Head-up display
AssigneeEnvisics Ltd
InventorFabien Roth
Life of this patent
Estimating the term…
Abstract
A head-up display for a vehicle. The head-up display comprises a projector and processor. The projector is arranged to project image content such that it is visible from an eye-box. The processor is arranged to receive captured images of a scene visible from the eye-box. The processor is arranged, at a first time to: detect a first object in a scene and instruct the image projector to project an icon (e.g. computer graphic) that appears, from the viewing position, to be coincident with the first object. The processor is further arranged to, at a second time later than the first time to: detect a second object in a line of sight from the eye-box position to the first object and instruct the image projector to change the visual appearance of the projected icon in response to the detection of the second object.
Claims20
A head-up display for a vehicle, the head-up display comprising:
- a projector arranged to project image content visible from a viewing position in an eye-box;
- a processor arranged to receive captured images of a scene visible from the viewing position of the eye-box and,
- at a first time:
- detect a first object in a scene from a first image captured at the first time, the first object being visible from the viewing position of the eye-box, and
- drive the image projector to project a first icon that appears, from the viewing position, to be substantially aligned with the first object;
- and
- at a second time later than the first time:
- determine a line of sight from the viewing position of the eye-box to the first object from a second image captured at the second time,
- detect a second object in the scene,
- determine that the second object is in the line of sight from the viewing position to the first object such that the second object at least partially blocks a view of the first object from the viewing position, and
- drive the image projector to stop projecting the first icon and start projecting a second icon as an overlay on the second object in response to the determination that the second object is in the line of sight from the viewing position to the first object, wherein the second icon differs in visual appearance from the first icon in at least one aspect of a physical form of the second icon.
A method of head-up display to a viewing position in an eye-box, the method comprising:
- capturing a first image of a scene at a first time;
- detecting a first object in the first image of the scene, the first object being visible from the viewing position of the eye-box at the first time;
- projecting a first icon that appears, from the viewing position, to be substantially aligned with the first object;
- then
- capturing a second image of the scene at a second time;
- detecting a second object in the second image of the scene;
- determining that the second object is in the line of sight from the viewing position to the first object at the second time, such that the second object at least partially blocks a view of the first object from the viewing position;
- and
- stopping projection of the first icon and starting projection of a second icon as an overlay on the second object in response to the determination that the second object is in the line of sight from the viewing position to the first object, wherein the second icon differs in visual appearance from the first icon in at least one aspect of the physical form of the of the second icon.
A method of head-up display to a viewing position in an eye-box, the method comprising:
- capturing a first image of a scene at a first time;
- detecting a first object in the first image of the scene, the first object being visible from the viewing position of the eye-box at the first time;
- projecting a first icon that appears, from the viewing position, to be substantially aligned with the first object;
- then
- capturing a second image of the scene at a second time;
- detecting a second object in the second image of the scene;
- determining from the second image that the second object at least partially blocks a view of the first object from the viewing position to the first object at the second time;
- and
- stopping projection of the first icon and starting projection of a second icon as an overlay on the second object in response to the determination that the second object at least partially blocks the view of the first object from the viewing position, wherein the second icon differs in visual appearance from the first icon in at least one aspect of the physical form of the second icon.
Dependencies are inferred from the claim text.