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公开(公告)号：US20240219734A1
公开(公告)日：2024-07-04
申请号：US18603546
申请日：2024-03-13
Applicant: Microsoft Technology Licensing, LLC
Inventor： Raymond Kirk PRICE , Christopher Douglas EDMONDS , Michael BLEYER
IPC: G02B27/01 , G01B11/02 , G01S17/894 , H05B47/11 , H05B47/19
CPC classification number: G02B27/0172 , G01B11/026 , G01S17/894 , H05B47/11 , H05B47/19 , G02B2027/0118 , G02B2027/0138
Abstract: Disclosed herein are techniques for providing an illumination system that emits illumination into an environment while also enabling that system to be undetectable to certain types of external light detection systems. The system includes a single photon avalanche diode (SPAD) low light (LL) detection device and a light emitting device. The light emitting device provides illumination having a wavelength of at least 950 nanometers (nm). An intensity of the illumination is set to a level that causes the illumination to be undetectable from a determined distance away based on the roll off rate of the light. While the light emitting device is providing the illumination, the SPAD LL detection device generates an image of an environment in which the illumination is being provided.
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公开(公告)号：US20240119610A1
公开(公告)日：2024-04-11
申请号：US18545501
申请日：2023-12-19
Applicant: Microsoft Technology Licensing, LLC
Inventor： Raymond Kirk PRICE , Michael BLEYER , Christopher Douglas EDMONDS
CPC classification number: G06T7/33 , G02B27/017 , G06T7/11 , G06T7/174 , G02B2027/0138 , G02B2027/014 , G02B2027/0178
Abstract: Techniques for correcting an overlay misalignment between an external camera image and a system camera image are disclosed. A first system camera image and a first external camera image are acquired. A first visual alignment is performed between those two images to produce an overlaid image. Some of the content in the overlaid image is surrounded by a bounding element. A position of the bounding element is modified based on movements of the system camera and/or the external camera. In response to performing a second visual alignment using new images, an update vector is computed. Relative movement between the two cameras is determined. Based on the movement and based on the update vector, the bounding element is progressively transitioned to a corrected position in the overlaid image. A speed by which the bounding element is progressively transitioned is proportional to the amount of movement.
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公开(公告)号：US20230308631A1
公开(公告)日：2023-09-28
申请号：US17655964
申请日：2022-03-22
Applicant: Microsoft Technology Licensing, LLC
Inventor： Raymond Kirk PRICE , Michael BLEYER , Christopher Douglas EDMONDS
IPC: H04N13/398 , H04N13/239 , H04N13/383 , G01S17/89 , G01B11/22
CPC classification number: H04N13/398 , H04N13/239 , H04N13/383 , G01S17/89 , G01B11/22 , H04N2013/0081
Abstract: Examples are disclosed that relate to providing image data to a user in a defined space of a surrounding environment from a perspective of the user. One example provides a computing system, comprising a logic subsystem, and a storage subsystem comprising instructions executable by the logic subsystem to obtain information regarding a pose of a user within a defined space, based upon the pose of the user, determine a portion of an environment surrounding the defined space toward which the user is looking, obtain image data representing the portion of the environment from a perspective of the user, and provide the image data for display via a display device within the defined space.
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公开(公告)号：US20230276144A1
公开(公告)日：2023-08-31
申请号：US17682972
申请日：2022-02-28
Applicant: Microsoft Technology Licensing, LLC
Inventor： Raymond Kirk PRICE , Michael BLEYER , Christopher Douglas EDMONDS
CPC classification number: H04N5/3651 , G06T5/002
Abstract: An image sensor configured to capture imagery with mitigated noise includes a plurality of image sensing pixels arranged to form a sensor array. Each image sensing pixel of the plurality of image sensing pixels comprises an active area configured to receive photons to facilitate image capture. Each active area comprises a length and a width. For at least one image sensing pixel of the plurality of image sensing pixels, the length or the width of the active area is smaller than about 80% of a pixel pitch measurement between the at least one image sensing pixel and an adjacent image sensing pixel. A size of the active area relative to the pixel pitch measurement contributes to mitigating sensor noise for the image sensor.
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公开(公告)号：US20220413291A1
公开(公告)日：2022-12-29
申请号：US17357855
申请日：2021-06-24
Applicant: Microsoft Technology Licensing, LLC
Inventor： Raymond Kirk PRICE , Michael BLEYER , Christopher Douglas EDMONDS
Abstract: A near-eye display device comprises a pupil-expansion optic, a laser, a drive circuit coupled operatively to the first and second lasers, a spatial light modulator (SLM), and a computer. The SLM has a matrix of electronically controllable pixel elements and is configured to receive emission from the laser and to direct the emission in spatially modulated form to the pupil-expansion optic. Coupled operatively to the drive circuit and to the SLM, the computer is configured to parse a digital image, trigger the emission from the laser by causing the drive circuit to drive a periodic current through a gain structure of the laser, and control the matrix of pixel elements such that the spatially modulated form of the emission projects an optical image corresponding to the digital image, wherein the periodic current includes plural cycles of modulation driven through the gain structure while the optical image is projected.
