ELECTRONIC DEVICES FOR AND METHODS OF IMPLEMENTING MEMORY TRANSFERS FOR IMAGE WARPING IN AN ELECTRONIC DEVICE

• US 20190066358A1
• Filed: 08/22/2017
• Published: 02/28/2019
• Est. Priority Date: 08/22/2017
• Status: Active Grant

• Current Assignee: Samsung Electronics Co. Ltd.
• Original Assignee: Samsung Electronics Co. Ltd.
• Inventors: Goel, Manish, Subramaniam, Akila, Rithe, Rahul, Lee, Seok-Jun
• Granted Patent: US 10,565,778 B2
• Time in Patent Office: Days
• CPC Class Codes: G06F 13/10 Program control for peripheral devices G06F13/14 - G06F13/42 take precedence
• CPC Class Codes: G06T 1/60 Memory management
• CPC Class Codes: G06T 15/20 Perspective computation
• CPC Class Codes: G06T 3/00 Geometric image transformations in the plane of the image
• CPC Class Codes: H04N 1/2112 using still video cameras
• CPC Class Codes: H04N 23/00 Cameras or camera modules comprising electronic image sensors; Control thereof
• CPC Class Codes: Y02D 10/00 Energy efficient computing, e.g. low power processors, power management or thermal management

Abstract

A method of implementing memory transfers for image warping in an electronic device is described. The method comprises receiving an input tile associated with an image; generating a geometric boundary around pixels of the input tile; and remapping the pixels in the geometric boundary to an output tile. An electronic device and a non-transitory computer readable storage medium for performing the method are also disclosed.

Claims

1. A method of implementing memory transfers for image warping in an electronic device, the method comprising:

receiving an input tile associated with an image;

generating, using a processor, a geometric boundary around pixels of the input tile; and

remapping the pixels in the geometric boundary to an output tile.

2. The method of claim 1 wherein the geometric boundary comprises a convex hull.

3. The method of claim 1 wherein the geometric boundary comprises a bounding box.

4. The method of claim 1 wherein the remapping of pixels in the geometric boundary comprises implementing a lookup table.

5. The method of claim 1 wherein the remapping of pixels in the geometric boundary comprises implementing a function that accounts for at least one of rotation, translation or perspective.

6. The method of claim 1 wherein the remapping of pixels in the geometric boundary comprises identifying minimum and maximum values along rows of the geometric boundary.

7. The method of claim 1 wherein the remapping of pixels in the geometric boundary comprises compensating for distortion caused by a lens of the electronic device.

8. An electronic device, comprising:

a lens;

a processor coupled to the lens, the processor configured to;

receive an input tile associated with an image;

generate a geometric boundary around pixels of the input tile; and

remap the pixels in the geometric boundary to an output tile.

9. The electronic device of claim 8 wherein the geometric boundary comprises a convex hull.

10. The electronic device of claim 8 wherein the geometric boundary comprises a bounding box.

11. The electronic device of claim 8 wherein the remapping of pixels in the geometric boundary comprises implementing a lookup table.

12. The electronic device of claim 8 wherein the remapping of pixels in the geometric boundary comprises implementing a function that accounts for at least one or rotation, translation or perspective.

13. The electronic device of claim 8 wherein the remapping of pixels in the geometric boundary comprises identifying minimum and maximum values along rows of the geometric boundary.

14. The electronic device of claim 8 wherein the remapping of pixels in the geometric boundary comprises compensating for distortion caused by a lens of the electronic device.

15. A non-transitory computer-readable storage medium having data stored therein representing instructions executable by a processor to perform a method comprising:

receiving an input tile associated with an image;

generating a geometric boundary around pixels of the input tile; and

remapping the pixels in the geometric boundary to an output tile.

16. The non-transitory computer-readable storage medium of claim 15 wherein the geometric boundary comprises a convex hull.

17. The non-transitory computer-readable storage medium of claim 15 wherein the geometric boundary comprises a bounding box.

18. The non-transitory computer-readable storage medium of claim 15 wherein the remapping of pixels in the geometric boundary comprises implementing a lookup table.

19. The non-transitory computer-readable storage medium of claim 15 wherein the remapping of pixels in the geometric boundary comprises implementing a function that accounts for at least one or rotation, translation or perspective.

20. The non-transitory computer-readable storage medium of claim 15 wherein the remapping of pixels in the geometric boundary comprises identifying minimum and maximum values along rows of the geometric boundary.

21. The non-transitory computer-readable storage medium of claim 15 wherein the remapping of pixels in the geometric boundary comprises compensating for distortion caused by a lens of the electronic device.