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Title: |
US7418156:
Domain of definition in warper/morpher
[ Derwent Title ]

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Country: |
US United States of America

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Inventor: |
Candela, Dan; Beverly Hills, CA, United States of America
Middler, Mitch; Hermosa Beach, CA, United States of America
Brinkmann, Ron; Hermosa Beach, CA, United States of America
Wolberg, George; Woodmere, NY, United States of America

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Assignee: |
Apple Inc., Cupertino, CA, United States of America
other patents from APPLE COMPUTER, INC. (32940) (approx. 1,718)
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Published / Filed: |
2008-08-26
/ 2004-04-16

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Application Number: |
US2004000825847

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IPC Code: |
Advanced:
G06K 9/36;
Core:
more...

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ECLA Code: |
G06T15/70; G06T13/00B;

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U.S. Class: |
382/276;
382/241;
382/302;
704/215;

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Field of Search: |
382/106,117,289,291,190,100,169,176,209,236,243,248,250,302
345/345,622,629,589-591
348/416,745-747,807,416.1
764/203,269

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Priority Number: |
| 2004-04-16 |
US2004000825847 |

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Abstract: |
An efficient way to perform rendering operations in an image processing environment includes a warping engine having a warping module and a domain of definition (DOD) module. When an object is warped, a new DOD for the image is determined by the warping engine by comparing the location of certain pixels in the warped image with their corresponding locations in the original image. By maintaining a DOD for the warped images, only that portion of the DOD that intersects with a region of interest is computed, thus resulting in optimized performance.

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Attorney, Agent or Firm: |
Fenwick & West LLP ;

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Primary / Asst. Examiners: |
Ahmed, Samir A.; Rashidian, Mehdi

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INPADOC Legal Status: |
Show legal status actions

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Family: |
None

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First Claim:
Show all 21 claims |
1. A method for determining a domain of definition (DOD) in a warped image, the warped image formed from an original image, each pixel of the warped image having a displacement from a corresponding pixel in the original image, the original image unrestricted by a border, the method comprising: determining an original DOD associated with the original image, the original DOD comprising a region of the original image with a boundary surrounding useful information, the boundary having a plurality of edges corresponding to a plurality of directions; for each pixel located on the plurality of edges of the original DOD: determining a location of a corresponding pixel in the warped image; and determining a displacement of the pixel in the warped image from its corresponding pixel in the original image; for each of the plurality of edges, determining a maximal displacement value of a pixel on the edge in the direction corresponding to the edge; and determining a new DOD for the warped image, the new DOD for the warped image corresponding to a DOD in the original image, each edge of the new DOD displaced in the direction and by the determined maximal displacement value corresponding to the edge of the original DOD.

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Background / Summary: |
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Drawing Descriptions: |
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Description: |
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