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公开(公告)号：US10929956B2
公开(公告)日：2021-02-23
申请号：US16460321
申请日：2019-07-02
摘要： Techniques for de-aliasing depth ambiguities included within infrared phase depth images are described herein. An illuminator emits reference light towards a target object. Some of this light is reflected back and detected. A phase image is generated based on phase differences between the reference light and the reflected light. The phase differences represent changes in depth within overlapping sinusoidal periods of the reference and reflected light. The phase image also includes ambiguities because multiple different depths within the phase image share the same phase difference value, even though these depths actually correspond to different real-world depths. The phase image is fed as input to a machine learning (“ML”) component, which is configured to de-alias the ambiguities by determining, for each pixel in the phase image, a corresponding de-aliasing interval. A depth map is generated based on the phase image and any de-aliasing intervals generated by the ML component.
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公开(公告)号：US20200285848A1
公开(公告)日：2020-09-10
申请号：US16291256
申请日：2019-03-04
摘要： An improved iris recognition illumination system is disclosed. The system includes (i) an RGB laser device that is associated with a first collimating optic and (ii) an IR illumination device that is associated with a second collimating optic. The system also includes a DMA that has a MEMS mirror system. The DMA optically combines IR light and RGB light to generate combined light. The combined light is then directed towards a user's iris via a transport medium (e.g., a waveguide). One or more photodetector(s) are positioned to capture reflected light that is reflected off of the user's iris. The photodetectors include an IR detector configured to detect reflected IR light off of the user's iris in order to perform iris recognition.
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公开(公告)号：US20200278545A1
公开(公告)日：2020-09-03
申请号：US16289392
申请日：2019-02-28
摘要： Techniques are provided to re-arrange the placement of a photodiode within an illumination system to achieve improved characteristics and reduced form factor. An illumination system includes a laser assembly, a MEMS mirror system, a beam combiner, and a photodiode. The laser assembly includes RGB lasers, and the MEMS mirror system redirects laser light produced by the RGB lasers to illuminate pixels in an image frame. The beam combiner combines the laser light. The photodiode is provided to determine a power output of the laser assembly by receiving and measuring some of the laser light. The photodiode may be beneficially positioned before or after collimating optics and/or the beam combiner.
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公开(公告)号：US10762219B2
公开(公告)日：2020-09-01
申请号：US15983408
申请日：2018-05-18
发明人： Yuri Pekelny , Michael Bleyer , Raymond Kirk Price
摘要： Optimizations are provided to control access to virtual content included within a three-dimensional (3D) mesh. Specifically, after the 3D mesh is accessed, then objects represented by the 3D mesh are segmented so that they are distinguishable from one another. Once segmented, then a permissions is assigned to each object or even to groups of objects. For instance, all of the objects that are associated with a particular sub-space (e.g., a bedroom or a living room) may be assigned the same permissions. By assigning permissions to objects, it is possible to control which requesting entities will have access to the objects as well as how much access each of those requesting entities is afforded.
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公开(公告)号：US10747313B1
公开(公告)日：2020-08-18
申请号：US16291260
申请日：2019-03-04
摘要： An improved eye tracking illumination system is disclosed. The system includes (i) an RGB laser device that is associated with a first collimating optic and (ii) an IR illumination device that is associated with a second collimating optic. The system also includes a DMA that has a MEMS mirror system. The DMA optically combines IR light and RGB light to generate combined light. The combined light is then directed towards a user's eye via a transport medium (e.g., a waveguide). One or more photodetector(s) are positioned to capture reflected light that is reflected off of the user's eye. The photodetectors include an IR detector configured to detect reflected IR light off of the user's eye in order to perform eye tracking.
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公开(公告)号：US10560679B2
公开(公告)日：2020-02-11
申请号：US15252129
申请日：2016-08-30
发明人： Jian Zhao , Michael Bleyer , Raymond Kirk Price , Denis Demandolx
摘要： Disclosed are an apparatus and a method for detecting deformation of a structured light depth imaging system and automatic re-calibration for the depth imaging system. In one embodiment, a depth imaging device includes a light projector, a camera and a processor. The light projector emits light corresponding to a projected pattern image having a plurality of features with known locations in the projected pattern image. The camera captures the light reflected by an environment of the depth imaging device and generates a reflected pattern image as a two-dimensional (2D) projection of the environment. The reflected pattern image includes a plurality of features that correspond to the features of the projected pattern image. The processor detects a misalignment for a distance or an orientation between the light projector and the camera based on a relationship between the features in the projected pattern image and the features in the reflected pattern image.
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公开(公告)号：US10551914B2
公开(公告)日：2020-02-04
申请号：US15893320
申请日：2018-02-09
摘要： Eye tracking system incorporates and/or uses one or more silicon photomultiplier (SiPM) sensor and an infrared module of a microelectromechanical (MEMs)-based scanner. The infrared module emits a beam of photons, where at least some of the photons are directed towards a user's eye while the eye tracking system is being used. The SiPM sensor(s) capture a reflection that emanates off of the user's eye.
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公开(公告)号：US20190354699A1
公开(公告)日：2019-11-21
申请号：US16040675
申请日：2018-07-20
发明人： Yuri Pekelny , Michael Bleyer , Raymond Kirk Price
摘要： Optimizations are provided to control access to virtual content included within a three-dimensional (3D) mesh. Specifically, after the 3D mesh is accessed, then objects represented by the 3D mesh are segmented so that they are distinguishable from one another. Once segmented, then a permissions is assigned to each object or even to groups of objects. For instance, all of the objects that are associated with a particular sub-space (e.g., a bedroom or a living room) may be assigned the same permissions. By assigning permissions to objects, it is possible to control which requesting entities will have access to the objects as well as how much access each of those requesting entities is afforded.
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公开(公告)号：US10469758B2
公开(公告)日：2019-11-05
申请号：US15371087
申请日：2016-12-06
发明人： Raymond Kirk Price , Michael Bleyer , Jian Zhao , Ravi Kiran Nalla , Denis Demandolx , Zhiqiang Liu
IPC分类号： H04N13/207 , H04N5/232 , H04N5/225 , G02B5/20 , H04N13/254 , H04N5/222 , H04N5/235 , H04N13/271 , H04N13/239 , H04N13/00
摘要： A device for three-dimensional imaging includes a structured light illuminator and an imaging sensor. The structured light illuminator has one or more movable illuminator lenses positioned proximate an output of the illuminator that are configured to vary a field of illumination of the illuminator. The imaging sensor has one or more movable imaging lenses positioned proximate an input of the imaging sensor that are configured to vary a field of view of the imaging sensor.
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公开(公告)号：US20190325644A1
公开(公告)日：2019-10-24
申请号：US15957462
申请日：2018-04-19
发明人： Michael Bleyer , Yuri Pekelny , Raymond Kirk Price
摘要： Optimizations are provided for reconstructing geometric surfaces for an environment that includes moving objects. Multiple depth maps for the environment are created, where some of the depth maps correspond to different perspectives of the environment. A motion state identifier is assigned to at least some pixels in at least some of the depth maps corresponding to moving objects in the environment. A composite 3D mesh is built using at least some of the multiple depth maps, by incorporating pixel information from the depth maps, while omitting pixel information identified by the motion state identifiers as being associated with moving objects.
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