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GB2433371B - Data processing apparatus - Google Patents

Data processing apparatus

Info

Publication number
GB2433371B
GB2433371B GB0622777A GB0622777A GB2433371B GB 2433371 B GB2433371 B GB 2433371B GB 0622777 A GB0622777 A GB 0622777A GB 0622777 A GB0622777 A GB 0622777A GB 2433371 B GB2433371 B GB 2433371B
Authority
GB
United Kingdom
Prior art keywords
processing apparatus
data processing
data
processing
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.)
Expired - Fee Related
Application number
GB0622777A
Other versions
GB0622777D0 (en
GB2433371A (en
Inventor
Edward Buckley
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.)
Light Blue Optics Ltd
Original Assignee
Light Blue Optics Ltd
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 Light Blue Optics Ltd filed Critical Light Blue Optics Ltd
Priority to GB0622777A priority Critical patent/GB2433371B/en
Priority to GB0708790A priority patent/GB2434706B/en
Publication of GB0622777D0 publication Critical patent/GB0622777D0/en
Publication of GB2433371A publication Critical patent/GB2433371A/en
Application granted granted Critical
Publication of GB2433371B publication Critical patent/GB2433371B/en
Priority to PCT/GB2007/050693 priority patent/WO2008059292A2/en
Expired - Fee Related legal-status Critical Current
Anticipated expiration legal-status Critical

