Unlock instant, AI-driven research and patent intelligence for your innovation.

Head-up display calibration

a head-up display and display technology, applied in the field of head-up displays, can solve the problems of large-format reflective displays that present challenges to the designer in image location and distortion

Active Publication Date: 2021-05-20
GM GLOBAL TECH OPERATIONS LLC
View PDF0 Cites 0 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Benefits of technology

This patent describes a system that compensates for distortion effects caused by the windshield of a vehicle when using a head-up display (HUD). The system includes a calibration array that is reflected off the windshield and captured by the HUD cameras. The calibration array includes identification features that provide information about the distortion effects caused by the windshield. By adjusting the virtual image projected by the HUD based on the calibration array, the system can counteract the distortion effects and provide a more accurate and reliable image for the driver. This improves safety and driving experience.

Problems solved by technology

Such large format reflective displays present challenges to the designer with respect to image location and distortion.

Method used

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
View more

Image

Smart Image Click on the blue labels to locate them in the text.
Viewing Examples
Smart Image
  • Head-up display calibration
  • Head-up display calibration
  • Head-up display calibration

Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0034]The following description is merely exemplary in nature and is not intended to limit the present disclosure, its application or uses. Throughout the drawings, corresponding reference numerals indicate like or corresponding parts and features. As used herein, control module, module, control, controller, control unit, processor and similar terms mean any one or various combinations of one or more of Application Specific Integrated Circuit(s) (ASIC), electronic circuit(s), central processing unit(s) (preferably microprocessor(s)) and associated memory and storage (read only memory (ROM), random access memory (RAM), electrically programmable read only memory (EPROM), hard drive, etc.) or microcontrollers executing one or more software or firmware programs or routines, combinational logic circuit(s), input / output circuitry and devices (I / O) and appropriate signal conditioning and buffer circuitry, high speed clock, analog to digital (A / D) and digital to analog (D / A) circuitry and o...

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More

PUM

PropertyMeasurementUnit
field of viewaaaaaaaaaa
reflectanceaaaaaaaaaa
fluorescenceaaaaaaaaaa
Login to View More

Abstract

A HUD apparatus for a vehicle includes a HUD patch defined upon a reflective surface of a windshield of the vehicle. A virtual image generator projects a virtual image within the HUD patch. An image sensor is coaligned with the virtual image generator and has a field of view including the HUD patch. A controller is configured to receive, from the image sensor, a HUD patch image, and to adjust the projected virtual image based upon the HUD patch image.

Description

INTRODUCTION[0001]This disclosure is related to head-up displays (HUD).[0002]A HUD is a display that presents data in a partially transparent manner and at a position allowing a user to see it without having to look away from his / her usual viewpoint (e.g., substantially forward). Although developed for military use, HUDs are now used in commercial aircraft, automobiles, computer gaming, and other applications.[0003]Within vehicles, HUDs may be used to project virtual images or vehicle parameter data in front of the vehicle windshield or surface so that the image is in or immediately adjacent to the operator's line of sight. Vehicle HUD systems can project data based on information received from operating components (e.g., sensors) internal to the vehicle to, for example, notify users of lane markings, identify proximity of another vehicle, or provide nearby landmark information.[0004]HUDs may also receive and project information from information systems external to the vehicle, such...

Claims

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More

Application Information

Patent Timeline
no application Login to View More
Patent Type & Authority Applications(United States)
IPC IPC(8): G02B27/01B32B17/10
CPCG02B27/0179B32B17/10036G02B27/0101G02B2027/011B60K35/53B60K35/23B60K35/415B32B17/10449B32B17/10458B32B2457/20B32B2605/08G02B2027/0194B60K2360/23B60K35/90
Inventor WELLS, JAMES W.LI, JINGLINCHANG, KAI-HANSEDER, THOMAS A.
Owner GM GLOBAL TECH OPERATIONS LLC