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 Title: |
US7324664:
Method of and system for determining angular orientation of an object
[ Derwent Title ]
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| Country: |
US United States of America
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| Inventor: |
Jouppi, Norman Paul; Palo Alto, CA, United States of America
Slayden, April Marie; Redwood City, CA, United States of America
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| Assignee: |
Hewlett-Packard Development Company, L.P., Houston, TX, United States of America
other patents from HEWLETT-PACKARD DEVELOPMENT COMPANY, L.P. (815532) (approx. 1,981)
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| Published / Filed: |
2008-01-29
/ 2003-10-28
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| Application Number: |
US2003000696238
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| IPC Code: |
Advanced:
G06K 9/00;
G06K 9/32;
G06K 9/34;
G06K 9/36;
H04N 5/225;
Core:
more...
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| ECLA Code: |
G06K9/00F1S; H04N7/18C;
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| U.S. Class: |
382/103;
382/276;
382/286;
382/173;
382/293;
382/298;
382/300;
348/169;
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| Field of Search: |
382/103,154,286,291,293,297,300,118,162-167,298,299,173-176
348/077
358/518-540
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| Priority Number: |
| 2003-10-28 |
US2003000696238 |
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| Abstract: |
A method of and system for determining the angular orientation of an object, such as a person's head. In one aspect, a plurality of images of the object is obtained. Values are assigned to a plurality of positions in a polar plot using data from the images. A centroid is computed based on the assigned values. An angle of the centroid with respect to an origin of the polar plot indicates the angular orientation of the object.
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| Primary / Asst. Examiners: |
Wu, Jingge; Torres, José M
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| INPADOC Legal Status: |
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| Parent Case: |
RELATED APPLICATIONS
The present application contains subject matter related to co-pending U.S. patent application Ser. No. 09/784,902, filed Feb. 15, 2001, and U.S. patent application Ser. No. 10/376,435, filed Feb. 27, 2003, the entire contents of both of which are hereby incorporated by reference.
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| Family: |
None
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First Claim:
Show all 38 claims |
1. A method for determining the angular orientation of an object comprising: obtaining a plurality of images of the object wherein the plurality of images consists of three images taken by each of three cameras; assigning values to a plurality of positions in a polar plot using data from the images, the polar plot having an origin and data from each image being assigned to a corresponding sector of the polar plot and wherein said assigning includes assigning one of the images to each of three 120 degree intervals of the polar plot; and computing a centroid based on the assigned values wherein an angle of the centroid with respect to the origin indicates the angular orientation of the object.
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| Background / Summary: |
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| Drawing Descriptions: |
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| Description: |
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