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公开(公告)号：US12087190B2
公开(公告)日：2024-09-10
申请号：US17814661
申请日：2022-07-25
Applicant: GM Global Technology Operations LLC
Inventor： Kai-Han Chang , Thomas A. Seder , Manoj Sharma
IPC: G09G3/00 , B60K35/00 , G02B5/02 , G02B27/01 , G02B27/36 , G06T5/00 , G06T5/80 , B60K35/23 , B60K35/81
CPC classification number: G09G3/002 , B60K35/00 , G02B5/0284 , G02B27/0103 , G02B27/36 , G06T5/80 , B60K35/23 , B60K35/81 , B60K2360/21 , B60K2360/29 , G02B2027/011 , G02B2027/0138 , G09G2320/0693 , G09G2380/10
Abstract: A system for calibrating a waveguide-based holographic head-up display that projects images upon a windscreen of a vehicle including a light-diffusing panel positioned at the center of an eyellipse to reflect the images projected by the waveguide-based holographic head-up display. An eyebox of the waveguide-based holographic head-up display is positioned at the center of the eyellipse, and the eyebox is divided into a plurality of unit exit pupils. The system also includes a camera positioned to capture the images reflected by the light-diffusing panel and one or more controllers in electronic communication with the waveguide-based holographic head-up display and the camera. The one or more controllers execute instructions to determine a warp map based on a plurality of corrected individual calibration patterns.
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公开(公告)号：US12001168B2
公开(公告)日：2024-06-04
申请号：US17038356
申请日：2020-09-30
Applicant: GM GLOBAL TECHNOLOGY OPERATIONS LLC
Inventor： Kai-Han Chang , Thomas A. Seder
CPC classification number: G03H1/2294 , G02B27/0172 , G03H1/2249 , G02B2027/0174 , G02B2027/0178 , G03H2001/2271 , G03H2222/34 , G03H2223/18 , G03H2223/19
Abstract: A holographic projection system including first, second and third light sources, SLMs, a lens, a combiner and a control module. The first, second and third light sources generate respective light beams. The light beams have respective wavelengths. The SLMs respectively diffract the light beams. The lens is disposed to adjust a divergence angle of one of the light beams, such that diffracted light out of each of the SLMs is at a same diffraction angle. The SLMs encode phase holograms including respective versions of a graphic image based on light generated by the light sources including light output from the lens to provide phase hologram beams. The combiner combines the phase hologram beams to provide a combined phase hologram beam projected for viewing a combined graphic image. The control module encodes a prism hologram on one of the SLMs to align outputs of the SLMs.
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公开(公告)号：US11978265B2
公开(公告)日：2024-05-07
申请号：US17692488
申请日：2022-03-11
Applicant: GM Global Technology Operations LLC
Inventor： Joseph F. Szczerba , John P. Weiss , Kai-Han Chang , Thomas A. Seder
IPC: G06V20/58 , B60K35/00 , B60K35/23 , B60K35/28 , G06T7/70 , G06T11/00 , G06V40/18 , H04N7/18 , B60K35/65
CPC classification number: G06V20/582 , B60K35/00 , G06T7/70 , G06T11/00 , G06V40/18 , H04N7/183 , B60K35/23 , B60K35/28 , B60K35/65 , B60K2360/166 , B60K2360/168 , B60K2360/177 , B60K2360/31 , B60K2360/741 , G06T2207/30201 , G06T2207/30256
Abstract: A method for displaying lane information on an augmented reality display includes receiving roadway data. The roadway data includes information about a roadway along a route of a vehicle. The roadway includes a plurality of lanes. The roadway data includes lane information about at least one of the plurality of lanes along the route of the vehicle. The method further includes receiving vehicle-location data. The vehicle-location data indicates a location of the vehicle. The method further includes determining that that the vehicle is approaching a road junction using the vehicle-location data and the roadway data. The method further includes, in response to determining that the vehicle is approaching the road junction, transmitting a command signal to a dual-focal plane augmented reality display to display at least one virtual image that is indicative of the lane information.
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公开(公告)号：US11947315B2
公开(公告)日：2024-04-02
申请号：US17237815
申请日：2021-04-22
Applicant: GM GLOBAL TECHNOLOGY OPERATIONS LLC
Inventor： Thomas A. Seder , Kai-Han Chang
CPC classification number: G03H1/2294 , B60K35/00 , G03H1/2249 , G06F3/013 , G06T7/521 , G06T7/90 , B60K2370/1529 , B60K2370/29 , G03H2001/2284 , G03H2225/30
Abstract: A holographic projection system includes a SLM that receives a light beam and generates a modulated beam projected at an eyebox, where: the modulated beam includes multiple versions of a test image; and the test image includes bright objects and transparent regions, which are selected dark areas of interest for measuring luminance. A control module runs a test to characterize contrast in each of multiple virtual image planes including: controlling the SLM to generate the modulated beam; measuring luminance levels of each of the versions of the test image displayed in the virtual image planes; calculating contrast ratios based on the luminance levels of each of the versions of the test image; determining whether the contrast ratios are within predetermined ranges of predetermined contrast ratios; and adjusting operation of the SLM in response to one of the contrast ratios not being within a corresponding one of the predetermined ranges.
