IP Library › Granted Patent US 9,210,294
Granted Patent B2
US 9,210,294 · App. 14/153,182 · Granted Dec 8, 2015

System and method to manipulate an image

Inventors: Andrew Longacre, Jr. (Skaneateles, NY); Thomas Hawley (Skaneateles, NY); Matthew Pankow (Camillus, NY)
Assignee: Hand Held Products, Inc.
H04N1/40068G06K9/228G06K9/3208G06K9/3233G06K9/3275
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Quick Facts
Patent No.
US 9,210,294
App. No.
14/153,182
Granted
Dec 8, 2015
Kind
B2
Abstract

A method of operating an image reader typically includes: searching a digital image for nominally straight edges; characterizing the nominally straight edges in terms of length and/or direction; determining a predominant orientation of the nominally straight edges; establishing a group of edges as a function of their proximity to the center of the image; establishing a group of edges as a function of their proximity to other remaining edge positions; and transmuting a rectangle bounding those edges into a rectified image. The rectified image is typically an image that is cropped or rotated.

Claims (62)

1. A method of operating an image reader comprising:

searching a digital image for nominally straight edges;

characterizing the nominally straight edges in terms of length and/or direction;

establishing a first group of edges as a function of their proximity to the digital image's center;

establishing a second group of edges as a function of their proximity to other remaining edges;

transmuting a rectangle bounding the first group of edges and the second group of edges into a rectified image; and

wherein the rectified image is an image that is cropped by discarding portions of the digital image outside of the rectangle.

2. The method of claim 1 , comprising searching the digital image in high resolution and low resolution.

3. The method of claim 1 , comprising:

determining a predominant orientation of the nominally straight edges; and

discarding edges that are not nominally parallel or perpendicular to the determined predominate orientation.

4. The method of claim 1 , comprising rotating the digital image.

5. The method of claim 1 , comprising capturing the digital image and automatically searching the digital image for nominally straight edges.

6. The method of claim 1 , comprising:

capturing the digital image in high resolution and low resolution at the same time; and

searching the digital image in high resolution and low resolution.

7. A method of operating an image reader comprising:

searching a digital image at a high resolution for nominally straight edges;

searching the digital image at a low resolution for nominally straight edges;

characterizing the nominally straight edges in terms of length and/or direction;

determining a predominant orientation of the nominally straight edges;

discarding edges that are not nominally parallel or perpendicular to the determined predominate orientation;

establishing a first group of edges as a function of their proximity to the digital image's center;

establishing a second group of edges as a function of their proximity to other remaining edges;

transmuting a rectangle bounding the first group of edges and the second group of edges into a rectified image; and

wherein the rectified image is an image that is cropped by discarding portions of the digital image outside of the rectangle.

8. The method of claim 7 , comprising rotating the digital image.

9. The method of claim 7 , comprising capturing the digital image and automatically searching the digital image at a low resolution for nominally straight edges.

10. The method of claim 7 , comprising capturing the digital image in high resolution and low resolution at the same time.

11. An indicia reading device comprising:

an image sensor for outputting signals representative of an image in a field of view; and

a processor communicatively connected to the image sensor, the processor being configured for:

searching an image for nominally straight edges;

characterizing the nominally straight edges in terms of length and/or direction;

establishing a first group of edges as a function of their proximity to the image's center;

establishing a second group of edges as a function of their proximity to other remaining edges;

transmuting a rectangle bounding the first group of edges and the second group of edges into a rectified image; and

wherein the rectified image is an image that is cropped by discarding portions of the image outside of the rectangle.

12. The device of claim 11 , wherein the processor is configured for searching the image in high resolution and low resolution.

13. The device of claim 11 , wherein the processor is configured for:

determining a predominant orientation of the nominally straight edges; and

discarding edges that are not nominally parallel or perpendicular to the determined predominate orientation.

14. The device of claim 11 , wherein the processor is configured for rotating the image.

15. The device of claim 11 , wherein the processor is configured for capturing the image and automatically searching the image for nominally straight edges.

16. The device of claim 11 , wherein the processor is configured for:

capturing the image in high resolution and low resolution at the same time; and

searching the image in high resolution and low resolution.

17. An indicia reading device comprising:

an image sensor for outputting signals representative of an image in a field of view; and

a processor communicatively connected to the image sensor, the processor being configured for:

searching an image at a high resolution for nominally straight edges;

searching the image at a low resolution for nominally straight edges;

characterizing the nominally straight edges in terms of length and/or direction;

determining a predominant orientation of the nominally straight edges;

discarding edges that are not nominally parallel or perpendicular to the determined predominate orientation

establishing a first group of edges as a function of their proximity to the image's center;

establishing a second group of edges as a function of their proximity to other remaining edges;

transmuting a rectangle bounding the first group of edges and the second group of edges into a rectified image; and

wherein the rectified image is an image that is cropped by discarding portions of the digital image outside of the rectangle.

18. The device of claim 17 , wherein the processor is configured for rotating the image.

19. The device of claim 17 , wherein the processor is configured for capturing the image and automatically searching the image at a low resolution for nominally straight edges.

20. The device of claim 17 , wherein the processor is configured for capturing the digital image in high resolution and low resolution at the same time.

Assignments (1)
ASSIGNMENT OF ASSIGNOR'S INTEREST Recorded Oct 1, 2014
From: LONGACRE, ANDREW; HAWLEY, THOMAS; PANKOW, MATTHEW
To: HAND HELD PRODUCTS, INC.
Reel/Frame 033863/0415 →
Continuity (3)
Continuation 12151103 · May 2, 2008
Provisional Application 60927540 · May 3, 2007
Related Publication 20140125999A1 · May 8, 2014