Links

Classifications

    • G—PHYSICS
    • G03—PHOTOGRAPHY; CINEMATOGRAPHY; ANALOGOUS TECHNIQUES USING WAVES OTHER THAN OPTICAL WAVES; ELECTROGRAPHY; HOLOGRAPHY
    • G03H—HOLOGRAPHIC PROCESSES OR APPARATUS
    • G03H1/00—Holographic processes or apparatus using light, infrared or ultraviolet waves for obtaining holograms or for obtaining an image from them; Details peculiar thereto
    • G03H1/04—Processes or apparatus for producing holograms
    • G03H1/08—Synthesising holograms, i.e. holograms synthesized from objects or objects from holograms
    • G—PHYSICS
    • G03—PHOTOGRAPHY; CINEMATOGRAPHY; ANALOGOUS TECHNIQUES USING WAVES OTHER THAN OPTICAL WAVES; ELECTROGRAPHY; HOLOGRAPHY
    • G03H—HOLOGRAPHIC PROCESSES OR APPARATUS
    • G03H1/00—Holographic processes or apparatus using light, infrared or ultraviolet waves for obtaining holograms or for obtaining an image from them; Details peculiar thereto
    • G03H1/04—Processes or apparatus for producing holograms
    • G03H1/08—Synthesising holograms, i.e. holograms synthesized from objects or objects from holograms
    • G03H1/0841—Encoding method mapping the synthesized field into a restricted set of values representative of the modulator parameters, e.g. detour phase coding
    • G—PHYSICS
    • G06—COMPUTING OR CALCULATING; COUNTING
    • G06T—IMAGE DATA PROCESSING OR GENERATION, IN GENERAL
    • G06T15/00—3D [Three Dimensional] image rendering
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
    • H04N1/00—Scanning, transmission or reproduction of documents or the like, e.g. facsimile transmission; Details thereof
    • H04N1/40—Picture signal circuits
    • H04N1/405—Halftoning, i.e. converting the picture signal of a continuous-tone original into a corresponding signal showing only two levels
    • H04N1/4051—Halftoning, i.e. converting the picture signal of a continuous-tone original into a corresponding signal showing only two levels producing a dispersed dots halftone pattern, the dots having substantially the same size
    • H04N1/4052—Halftoning, i.e. converting the picture signal of a continuous-tone original into a corresponding signal showing only two levels producing a dispersed dots halftone pattern, the dots having substantially the same size by error diffusion, i.e. transferring the binarising error to neighbouring dot decisions
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
    • H04N5/00—Details of television systems
    • H04N5/14—Picture signal circuitry for video frequency region
    • H04N5/21—Circuitry for suppressing or minimising disturbance, e.g. moiré or halo
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
    • H04N5/00—Details of television systems
    • H04N5/74—Projection arrangements for image reproduction, e.g. using eidophor
    • G—PHYSICS
    • G03—PHOTOGRAPHY; CINEMATOGRAPHY; ANALOGOUS TECHNIQUES USING WAVES OTHER THAN OPTICAL WAVES; ELECTROGRAPHY; HOLOGRAPHY
    • G03H—HOLOGRAPHIC PROCESSES OR APPARATUS
    • G03H1/00—Holographic processes or apparatus using light, infrared or ultraviolet waves for obtaining holograms or for obtaining an image from them; Details peculiar thereto
    • G03H1/22—Processes or apparatus for obtaining an optical image from holograms
    • G03H1/2294—Addressing the hologram to an active spatial light modulator
    • G—PHYSICS
    • G03—PHOTOGRAPHY; CINEMATOGRAPHY; ANALOGOUS TECHNIQUES USING WAVES OTHER THAN OPTICAL WAVES; ELECTROGRAPHY; HOLOGRAPHY
    • G03H—HOLOGRAPHIC PROCESSES OR APPARATUS
    • G03H1/00—Holographic processes or apparatus using light, infrared or ultraviolet waves for obtaining holograms or for obtaining an image from them; Details peculiar thereto
    • G03H1/22—Processes or apparatus for obtaining an optical image from holograms
    • G03H1/2202—Reconstruction geometries or arrangements
    • G03H1/2205—Reconstruction geometries or arrangements using downstream optical component
    • G03H2001/2213—Diffusing screen revealing the real holobject, e.g. container filed with gel to reveal the 3D holobject
    • G03H2001/2215—Plane screen
    • G03H2001/2218—Plane screen being perpendicular to optical axis
    • G—PHYSICS
    • G03—PHOTOGRAPHY; CINEMATOGRAPHY; ANALOGOUS TECHNIQUES USING WAVES OTHER THAN OPTICAL WAVES; ELECTROGRAPHY; HOLOGRAPHY
    • G03H—HOLOGRAPHIC PROCESSES OR APPARATUS
    • G03H1/00—Holographic processes or apparatus using light, infrared or ultraviolet waves for obtaining holograms or for obtaining an image from them; Details peculiar thereto
    • G03H1/22—Processes or apparatus for obtaining an optical image from holograms
    • G03H1/2294—Addressing the hologram to an active spatial light modulator
    • G03H2001/2297—Addressing the hologram to an active spatial light modulator using frame sequential, e.g. for reducing speckle noise
    • G—PHYSICS
    • G03—PHOTOGRAPHY; CINEMATOGRAPHY; ANALOGOUS TECHNIQUES USING WAVES OTHER THAN OPTICAL WAVES; ELECTROGRAPHY; HOLOGRAPHY
    • G03H—HOLOGRAPHIC PROCESSES OR APPARATUS
    • G03H2226/00—Electro-optic or electronic components relating to digital holography
    • G03H2226/02—Computing or processing means, e.g. digital signal processor [DSP]
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
    • H04N5/00—Details of television systems
    • H04N5/74—Projection arrangements for image reproduction, e.g. using eidophor
    • H04N5/7416—Projection arrangements for image reproduction, e.g. using eidophor involving the use of a spatial light modulator, e.g. a light valve, controlled by a video signal

Landscapes

  • Engineering & Computer Science (AREA)
  • Multimedia (AREA)
  • Signal Processing (AREA)
  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Computer Graphics (AREA)
  • Theoretical Computer Science (AREA)
  • Holo Graphy (AREA)
GB0622777A 2006-11-15 2006-11-15 Data processing apparatus Expired - Fee Related GB2433371B (en)

Priority Applications (3)

Application Number Priority Date Filing Date Title
GB0622777A GB2433371B (en) 2006-11-15 2006-11-15 Data processing apparatus
GB0708790A GB2434706B (en) 2006-11-15 2006-11-15 Data processing apparatus
PCT/GB2007/050693 WO2008059292A2 (en) 2006-11-15 2007-11-15 Holographic data processing apparatus

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB0622777A GB2433371B (en) 2006-11-15 2006-11-15 Data processing apparatus

Publications (3)

Publication Number Publication Date
GB0622777D0 GB0622777D0 (en) 2006-12-27
GB2433371A GB2433371A (en) 2007-06-20
GB2433371B true GB2433371B (en) 2007-11-14

Family

ID=37605334

Family Applications (2)

Application Number Title Priority Date Filing Date
GB0622777A Expired - Fee Related GB2433371B (en) 2006-11-15 2006-11-15 Data processing apparatus
GB0708790A Expired - Fee Related GB2434706B (en) 2006-11-15 2006-11-15 Data processing apparatus

