GB2460994A - Shear displacement depth of field - Google Patents

Shear displacement depth of field Download PDF

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Publication number
GB2460994A
GB2460994A GB0918780A GB0918780A GB2460994A GB 2460994 A GB2460994 A GB 2460994A GB 0918780 A GB0918780 A GB 0918780A GB 0918780 A GB0918780 A GB 0918780A GB 2460994 A GB2460994 A GB 2460994A
Authority
GB
United Kingdom
Prior art keywords
depth
aperture
lens positions
image sample
sheared
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
Application number
GB0918780A
Other versions
GB2460994B (en
GB0918780D0 (en
Inventor
Robert Cook
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.)
Pixar
Original Assignee
Pixar
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 Pixar filed Critical Pixar
Publication of GB0918780D0 publication Critical patent/GB0918780D0/en
Publication of GB2460994A publication Critical patent/GB2460994A/en
Application granted granted Critical
Publication of GB2460994B publication Critical patent/GB2460994B/en
Expired - Fee Related legal-status Critical Current
Anticipated expiration legal-status Critical

Links

Classifications

    • G—PHYSICS
    • G02—OPTICS
    • G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
    • G02B27/00—Optical systems or apparatus not provided for by any of the groups G02B1/00 - G02B26/00, G02B30/00
    • G02B27/0075—Optical systems or apparatus not provided for by any of the groups G02B1/00 - G02B26/00, G02B30/00 with means for altering, e.g. increasing, the depth of field or depth of focus
    • G—PHYSICS
    • G06—COMPUTING; CALCULATING OR COUNTING
    • G06T—IMAGE DATA PROCESSING OR GENERATION, IN GENERAL
    • G06T15/00—3D [Three Dimensional] image rendering
    • G06T15/10—Geometric effects

Landscapes

  • Physics & Mathematics (AREA)
  • Engineering & Computer Science (AREA)
  • General Physics & Mathematics (AREA)
  • Geometry (AREA)
  • Computer Graphics (AREA)
  • Theoretical Computer Science (AREA)
  • Optics & Photonics (AREA)
  • Image Generation (AREA)
  • Microscoopes, Condenser (AREA)

Abstract

Depth of field effects for computer generated images are generated by assigning lens positions to image sample points. For each image sample point, scene geometry shears towards the center of the sample point's aperture to account for its assigned lens positions. The sheared scene geometry is sampled from a single point of the aperture, such as the aperture center image samples with different assigned lens positions sample different sheared versions of the scene, producing a depth of field effect. Scene geometry is sheared according to a function of its depth and the image sample point's assigned lens position. The depth of field effect can be characterized by any arbitrary function of depth, including static or varying aperture size and focal length, which allows for depth of field effects not possible with typical real-world optical systems image sample points, lens positions specified in a pseudo-random and/or stratified manner.
GB0918780.8A 2007-05-25 2008-05-23 Shear displacement depth of field Expired - Fee Related GB2460994B (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
US94037907P 2007-05-25 2007-05-25
PCT/US2008/064709 WO2008147999A1 (en) 2007-05-25 2008-05-23 Shear displacement depth of field

Publications (3)

Publication Number Publication Date
GB0918780D0 GB0918780D0 (en) 2009-12-09
GB2460994A true GB2460994A (en) 2009-12-23
GB2460994B GB2460994B (en) 2012-05-16

Family

ID=40075518

Family Applications (2)

Application Number Title Priority Date Filing Date
GB1119388.5A Expired - Fee Related GB2483386B (en) 2007-05-25 2008-05-23 Shear displacement depth of field
GB0918780.8A Expired - Fee Related GB2460994B (en) 2007-05-25 2008-05-23 Shear displacement depth of field

Family Applications Before (1)

Application Number Title Priority Date Filing Date
GB1119388.5A Expired - Fee Related GB2483386B (en) 2007-05-25 2008-05-23 Shear displacement depth of field

Country Status (2)

Country Link
GB (2) GB2483386B (en)
WO (1) WO2008147999A1 (en)

Families Citing this family (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US8194995B2 (en) 2008-09-30 2012-06-05 Sony Corporation Fast camera auto-focus
EP3557532A1 (en) * 2018-04-20 2019-10-23 Thomson Licensing Device and method for scene rendering with a depth-of-field effect
CN112037363B (en) * 2019-10-22 2021-05-14 山东新亮电子科技有限公司 Driving record big data auxiliary analysis system
CA3199438A1 (en) * 2020-11-18 2022-05-27 Leia Inc. Multiview display system and method employing multiview image convergence plane tilt

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20010050713A1 (en) * 2000-01-28 2001-12-13 Naoki Kubo Device and method for generating timing signals of different kinds
US20040257375A1 (en) * 2000-09-06 2004-12-23 David Cowperthwaite Occlusion reducing transformations for three-dimensional detail-in-context viewing
US20050248569A1 (en) * 2004-05-06 2005-11-10 Pixar Method and apparatus for visibility determination and processing

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20010050713A1 (en) * 2000-01-28 2001-12-13 Naoki Kubo Device and method for generating timing signals of different kinds
US20040257375A1 (en) * 2000-09-06 2004-12-23 David Cowperthwaite Occlusion reducing transformations for three-dimensional detail-in-context viewing
US20050248569A1 (en) * 2004-05-06 2005-11-10 Pixar Method and apparatus for visibility determination and processing

Also Published As

Publication number Publication date
WO2008147999A1 (en) 2008-12-04
GB2460994B (en) 2012-05-16
GB2483386A (en) 2012-03-07
GB201119388D0 (en) 2011-12-21
GB2483386B (en) 2012-08-15
GB0918780D0 (en) 2009-12-09

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Legal Events

Date Code Title Description
PCNP Patent ceased through non-payment of renewal fee

Effective date: 20130523