repo/traffic-intelligence: python/storage.py comparison

comparison python/storage.py @ 588:c5406edbcf12

added loading ground truth annotations (ground truth) from polytrack format

author	Nicolas Saunier <nicolas.saunier@polymtl.ca>
date	Fri, 05 Dec 2014 00:54:38 -0500
parents	cf578ba866da
children	5800a87f11ae 0954aaf28231

comparison

equal deleted inserted replaced

-:cf578ba866da
+:c5406edbcf12
 for tableName in tableNames:
 cursor.execute('DROP TABLE IF EXISTS '+tableName)
 except sqlite3.OperationalError as error:
 printDBError(error)
+# TODO: add test if database connection is open
 # IO to sqlite
 def writeTrajectoriesToSqlite(objects, outputFilename, trajectoryType, objectNumbers = -1):
 """
 This function writers trajectories to a specified sqlite file
 @param[in] objects -> a list of trajectories
 returns a moving object'''
 cursor = connection.cursor()
 try:
-trajectoryIdQuery = getTrajectoryIdQuery(objectNumbers, trajectoryType)
+idQuery = getTrajectoryIdQuery(objectNumbers, trajectoryType)
 if trajectoryType == 'feature':
-queryStatement = 'SELECT * from '+tableName+' '+trajectoryIdQuery+'ORDER BY trajectory_id, frame_number'
+queryStatement = 'SELECT * from '+tableName+' '+idQuery+'ORDER BY trajectory_id, frame_number'
 cursor.execute(queryStatement)
 logging.debug(queryStatement)
 elif trajectoryType == 'object':
-queryStatement = 'SELECT OF.object_id, P.frame_number, avg(P.x_coordinate), avg(P.y_coordinate) from '+tableName+' P, objects_features OF where P.trajectory_id = OF.trajectory_id '+objectIdQuery+'group by OF.object_id, P.frame_number ORDER BY OF.object_id, P.frame_number'
+queryStatement = 'SELECT OF.object_id, P.frame_number, avg(P.x_coordinate), avg(P.y_coordinate) from '+tableName+' P, objects_features OF where P.trajectory_id = OF.trajectory_id '+idQuery+'group by OF.object_id, P.frame_number ORDER BY OF.object_id, P.frame_number'
 cursor.execute(queryStatement)
 logging.debug(queryStatement)
-elif trajectoryType == 'bbtop' or trajectoryType == 'bbbottom':
+elif trajectoryType in ['bbtop', 'bbbottom']:
 if trajectoryType == 'bbtop':
 corner = 'top_left'
 elif trajectoryType == 'bbbottom':
 corner = 'bottom_right'
 queryStatement = 'SELECT object_id, frame_number, x_'+corner+', y_'+corner+' FROM '+tableName+' '+trajectoryIdQuery+'ORDER BY object_id, frame_number'
 obj = None
 objects = []
 for row in cursor:
 if row[0] != objId:
 objId = row[0]
-if obj != None:
+if obj != None and obj.length() == obj.positions.length():
 objects.append(obj)
+elif obj != None:
+print('Object {} is missing {} positions'.format(obj.getNum(), int(obj.length())-obj.positions.length()))
 obj = moving.MovingObject(row[0], timeInterval = moving.TimeInterval(row[1], row[1]), positions = moving.Trajectory([[row[2]],[row[3]]]))
 else:
 obj.timeInterval.last = row[1]
 obj.positions.addPositionXY(row[2],row[3])
-if obj:
+if obj != None and obj.length() == obj.positions.length():
 objects.append(obj)
+elif obj != None:
+print('Object {} is missing {} positions'.format(obj.getNum(), int(obj.length())-obj.positions.length()))
 return objects
+def loadUserTypesFromTable(cursor, trajectoryType, objectNumbers):
+objectIdQuery = getTrajectoryIdQuery(objectNumbers, trajectoryType)
+if objectIdQuery == '':
+cursor.execute('SELECT object_id, road_user_type from objects')
+else:
+cursor.execute('SELECT object_id, road_user_type from objects where '+objectIdQuery[7:])
+userTypes = {}
+for row in cursor:
+userTypes[row[0]] = row[1]
+return userTypes
 def loadTrajectoriesFromSqlite(filename, trajectoryType, objectNumbers = None):
 '''Loads the first objectNumbers objects or the indices in objectNumbers from the database'''
-connection = sqlite3.connect(filename) # add test if it open
+connection = sqlite3.connect(filename)
 objects = loadTrajectoriesFromTable(connection, 'positions', trajectoryType, objectNumbers)
 objectVelocities = loadTrajectoriesFromTable(connection, 'velocities', trajectoryType, objectNumbers)
 if len(objectVelocities) > 0:
 for obj in objects:
 obj.featureNumbers = featureNumbers[obj.getNum()]
 # load userType
-if objectIdQuery == '':
+userTypes = loadUserTypesFromTable(cursor, trajectoryType, objectNumbers)
-cursor.execute('SELECT object_id, road_user_type from objects')
-else:
-cursor.execute('SELECT object_id, road_user_type from objects where '+objectIdQuery[7:])
-userTypes = {}
-for row in cursor:
-userTypes[row[0]] = row[1]
 for obj in objects:
 obj.userType = userTypes[obj.getNum()]
 except sqlite3.OperationalError as error:
 printDBError(error)
-return []
+objects = []
 connection.close()
 return objects
+def loadGroundTruthFromSqlite(filename, gtType, gtNumbers = None):
+'Loads bounding box annotations (ground truth) from an SQLite '
+connection = sqlite3.connect(filename)
+gt = []
+if gtType == 'bb':
+topCorners = loadTrajectoriesFromTable(connection, 'bounding_boxes', 'bbtop', gtNumbers)
+bottomCorners = loadTrajectoriesFromTable(connection, 'bounding_boxes', 'bbbottom', gtNumbers)
+userTypes = loadUserTypesFromTable(connection.cursor(), 'object', gtNumbers) # string format is same as object
+for t, b in zip(topCorners, bottomCorners):
+num = t.getNum()
+if t.getNum() == b.getNum():
+annotation = moving.BBAnnotation(num, t.getTimeInterval(), t, b, userTypes[num])
+gt.append(annotation)
+else:
+print ('Unknown type of annotation {}'.format(gtType))
+connection.close()
+return gt
 def deleteFromSqlite(filename, dataType):
 'Deletes (drops) some tables in the filename depending on type of data'
 import os
 if os.path.isfile(filename):

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comparison python/storage.py @ 588:c5406edbcf12