公开(公告)号：WO2022260954A1

公开(公告)日：2022-12-15

申请号：PCT/US2022/032175

申请日：2022-06-03

Applicant: SNAP INC.

Inventor： DEWALL, Jeffrey Michael ,  KANE, Alexander ,  SCHNITZER, Dominik ,  VIGNAU, Mathieu Emmanuel

IPC: H04N9/31 ,  G02B27/01

Abstract: Disclosed are systems and methods for adaptively adjusting brightness of a wearable device projection system. The systems and methods perform operations comprising: causing projection elements of the AR wearable device to project an image; receiving a measure of ambient light from an ambient light sensor; adjusting one or more hardware parameters of the projection elements of the AR wearable device based on the measure of ambient light; modifying one or more color values of the image displayed by the projection elements of the AR wearable device based on the measure of ambient light; and projecting the image with the modified color values using the projection elements of the AR wearable device with the adjusted one or more hardware parameters.

公开(公告)号：WO2022146781A1

公开(公告)日：2022-07-07

申请号：PCT/US2021/064593

申请日：2021-12-21

Applicant: SNAP INC.

Inventor： DEWALL, Jeffrey Michael ,  SCHNITZER, Dominik ,  SINGH, Amit ,  WAGNER, Daniel

IPC: H04N9/31

Abstract: A method for configuring a digital light projector (DLP) of an augmented reality (AR) display device is described. A light source component of the DLP projector is configured to generate a single red-green-blue color sequence repetition per image frame. The AR display device identifies a color sequence of the light source component of the DLP projector and tracks a motion of the AR display device. The AR display device adjusts an operation of the DLP projector based on the single red-green-blue color sequence repetition, the color sequence of the light source component of the DLP projector, and the motion of the AR display device.

公开(公告)号：WO2022005734A1

公开(公告)日：2022-01-06

申请号：PCT/US2021/037317

申请日：2021-06-15

Applicant: SNAP INC.

Inventor： BIRKLBAUER, Clemens ,  KANE, Alexander ,  SCHNITZER, Dominik

IPC: H04N5/232 ,  H04B10/116 ,  H04N5/235 ,  H04N17/002 ,  H04N5/2256 ,  H04N5/23218 ,  H04N5/2353 ,  H04N5/3532

Abstract: Camera pipeline exposure timestamp error determination methods and systems that detect latency in rolling shutter camera systems. The exposure timestamp error determination system includes a rolling shutter image sensor configured to capture an image and a processor. The processor determines timestamp error by capturing the image using the rolling shutter image sensor where the image includes a bar code encoded with a barcode timestamp. The processor then obtains a system exposure timestamp corresponding to capture of the image by the rolling shutter image sensor and the barcode timestamp by decoding the bar code. Pipeline exposure timestamp error is then determined for the rolling shutter camera system by comparing the obtained barcode timestamp to the system exposure timestamp.