WO1986001920A1 - Target discrimination utilizing median filters - Google Patents

Target discrimination utilizing median filters Download PDF

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Publication number
WO1986001920A1
WO1986001920A1 PCT/US1985/001532 US8501532W WO8601920A1 WO 1986001920 A1 WO1986001920 A1 WO 1986001920A1 US 8501532 W US8501532 W US 8501532W WO 8601920 A1 WO8601920 A1 WO 8601920A1
Authority
WO
WIPO (PCT)
Prior art keywords
output signals
size range
whose sizes
signals indicative
objects whose
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.)
Ceased
Application number
PCT/US1985/001532
Other languages
French (fr)
Other versions
WO1986001920A2 (en
Inventor
Jack M Sacks
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Raytheon Co
Original Assignee
Hughes Aircraft Co
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Hughes Aircraft Co filed Critical Hughes Aircraft Co
Priority to DE8585905014T priority Critical patent/DE3583292D1/en
Publication of WO1986001920A2 publication Critical patent/WO1986001920A2/en
Publication of WO1986001920A1 publication Critical patent/WO1986001920A1/en
Anticipated expiration legal-status Critical
Ceased legal-status Critical Current

Links

Classifications

    • G—PHYSICS
    • G06—COMPUTING OR CALCULATING; COUNTING
    • G06T—IMAGE DATA PROCESSING OR GENERATION, IN GENERAL
    • G06T7/00—Image analysis
    • G06T7/60—Analysis of geometric attributes

Landscapes

  • Physics & Mathematics (AREA)
  • Engineering & Computer Science (AREA)
  • Geometry (AREA)
  • Computer Vision & Pattern Recognition (AREA)
  • General Physics & Mathematics (AREA)
  • Theoretical Computer Science (AREA)
  • Image Processing (AREA)
  • Image Analysis (AREA)

Abstract

Apparatus for processing applied signals indicative of an image scene in order to provide output signals representative of objects in the scene whose sizes are within a predetermined size range. Combinations of median and anti-median filters are employed in serial and parallel configurations to produce the desired size filtering. The basic system comprises first filter means (31) for providing first output signals indicative of objects whose sizes are within a first preselected size range. Second filter means (34) are employed which provide second output signals indicative of objects whose sizes are within a second preselected size range. At least one of the two preselected size ranges contain object sizes within the predetermined size range. Circuit means (35) are provided coupling the output signals from the two filters in a manner which generates output signals indicative of objects whose sizes are within the predetermined range (S1-S2). A method of processing applied signals to generate output signals containing objects whose sizes are within a predetermined size range is also disclosed.
PCT/US1985/001532 1984-09-21 1985-08-12 Target discrimination utilizing median filters Ceased WO1986001920A1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
DE8585905014T DE3583292D1 (en) 1984-09-21 1985-08-12 TARGET DISCRIMINATION USING MEDIUM VALUE FILTERS.

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
US653,114 1984-09-21
US06/653,114 US4603430A (en) 1984-09-21 1984-09-21 Target discrimination utilizing median filters

Publications (2)

Publication Number Publication Date
WO1986001920A2 WO1986001920A2 (en) 1986-03-27
WO1986001920A1 true WO1986001920A1 (en) 1986-03-27

Family

ID=24619550

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/US1985/001532 Ceased WO1986001920A1 (en) 1984-09-21 1985-08-12 Target discrimination utilizing median filters

Country Status (6)

Country Link
US (1) US4603430A (en)
EP (1) EP0200741B1 (en)
JP (1) JPS62500268A (en)
DE (1) DE3583292D1 (en)
IL (1) IL76123A (en)
WO (1) WO1986001920A1 (en)

Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2604321A1 (en) * 1986-09-19 1988-03-25 Messerschmitt Boelkow Blohm Image evaluation device for target recognition
DE3826285A1 (en) * 1988-07-30 1990-02-01 Univ Chicago Method and arrangement for determining abnormal anatomic regions in a digital X-ray photograph (image)
EP0504633A3 (en) * 1991-03-22 1993-04-21 Hughes Aircraft Company Minimum difference processor
EP0615205A3 (en) * 1993-03-08 1994-11-30 Canon Kk Image processing apparatus and recording/reproducing apparatus.
DE19849764A1 (en) * 1998-10-28 2000-05-11 Siemens Ag Diagnosis arrangement providing pictures e.g. for kidney examination using X-ray source
US9165200B2 (en) 2010-07-21 2015-10-20 Mbda Uk Limited Image processing for prioritizing potential objects of interest in a field of view

Families Citing this family (29)

