy import orm, create_engine, Column, Integer, Float, DateTime, String, ForeignKey, Boolean, Interval |
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10 from sqlalchemy.orm import relationship, backref, sessionmaker |
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11 from sqlalchemy.ext.declarative import declarative_base |
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12 |
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13 from utils import datetimeFormat, removeExtension |
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14 from cvutils import computeUndistortMaps |
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15 from moving import TimeInterval |
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16 |
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17 Base = declarative_base() |
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18 |
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19 class Site(Base): |
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20 __tablename__ = 'sites' |
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21 idx = Column(Integer, primary_key=True) |
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22 name = Column(String) # same as path, relative to the database position |
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23 description = Column(String) # longer names, eg intersection of road1 and road2 |
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24 xcoordinate = Column(Float) # ideally moving.Point, but needs to be |
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25 ycoordinate = Column(Float) |
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26 mapImageFilename = Column(String) # path to filename, relative to site name, ie sitename/mapImageFilename |
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27 nUnitsPerPixel = Column(Float) # number of units of distance per pixel in map image |
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28 worldDistanceUnit = Column(String, default = 'm') # make sure it is default in the database |
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29 |
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30 def __init__(self, name, description = "", xcoordinate = None, ycoordinate = None, mapImageFilename = None, nUnitsPerPixel = 1., worldDistanceUnit = 'm'): |
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31 self.name = name |
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32 self.description = description |
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33 self.xcoordinate = xcoordinate |
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34 self.ycoordinate = ycoordinate |
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35 self.mapImageFilename = mapImageFilename |
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36 self.nUnitsPerPixel = nUnitsPerPixel |
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37 self.worldDistanceUnit = worldDistanceUnit |
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38 |
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39 def getFilename(self): |
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40 return self.name |
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42 @staticmethod |
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43 def getSite(session, siteId): |
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44 'Returns the site(s) matching the index or the name' |
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45 if str.isdigit(siteId): |
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46 return session.query(Site).filter(Site.idx == int(siteId)).all() |
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47 else: |
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48 return session.query(Site).filter(Site.description.like('%'+siteId+'%')).all() |
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49 |
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50 |
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51 class EnvironementalFactors(Base): |
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52 '''Represents any environmental factors that may affect the results, in particular |
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53 * changing weather conditions |
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54 * changing road configuration, geometry, signalization, etc. |
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55 ex: sunny, rainy, before counter-measure, after counter-measure''' |
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56 __tablename__ = 'environmental_factors' |
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57 idx = Column(Integer, primary_key=True) |
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58 startTime = Column(DateTime) |
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59 endTime = Column(DateTime) |
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60 description = Column(String) # eg sunny, before, after |
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61 siteIdx = Column(Integer, ForeignKey('sites.idx')) |
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62 |
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63 site = relationship("Site", backref=backref('environmental_factors', order_by = idx)) |
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64 |
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65 def __init__(self, startTime, endTime, description, site): |
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66 'startTime is passed as string in utils.datetimeFormat, eg 2011-06-22 10:00:39' |
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67 self.startTime = datetime.strptime(startTime, datetimeFormat) |
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68 self.endTime = datetime.strptime(endTime, datetimeFormat) |
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69 self.description = description |
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70 self.site = site |
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71 |
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72 class CameraType(Base): |
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73 ''' Represents parameters of the specific camera used. |
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74 |
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75 Taken and adapted from tvalib''' |
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76 __tablename__ = 'camera_types' |
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77 idx = Column(Integer, primary_key=True) |
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78 name = Column(String) |
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79 resX = Column(Integer) |
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80 resY = Column(Integer) |
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81 frameRate = Column(Float) |
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82 frameRateTimeUnit = Column(String, default = 's') |
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83 intrinsicCameraMatrixStr = Column(String) |
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84 distortionCoefficientsStr = Column(String) |
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85 undistortedImageMultiplication = Column(Float) |