Family Applications After (1)

Application Number Title Priority Date Filing Date
GB0708790A Expired - Fee Related GB2434706B (en) 2006-11-15 2006-11-15 Data processing apparatus

Country Status (2)

Country Link
GB (2) GB2433371B (en)
WO (1) WO2008059292A2 (en)

Families Citing this family (17)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2438472B (en) * 2006-06-29 2008-07-23 Light Blue Optics Ltd Holographic image display systems
GB0907297D0 (en) 2009-04-29 2009-06-10 Light Blue Optics Ltd Dynamic backlighting
KR102002161B1 (en) 2010-10-15 2019-10-01 시리트 엘엘씨 Surface scattering antennas
US9385435B2 (en) 2013-03-15 2016-07-05 The Invention Science Fund I, Llc Surface scattering antenna improvements
US9647345B2 (en) 2013-10-21 2017-05-09 Elwha Llc Antenna system facilitating reduction of interfering signals
US9923271B2 (en) 2013-10-21 2018-03-20 Elwha Llc Antenna system having at least two apertures facilitating reduction of interfering signals
US9935375B2 (en) 2013-12-10 2018-04-03 Elwha Llc Surface scattering reflector antenna
US10236574B2 (en) 2013-12-17 2019-03-19 Elwha Llc Holographic aperture antenna configured to define selectable, arbitrary complex electromagnetic fields
US9843103B2 (en) 2014-03-26 2017-12-12 Elwha Llc Methods and apparatus for controlling a surface scattering antenna array
US9448305B2 (en) 2014-03-26 2016-09-20 Elwha Llc Surface scattering antenna array
US9853361B2 (en) 2014-05-02 2017-12-26 The Invention Science Fund I Llc Surface scattering antennas with lumped elements
US9882288B2 (en) 2014-05-02 2018-01-30 The Invention Science Fund I Llc Slotted surface scattering antennas
US10446903B2 (en) 2014-05-02 2019-10-15 The Invention Science Fund I, Llc Curved surface scattering antennas
US9711852B2 (en) * 2014-06-20 2017-07-18 The Invention Science Fund I Llc Modulation patterns for surface scattering antennas
CN104407505B (en) * 2014-11-25 2017-06-23 东南大学 A kind of holographic computational methods for suppressing laser speckle effect
US10361481B2 (en) 2016-10-31 2019-07-23 The Invention Science Fund I, Llc Surface scattering antennas with frequency shifting for mutual coupling mitigation
CN118897445B (en) * 2024-10-09 2025-02-18 中国人民解放军国防科技大学 A method, system and medium for evaluating substrate line error of computer generated hologram

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0606987A2 (en) * 1993-01-11 1994-07-20 Canon Kabushiki Kaisha Parallel error diffusion method and apparatus
US6307978B1 (en) * 1998-06-03 2001-10-23 Wellesley College System and method for parallel error diffusion dithering

Family Cites Families (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5271070A (en) * 1992-11-06 1993-12-14 Xerox Corporation Multi-dimensional error diffusion technique
JP3505404B2 (en) * 1998-10-16 2004-03-08 理想科学工業株式会社 Hologram pattern determination device, determination method thereof, and recording medium
GB0329012D0 (en) * 2003-12-15 2004-01-14 Univ Cambridge Tech Hologram viewing device

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0606987A2 (en) * 1993-01-11 1994-07-20 Canon Kabushiki Kaisha Parallel error diffusion method and apparatus
US6307978B1 (en) * 1998-06-03 2001-10-23 Wellesley College System and method for parallel error diffusion dithering

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
Kang, H R, "Parallel Error Diffusion", Proceedings of the SPIE, 2001, vol. 4663, pp 360-369, ISSN 0277-786X *

Also Published As

Publication number Publication date
GB2434706B (en) 2008-12-24
WO2008059292A3 (en) 2009-04-16
GB2434706A (en) 2007-08-01
GB0622777D0 (en) 2006-12-27
WO2008059292A2 (en) 2008-05-22
GB0708790D0 (en) 2007-06-13
GB2433371A (en) 2007-06-20

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Legal Events

Date Code Title Description
732E Amendments to the register in respect of changes of name or changes affecting rights (sect. 32/1977)
PCNP Patent ceased through non-payment of renewal fee

Effective date: 20141115