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Publication number Priority date Publication date Assignee Title
US4739401A (en) * 1985-01-25 1988-04-19 Hughes Aircraft Company Target acquisition system and method
US4868773A (en) * 1985-03-15 1989-09-19 Purdue Research Foundation Digital filtering by threshold decomposition
JPH069061B2 (en) * 1986-03-26 1994-02-02 富士写真フイルム株式会社 Smoothing method for image data
US5712807A (en) * 1987-10-21 1998-01-27 Bangham; James Andrew Pulse analyzing method and apparatus
US5218649A (en) * 1990-05-04 1993-06-08 U S West Advanced Technologies, Inc. Image enhancement system
US5150426A (en) * 1990-11-20 1992-09-22 Hughes Aircraft Company Moving target detection method using two-frame subtraction and a two quadrant multiplier
US5062142A (en) * 1990-12-14 1991-10-29 General Electric Company Data processor producing a medial axis representation of an extended region
US5195544A (en) * 1991-12-11 1993-03-23 Vince Campagna Nail catcher case
US5261012A (en) * 1992-05-11 1993-11-09 General Electric Company Method and system for thinning images
US5371542A (en) * 1992-06-23 1994-12-06 The United States Of America As Represented By The Secretary Of The Navy Dual waveband signal processing system
US5917733A (en) * 1993-01-16 1999-06-29 Cambridge Consultants Limited Pulse analysis using ordinal value filtering
US6118886A (en) * 1993-03-30 2000-09-12 The United States Of America As Represented By The United States Department Of Energy Automatic target recognition apparatus and method
US5740266A (en) * 1994-04-15 1998-04-14 Base Ten Systems, Inc. Image processing system and method
CA2459821C (en) * 2001-09-07 2011-01-11 Intergraph Hardware Technologies Company Image stabilization using color matching
US7394944B2 (en) * 2003-04-11 2008-07-01 Seiko Epson Corporation Method and system for finding spatial medians in a sliding window environment
US8031978B2 (en) * 2004-06-30 2011-10-04 Hitachi Aloka Medical, Ltd. Method and apparatus of image processing to detect edges
US20060008178A1 (en) * 2004-07-08 2006-01-12 Seeger Adam A Simulation of scanning beam images by combination of primitive features extracted from a surface model
US7912311B2 (en) * 2005-03-21 2011-03-22 Intel Corporation Techniques to filter media signals
US8160382B2 (en) * 2007-10-15 2012-04-17 Lockheed Martin Corporation Method of object recognition in image data using combined edge magnitude and edge direction analysis techniques
US8738678B2 (en) 2009-10-29 2014-05-27 Raytheon Company Methods and systems for determining an enhanced rank order value of a data set
US8416986B2 (en) * 2009-10-29 2013-04-09 Raytheon Company Methods and systems for processing data using non-linear slope compensation
US8650188B1 (en) 2011-08-31 2014-02-11 Google Inc. Retargeting in a search environment
US10956485B2 (en) 2011-08-31 2021-03-23 Google Llc Retargeting in a search environment
US10630751B2 (en) 2016-12-30 2020-04-21 Google Llc Sequence dependent data message consolidation in a voice activated computer network environment
US9002133B2 (en) * 2013-02-27 2015-04-07 Sharp Laboratories Of America, Inc. Multi layered image enhancement technique
US10431209B2 (en) 2016-12-30 2019-10-01 Google Llc Feedback controller for data transmissions
US9703757B2 (en) * 2013-09-30 2017-07-11 Google Inc. Automatically determining a size for a content item for a web page
US10614153B2 (en) 2013-09-30 2020-04-07 Google Llc Resource size-based content item selection
RU2734655C1 (en) * 2020-03-17 2020-10-21 федеральное государственное бюджетное образовательное учреждение высшего образования "Новгородский государственный университет имени Ярослава Мудрого" Method of selecting image of object on non-homogeneous background

Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4472738A (en) * 1981-05-30 1984-09-18 Nippon Kogaku K.K. Pattern testing apparatus

Family Cites Families (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB1573142A (en) * 1976-01-23 1980-08-13 Hitachi Ltd Apparatus and method for providing information relating to shape and/or position of an object

Patent Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4472738A (en) * 1981-05-30 1984-09-18 Nippon Kogaku K.K. Pattern testing apparatus

Non-Patent Citations (2)

* Cited by examiner, † Cited by third party
Title
AFIPS Proceedings of the National Computer Conference, Anaheim, Volume 49, 19-22 May 1980 G.R. NUDD: "Image Understanding Architecture", pages 377-390, see page 383, right-hand column, lines 11-15 (cited in the application) *
IBM Technical Disclosure Bulletin, Volume 17, No. 3, August 1974 L.S. HEIM et al.: "Digital Filter for Bar-Code Scanners", see pages 726-727 *

Cited By (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2604321A1 (en) * 1986-09-19 1988-03-25 Messerschmitt Boelkow Blohm Image evaluation device for target recognition
DE3826285A1 (en) * 1988-07-30 1990-02-01 Univ Chicago Method and arrangement for determining abnormal anatomic regions in a digital X-ray photograph (image)
EP0504633A3 (en) * 1991-03-22 1993-04-21 Hughes Aircraft Company Minimum difference processor
TR26028A (en) * 1991-03-22 1993-11-01 Hughes Aircraft Co A METHOD FOR FILTERING AN IMAGE, AND AS A DEVICE AND MORE SPECIALLY, THE IMAGE AND TARGET IDENTIFICATION SYSTEM MEANS PREVENT THIS FONT TO FILTER AND IMPROVE THIS FUND
EP0615205A3 (en) * 1993-03-08 1994-11-30 Canon Kk Image processing apparatus and recording/reproducing apparatus.
US5502710A (en) * 1993-03-08 1996-03-26 Canon Kabushiki Kaisha Recording bit extraction by calculating curvature of pixels in scanning probe microscope
DE19849764A1 (en) * 1998-10-28 2000-05-11 Siemens Ag Diagnosis arrangement providing pictures e.g. for kidney examination using X-ray source
US6263231B1 (en) 1998-10-28 2001-07-17 Siemens Aktiengesellschaft Diagnostic imaging apparatus having an image signal processor with spatial-frequency filtering with a settable bandpass characteristic
DE19849764B4 (en) * 1998-10-28 2004-10-21 Siemens Ag Imaging diagnostic facility
US9165200B2 (en) 2010-07-21 2015-10-20 Mbda Uk Limited Image processing for prioritizing potential objects of interest in a field of view

Also Published As

Publication number Publication date
IL76123A (en) 1990-11-05
IL76123A0 (en) 1985-12-31
EP0200741B1 (en) 1991-06-19
DE3583292D1 (en) 1991-07-25
US4603430A (en) 1986-07-29
EP0200741A1 (en) 1986-11-12
JPS62500268A (en) 1987-01-29

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