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Patent Agency Ranking
公开(公告)号：US20220385843A1
公开(公告)日：2022-12-01
申请号：US17334635
申请日：2021-05-28
Applicant: Microsoft Technology Licensing, LLC
Inventor： Raymond Kirk PRICE , Michael BLEYER , Christopher Douglas EDMONDS
Abstract: A system for obtaining color imagery using SPADs includes a SPAD array that has a plurality of SPAD pixels. Each of the plurality of SPAD pixels includes a respective color filter positioned thereover. The system is configurable to capture an image frame using the SPAD array and generate a filtered image by performing a temporal filtering operation using the image frame and at least one preceding image frame. The at least one preceding image frame is captured by the SPAD array at a timepoint that temporally precedes a timepoint associated with the image frame. The system is also configurable to, after performing the temporal filtering operation, generate a color image by demosaicing the filtered image.
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公开(公告)号：US20220351345A1
公开(公告)日：2022-11-03
申请号：US17306681
申请日：2021-05-03
Applicant: Microsoft Technology Licensing, LLC
Inventor： Raymond Kirk PRICE , Michael BLEYER , Christopher Douglas EDMONDS
Abstract: Techniques for generating a fused enhanced image. A first image is generated using a first camera of a first modality, and a second image is generated using a second camera of a second modality. Pixels that are common between the two images are identified. Textures for the common pixels are determined. A camera characteristic, which is linked to noise, is identified. A scaling factor is applied to the textures in the first image. A first saliency is determined using the scaled textures. A second saliency is determined using the textures from the second image. An alpha map is generated and reflects edge detection weights that have been computed for each one of the common pixels based on the two saliencies. Based on the alpha map, textures are merged from the common pixels to generate the fused enhanced image.
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公开(公告)号：US20220337751A1
公开(公告)日：2022-10-20
申请号：US17230813
申请日：2021-04-14
Applicant: Microsoft Technology Licensing, LLC
Inventor： Michael BLEYER , Christopher Douglas EDMONDS , Antonios MATAKOS , Raymond Kirk PRICE
Abstract: A system for generating depth information from low-resolution images is configured to access a plurality of image frames capturing an environment, identify a first group of image frames from the plurality of image frames, and generate a first image comprising a first composite image of the environment using the first group of image frames as input. The first composite image has an image resolution that is higher than an image resolution of the image frames of the first group of image frames. The system is also configured to obtain a second image of the environment, where parallax exists between a capture perspective associated with the first image and a capture perspective associated with the second image. The system is also configured to generate depth information for the environment based on the first image and the second image.
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公开(公告)号：US20220262005A1
公开(公告)日：2022-08-18
申请号：US17179020
申请日：2021-02-18
Applicant: Microsoft Technology Licensing, LLC
Inventor： Michael BLEYER , Christopher Douglas EDMONDS , Raymond Kirk PRICE
Abstract: Techniques for generating an enhanced image. A first image is generated using a first camera of a first modality, and a second image is generated using a second camera of a second modality. Pixels that are common between the two images are identified. Textures for the common pixels are determined. Saliencies of the two images are determined, where the saliencies reflect amounts of texture variation present in those images. An alpha map is generated and reflects edge detection weights that have been computed for each one of the common pixels based on the two saliencies. A determination is made as to how much texture from the first and/or second images to use to generate an enhanced image. This determining process is based on the edge detection weights included within the alpha map. Based on the edge detection weights, textures are merged from the common pixels to generate the enhanced image.
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公开(公告)号：US20220201239A1
公开(公告)日：2022-06-23
申请号：US17125889
申请日：2020-12-17
Applicant: Microsoft Technology Licensing, LLC
Inventor： Raymond Kirk PRICE , Michael BLEYER , Christopher Douglas EDMONDS , Benjamin BROWN , Casey Lee MILLER
Abstract: A method for enhancing digital imagery. The method comprises receiving a linear, intensity-based image of an environment. A histogram of intensity values is generated for a plurality of pixels within the linear, intensity-based image. Based on the histogram of intensity values, local contrast enhancement is applied to the linear, intensity-based image to generate a contrast enhanced version of the linear, intensity-based image, and artificial colorization is applied to the linear, intensity-based image to generate an artificially colorized version of the linear, intensity-based image. A composite image of the environment is then generated based on at least a portion of the contrast enhanced version of the linear, intensity-based image and at least a portion of the artificially colorized version of the linear, intensity-based image.
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