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86 |
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87 def __init__(self, name, resX, resY, frameRate, frameRateTimeUnit = 's', trackingConfigurationFilename = None, intrinsicCameraFilename = None, intrinsicCameraMatrix = None, distortionCoefficients = None, undistortedImageMultiplication = None): |
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88 self.name = name |
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89 self.resX = resX |
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90 self.resY = resY |
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91 self.frameRate = frameRate |
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92 self.frameRateTimeUnit = frameRateTimeUnit |
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93 self.intrinsicCameraMatrix = None # should be np.array |
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94 self.distortionCoefficients = None # list |
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95 |
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96 if trackingConfigurationFilename is not None: |
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97 from storage import ProcessParameters |
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98 params = ProcessParameters(trackingConfigurationFilename) |
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99 self.intrinsicCameraMatrix = params.intrinsicCameraMatrix |
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100 self.distortionCoefficients = params.distortionCoefficients |
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101 self.undistortedImageMultiplication = params.undistortedImageMultiplication |
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102 elif intrinsicCameraFilename is not None: |
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103 self.intrinsicCameraMatrix = loadtxt(intrinsicCameraFilename) |
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104 self.distortionCoefficients = distortionCoefficients |
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105 self.undistortedImageMultiplication = undistortedImageMultiplication |
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106 else: |
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107 self.intrinsicCameraMatrix = intrinsicCameraMatrix |
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108 self.distortionCoefficients = distortionCoefficients |
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109 self.undistortedImageMultiplication = undistortedImageMultiplication |
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110 |
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111 if self.intrinsicCameraMatrix is not None: |
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112 self.intrinsicCameraMatrixStr = '{}'.format(self.intrinsicCameraMatrix.tolist()) |
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113 if self.distortionCoefficients is not None and len(self.distortionCoefficients) == 5: |
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114 self.distortionCoefficientsStr = '{}'.format(self.distortionCoefficients) |
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115 |
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116 @orm.reconstructor |
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117 def initOnLoad(self): |
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118 if self.intrinsicCameraMatrixStr is not None: |
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119 from ast import literal_eval |
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120 self.intrinsicCameraMatrix = array(literal_eval(self.intrinsicCameraMatrixStr)) |
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121 else: |
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122 self.intrinsicCameraMatrix = None |
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123 if self.distortionCoefficientsStr is not None: |
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124 self.distortionCoefficients = literal_eval(self.distortionCoefficientsStr) |
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125 else: |
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126 self.distortionCoefficients = None |
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127 |
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128 def computeUndistortMaps(self): |
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129 if self.undistortedImageMultiplication is not None and self.intrinsicCameraMatrix is not None and self.distortionCoefficients is not None: |
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130 self.map1, self.map2 = computeUndistortMaps(self.resX, self.resY, self.undistortedImageMultiplication, self.intrinsicCameraMatrix, self.distortionCoefficients) |
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131 else: |
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132 self.map1 = None |
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133 self.map2 = None |
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134 |
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135 @staticmethod |
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136 def getCameraType(session, cameraTypeId, resX = None): |
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137 'Returns the site(s) matching the index or the name' |
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138 if str.isdigit(cameraTypeId): |
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139 return session.query(CameraType).filter(CameraType.idx == int(cameraTypeId)).all() |
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140 else: |
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141 if resX is not None: |
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142 return session.query(CameraType).filter(CameraType.name.like('%'+cameraTypeId+'%')).filter(CameraType.resX == resX).all() |
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143 else: |
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144 return session.query(CameraType).filter(CameraType.name.like('%'+cameraTypeId+'%')).all() |
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145 |
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146 class CameraView(Base): |
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147 __tablename__ = 'camera_views' |
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148 idx = Column(Integer, primary_key=True) |
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149 description = Column(String) |
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150 homographyFilename = Column(String) # path to homograph filename, relative to the site name |
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151 siteIdx = Column(Integer, ForeignKey('sites.idx')) |
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152 cameraTypeIdx = Column(Integer, ForeignKey('camera_types.idx')) |
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153 trackingConfigurationFilename = Column(String) # path to configuration .cfg file, relative to site name |
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154 maskFilename = Column(String) # path to mask file, relative to site name |
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155 virtual = Column(Boolean) # indicates it is not a real camera view, eg merged |
