Hybrid addressing for imaging and vision data

1. A method, comprising:

receiving image data of an input image having lines therein;

determining a start line for circular addressing of a first portion of the image data;

determining an end line for circular addressing of the first portion of the image data;

determining a start line and an end line for a second portion of the image data, wherein the second portion is non-overlapping with the first portion;

storing the second portion of the image data in a linear buffer in a first memory;

storing the first portion of the image data in a circular buffer in a second memory;

processing the second portion of the image data to produce a first block of an output image; and

processing the first portion of the image data to produce a second block of the output image.

2. The method of claim 1 , wherein the linear buffer is a first linear buffer, and the method further comprises:

determining a start line and an end line for a third portion of the image data, wherein the third portion is non-overlapping with the first portion and the second portion;

storing the third portion of the image data in a second linear buffer in the second memory; and

processing the third portion of the image data to produce a third block of the output image.

3. The method of claim 1 , wherein the circular buffer is stored in on-chip memory.

4. The method of claim 1 , wherein the linear buffer is stored in off-chip memory.

5. The method of claim 1 , further comprising retrieving the second portion of the image data from a top of the input image, and processing the second portion of the image data before processing the first portion of the image data.

6. The method of claim 1 , wherein the first portion of the image data includes a center line of the input image.

7. The method of claim 1 , wherein the second portion of the image data includes a line at an edge of the input image.

8. The method of claim 1 , further comprising selecting the start line for circular addressing and the end line for circular addressing based at least in part on a size of the circular buffer.

9. A method, comprising:

receiving image data of an input image having lines therein;

storing a first portion of the image data in a circular buffer in a first memory, wherein the first portion begins at a circular buffer start line in the input image and ends at a circular buffer end line in the input image;

storing a second portion of the image data in a linear buffer in a second memory, wherein the second portion is non-overlapping with the first portion;

processing the second portion of the image data to produce a first block of an output image; and

processing the first portion of the image data to produce a second block of the output image.

10. The method of claim 9 , wherein the linear buffer is a first linear buffer, and the method further comprises:

storing a third portion of the image data in a second linear buffer in the second memory, wherein the third portion is non-overlapping with the first portion and the second portion; and

processing the third portion of the image data to produce a third block of the output image.

11. The method of claim 9 , wherein the circular buffer is stored in on-chip memory.

12. The method of claim 9 , wherein the linear buffer is stored in off-chip memory.

13. The method of claim 9 , further comprising retrieving the second portion of the image data from a top portion of the input image, and processing the second portion of the image data before processing the first portion of the image data.

14. The method of claim 9 , further comprising retrieving the second portion of the image data from a top portion of the input image, and storing the second portion of the image data before storing the first portion of the image data.

15. The method of claim 9 , further comprising retrieving the second portion of the image data from a bottom portion of the input image, and processing the second portion of the image data after processing the first portion of the image data.

16. The method of claim 9 , further comprising retrieving the second portion of the image data from a bottom portion of the input image, and storing the second portion of the image data after storing the first portion of the image data.

17. A system, comprising:

a vision imaging subsystem configured to receive image data of an input image having lines therein;

processing circuitry configured to:

determine a start line for circular addressing of a first portion of the image data;

determine an end line for circular addressing of the first portion of the image data;

determine a start line and an end line for a second portion of the image data, wherein the second portion is non-overlapping with the first portion;

a first memory configured to store the second portion of the image data in a linear buffer;

a second memory configured to store the first portion of the image data in a circular buffer;

wherein the processing circuitry is further configured to process the second portion of the image data to produce a first block of an output image; and

wherein the processing circuitry is further configured to process the first portion of the image data to produce a second block of the output image.

18. The system of claim 17 , wherein the linear buffer is a first linear buffer, and the processing circuitry is further configured to:

determine a start line and an end line for a third portion of the image data, wherein the third portion is non-overlapping with the first portion and the second portion;

store the third portion of the image data in a second linear buffer in the second memory; and

process the third portion of the image data to produce a third block of the output image.

19. The system of claim 17 , wherein the processing circuitry is configured to select the start line for circular addressing and the end line for circular addressing based at least in part on a size of the circular buffer.

20. The system of claim 17 , wherein the circular buffer is stored in on-chip memory.