Abstract: Methods and apparatus for using polarized light (e.g., infrared (IR) light) to improve eye-related functions such as iris recognition. An eye camera system includes one or more IR cameras that capture images of the user's eyes that are processed to perform iris recognition, gaze tracking, or other functions. At least one polarizing element may be located in the path of the light which is used to capture images of the user's eye. The user's eye may be illuminated by IR light emitted by one or more LEDs. At least one of the LEDs may be an LED with a polarizing filter. Instead or in addition, at least one polarizer may be located at the eye camera sensor, in the eye camera optics, or as or in an additional optical element located on the light path between the eye camera and the user's eye.

Abstract: Methods and apparatus for biometric authentication in which two or more biometric features or aspects are captured and analyzed individually or in combination to identify and authenticate a person. An imaging system captures images of a person's iris, eye, periorbital region, and/or other regions of the person's face, and two or more features from the captured images are analyzed individually or in combination to identify and authenticate the person and/or to detect attempts to spoof the biometric authentication. Embodiments may improve the performance of biometric authentication systems, and may help to reduce false positives and false negatives by the biometric authentication algorithms.

Abstract: Methods and apparatus for flexible illumination that improve the performance and robustness of an imaging system are described. Multiple different lighting configurations for the imaging system are pre-generated. Each lighting configuration may specify one or more aspects of lighting. A lookup table may be generated via which each pose is associated with a respective lighting configuration. A user may put on, hold, or otherwise use the device. A process may be initiated in which different lighting configurations may be selected by the controller to capture images of the user's eye, periorbital region, or face at different poses and in different conditions for use by a biometric authentication or gaze tracking process.

Abstract: Methods and apparatus for biometric authentication in which two or more cameras are used to capture images of biometric features or aspects for analysis to identify and authenticate a person. An imaging system includes at least two cameras that are used to capture images of a person's iris, eye, periorbital region, and/or other regions of the person's face, and one or more features from the captured images are analyzed to identify and authenticate the person or to detect attempts to spoof the biometric authentication. Information from two or more images may be combined to process aspects and features extracted from the combined images. Alternatively, one of the images to be used for biometric authentication may be determined, for example using one or more objective criteria to evaluate the quality of the captured images.

Abstract: Methods and apparatus for biometric authentication in which a current eye pose is determined and evaluated to determine if the current pose is satisfactory, and in which the eye pose may be improved by the user manually adjusting the device or their pose/gaze direction in response to a signal from the controller, and/or in which the imaging system is mechanically adjusted at the direction of the controller to improve the current view of the eye.

Abstract: Methods and apparatus for flexible illumination in which two or more different wavelengths are used in the illumination system. An illumination source may be configured to emit light at two or more different wavelengths, either continuously or selectively. A method may be implemented in which a first wavelength is emitted for capturing an image or images for a first portion of algorithmic processing for biometric authentication, and a second wavelength is emitted for capturing another image or images for a second portion of algorithmic processing for biometric authentication. The camera may sequentially capture two or more images at different wavelengths. As an alternative, the camera may be configured to concurrently capture two or more images at different wavelengths.

Abstract: Methods and apparatus for stray light mitigation in optical systems that include two or more illumination sources (e.g., point light sources such as light-emitting diodes (LEDs)) that illuminate an object to be imaged, and a camera configured to capture images of light from the point light sources reflected by the object when illuminated. To mitigate “occlusions” or artifacts caused by, for example, stray light or reflections of the illumination sources off of other components of the system, multiple images of the object are captured with different groups of the illumination sources enabled. The captured images can then be processed and merged to generate an output image with the occlusions or artifacts caused by stray light or reflections mitigated or eliminated.

Abstract: The invention relates to a device and a method for performing an eye gaze mapping (M), in which at least one point of vision (B) and/or a viewing direction of at least one person (10) in relation to at least one scene recording (S) of a scene (12) viewed by the at least one person (10) is mapped onto a reference (R). At least a part of an algorithm (A1, A2, A3) for performing the eye gaze mapping (M) is thereby selected from multiple predetermined algorithms (A1, A2, A3) as a function of at least one parameter (P), and the eye gaze mapping (M) is performed on the basis of the at least one part of the algorithm (A1, A2, A3).

Abstract: Methods and apparatus for fabricating light-emitting diodes (LEDs) that include polarizing or wavefront-altering optical components are described in which additional optical components are added to the LED package to filter or modify the polarization of the emitted photons. Packaged LEDs that include polarizing or wavefront-altering optical components are also described. The packaged LEDs may emit infrared light that is polarized or otherwise altered by the optical components added during the fabrication process.

Abstract: The invention relates to a method for evaluating at least one view image (M) in order to image at least one viewpoint, which is provided in relation to at least one scene shot (S) of a scene (12), and/or at least one view direction of at least one person (10), said view direction being provided in relation to the at least one scene shot (S), towards a reference, the content of which matches at least one part of the scene (12). The at least one scene shot (S) is provided with the at least one assigned viewpoint (B) and/or the at least one assigned view direction, and the reference (R) is provided together with a result (B?) of the at least one view image (M). Furthermore, the at least one view image (M) is evaluated by means of at least one predefined quality measurement (GM), and the result of the evaluation is provided.

