WO1998012518A3 - Spatial photometric neural network - Google Patents

Spatial photometric neural network Download PDF

Info

Publication number
WO1998012518A3
WO1998012518A3 PCT/IB1997/001223 IB9701223W WO9812518A3 WO 1998012518 A3 WO1998012518 A3 WO 1998012518A3 IB 9701223 W IB9701223 W IB 9701223W WO 9812518 A3 WO9812518 A3 WO 9812518A3
Authority
WO
WIPO (PCT)
Prior art keywords
neural network
photosite
outputs
spatial
photometric
Prior art date
Application number
PCT/IB1997/001223
Other languages
French (fr)
Other versions
WO1998012518A2 (en
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 filed Critical
Priority to AU43162/97A priority Critical patent/AU4316297A/en
Publication of WO1998012518A2 publication Critical patent/WO1998012518A2/en
Publication of WO1998012518A3 publication Critical patent/WO1998012518A3/en

Links

Classifications

    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01J—MEASUREMENT OF INTENSITY, VELOCITY, SPECTRAL CONTENT, POLARISATION, PHASE OR PULSE CHARACTERISTICS OF INFRARED, VISIBLE OR ULTRAVIOLET LIGHT; COLORIMETRY; RADIATION PYROMETRY
    • G01J1/00—Photometry, e.g. photographic exposure meter
    • G01J1/10—Photometry, e.g. photographic exposure meter by comparison with reference light or electric value provisionally void
    • G01J1/16—Photometry, e.g. photographic exposure meter by comparison with reference light or electric value provisionally void using electric radiation detectors
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01J—MEASUREMENT OF INTENSITY, VELOCITY, SPECTRAL CONTENT, POLARISATION, PHASE OR PULSE CHARACTERISTICS OF INFRARED, VISIBLE OR ULTRAVIOLET LIGHT; COLORIMETRY; RADIATION PYROMETRY
    • G01J3/00—Spectrometry; Spectrophotometry; Monochromators; Measuring colours
    • G01J3/28—Investigating the spectrum

Abstract

A neural network algorithm permits the characterization of spatially distributed light reflected from the surface of a compact disc (1) and provides a means for processing such location-dependent outputs of photosite arrays. The outputs of a photosite array (11), such as a ring-wedge photodetector, are sent to the inputs of the neural network (13), where the designed transfer function yield output values that are characteristic of the spatial distribution of light upon the photosite array (11).
PCT/IB1997/001223 1996-09-05 1997-09-05 Spatial photometric neural network WO1998012518A2 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
AU43162/97A AU4316297A (en) 1996-09-05 1997-09-05 Spatial photometric neural network

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
US70888796A 1996-09-05 1996-09-05
US08/708,887 1996-09-05

Publications (2)

Publication Number Publication Date
WO1998012518A2 WO1998012518A2 (en) 1998-03-26
WO1998012518A3 true WO1998012518A3 (en) 1998-07-09

Family

ID=24847568

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/IB1997/001223 WO1998012518A2 (en) 1996-09-05 1997-09-05 Spatial photometric neural network

Country Status (2)

Country Link
AU (1) AU4316297A (en)
WO (1) WO1998012518A2 (en)

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5101270A (en) * 1990-12-13 1992-03-31 The Johns Hopkins University Method and apparatus for radon transformation and angular correlation in optical processors
US5138468A (en) * 1990-02-02 1992-08-11 Dz Company Keyless holographic lock
US5181081A (en) * 1990-09-06 1993-01-19 Wea Manufacturing, Inc. Print scanner

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5138468A (en) * 1990-02-02 1992-08-11 Dz Company Keyless holographic lock
US5181081A (en) * 1990-09-06 1993-01-19 Wea Manufacturing, Inc. Print scanner
US5101270A (en) * 1990-12-13 1992-03-31 The Johns Hopkins University Method and apparatus for radon transformation and angular correlation in optical processors

Also Published As

Publication number Publication date
AU4316297A (en) 1998-04-14
WO1998012518A2 (en) 1998-03-26

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