Method and apparatus for performing enrollment of 2D and 3D face biometrics
A device for performing enrollment of 2D and 3D face biometrics captures an image of a pattern projected on an object, such as a human face, and distorted on the 3D surface and an image of a two-dimensional (2D) surface of the object. These images can be used for identification and facial recognition of the object.
1 . A device for performing enrollment of an object's two-dimensional and three-dimensional face biometrics, the device comprising:
an illumination unit adapted to project patterned light on the object;
a first image capturing device adapted to capture an image of a pattern projected on the object and distorted on a three-dimensional surface; and
a second image capturing device adapted to capture an image of a two-dimensional view of the object.
2 . The device of claim 1 , wherein the illumination unit has a field of view, the first image capturing device has a field of view, and the second image capturing device has a field of view, further comprising:
a height-adjusting mechanism adapted to adjust height of the device so that the object is in the field of view of the illumination unit, in the field of view of the first image capturing device, and in the field of view of the second image capturing device.
3 . The device of claim 1 , wherein the second image capturing device is a color video camera adapted to capture an image of a two-dimensional view of the object consistent with an International Civil Aviation Organization (ICAO) standard.
4 . The device of claim 1 , wherein the second image capturing device is adapted to capture an image of a two-dimensional view of the object in visible light.
5 . The device of claim 1 , wherein the second image capturing device is a color photographic camera adapted to capture an image of a two-dimensional view of the object consistent with an International Civil Aviation Organization (ICAO) standard.
6 . The device of claim 1 , wherein the second image capturing device further comprises:
a sensor adapted to transform an optical signal received by the second image capturing device to an analog electrical signal;
a controller unit adapted to receive the analog electrical signal from the sensor and transform the signal into a composite TV signal; and
a filter adapted to enable the device to see the object in visible light.
7 . The device of claim 1 , wherein the first image capturing device adapted to capture an image of a pattern projected on the object and distorted on a three-dimensional surface and to capture an image of a two-dimensional view of the object.
8 . The device of claim 1 , wherein the first image capturing device is adapted to capture an image of a pattern projected on the object and distorted on the three-dimensional surface simultaneously with the second image capturing device adapted to capture an image of a two-dimensional view of the object.
9 . The device of claim 1 , wherein the first image capturing device is a grey scale video camera.
10 . The device of claim 1 , wherein the first image capturing device further comprises:
a sensor adapted to transform an optical signal received by the first image capturing device to an analog electrical signal;
a controller unit adapted to receive the analog electrical signal from the sensor and transform the signal into a composite TV signal; and
a filter adapted to enable the device to see the object in an invisible electromagnetic range.
11 . The device of claim 1 , wherein the first image capturing device is adapted to capture an image of a pattern projected on the object at the same electromagnetic wavelength that the illumination unit projects light onto the object.
12 . The device of claim 1 , further comprising:
a speaker's device adapted to convert an electrical signal into a sound;
a light source adapted to emit visible light; and
a controller board adapted to control the speaker's device and the light source.
13 . The device of claim 1 , wherein the illumination unit further comprises:
a transparency projected onto the object;
an illuminator adapted to optimize lighting projected on the transparency.
14 . The device of claim 13 , wherein the transparency includes aperiodic stripes.
15 . The device of claim 13 , wherein the transparency includes periodic stripes.
16 . The device of claim 2 , wherein the first image capturing device has an optical axis and wherein the device further comprises a first reflecting surface adapted to refract the optical axis of the first image capturing device to reduce dimension of the first image capturing device.
17 . The device of claim 2 , wherein the illumination unit has an optical axis and wherein the device further comprises a second reflecting surface adapted to refract the optical axis of the illumination unit to reduce dimension of the illumination unit.
18 . The device of claim 1 , wherein the second image capturing device has an optical axis and wherein the device further comprises a third reflecting surface adapted to refract the optical axis of the second image capturing device to reduce dimension of the second image capturing device.
19 . A device for performing enrollment of an object's two-dimensional and three-dimensional facial biometrics, the device comprising:
an illumination unit having a field of view and adapted to project patterned light on the object in invisible light;
a first image capturing device having a field of view and adapted to capture an image of a pattern projected on the object and distorted on a three-dimensional surface of the object;
a second image capturing device having a field of view and adapted to capture an image of a two-dimensional view of the object;
a mechanism adapted to adjust height of the device so that the object is in the field of view of the illumination unit, the first image capturing device, and the second image capturing device; and
a third reflecting surface adapted to refract optical axis of the second image capturing device to reduce dimension of the second image capturing device so that the second image capturing device captures an image of a two-dimensional view of the object consistent with an ICAO standard.
20 . A device for performing enrollment of an object's two-dimensional and three-dimensional face biometrics, the device comprising:
means for projecting patterned light on the object;
means for capturing an image of a pattern projected on the object and distorted on a three-dimensional surface; and
means for capturing an image of a two-dimensional view of the object.
21 . A device for performing enrollment of two-dimensional and three-dimensional facial biometrics for biometric control applications, the device comprising:
an illumination unit adapted to project light on an object;
a first image capturing device adapted to capture an image of a pattern projected on the object and distorted on a three-dimensional surface of the object;
a second image capturing device adapted to see the object through a first translucent surface and to capture an image of a two-dimensional view of the object;
the first translucent surface positioned between the second image capturing device and an orientation unit, the first translucent surface adapted to refract optical axis of the second image capturing device as to reduce dimension of the second image capturing device; and
the orientation unit adapted to display the image of the two-dimensional view of the object so that the object is in the field of view of the second image capturing device.