WO1998052011A3 - Systems and methods for analyzing phantom images - Google Patents

Systems and methods for analyzing phantom images Download PDF

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Publication number
WO1998052011A3
WO1998052011A3 PCT/US1998/009775 US9809775W WO9852011A3 WO 1998052011 A3 WO1998052011 A3 WO 1998052011A3 US 9809775 W US9809775 W US 9809775W WO 9852011 A3 WO9852011 A3 WO 9852011A3
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WO
WIPO (PCT)
Prior art keywords
mqcs
images
map
phantom
localization
Prior art date
Application number
PCT/US1998/009775
Other languages
French (fr)
Other versions
WO1998052011A9 (en
WO1998052011A2 (en
Inventor
Kenneth W Brooks
Original Assignee
Univ Emory
Kenneth W Brooks
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 Univ Emory, Kenneth W Brooks filed Critical Univ Emory
Priority to AU75712/98A priority Critical patent/AU7571298A/en
Publication of WO1998052011A2 publication Critical patent/WO1998052011A2/en
Publication of WO1998052011A9 publication Critical patent/WO1998052011A9/en
Publication of WO1998052011A3 publication Critical patent/WO1998052011A3/en

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Classifications

    • G—PHYSICS
    • G06—COMPUTING; CALCULATING OR COUNTING
    • G06T—IMAGE DATA PROCESSING OR GENERATION, IN GENERAL
    • G06T7/00—Image analysis
    • G06T7/0002—Inspection of images, e.g. flaw detection
    • G06T7/0012—Biomedical image inspection

Abstract

A significant metric in federal mammography quality standards is the phantom image quality assessment. A Mammography Quality Control System (MQCS) (20, 20') performs automated image analyses for the American College of Radiology (ACR) mammographic accreditation phantom (MAP) images. The MQCS (20, 20') uses a Fast Fourier Transform unit (41) for low-level processing combined with derivative filters for intermediate-level processing to provide translation and rotation independent localization of test objects in the MAP images. The MQCS (20, 20') uses a Bayesian classifier (47) using threshold contrast. The fifty percent visibility contrast thresholds established by the trained observer's responses were: fibrils 1.010; microcalcifications 1.156; and nodules 1.016. Using these values and given automated localization of test objects, the MQCS (20, 20') scores images with better consistency than the diagnostic physicists. The MQCS (20, 20') thus provides an operator independent, machine-based scoring of MAP images that is used to help eliminate the effect of observer variability.
PCT/US1998/009775 1997-05-14 1998-05-14 Systems and methods for analyzing phantom images WO1998052011A2 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
AU75712/98A AU7571298A (en) 1997-05-14 1998-05-14 Systems and methods for analyzing phantom images

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
US4700897P 1997-05-14 1997-05-14
US60/047,008 1997-05-14

Publications (3)

Publication Number Publication Date
WO1998052011A2 WO1998052011A2 (en) 1998-11-19
WO1998052011A9 WO1998052011A9 (en) 1999-04-01
WO1998052011A3 true WO1998052011A3 (en) 1999-06-03

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Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/US1998/009775 WO1998052011A2 (en) 1997-05-14 1998-05-14 Systems and methods for analyzing phantom images

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AU (1) AU7571298A (en)
WO (1) WO1998052011A2 (en)

Families Citing this family (11)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP1267307A1 (en) * 2001-06-15 2002-12-18 ZN Vision Technologies AG Texture analysis
US7298876B1 (en) 2002-11-04 2007-11-20 R2 Technology, Inc. Method and apparatus for quality assurance and quality control in radiological equipment using automatic analysis tools
CN104361574B (en) * 2014-10-14 2017-02-15 南京信息工程大学 No-reference color image quality assessment method on basis of sparse representation
CN104392446A (en) * 2014-11-20 2015-03-04 江南大学 Improved PSNR (Peak Signal to Noise Ratio)-based DCT (Discrete Cosine Transformation) domain non-reference blurred image quality evaluation method
CN105357411B (en) * 2015-10-29 2018-07-31 小米科技有限责任公司 The method and device of detection image quality
US10554779B2 (en) 2017-01-31 2020-02-04 Walmart Apollo, Llc Systems and methods for webpage personalization
US11609964B2 (en) 2017-01-31 2023-03-21 Walmart Apollo, Llc Whole page personalization with cyclic dependencies
US11010784B2 (en) 2017-01-31 2021-05-18 Walmart Apollo, Llc Systems and methods for search query refinement
CN109344881B (en) * 2018-09-11 2021-03-09 中国科学技术大学 Extended classifier based on space-time continuity
US10949224B2 (en) 2019-01-29 2021-03-16 Walmart Apollo Llc Systems and methods for altering a GUI in response to in-session inferences
CN110455497B (en) * 2019-06-18 2021-03-23 东南大学 Fourier transform-based visibility evaluation method for phantom array

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4599742A (en) * 1983-02-18 1986-07-08 Tokyo Shibaura Denki Kabushiki Kaisha X-ray diagnostic apparatus
US5361307A (en) * 1993-03-25 1994-11-01 General Electric Company Correlation methods of identifying defects in imaging devices
US5446799A (en) * 1993-11-01 1995-08-29 Picker International, Inc. CT Scanner with improved processing efficiency 180 degrees+ fan angle reconstruction system
US5469353A (en) * 1993-11-26 1995-11-21 Access Radiology Corp. Radiological image interpretation apparatus and method
US5565678A (en) * 1995-06-06 1996-10-15 Lumisys, Inc. Radiographic image quality assessment utilizing a stepped calibration target

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4599742A (en) * 1983-02-18 1986-07-08 Tokyo Shibaura Denki Kabushiki Kaisha X-ray diagnostic apparatus
US5361307A (en) * 1993-03-25 1994-11-01 General Electric Company Correlation methods of identifying defects in imaging devices
US5446799A (en) * 1993-11-01 1995-08-29 Picker International, Inc. CT Scanner with improved processing efficiency 180 degrees+ fan angle reconstruction system
US5469353A (en) * 1993-11-26 1995-11-21 Access Radiology Corp. Radiological image interpretation apparatus and method
US5565678A (en) * 1995-06-06 1996-10-15 Lumisys, Inc. Radiographic image quality assessment utilizing a stepped calibration target

Also Published As

Publication number Publication date
AU7571298A (en) 1998-12-08
WO1998052011A9 (en) 1999-04-01
WO1998052011A2 (en) 1998-11-19

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