Patent US5018219A successfully refreshed from Google Patents.
US5018219A
Expired / Lapsed
US
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Object recognize apparatus
Assignee: Hitachi Ltd
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Filing: 1989-02-06
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Granted: 1991-05-21
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Expires: 2009-02-06
Abstract
Abstract An object recognize apparatus suitable for recognition of a complex object constituted with a plurality of elements. When specifying a recognition object, a plurality of elements constituting the finally required recognition object are respectively designated as recognition objects, and when specifying an upper-level recognition object, lower-level recognition objects thereof are designated. Furthermore, for each lower-level recognition object, geometric features necessary for the recognition are specified. In an analysis of image data, the lower-level recognition objects are first detected by use of the geometric features so as to next attain the upper-level recognition object based on results of the detection. As a result, a complex object existing at an arbitrary position can be judged and the position thereof is obtained.
Inventors
- 👤 Kichie Matsuzaki
- 👤 Mitsunobu Isobe
- 👤 Kenzo Takeichi
- 👤 Ryouichi Hisatomi
- 👤 Masasi Kudou
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-01 23:08
CPC Classifications
G; G06; G06V; G06V10/00; G06V10/40; G06F; G06F18/00; G06F18/40
Claims Analysis
Total Claims: 5
Claim 1
Independent Claim
223 words
An object recognition apparatus comprising: image input means for imaging an object an arbitrary position so as to input an image; means for specifying a recognition object as a set including a plurality of lower-level recognition objects; means for setting, for each of said lower-level recognition objects, at least a preprocessing operation of said each lower-level recognition object, features and contour shape of said each lower-level recognition object as attribute data corresponding to a judgment operation of said each lower-level recognition object and orientation base, position base, measurement items, collision check and coordinate conversion parameters as optional data of said each lower-level recognition object; means for performing a processing for said each lower-level recognition object according to said preprocessing operation, said judgment operation and said measurement items of said each lower-level recognition object; means for obtaining geometric features from said inputted image by performing a preprocessing according to said preprocessing operation of said each lower-level recognition object; means for effecting a judgment and detection of said lower-level recognition objects by comparing said geometric features obtained from said inputted image to features and contour shape of said each lower-level recognition object corresponding to said judgment operation; and means for detecting a recognition object including said lower-level recognition objects on the basis of results of said detection effected on said each lower-level recognition level object.
Claim 2
Dependent Claim
223 words
An object recognition apparatus comprising: image input means for imaging an object an arbitrary position so as to input an image; means for specifying a recognition object as a set including a plurality of lower-level recognition objects; means for setting, for each of said lower-level recognition objects, at least a preprocessing operation of said each lower-level recognition object, features and contour shape of said each lower-level recognition object as attribute data corresponding to a judgment operation of said each lower-level recognition object and orientation base, position base, measurement items, collision check and coordinate conversion parameters as optional data of said each lower-level recognition object; means for performing a processing for said each lower-level recognition object according to said preprocessing operation, said judgment operation and said measurement items of said each lower-level recognition object; means for obtaining geometric features from said inputted image by performing a preprocessing according to said preprocessing operation of said each lower-level recognition object; means for effecting a judgment and detection of said lower-level recognition objects by comparing said geometric features obtained from said inputted image to features and contour shape of said each lower-level recognition object corresponding to said judgment operation; and means for detecting a recognition object including said lower-level recognition objects on the basis of results of said detection effected on said each lower-level recognition level object.
Claim 3
Dependent Claim
52 words
An object recognize apparatus according to claim 1 further including: means for retrieving the lower-level recognition objects constituting said recognition object; and means for effecting the detection beginning from a lower-level recognition object based on a retrieval result so as to finally detect upper-level recognition objects constituted with the lower-level recognition objects.
Claim 4
Dependent Claim
53 words
An object recognize apparatus according to claim 1 wherein types of said lower-level recognition objects includes a plane object having an area with an arbitrary shape, a line object, a point object, a stripe object having band-like pattern items with a predetermined distance therebetween, and an amorphous object not having a particular shape.
Claim 5
Dependent Claim
156 words
An object recognize apparatus according to claim 3 wherein: said types of recognition objects specified as a set of lower-level recognition objects include a compound of two points, a compound of a point and a line, a compound of two lines and a compound of a plurality of objects; and wherein the compound of two points is treated as a line object including the two points respectively as a starting point and an ending point, the compound of a point and a line is handled as a line object defined by a perpendicular drawing from the point onto the line, and the compound of two lines is treated as point object defined by an intersection of the two lines or as a line object defined by a distance between the two lines, whereby the recognition objects are defined in a hierarchical structure including lower-level objects of recognition objective items specified as a set of recognition objects.
References Cited (Backward Citations)
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1994-05-20 | 1994-11-19 | 1995-05-21 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1998-05-20 | 1998-11-19 | 1999-05-21 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 2002-05-20 | 2002-11-19 | 2003-05-21 | $7700.00 | Window Closed / Lapsed |