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GB2568190A - Apparatus and method for removing noise from measured data - Google Patents

Apparatus and method for removing noise from measured data

Info

Publication number
GB2568190A
GB2568190A GB1903332.3A GB201903332A GB2568190A GB 2568190 A GB2568190 A GB 2568190A GB 201903332 A GB201903332 A GB 201903332A GB 2568190 A GB2568190 A GB 2568190A
Authority
GB
United Kingdom
Prior art keywords
measured data
removing noise
data
components
generating
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.)
Withdrawn
Application number
GB1903332.3A
Other versions
GB201903332D0 (en
Inventor
Edgerton Mark
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.)
Renishaw PLC
Original Assignee
Renishaw PLC
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 Renishaw PLC filed Critical Renishaw PLC
Publication of GB201903332D0 publication Critical patent/GB201903332D0/en
Publication of GB2568190A publication Critical patent/GB2568190A/en
Withdrawn legal-status Critical Current

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
    • G01J3/00—Spectrometry; Spectrophotometry; Monochromators; Measuring colours
    • G01J3/28—Investigating the spectrum
    • 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
    • G01J3/44—Raman spectrometry; Scattering spectrometry ; Fluorescence spectrometry
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
    • G01N21/00—Investigating or analysing materials by the use of optical means, i.e. using sub-millimetre waves, infrared, visible or ultraviolet light
    • G01N21/17—Systems in which incident light is modified in accordance with the properties of the material investigated
    • G01N21/25—Colour; Spectral properties, i.e. comparison of effect of material on the light at two or more different wavelengths or wavelength bands
    • G01N21/27—Colour; Spectral properties, i.e. comparison of effect of material on the light at two or more different wavelengths or wavelength bands using photo-electric detection ; circuits for computing concentration
    • G01N21/274—Calibration, base line adjustment, drift correction
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
    • G01N21/00—Investigating or analysing materials by the use of optical means, i.e. using sub-millimetre waves, infrared, visible or ultraviolet light
    • G01N21/62—Systems in which the material investigated is excited whereby it emits light or causes a change in wavelength of the incident light
    • G01N21/63—Systems in which the material investigated is excited whereby it emits light or causes a change in wavelength of the incident light optically excited
    • G01N21/65—Raman scattering

Landscapes

  • Physics & Mathematics (AREA)
  • Spectroscopy & Molecular Physics (AREA)
  • General Physics & Mathematics (AREA)
  • Engineering & Computer Science (AREA)
  • Mathematical Physics (AREA)
  • Theoretical Computer Science (AREA)
  • Health & Medical Sciences (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Chemical & Material Sciences (AREA)
  • Analytical Chemistry (AREA)
  • Biochemistry (AREA)
  • General Health & Medical Sciences (AREA)
  • Immunology (AREA)
  • Pathology (AREA)
  • Investigating Or Analysing Materials By Optical Means (AREA)
  • Measurement Of Mechanical Vibrations Or Ultrasonic Waves (AREA)
  • Radar Systems Or Details Thereof (AREA)
  • Indication And Recording Devices For Special Purposes And Tariff Metering Devices (AREA)

Abstract

This invention concerns a method and apparatus for removing noise from measured data, such as spectral data. The method comprises receiving (101) measured data comprising a plurality of sequential observations of discrete variables, carrying out (102) a method of blind signal separation to separate the measured data into a plurality of components, generating (105) at least one modified component by removing at least a portion of a noise signal present in at least one of the components and generating (107) modified data from ones of the components including the at least one modified component.
GB1903332.3A 2016-10-03 2017-09-29 Apparatus and method for removing noise from measured data Withdrawn GB2568190A (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
GBGB1616787.6A GB201616787D0 (en) 2016-10-03 2016-10-03 Measurement apparatus and methods
PCT/GB2017/052923 WO2018065756A1 (en) 2016-10-03 2017-09-29 Apparatus and method for removing noise from measured data

Publications (2)

Publication Number Publication Date
GB201903332D0 GB201903332D0 (en) 2019-04-24
GB2568190A true GB2568190A (en) 2019-05-08

Family

ID=57571241

Family Applications (2)

Application Number Title Priority Date Filing Date
GBGB1616787.6A Ceased GB201616787D0 (en) 2016-10-03 2016-10-03 Measurement apparatus and methods
GB1903332.3A Withdrawn GB2568190A (en) 2016-10-03 2017-09-29 Apparatus and method for removing noise from measured data

Family Applications Before (1)

Application Number Title Priority Date Filing Date
GBGB1616787.6A Ceased GB201616787D0 (en) 2016-10-03 2016-10-03 Measurement apparatus and methods

Country Status (2)

Country Link
GB (2) GB201616787D0 (en)
WO (1) WO2018065756A1 (en)

Families Citing this family (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US11366398B2 (en) 2018-07-18 2022-06-21 Nova Ltd Time-domain optical metrology and inspection of semiconductor devices
GB201817028D0 (en) 2018-10-19 2018-12-05 Renishaw Plc Spectroscopic apparatus and methods
CN113109318B (en) * 2021-03-26 2022-05-10 中国科学院西安光学精密机械研究所 Raman spectrum quantitative analysis method and system based on spectral peak height direct extraction
WO2023096932A1 (en) * 2021-11-24 2023-06-01 Onto Innovation Inc. Optical metrology with influence map of unknown section
CN117825353B (en) * 2023-12-28 2024-07-30 上海如海光电科技有限公司 A method for removing matrix spectrum from mixture system based on MCR-ALS

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US6072576A (en) * 1996-12-31 2000-06-06 Exxon Chemical Patents Inc. On-line control of a chemical process plant
US8570507B1 (en) * 2012-09-06 2013-10-29 Bruker Optics, Inc. Method and apparatus for acquiring Raman spectra without background interferences

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US6072576A (en) * 1996-12-31 2000-06-06 Exxon Chemical Patents Inc. On-line control of a chemical process plant
US8570507B1 (en) * 2012-09-06 2013-10-29 Bruker Optics, Inc. Method and apparatus for acquiring Raman spectra without background interferences

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
GUANGYI CHEN ET AL : Denoising of Hyperspectral Imagery Using Pribcipal Component Analysis and Wavelet Shrinkage. IEEE TRANSACTIONS ON GEOSCIENCE AND REMOTE SENSING, IEEE SERVICE CENTER, PISCATAWAY, NJ, US, vol. 49 no.3 1 March 2011 *

Also Published As

Publication number Publication date
WO2018065756A1 (en) 2018-04-12
GB201616787D0 (en) 2016-11-16
GB201903332D0 (en) 2019-04-24

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Legal Events

Date Code Title Description
WAP Application withdrawn, taken to be withdrawn or refused ** after publication under section 16(1)