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156 |
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157 site = relationship("Site", backref=backref('sites', order_by = idx)) |
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158 cameraType = relationship('CameraType', backref=backref('camera_views', order_by = idx)) |
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159 |
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160 def __init__(self, description, homographyFilename, site, cameraType, trackingConfigurationFilename, maskFilename, virtual = False): |
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161 self.description = description |
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162 self.homographyFilename = homographyFilename |
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163 self.site = site |
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164 self.cameraType = cameraType |
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165 self.trackingConfigurationFilename = trackingConfigurationFilename |
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166 self.maskFilename = maskFilename |
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167 self.virtual = virtual |
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168 |
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169 def getHomographyFilename(self, relativeToSiteFilename = True): |
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170 if relativeToSiteFilename: |
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171 return self.site.getFilename()+path.sep+self.homographyFilename |
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172 else: |
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173 return self.homographyFilename |
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174 |
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175 def getTrackingConfigurationFilename(self, relativeToSiteFilename = True): |
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176 if relativeToSiteFilename: |
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177 return self.site.getFilename()+path.sep+self.trackingConfigurationFilename |
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178 else: |
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179 return self.trackingConfigurationFilename |
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180 |
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181 def getMaskFilename(self, relativeToSiteFilename = True): |
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182 if relativeToSiteFilename: |
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183 return self.site.getFilename()+path.sep+self.maskFilename |
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184 else: |
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185 return self.maskFilename |
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186 |
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187 def getTrackingParameters(self): |
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188 return ProcessParameters(self.getTrackingConfigurationFilename()) |
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189 |
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190 def getHomographyDistanceUnit(self): |
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191 return self.site.worldDistanceUnit |
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192 |
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193 class Alignment(Base): |
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194 __tablename__ = 'alignments' |
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195 idx = Column(Integer, primary_key=True) |
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196 cameraViewIdx = Column(Integer, ForeignKey('camera_views.idx')) |
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197 |
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198 cameraView = relationship("CameraView", backref=backref('alignments', order_by = idx)) |
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199 |
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200 def __init__(self, cameraView): |
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201 self.cameraView = cameraView |
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202 |
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203 class Point(Base): |
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204 __tablename__ = 'points' |
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205 alignmentIdx = Column(Integer, ForeignKey('alignments.idx'), primary_key=True) |
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206 index = Column(Integer, primary_key=True) # order of points in this alignment |
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207 x = Column(Float) |
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208 y = Column(Float) |
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209 |
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210 alignment = relationship("Alignment", backref=backref('points', order_by = index)) |
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211 |
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212 def __init__(self, alignmentIdx, index, x, y): |
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213 self.alignmentIdx = alignmentIdx |
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214 self.index = index |
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215 self.x = x |
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216 self.y = y |
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217 |
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218 class VideoSequence(Base): |
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219 __tablename__ = 'video_sequences' |
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220 idx = Column(Integer, primary_key=True) |
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221 name = Column(String) # path relative to the the site name |
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222 startTime = Column(DateTime) |
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223 duration = Column(Interval) # video sequence duration |
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224 databaseFilename = Column(String) # path relative to the the site name |
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225 virtual = Column(Boolean) # indicates it is not a real video sequence (no video file), eg merged |
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226 cameraViewIdx = Column(Integer, ForeignKey('camera_views.idx')) |
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227 |
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228 cameraView = relationship("CameraView", backref=backref('video_sequences', order_by = idx)) |
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229 |
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230 def __init__(self, name, startTime, duration, cameraView, databaseFilename = None, virtual = False): |
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231 '''startTime is passed as string in utils.datetimeFormat, eg 2011-06-22 10:00:39 |
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232 duration is a timedelta object''' |
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233 self.name = name |
