EP2251849A3 - Method for improved recognition of conduit-type objects - Google Patents
Method for improved recognition of conduit-type objects Download PDFInfo
- Publication number
- EP2251849A3 EP2251849A3 EP10002260A EP10002260A EP2251849A3 EP 2251849 A3 EP2251849 A3 EP 2251849A3 EP 10002260 A EP10002260 A EP 10002260A EP 10002260 A EP10002260 A EP 10002260A EP 2251849 A3 EP2251849 A3 EP 2251849A3
- Authority
- EP
- European Patent Office
- Prior art keywords
- measuring points
- distance
- potential line
- aircraft
- projected
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Granted
Links
- 238000000034 method Methods 0.000 title abstract 3
- 230000009466 transformation Effects 0.000 abstract 2
- 238000001514 detection method Methods 0.000 abstract 1
- 238000010183 spectrum analysis Methods 0.000 abstract 1
Classifications
-
- G—PHYSICS
- G08—SIGNALLING
- G08G—TRAFFIC CONTROL SYSTEMS
- G08G5/00—Traffic control systems for aircraft, e.g. air-traffic control [ATC]
- G08G5/0073—Surveillance aids
- G08G5/0086—Surveillance aids for monitoring terrain
Landscapes
- Engineering & Computer Science (AREA)
- Radar, Positioning & Navigation (AREA)
- Remote Sensing (AREA)
- Aviation & Aerospace Engineering (AREA)
- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Length Measuring Devices By Optical Means (AREA)
- Image Processing (AREA)
Abstract
Die Erfindung betrifft ein Verfahren zur verbesserten Erkennung von leitungsartigen Objekten in einer vor einem Fluggerät befindlichen Umgebung, wobei aus den Entfernungswerten eines mittels eines Entfernungssensors erzeugten Entfernungsbildes dieser Umgebung unter Berücksichtigung der Position und Lage des Fluggeräts eine Menge von dreidimensionalen Messpunkten in einem geodätischen Koordinatensystem erzeugt wird, aus welcher unter Verwendung bekannter Filtermethoden potentielle Leitungsmesspunkte extrahiert werden, wobei in einem ersten Schritt die potentiellen Leitungsmesspunkte in eine horizontale Ebene projiziert werden und mittels einer polynomialen Phasentransformation und einer nachfolgenden spektralen Analyse Geradenverläufe identifiziert werden und in einem zweiten Schritt die potentiellen Leitungsmesspunkte auf und in einem vorgebbaren Abstand zu einer im ersten Schritt gefundenen Geraden in eine vertikale Ebene zu der horizontalen Ebene und der jeweiligen Geraden aus dem ersten Schritt projiziert werden und mittels einer quadratischen Formtransformation Katenoiden- oder Parabelverläufe identifiziert werden.The invention relates to a method for the improved detection of line-like objects in an environment in front of an aircraft, wherein a set of three-dimensional measuring points in a geodetic coordinate system is generated from the distance values of a distance image generated by a distance sensor of this environment, taking into account the position and location of the aircraft from which potential line measuring points are extracted using known filter methods, wherein in a first step the potential line measuring points are projected into a horizontal plane and by means of a polynomial phase transformation and a subsequent spectral analysis straight lines are identified and in a second step the potential line measuring points on and in a predeterminable distance to a straight line found in the first step in a vertical plane to the horizontal plane and the respective straight line from d projected in the first step and are identified by means of a quadratic shape transformation Katenoiden- or parabolic courses.
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE102009020636.1A DE102009020636B4 (en) | 2009-05-09 | 2009-05-09 | Method for improved detection of line-type objects |
Publications (3)
Publication Number | Publication Date |
---|---|
EP2251849A2 EP2251849A2 (en) | 2010-11-17 |
EP2251849A3 true EP2251849A3 (en) | 2012-08-08 |
EP2251849B1 EP2251849B1 (en) | 2016-10-12 |
Family
ID=42289768
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP10002260.7A Not-in-force EP2251849B1 (en) | 2009-05-09 | 2010-03-05 | Method for improved recognition of conduit-type objects |
Country Status (2)
Country | Link |
---|---|
EP (1) | EP2251849B1 (en) |
DE (1) | DE102009020636B4 (en) |
Families Citing this family (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN104849708B (en) * | 2015-05-18 | 2017-03-08 | 中国民航大学 | High speed machine moving target parameter estimation method based on the conversion of frequency domain polynomial-phase |
Citations (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US20080007708A1 (en) * | 2005-07-20 | 2008-01-10 | Eurocopter | Method of Detecting Suspended Filamentary Objects by Telemetry |
Family Cites Families (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE19605218C1 (en) | 1996-02-13 | 1997-04-17 | Dornier Gmbh | Obstacle warning system for low-flying aircraft |
DE19828318C2 (en) | 1998-06-25 | 2001-02-22 | Eurocopter Deutschland | Wire highlighting |
DE10055572C1 (en) | 2000-11-09 | 2002-01-24 | Astrium Gmbh | Real-time overhead line identification method for low-flying aircraft uses evaluation of image data provided by image sensor scanning field of view ahead of aircraft |
DE102005047273B4 (en) | 2005-10-01 | 2008-01-03 | Eads Deutschland Gmbh | Method for supporting low-level flights |
-
2009
- 2009-05-09 DE DE102009020636.1A patent/DE102009020636B4/en not_active Expired - Fee Related
-
2010
- 2010-03-05 EP EP10002260.7A patent/EP2251849B1/en not_active Not-in-force
Patent Citations (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US20080007708A1 (en) * | 2005-07-20 | 2008-01-10 | Eurocopter | Method of Detecting Suspended Filamentary Objects by Telemetry |
Also Published As
Publication number | Publication date |
---|---|
DE102009020636B4 (en) | 2017-09-28 |
EP2251849B1 (en) | 2016-10-12 |
DE102009020636A1 (en) | 2010-11-18 |
EP2251849A2 (en) | 2010-11-17 |
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