WO2004040513A3 - 3d projection method - Google Patents

3d projection method Download PDF

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Publication number
WO2004040513A3
WO2004040513A3 PCT/US2003/034849 US0334849W WO2004040513A3 WO 2004040513 A3 WO2004040513 A3 WO 2004040513A3 US 0334849 W US0334849 W US 0334849W WO 2004040513 A3 WO2004040513 A3 WO 2004040513A3
Authority
WO
WIPO (PCT)
Prior art keywords
plane
image
ray
alpha blend
computing
Prior art date
Application number
PCT/US2003/034849
Other languages
French (fr)
Other versions
WO2004040513A2 (en
Inventor
Lionell K Griffith
Original Assignee
Digitome Corp
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 Digitome Corp filed Critical Digitome Corp
Priority to AU2003287447A priority Critical patent/AU2003287447A1/en
Publication of WO2004040513A2 publication Critical patent/WO2004040513A2/en
Publication of WO2004040513A3 publication Critical patent/WO2004040513A3/en

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Classifications

    • G—PHYSICS
    • G06—COMPUTING; CALCULATING OR COUNTING
    • G06T—IMAGE DATA PROCESSING OR GENERATION, IN GENERAL
    • G06T11/00—2D [Two Dimensional] image generation
    • G06T11/003—Reconstruction from projections, e.g. tomography
    • G06T11/006—Inverse problem, transformation from projection-space into object-space, e.g. transform methods, back-projection, algebraic methods
    • G—PHYSICS
    • G06—COMPUTING; CALCULATING OR COUNTING
    • G06T—IMAGE DATA PROCESSING OR GENERATION, IN GENERAL
    • G06T2211/00—Image generation
    • G06T2211/40—Computed tomography
    • G06T2211/436—Limited angle

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  • Physics & Mathematics (AREA)
  • Engineering & Computer Science (AREA)
  • General Physics & Mathematics (AREA)
  • Theoretical Computer Science (AREA)
  • Algebra (AREA)
  • Mathematical Analysis (AREA)
  • Mathematical Optimization (AREA)
  • Mathematical Physics (AREA)
  • Pure & Applied Mathematics (AREA)
  • Image Generation (AREA)
  • Apparatus For Radiation Diagnosis (AREA)
  • Image Processing (AREA)

Abstract

A digitized tomosynthesis method for projecting a 3D volumetric image of an object onto a virtual projection plane that comprises an alpha blend plane (15) subdivided into a rectangular array of pixel cells. A ray of energy defines a trace (17) representing a virtual sight path ray passing from a view point (13) through one pixel cell of the alpha blend plane (15) to define a view level image(19), wherein a 3D volumetric image of the object is projected by computing the coordinate of an object voxel referenced to the image plane, computing the image plane intercept of the ray of energy from the source through the object voxel, and forming a plurality of successively selected view level image planes (19) at the alpha blend plane (15).
PCT/US2003/034849 2002-10-31 2003-10-30 3d projection method WO2004040513A2 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
AU2003287447A AU2003287447A1 (en) 2002-10-31 2003-10-30 3d projection method

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
US42253202P 2002-10-31 2002-10-31
US60/422,532 2002-10-31

Publications (2)

Publication Number Publication Date
WO2004040513A2 WO2004040513A2 (en) 2004-05-13
WO2004040513A3 true WO2004040513A3 (en) 2005-04-07

Family

ID=32230368

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/US2003/034849 WO2004040513A2 (en) 2002-10-31 2003-10-30 3d projection method

Country Status (2)

Country Link
AU (1) AU2003287447A1 (en)
WO (1) WO2004040513A2 (en)

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
TWI509564B (en) * 2014-10-30 2015-11-21 Inst Nuclear Energy Res Atomic Energy Council Projection method of three-dimensional imaging
CN110378951A (en) * 2018-09-10 2019-10-25 天津京东深拓机器人科技有限公司 The method and apparatus for determining stacking article bearing area

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US6002739A (en) * 1998-04-28 1999-12-14 Hewlett Packard Company Computed tomography with iterative reconstruction of thin cross-sectional planes
US6724856B2 (en) * 2002-04-15 2004-04-20 General Electric Company Reprojection and backprojection methods and algorithms for implementation thereof

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US6002739A (en) * 1998-04-28 1999-12-14 Hewlett Packard Company Computed tomography with iterative reconstruction of thin cross-sectional planes
US6724856B2 (en) * 2002-04-15 2004-04-20 General Electric Company Reprojection and backprojection methods and algorithms for implementation thereof

Also Published As

Publication number Publication date
AU2003287447A8 (en) 2004-05-25
WO2004040513A2 (en) 2004-05-13
AU2003287447A1 (en) 2004-05-25

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