CAS-PEAL Database

This is the Bob database entry for the CAS-PEAL database.

class bob.db.caspeal.Database(original_directory=None, original_extension='.tif')

Bases: bob.db.base.SQLiteDatabase

The database 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 a list of groups for the given protocol

Keyword Parameters:

protocol

Ignored since groups are identical for all protocols.

Returns: a list of groups

clients(groups=None, genders=None, ages=None, protocol=None)

Returns a list of Client objects for the specific query by the user.

Keyword Parameters:

groups

One or several groups to which the models belong (‘world’, ‘dev’). If not specified, all groups are returned.

genders

One or several of the genders (‘F’, ‘M’) of the clients. If not specified, clients of all genders are returned.

ages

One or several of the age ranges (‘Y’, ‘M’, ‘O’) of the clients. If not specified, clients of all age ranges are returned.

protocol

Ignored since clients are identical for all protocols.

Returns: A list containing all the Client objects which have the desired properties.

client_ids(groups=None, genders=None, ages=None, protocol=None)

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

Keyword Parameters:

groups

One or several groups to which the models belong (‘world’, ‘dev’, ‘eval’). If not specified, all groups are returned.

genders

One of the genders (‘m’, ‘w’) of the clients. If not specified, clients of all genders are returned.

ages

One or several of the age ranges (‘Y’, ‘M’, ‘O’) of the clients. If not specified, clients of all age ranges are returned.

protocol

Ignored since clients are identical for all protocols.

Returns: A list containing all the client ids which have the desired properties.

model_ids(groups=None, genders=None, ages=None, protocol=None)

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

Keyword Parameters:

groups

One or several groups to which the models belong (‘world’, ‘dev’, ‘eval’). If not specified, all groups are returned.

genders

One of the genders (‘m’, ‘w’) of the clients. If not specified, clients of all genders are returned.

ages

One or several of the age ranges (‘Y’, ‘M’, ‘O’) of the clients. If not specified, clients of all age ranges are returned.

protocol

Ignored since clients are identical for all protocols.

Returns: A list containing all the client ids which have the desired properties.

get_client_id_from_file_id(file_id, **kwargs)

Returns the client_id attached to the given file_id

Keyword Parameters:

file_id

The file_id to consider

Returns: The client_id attached to the given file_id

get_client_id_from_model_id(model_id)

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(groups=None, protocol=None, purposes=None, model_ids=None, genders=None, ages=None, lightings=None, poses=None, expressions=None, accessories=None, distances=None, sessions=None, backgrounds=None)

Using the specified restrictions, this function returns a list of File objects.

Note that in rare cases, File objects with the same path, but different ID’s might be returned. This is due to the fact that some images are in both the training list and in one of the gallery or probe lists.

Note further that the training set consists only of files with frontal pose (‘M+00’).

Keyword Parameters:

groups

One or several groups to which the models belong (‘world’, ‘dev’).

protocol

One of the CAS-PEAL protocols (‘accessory’, ‘aging’, ‘background’, ‘distance’, ‘expression’, ‘lighting’, ‘pose’). Note: this field is ignored for group ‘world’. Note: this field is ignored for purpose ‘enroll’.

purposes

One or several purposes for which files should be retrieved (‘enroll’, ‘probe’). Note: this field is ignored for group ‘world’.

model_ids

If given (as a list of model id’s or a single one), only the files belonging to the specified model id is returned. For ‘probe’ purposes, this field is ignored since probe files are identical for all models.

genders

One or several of the genders (‘F’, ‘M’) of the clients. If not specified, objects of all genders are returned.

ages

One or several of the age ranges (‘Y’, ‘M’, ‘O’) of the clients. If not specified, objects of all age ranges are returned.

lightings

One or several of the possible lightings (e.g. ‘EU+00’ or ‘FM-45’). If not specified, objects of all lightings will be returned. Note: this field is ignored for purpose ‘enroll’.

poses

One or several of the possible poses (e.g. ‘M+00’, ‘U-67’). If not specified, objects of all poses are returned. Note: this field is ignored for purpose ‘enroll’. Note: for group ‘world’, only pose ‘M+00’ is available.

expressions

One or several expressions from (‘N’, ‘L’, ‘F’, ‘S’, ‘C’, ‘O’). If not specified, objects of all expressions are returned. Note: this field is ignored for purpose ‘enroll’.

