BR8905856A - Metodo e aparelho para a producao de uma imagem optica secundaria - Google Patents

Metodo e aparelho para a producao de uma imagem optica secundaria

Info

Publication number
BR8905856A
BR8905856A BR898905856A BR8905856A BR8905856A BR 8905856 A BR8905856 A BR 8905856A BR 898905856 A BR898905856 A BR 898905856A BR 8905856 A BR8905856 A BR 8905856A BR 8905856 A BR8905856 A BR 8905856A
Authority
BR
Brazil
Prior art keywords
production
optical image
secondary optical
image
optical
Prior art date
Application number
BR898905856A
Other languages
English (en)
Inventor
Charles N Harward
Original Assignee
Philip Morris
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 Philip Morris filed Critical Philip Morris
Publication of BR8905856A publication Critical patent/BR8905856A/pt

Links

Classifications

    • G—PHYSICS
    • G06—COMPUTING OR CALCULATING; COUNTING
    • G06V—IMAGE OR VIDEO RECOGNITION OR UNDERSTANDING
    • G06V10/00—Arrangements for image or video recognition or understanding
    • G06V10/88—Image or video recognition using optical means, e.g. reference filters, holographic masks, frequency domain filters or spatial domain filters

Landscapes

  • Engineering & Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Multimedia (AREA)
  • Theoretical Computer Science (AREA)
  • Liquid Crystal (AREA)
  • Image Input (AREA)
  • Liquid Crystal Display Device Control (AREA)
  • Investigating Materials By The Use Of Optical Means Adapted For Particular Applications (AREA)
BR898905856A 1988-11-21 1989-11-21 Metodo e aparelho para a producao de uma imagem optica secundaria BR8905856A (pt)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US07/274,029 US4928181A (en) 1988-11-21 1988-11-21 Methods and apparatus for optically enhancing selected features in an input image

Publications (1)

Publication Number Publication Date
BR8905856A true BR8905856A (pt) 1990-06-12

Family

ID=23046471

Family Applications (1)

Application Number Title Priority Date Filing Date
BR898905856A BR8905856A (pt) 1988-11-21 1989-11-21 Metodo e aparelho para a producao de uma imagem optica secundaria

Country Status (6)

Country Link
US (1) US4928181A (pt)
EP (1) EP0370752A3 (pt)
JP (1) JPH02183215A (pt)
AU (1) AU612529B2 (pt)
BR (1) BR8905856A (pt)
CA (1) CA2003528A1 (pt)

Families Citing this family (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5074647A (en) * 1989-12-07 1991-12-24 Optical Shields, Inc. Liquid crystal lens assembly for eye protection
US20020113464A1 (en) * 1998-06-18 2002-08-22 Alusuisse Technology & Management Ag Roof unit and basic structure of a road-bound vehicle
JP2000253418A (ja) * 1999-03-03 2000-09-14 Alps Electric Co Ltd 映像信号処理回路、ビューファインダ装置、テレビジョンカメラ及び映像モニタ装置
US6881939B1 (en) 2001-05-05 2005-04-19 Jackson Products, Inc. Microprocessor based automatically dimmable eye protection device
US6841772B1 (en) 2001-05-05 2005-01-11 Jackson Products, Inc. Eye-protection device having dual high voltage switching
ATE484816T1 (de) * 2002-04-02 2010-10-15 Koninkl Philips Electronics Nv Verbesserung der fensterhelligkeit für eine lcd- anzeige
US7026593B2 (en) * 2003-08-11 2006-04-11 Jackson Products, Inc. Eye-protection device having dual high voltage switching

Family Cites Families (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS538362Y2 (pt) * 1972-10-02 1978-03-04
US3930719A (en) * 1973-04-09 1976-01-06 Xerox Corporation Edge brightness display and method using a material exhibiting dielectric anisotropy
US4459615A (en) * 1982-07-01 1984-07-10 Eastman Kodak Company Two-dimensional, electro-optic element adapted for static address and cooperative device, methods and apparatus for electronic imaging
JPS6050511A (ja) * 1983-08-31 1985-03-20 Hitachi Ltd 液晶表示素子
US4743097A (en) * 1987-04-06 1988-05-10 The United States Of America As Represented By The Secretary Of The Army Incoherent image intensity normalization, contour enhancement, and pattern recognition system

Also Published As

Publication number Publication date
AU612529B2 (en) 1991-07-11
EP0370752A3 (en) 1991-07-17
JPH02183215A (ja) 1990-07-17
CA2003528A1 (en) 1990-05-21
AU4534489A (en) 1990-05-24
US4928181A (en) 1990-05-22
EP0370752A2 (en) 1990-05-30

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