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234 if isinstance(startTime, str): |
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235 self.startTime = datetime.strptime(startTime, datetimeFormat) |
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236 else: |
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237 self.startTime = startTime |
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238 self.duration = duration |
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239 self.cameraView = cameraView |
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240 if databaseFilename is None and len(self.name) > 0: |
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241 self.databaseFilename = removeExtension(self.name)+'.sqlite' |
846 | 242 else: |
243 self.databaseFilename = databaseFilename | |
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244 self.virtual = virtual |
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245 |
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246 def getVideoSequenceFilename(self, relativeToSiteFilename = True): |
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247 if relativeToSiteFilename: |
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248 return self.cameraView.site.getFilename()+path.sep+self.name |
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249 else: |
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250 return self.name |
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251 |
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252 def getDatabaseFilename(self, relativeToSiteFilename = True): |
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253 if relativeToSiteFilename: |
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254 return self.cameraView.site.getFilename()+path.sep+self.databaseFilename |
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255 else: |
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256 return self.databaseFilename |
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257 |
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258 def getTimeInterval(self): |
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259 return TimeInterval(self.startTime, self.startTime+self.duration) |
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260 |
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261 def containsInstant(self, instant): |
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262 'instant is a datetime' |
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263 return self.startTime <= instant and self.startTime+self.duration |
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264 |
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265 def intersection(self, startTime, endTime): |
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266 'returns the moving.TimeInterval intersection with [startTime, endTime]' |
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267 return TimeInterval.intersection(self.getTimeInterval(), TimeInterval(startTime, endTime)) |
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268 |
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269 def getFrameNum(self, instant): |
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270 'Warning, there is no check of correct time units' |
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271 if self.containsInstant(instant): |
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272 return int(floor((instant-self.startTime).seconds*self.cameraView.cameraType.frameRate)) |
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273 else: |
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274 return None |
424 | 275 |
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276 # add class for Analysis: foreign key VideoSequenceId, dataFilename, configFilename (get the one from camera view by default), mask? (no, can be referenced in the tracking cfg file) |
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277 |
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278 # class SiteDescription(Base): # list of lines and polygons describing the site, eg for sidewalks, center lines |
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279 |
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280 # class Analysis(Base): # parameters necessary for processing the data: free form |
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281 # eg bounding box depends on camera view, tracking configuration depends on camera view |
424 | 282 # results: sqlite |
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283 |
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284 def createDatabase(filename): |
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285 'creates a session to query the filename' |
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286 engine = create_engine('sqlite:///'+filename) |
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287 Base.metadata.create_all(engine) |
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288 Session = sessionmaker(bind=engine) |
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289 return Session() |
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290 |
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291 def connectDatabase(filename): |
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292 'creates a session to query the filename' |
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293 engine = create_engine('sqlite:///'+filename) |
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294 Session = sessionmaker(bind=engine) |
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295 return Session() |
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296 |
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297 def initializeSites(session, directoryName): |
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298 '''Initializes default site objects and Camera Views |
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299 |
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300 eg somedirectory/montreal/ contains intersection1, intersection2, etc. |
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301 The site names would be somedirectory/montreal/intersection1, somedirectory/montreal/intersection2, etc.''' |
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302 from os import listdir, path |
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303 sites = [] |
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304 cameraViews = [] |
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305 names = listdir(directoryName) |
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306 for name in names: |
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307 if path.isdir(directoryName+'/'+name): |
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308 sites.append(Site(directoryName+'/'+name, None)) |
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309 cameraViews.append(CameraView(-1, None, None, sites[-1], None)) |
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310 session.add_all(sites) |
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311 session.add_all(cameraViews) |
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312 session.commit() |
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313 # TODO crawler for video files? |