Abstract: The invention relates to an eye tracking device (10a; 10b; 10c) comprising a processing unit (18) and an optical system (14), which comprises a capturing unit. The optical system (14) provides a first optical path (P; P1) with a first imaging property and a second optical path (P; P2) with a second imaging property and the capturing unit (C; C1, C2) captures a first image (24a) by capturing light that has passed along the first optical path (P; P1) and a second image (24b) by capturing light that has passed along the second optical path (P; P2), so that due to the difference of the first and second imaging property the first (24a) and the second image (24b) comprise a difference related to a characteristic of at least part of the first and the second image (24b), wherein the eye tracking device (10a; 10b; 10c) is configured to determine a property of the eye (12) on the basis of at least one of the first image (24a) and the second image (24b).

Abstract: The invention relates to a method and a head mounted eye tracking device (10a, 10b) for determining at least a feature of an eye (12), wherein the eye tracking device (10a, 10b) comprises a capturing device (C) for capturing light reflected by the eye (12) and an optical component (14; E, E1, En, E2) capable of altering a propagation direction of the light passing through the optical component (14; E, E1, En, E2). The eye tracking device (10a, 10b) is configured such that when fixed to the head of the user the light captured by the capturing device (C) has passed through the optical component (14; E, E1, En, E2) and constitutes at least part of an image and the feature is determined on the basis of the image in dependency of an information about a relative position between the eye (12) and the head mounted eye tracking device (10a, 10b).

Abstract: The invention relates to a method for evaluating at least one view image (M) in order to image at least one viewpoint, which is provided in relation to at least one scene shot (S) of a scene (12), and/or at least one view direction of at least one person (10), said view direction being provided in relation to the at least one scene shot (S), towards a reference, the content of which matches at least one part of the scene (12). The at least one scene shot (S) is provided with the at least one assigned viewpoint (B) and/or the at least one assigned view direction, and the reference (R) is provided together with a result (B?) of the at least one view image (M). Furthermore, the at least one view image (M) is evaluated by means of at least one predefined quality measurement (GM), and the result of the evaluation is provided.

Abstract: The invention relates to a device and a method for performing an eye gaze mapping (M), in which at least one point of vision (B) and/or a viewing direction of at least one person (10) in relation to at least one scene recording (S) of a scene (12) viewed by the at least one person (10) is mapped onto a reference (R). At least a part of an algorithm (A1, A2, A3) for performing the eye gaze mapping (M) is thereby selected from multiple predetermined algorithms (A1, A2, A3) as a function of at least one parameter (P), and the eye gaze mapping (M) is performed on the basis of the at least one part of the algorithm (A1, A2, A3).

Abstract: A method for soldering an insulating substrate onto a substrate mounting portion of a carrier by a predefined solder is provided. The insulating substrate includes a dielectric insulation carrier, a top side, and a bottom side opposite to the top side. The method includes selecting the insulating substrate based on a criterion which indicates that the insulating substrate, if it has the solidus temperature of the solder, has a positive unevenness. The insulating substrate is soldered on the bottom side to the substrate mounting portion, such that, after the soldering, the solidified solder extends continuously from the bottom side of the insulating substrate as far as the substrate mounting portion. The top side of the insulating substrate is populated with at least one semiconductor chip.

Abstract: The invention relates to an eye tracking device (10a; 10b; 10c) comprising a processing unit (18) and an optical system (14), which comprises a capturing unit. The optical system (14) provides a first optical path (P; P1) with a first imaging property and a second optical path (P; P2) with a second imaging property and the capturing unit (C; C1, C2) captures a first image (24a) by capturing light that has passed along the first optical path (P; P1) and a second image (24b) by capturing light that has passed along the second optical path (P; P2), so that due to the difference of the first and second imaging property the first (24a) and the second image (24b) comprise a difference related to a characteristic of at least part of the first and the second image (24b), wherein the eye tracking device (10a; 10b; 10c) is configured to determine a property of the eye (12) on the basis of at least one of the first image (24a) and the second image (24b).

Abstract: The invention relates to a method and a head mounted eye tracking device (10a, 10b) for determining at least a feature of an eye (12), wherein the eye tracking device (10a, 10b) comprises a capturing device (C) for capturing light reflected by the eye (12) and an optical component (14; E, E1, En, E2) capable of altering a propagation direction of the light passing through the optical component (14; E, E1, En, E2). The eye tracking device (10a, 10b) is configured such that when fixed to the head of the user the light captured by the capturing device (C) has passed through the optical component (14; E, E1, En, E2) and constitutes at least part of an image and the feature is determined on the basis of the image in dependency of an information about a relative position between the eye (12) and the head mounted eye tracking device (10a, 10b).

Abstract: A method for soldering an insulating substrate onto a substrate mounting portion of a carrier by a predefined solder is provided. The insulating substrate includes a dielectric insulation carrier, a top side, and a bottom side opposite to the top side. The method includes selecting the insulating substrate based on a criterion which indicates that the insulating substrate, if it has the solidus temperature of the solder, has a positive unevenness. The insulating substrate is soldered on the bottom side to the substrate mounting portion, such that, after the soldering, the solidified solder extends continuously from the bottom side of the insulating substrate as far as the substrate mounting portion. The top side of the insulating substrate is populated with at least one semiconductor chip.