accessories

One or several accessories from (0, 1, 2, 3, 4, 5, 6). If not specified, objects of all accessories are returned. Note: this field is ignored for purpose ‘enroll’.

distances

One or several distances from (0, 1, 2). If not specified, objects of all distances are returned. Note: this field is ignored for purpose ‘enroll’.

sessions

One or several sessions from (0, 1, 2). If not specified, objects of all sessions are returned. Note: this field is ignored for purpose ‘enroll’.

backgrounds

One or several backgrounds from (‘B’, ‘R’, ‘D’, ‘Y’, ‘W’). If not specified, objects of all backgrounds are returned. Note: this field is ignored for purpose ‘enroll’.

annotations(file)

Returns the annotations for the given file id 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

class bob.db.caspeal.Client(client_type, client_id)

Bases: sqlalchemy.ext.declarative.api.Base

Information about the clients (identities) of the CAS-PEAL database

gender_choices = ('F', 'M')

age_choices = ('Y', 'M', 'O')

id

gender

age

class bob.db.caspeal.File(image_path, protocol)

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

Information about the files of the CAS-PEAL face database. Each file includes

• the session

• the expression

• the pose

• the lighting

• the camera distance

• the accessory

• the background

• a privacy field describing whether the image file might be published in papers

• the client id

• the path

itertools = <module 'itertools' (built-in)>

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

lighting_type_choices = ('E', 'F', 'L')

elevation_choices = ('U', 'M', 'D')

lighting_azimuth_choices = ('-90', '-45', '+00', '+45', '+90')

pose_azimuth_choices = ('-90', '-67', '-45', '-30', '-22', '-15', '+00', '+15', '+22', '+30', '+45', '+67', '+90')

expression_choices = ('N', 'L', 'F', 'S', 'C', 'O')

distance_choices = [0, 1, 2]

accessory_choices = [0, 1, 2, 3, 4, 5, 6]

session_choices = [0, 1, 2]

background_choices = ('B', 'R', 'D', 'Y', 'W')

lighting_choices = ['EU-90', 'EU-45', 'EU+00', 'EU+45', 'EU+90', 'EM-90', 'EM-45', 'EM+00', 'EM+45', 'EM+90', 'ED-90', 'ED-45', 'ED+00', 'ED+45', 'ED+90', 'FU-90', 'FU-45', 'FU+00', 'FU+45', 'FU+90', 'FM-90', 'FM-45', 'FM+00', 'FM+45', 'FM+90', 'FD-90', 'FD-45', 'FD+00', 'FD+45', 'FD+90', 'LU-90', 'LU-45', 'LU+00', 'LU+45', 'LU+90', 'LM-90', 'LM-45', 'LM+00', 'LM+45', 'LM+90', 'LD-90', 'LD-45', 'LD+00', 'LD+45', 'LD+90']

pose_choices = ['U-90', 'U-67', 'U-45', 'U-30', 'U-22', 'U-15', 'U+00', 'U+15', 'U+22', 'U+30', 'U+45', 'U+67', 'U+90', 'M-90', 'M-67', 'M-45', 'M-30', 'M-22', 'M-15', 'M+00', 'M+15', 'M+22', 'M+30', 'M+45', 'M+67', 'M+90', 'D-90', 'D-67', 'D-45', 'D-30', 'D-22', 'D-15', 'D+00', 'D+15', 'D+22', 'D+30', 'D+45', 'D+67', 'D+90']

id

path

annotation

client

protocol

protocol_id

purpose

client_id

lighting

pose

expression

accessory

distance

session

background

privacy

lighting_type()

lighting_elevation()

lighting_azimuth()

pose_elevation()

pose_azimuth()

expression_type()

accessory_type()

background_type()

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

Bases: sqlalchemy.ext.declarative.api.Base

Annotations of the CAS-PEAL 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

class bob.db.caspeal.Protocol(name)

Bases: sqlalchemy.ext.declarative.api.Base

The probe protocols of the CAS-PEAL database. Training and enrollment is identical for all protocols of CAS-PEAL.

protocol_choices = ('training', 'gallery', 'accessory', 'aging', 'background', 'distance', 'expression', 'lighting', 'pose')

id

name

bob.db.caspeal.get_config()

Returns a string containing the configuration information.