Enhanced road vision on full windshield head-up display
First Claim
1. Method to selectively project graphical images upon a transparent windscreen head up display of a vehicle based upon a need for enhanced vision, the method comprising:
- monitoring informational inputs corresponding to features of a roadway needed for travel, critical information perceived as a threat to the vehicle and an operational environment for the vehicle;
determining a degree of importance of the critical information;
determining a measure of visual conditions based on the operational environment for the vehicle;
comparing the measure of visual conditions to a threshold visual condition, said threshold visual condition adjustable based on the degree of importance of the critical information;
determining the need for enhanced vision based on the measure of visual conditions violating the threshold visual condition;
generating display requirements for the features of the roadway based on the need for enhanced vision;
generating the graphical images corresponding to the features of the roadway to be projected based upon the display requirements; and
projecting the graphical images upon the transparent windscreen head up display.
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Accused Products
Abstract
A method to selectively project graphical images upon a transparent windscreen head up display of a vehicle based upon a need for enhanced vision includes monitoring informational inputs describing an operational environment for the vehicle, processing the informational inputs to generate display requirements, generating the graphical images to be projected based upon the display requirements, and projecting the graphical images upon the transparent windscreen head up display. Processing of the informational inputs can include determining the need for enhanced vision based upon the informational inputs and generating the display requirements based upon the informational inputs and the need for enhanced vision.
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Citations
17 Claims
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1. Method to selectively project graphical images upon a transparent windscreen head up display of a vehicle based upon a need for enhanced vision, the method comprising:
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monitoring informational inputs corresponding to features of a roadway needed for travel, critical information perceived as a threat to the vehicle and an operational environment for the vehicle; determining a degree of importance of the critical information; determining a measure of visual conditions based on the operational environment for the vehicle; comparing the measure of visual conditions to a threshold visual condition, said threshold visual condition adjustable based on the degree of importance of the critical information; determining the need for enhanced vision based on the measure of visual conditions violating the threshold visual condition; generating display requirements for the features of the roadway based on the need for enhanced vision; generating the graphical images corresponding to the features of the roadway to be projected based upon the display requirements; and projecting the graphical images upon the transparent windscreen head up display. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9)
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10. System to display graphical images upon a windscreen of a vehicle, selectively enhancing a view through the windscreen, the system comprising:
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the windscreen comprising a transparent windscreen head up display; a device monitoring a measure of visual conditions; a device monitoring informational inputs corresponding to features of a roadway needed for travel, critical information perceived as a threat to the vehicle and an operational environment for the vehicle; an enhanced vision system system manager configured to; determine a degree of importance of the critical information; compare the measure of visual conditions to a threshold visual condition, wherein the threshold visual condition is adjustable based on the degree of importance of the critical information; and when the comparison of the measure of visual conditions to the threshold visual condition indicates impaired visual conditions, generate display requirements for the features of the roadway; a graphics system generating the graphical images corresponding to the features of the roadway to be displayed based upon the display requirements; and a graphics projection system communicating with the graphics system and displaying the graphical images. - View Dependent Claims (11, 12, 13, 14, 15, 16)
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17. An apparatus to selectively display registered graphics upon a substantially transparent head up display of a vehicle enhancing a view through the substantially transparent head up display, the apparatus comprising:
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a system manager configured to; monitor sensor inputs corresponding to a road surface in front of the vehicle and critical information perceived as a threat to the vehicle; monitor a measure of visual conditions; determine a degree of importance of the critical information; compare the measure of visual conditions to a threshold visual condition, the threshold visual condition adjustable based on the degree of importance of the critical information; determine a need for enhancing the view based upon the measure of visual conditions violating the threshold visual condition; and when the need for enhancing the view is determined, generate display requirements for the road surface based upon the monitored sensor inputs; and a graphics system generating the registered graphical images corresponding to the road surface based upon the display requirements.
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Specification