Python API

The Biosecure database

class bob.db.biosecure.Database(original_directory=None, original_extension='.jpg')

Bases: bob.db.base.SQLiteDatabase

The dataset class opens and maintains a connection opened to the Database.

It provides many different ways to probe for the characteristics of the data and for the data itself inside the database.

groups(protocol=None)

Returns the names of all registered groups

clients(protocol=None, groups=None)

Returns a set of clients for the specific query by the user.

Keyword Parameters:

protocol

The protocol to consider (‘ca0’, ‘caf’, ‘wc’)

groups

The groups to which the clients belong (‘dev’, ‘eval’, ‘world’)

Returns: A list containing all the clients which have the given properties.

models(protocol=None, groups=None)

Returns a set of models for the specific query by the user.

Keyword Parameters:

protocol

The protocol to consider (‘ca0’, ‘caf’, ‘wc’)

groups

The groups to which the subjects attached to the models belong (‘dev’, ‘eval’, ‘world’)

Returns: A list containing all the models belonging to the given group.

model_ids(protocol=None, groups=None)

Returns a list of model ids for the specific query by the user.

Keyword Parameters:

protocol

The protocol to consider (‘ca0’, ‘caf’, ‘wc’)

groups

The groups to which the subjects attached to the models belong (‘dev’, ‘eval’, ‘world’)

Returns: A list containing the ids of all models belonging to the given group.

has_client_id(id)

Returns True if we have a client with a certain integer identifier

client(id)

Returns the client object in the database given a certain id. Raises an error if that does not exist.

get_client_id_from_model_id(model_id, **kwargs)

Returns the client_id attached to the given model_id

Keyword Parameters:

model_id

The model_id to consider

Returns: The client_id attached to the given model_id

objects(protocol=None, purposes=None, model_ids=None, groups=None, classes=None)

Returns a set of filenames for the specific query by the user. WARNING: Files used as impostor access for several different models are only listed one and refer to only a single model

Keyword Parameters:

protocol

One of the Biosecure protocols (‘ca0’, ‘caf’, ‘wc’).

purposes

The purposes required to be retrieved (‘enroll’, ‘probe’, ‘train’) or a tuple with several of them. If ‘None’ is given (this is the default), it is considered the same as a tuple with all possible values. This field is ignored for the data from the “world” group.

model_ids

Only retrieves the files for the provided list of model ids (claimed client id). The model ids are string. If ‘None’ is given (this is the default), no filter over the model_ids is performed.

groups

One of the groups (‘dev’, ‘eval’, ‘world’) or a tuple with several of them. If ‘None’ is given (this is the default), it is considered the same as a tuple with all possible values.

classes

The classes (types of accesses) to be retrieved (‘client’, ‘impostor’) or a tuple with several of them. If ‘None’ is given (this is the default), it is considered the same as a tuple with all possible values.

Returns: A list of files which have the given properties.

annotations(file)

Returns the annotations for the image with the given file id.

Keyword Parameters:

file

The File object to retrieve the annotations for.

Returns: the eye annotations as a dictionary {‘reye’:(y,x), ‘leye’:(y,x)}.

protocol_names()

Returns all registered protocol names

protocols()

Returns all registered protocols

has_protocol(name)

Tells if a certain protocol is available

protocol(name)

Returns the protocol object in the database given a certain name. Raises an error if that does not exist.

protocol_purposes()

Returns all registered protocol purposes

purposes()

Returns the list of allowed purposes

class bob.db.biosecure.Client(id, group)

Bases: sqlalchemy.ext.declarative.api.Base

Database clients, marked by an integer identifier and the group they belong to

group_choices = ('dev', 'eval', 'world')

id

sgroup

class bob.db.biosecure.File(client_id, path, session_id, camera, shot_id)

Bases: sqlalchemy.ext.declarative.api.Base, bob.db.base.File

Generic file container

id

path

camera_choices = ('ca0', 'caf', 'wc')

client

annotation

client_id

session_id

camera

shot_id

class bob.db.biosecure.Protocol(name)

Bases: sqlalchemy.ext.declarative.api.Base

Biosecure protocols

id

name

class bob.db.biosecure.ProtocolPurpose(protocol_id, sgroup, purpose)

Bases: sqlalchemy.ext.declarative.api.Base

Biosecure protocol purposes

id

group_choices = ('world', 'dev', 'eval')

purpose_choices = ('train', 'enroll', 'probe')

protocol

files

protocol_id

sgroup

purpose

class bob.db.biosecure.Annotation(file_id, eyes)

Bases: sqlalchemy.ext.declarative.api.Base

Annotations of the BioSecure database consists only of the left and right eye positions. There is exactly one annotation for each file.

id

file_id

re_x

re_y

le_x

le_y

bob.db.biosecure.get_config()

Returns a string containing the configuration information.