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US 12,120,288 B2Granted
Fail safe surround view
AssigneeTexas Instruments Incorporated
InventorsShashank Dabral, Aishwarya Dubey, Gowtham Abhilash Tammana
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Abstract
A technique including capturing, by one or more cameras of a set of cameras disposed about a vehicle, one or more images, wherein a surround view system of the vehicle is configured to render a surround view image using a first hardware accelerator based on the one or more images, determining that a first hardware accelerator is unavailable, and rendering the surround view image using a second hardware accelerator based on the captured one or more images.
Claims17
A method comprising:
- capturing, by a set of cameras disposed about a vehicle, one or more images;
- monitoring a shared register for an indication that a first hardware accelerator has output a frame, the first hardware accelerator being accessible using a first operating system;
- and
- responsive to determining that the indication has not been received within a threshold period of time:
- rendering a surround view image using a second hardware accelerator based on the one or more images captured by the set of cameras, the second hardware accelerator being accessible using a second operating system different from the first operating system;
- and
- restarting the first operating system.
4 more elements
A method comprising:
- capturing, by a set of cameras disposed about a vehicle, one or more images, wherein a surround view system of the vehicle is configured to render a surround view image based on the one or more images;
- determining that a first hardware accelerator of the surround view system is unavailable to render the surround view image;
- and
- responsive to determining that the first hardware accelerator is unavailable to render the surround view image, rendering the surround view image using a second hardware accelerator of the surround view system based on the captured one or more images,
- wherein determining that the first hardware accelerator is unavailable to render the surround view image includes monitoring output frames of the first hardware accelerator.
2 more elements
A method comprising:
- capturing, by a set of cameras disposed about a vehicle, one or more images, wherein a surround view system of the vehicle is configured to render a surround view image based on the one or more images;
- determining that a first hardware accelerator of the surround view system is unavailable to render the surround view image;
- rendering the surround view image using a second hardware accelerator of the surround view system based on the captured one or more images;
- determining a first camera, of the set of cameras, is unavailable;
- and
- based on the determination that the first camera is unavailable, rendering a compensated surround view image by adjusting blend lines of one or more cameras, of the set of cameras, adjacent to the first camera.
3 more elements
An electronic device, comprising:
- a first surround view sub-system including a first processor and a first hardware accelerator;
- and
- a second surround view sub-system including a second processor and a second hardware accelerator,
- wherein the first processor is configured to use a first operating system to access the first hardware accelerator, and the second processor is configured to use a second operating system different from the first operating system to access the second hardware accelerator, and
- wherein the second processor is configured to:
- monitor a shared register for an indication that the first hardware accelerator has output a frame;
- determine a failure associated with the first surround view sub-system based on that the indication has not been received within a threshold period of time;
- and
- responsive to a determination of the failure, cause the second hardware accelerator to render a surround view image based on the one or more images captured by one or more cameras.
6 more elements
An electronic device comprising:
- an image signal processor configured to receive one or more images captured by a set of cameras, disposed about a vehicle;
- a first processor configured to execute instructions to cause the first processor to render a surround view image around the vehicle using a first hardware accelerator, when available, based on the received one or more images;
- and
- a second processor configured to execute instructions to cause the second processor to:
- determine that the first hardware accelerator is unavailable;
- and
- responsive to a determination that the first hardware accelerator is unavailable, cause the surround view image to be rendered using a second hardware accelerator based on the one or more images captured,
- wherein the instructions to determine that the first hardware accelerator is unavailable comprises instructions to cause the second processor to monitor output frames of the first hardware accelerator.
5 more elements
An electronic device comprising:
- an image signal processor configured to receive one or more images captured by a set of cameras, disposed about a vehicle;
- a first processor configured to execute instructions to cause the first processor to render a surround view image around the vehicle using a first hardware accelerator, when available, based on the received one or more images;
- and
- a second processor configured to execute instructions to cause the second processor to:
- determine that the first hardware accelerator is unavailable;
- and
- cause the surround view image to be rendered using a second hardware accelerator based on the one or more images captured;
- wherein the instructions cause the first processor or the second processor to:
- determine a first camera, of the set of cameras, is unavailable;
- and
- based on the determination that the first camera is unavailable, render a compensated surround view image by adjusting blend lines of one or more cameras, of the set of cameras, adjacent to the first camera.
8 more elements
A non-transitory program storage device comprising instructions stored thereon when executed to cause:
- a first processor to render, when available, a surround view image around a vehicle using a first hardware accelerator based on one or more images captured by one or more cameras disposed about the vehicle, the first hardware accelerator accessible using a first operating system;
- and
- a second processor to:
- monitor a shared register for an indication that the first hardware accelerator has output a frame;
- and
- responsive to a determination that the indication has not been received within a threshold period of time, cause the surround view image to be rendered using a second hardware accelerator based on the one or more captured images, the second hardware accelerator accessible using a second operating system different from the first operating system.
3 more elements
Dependencies are inferred from the claim text.