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When Interpolation-Induced Reflection Artifact Meets Time-Frequency Analysis.

Publication ,  Journal Article
Lin, Y-T; Flandrin, P; Wu, H-T
Published in: IEEE transactions on bio-medical engineering
October 2016

While extracting the temporal dynamical features based on the time-frequency analyses, like the reassignment and synchrosqueezing transform, attracts more and more interest in biomedical data analysis, we should be careful about artifacts generated by interpolation schemes, in particular when the sampling rate is not significantly higher than the frequency of the oscillatory component we are interested in.We formulate the problem called the reflection effect and provide a theoretical justification of the statement. We also show examples in the anesthetic depth analysis with clear but undesirable artifacts.The artifact associated with the reflection effect exists not only theoretically but practically as well. Its influence is pronounced when we apply the time-frequency analyses to extract the time-varying dynamics hidden inside the signal.We have to carefully deal with the artifact associated with the reflection effect by choosing a proper interpolation scheme.

Duke Scholars

Published In

IEEE transactions on bio-medical engineering

DOI

EISSN

1558-2531

ISSN

0018-9294

Publication Date

October 2016

Volume

63

Issue

10

Start / End Page

2133 / 2141

Related Subject Headings

  • Signal Processing, Computer-Assisted
  • Respiration
  • Humans
  • Heart Rate
  • Electrocardiography
  • Biomedical Engineering
  • Artifacts
  • Anesthesia
  • 4603 Computer vision and multimedia computation
  • 4009 Electronics, sensors and digital hardware
 

Citation

APA
Chicago
ICMJE
MLA
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Lin, Y.-T., Flandrin, P., & Wu, H.-T. (2016). When Interpolation-Induced Reflection Artifact Meets Time-Frequency Analysis. IEEE Transactions on Bio-Medical Engineering, 63(10), 2133–2141. https://doi.org/10.1109/tbme.2015.2510580
Lin, Yu-Ting, Patrick Flandrin, and Hau-Tieng Wu. “When Interpolation-Induced Reflection Artifact Meets Time-Frequency Analysis.IEEE Transactions on Bio-Medical Engineering 63, no. 10 (October 2016): 2133–41. https://doi.org/10.1109/tbme.2015.2510580.
Lin Y-T, Flandrin P, Wu H-T. When Interpolation-Induced Reflection Artifact Meets Time-Frequency Analysis. IEEE transactions on bio-medical engineering. 2016 Oct;63(10):2133–41.
Lin, Yu-Ting, et al. “When Interpolation-Induced Reflection Artifact Meets Time-Frequency Analysis.IEEE Transactions on Bio-Medical Engineering, vol. 63, no. 10, Oct. 2016, pp. 2133–41. Epmc, doi:10.1109/tbme.2015.2510580.
Lin Y-T, Flandrin P, Wu H-T. When Interpolation-Induced Reflection Artifact Meets Time-Frequency Analysis. IEEE transactions on bio-medical engineering. 2016 Oct;63(10):2133–2141.

Published In

IEEE transactions on bio-medical engineering

DOI

EISSN

1558-2531

ISSN

0018-9294

Publication Date

October 2016

Volume

63

Issue

10

Start / End Page

2133 / 2141

Related Subject Headings

  • Signal Processing, Computer-Assisted
  • Respiration
  • Humans
  • Heart Rate
  • Electrocardiography
  • Biomedical Engineering
  • Artifacts
  • Anesthesia
  • 4603 Computer vision and multimedia computation
  • 4009 Electronics, sensors and digital hardware