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公开(公告)号：US11938821B2
公开(公告)日：2024-03-26
申请号：US17864612
申请日：2022-07-14
Applicant: GM Global Technology Operations LLC
Inventor： Joseph F. Szczerba , Kai-Han Chang , Manoj Sharma , Thomas A. Seder
IPC: B60K35/00 , G03H1/00 , G06F3/01 , G06F3/16 , H04N13/368 , H04N13/383
CPC classification number: B60K35/00 , G03H1/0005 , G06F3/013 , G06F3/016 , G06F3/017 , G06F3/167 , H04N13/368 , H04N13/383 , B60K35/10 , B60K35/211 , B60K35/23 , B60K35/25 , B60K35/60 , B60K2360/146 , B60K2360/148 , B60K2360/77 , G03H2001/0061
Abstract: A method and a system for user interaction with a hologram includes displaying the hologram inside a passenger compartment of the vehicle, after displaying the hologram inside the passenger compartment of the vehicle, monitoring a vehicle user inside the passenger compartment of the vehicle to determine whether the vehicle user provided a user command, determining that the vehicle user provided the user command, and in response to determining that the vehicle user provided the user command, manipulating the hologram in accordance with the user command.
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66.发明授权
公开(公告)号：US11915395B2
公开(公告)日：2024-02-27
申请号：US17813781
申请日：2022-07-20
Applicant: GM Global Technology Operations LLC
Inventor： Manoj Sharma , Kai-Han Chang , Thomas A. Seder
CPC classification number: G06T5/002 , B60K35/00 , G02B27/0103 , G02B2027/0109
Abstract: A holographic display system provides a maximum intensity value of an intermediate image to decrease a graphics speckle noise. The system includes an SLM having a display with a hologram generating unit and a plurality of pixels for modulating a beam of coherent light. The system further includes a beam splitter for splitting the beam into an object beam and an intermediate image beam that is associated with an intermediate image having the noise. The system further includes a camera for capturing the intermediate image, in response to the camera receiving the intermediate image beam. The system further includes a computer having a processor and a CRM. The processor is programmed to generate an actuation signal associated with a corrective holographic phase shift to decrease the noise. The SLM modifies in real-time a holographic phase of the beam per pixel, in response to the SLM receiving the actuation signal.
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公开(公告)号：US20240046619A1
公开(公告)日：2024-02-08
申请号：US17817061
申请日：2022-08-03
Applicant: GM Global Technology Operations LLC
Inventor： Manoj Sharma , Thomas A. Seder , Kai-Han Chang
CPC classification number: G06V10/7715 , G06V10/82 , G02B27/0103
Abstract: A system comprises a computer including a processor and a memory. The memory includes instructions such that the processor is programmed to receive, at a deep neural network, an image captured by an image capture device. The processor is also programmed to generate a predicted distortion map based on the image and update at least one weight of the deep neural network based on a loss function of the deep neural network.
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公开(公告)号：US20240045204A1
公开(公告)日：2024-02-08
申请号：US17817043
申请日：2022-08-03
Applicant: GM Global Technology Operations LLC
Inventor： Jacob Alan Bond , Joseph F. Szczerba , John P. Weiss , Kai-Han Chang , Thomas A. Seder
CPC classification number: G02B27/0101 , B60K35/00 , G02B27/0179 , B60W50/14 , G02B27/0093 , G06T7/00 , B60K2370/1529 , G02B2027/014 , B60K2370/334 , G02B2027/0138 , G02B2027/0141 , G02B2027/0187 , B60W2050/146 , B60K2370/21 , B60K2370/52
Abstract: A system for displaying information for an occupant of a vehicle includes a plurality of vehicle sensors, a display, and a controller in electrical communication with the plurality of vehicle sensors and the display. The controller is programmed to detect a remote vehicle in an environment surrounding the vehicle using the plurality of vehicle sensors, determine an intended illumination status of at least one indicator of the remote vehicle using the plurality of vehicle sensors, where the intended illumination status includes an intended lit status and an intended un-lit status, and display a graphic based at least in part on the intended illumination status of the at least one indicator of the remote vehicle using the display.
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公开(公告)号：US20240029599A1
公开(公告)日：2024-01-25
申请号：US17814661
申请日：2022-07-25
Applicant: GM Global Technology Operations LLC
Inventor： Kai-Han Chang , Thomas A. Seder , Manoj Sharma
CPC classification number: G09G3/002 , G02B27/0103 , G02B5/0284 , G02B27/36 , G06T5/006 , B60K35/00 , G02B2027/0138 , G02B2027/011 , G09G2320/0693 , G09G2380/10 , B60K2370/1529 , B60K2370/29 , B60K2370/21 , B60K2370/52
Abstract: A system for calibrating a waveguide-based holographic head-up display that projects images upon a windscreen of a vehicle including a light-diffusing panel positioned at a center of an eyellipse to reflect the images projected by the waveguide-based holographic head-up display. An eyebox of the waveguide-based holographic head-up display is positioned at the center of an eyellipse, and the eyebox is divided into a plurality of unit exit pupils. The system also includes a camera positioned to capture the images reflected by the light-diffusing panel and one or more controllers in electronic communication with the waveguide-based holographic head-up display and the camera. The one or more controllers execute instructions to determine a warp map based on a plurality of corrected individual calibration patterns.
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公开(公告)号：US11858349B1
公开(公告)日：2024-01-02
申请号：US17814654
申请日：2022-07-25
Applicant: GM Global Technology Operations LLC
Inventor： Guy N. Kennerly , Kai-Han Chang , James W. Wells , Thomas A Seder
CPC classification number: B60K35/00 , G02B27/0179 , B60K2370/785 , G02B2027/0187
Abstract: A head-up display system for displaying graphics upon a windscreen of a vehicle to provide a driver with a gamified experience includes a driver monitoring system including one or more cameras that determine a location of a head of the driver of the vehicle and an eye location of the driver, a graphic projection module for generating images upon the windscreen of the vehicle, and one or more controllers in electronic communication with the driver monitoring system and the graphic projection module. The controller executes instructions to instruct the graphic projection module to generate a vertical alignment graphic upon the windscreen of the vehicle. The vertical alignment graphic indicates when the eye location of the driver is positioned at a nominal height of an eyebox of the head-up display.
