Patent US5647019A successfully refreshed from Google Patents.
US5647019A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Method of identifying a position of object in camera image
Assignee: Fuji Electric Co Ltd
•
Filing: 1993-05-28
•
Granted: 1997-07-08
•
Expires: 2013-05-28
Abstract
Abstract The present invention relates to a method of identifying object images displayed in a camera image, the method comprising the step of, comparing a predetermined point mapped in the camera image in a spherical polar coordinates with a position of the camera as an origin, with a plurality of cursor windows including the object images respectively in the camera image, in which vertexes and center point of each window are mapped in the camera image in a spherical polar coordinates with a position of the camera as an origin, so that an object included in a cursor window corresponding to the predetermined point is identified.
Inventors
- 👤 Mitsutoshi Iino
- 👤 Shiro Nakatao
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-09 19:29
CPC Classifications
G; G06; G06T; G06T7/00; G06T7/70; G06T2207/00; G06T2207/30; G06T2207/30244
Claims Analysis
Total Claims: 3
Claim 1
Independent Claim
158 words
A method of identifying images of three-dimensional objects displayed by a camera as a two-dimensional camera image, comprising the steps of: mapping coordinates of vertexes and a center point of a cursor window, including at least one of said objects from the camera image, the cursor window and the center point being mapped from two-dimensional coordinates into spherical polar coordinates with a position of said camera as an origin for the spherical polar coordinates; pointing to a point in said camera image, said pointed-to point being mapped from said camera image to spherical polar coordinates with the position of said camera as the origin, the spherical polar coordinates of said pointed-to point being adjusted in accordance with at least one of an elevation angle, horizontal angle, and view angle of said camera; and comparing said mapped pointed-to point with said mapped cursor window vertexes to identify an object included in the cursor window corresponding to said pointed-to point.
Claim 2
Independent Claim
158 words
A method of identifying images of three-dimensional objects displayed by a camera as a two-dimensional camera image, comprising the steps of: mapping coordinates of vertexes and a center point of a cursor window, including at least one of said objects from the camera image, the cursor window and the center point being mapped from two-dimensional coordinates into spherical polar coordinates with a position of said camera as an origin for the spherical polar coordinates; pointing to a point in said camera image, said pointed-to point being mapped from said camera image to spherical polar coordinates with the position of said camera as the origin, the spherical polar coordinates of said pointed-to point being adjusted in accordance with at least one of an elevation angle, horizontal angle, and view angle of said camera; and comparing said mapped pointed-to point with said mapped cursor window vertexes to identify an object included in the cursor window corresponding to said pointed-to point.
Claim 3
Dependent Claim
21 words
A method according to claim 1, wherein said cursor window has a shape circumscribing the at least one of said objects.
References Cited (Backward Citations)
US4143003A
Cited
US4179693A
Cited
US4460958A
Cited
US4825394A
Cited
US4704694A
Cited
US4731864A
Cited
US4890249A
Cited
US5047931A
Cited
US5129054A
Cited
US5444792A
Cited
US5185667A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 2000-07-07 | 2001-01-06 | 2001-07-08 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 2004-07-07 | 2005-01-06 | 2005-07-08 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 2008-07-07 | 2009-01-06 | 2009-07-08 | $7700.00 | Window Closed / Lapsed |