US5845006A
Expired / Lapsed
US
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Method of processing image formation
Assignee: HIRAISHI JIRO PRESIDENT OF KOGYOGIJUTSUIN
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Filing: 1996-07-18
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Granted: 1998-12-01
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Expires: 2016-07-18
Abstract
Abstract A method of processing image information is disclosed, for detecting the movement of an object with a simplifed system structure, and high speed treatment. The method is comprised of the steps of entry of a stereoscopic image of an object, extraction of edges of the object, and dividing it into segments based on the local feature of the image. On each segment, tracing points (sampling points) are selected, the inter-frame correlation of selected points is obtained, the three-dimensional coordinates of the points are measured, and thus the position and attitude of the object are detected, wherein the inter-frame correlation is performed by evaluating the similarity between frames based on correlation between the tangential direction of tracing points and the luminance value of the surface.
Inventors
- 👤 Yasushi Sumi
- 👤 Fumiaki Tomita
- 👤 Yutaka Ishiyama
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-05 00:00
CPC Classifications
G; G06; G06T; G06T7/00; G06T7/20; G06T7/246; G06T7/50; G06T7/55; G06T7/593; G06T7/70; G06T7/73; G06T2207/00; G06T2207/10; G06T2207/10004; G06T2207/10012; H; H04; H04N; H04N13/00; H04N13/10; H04N13/189; H04N13/194; H04N13/20; H04N13/204; H04N13/239; H04N13/296; H04N2013/0074; H04N2013/0081
Claims Analysis
Total Claims: 4
Claim 1
Independent Claim
161 words
A method of processing image information for recognizing the movement of an object on the basis of frame images obtained in a three dimensional space in time series manner comprising the steps of: entering a stereoscopic frame image of the object; extracting edges of the object from the stereoscopic image; locating characteristic points on the edges from the stereoscopic image; determining local features of the edges from the stereoscopic image; on the basis of the local features from the stereoscopic image dividing the edges into a plurality of segments, storing the segment information into a boundary representation model data structure; with reference to characteristic points, selecting tracing points on the segments; determining a three-dimensional correlation of the tracing points between frames of the tracing points; and detecting position, attitude and a kinetic parameter, the kinetic parameter consisting of a rotational component and a translational component, of said object on the basis of the three dimensional coordinates of said three-dimensional correlated point.
Claim 2
Independent Claim
161 words
A method of processing image information for recognizing the movement of an object on the basis of frame images obtained in a three dimensional space in time series manner comprising the steps of: entering a stereoscopic frame image of the object; extracting edges of the object from the stereoscopic image; locating characteristic points on the edges from the stereoscopic image; determining local features of the edges from the stereoscopic image; on the basis of the local features from the stereoscopic image dividing the edges into a plurality of segments, storing the segment information into a boundary representation model data structure; with reference to characteristic points, selecting tracing points on the segments; determining a three-dimensional correlation of the tracing points between frames of the tracing points; and detecting position, attitude and a kinetic parameter, the kinetic parameter consisting of a rotational component and a translational component, of said object on the basis of the three dimensional coordinates of said three-dimensional correlated point.
Claim 3
Dependent Claim
38 words
A method according to claim 1, wherein said inter-frame correlation is performed by evaluating the similarity between frames on the basis of correlation between the tangential direction of said tracing point and the luminance value of the surface.
Claim 4
Dependent Claim
24 words
A method according to claim 1, wherein said three-dimensional coordinates of said correlated point are measured by means of stereoscopic viewing using stereoscopic correlation.
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) | 2001-11-30 | 2002-06-01 | 2002-12-01 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 2005-11-30 | 2006-06-01 | 2006-12-01 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 2009-11-30 | 2010-06-01 | 2010-12-01 | $7700.00 | Window Closed / Lapsed |