Jove
Visualize
Contact Us
JoVE
x logofacebook logolinkedin logoyoutube logo
ABOUT JoVE
OverviewLeadershipBlogJoVE Help Center
AUTHORS
Publishing ProcessEditorial BoardScope & PoliciesPeer ReviewFAQSubmit
LIBRARIANS
TestimonialsSubscriptionsAccessResourcesLibrary Advisory BoardFAQ
RESEARCH
JoVE JournalMethods CollectionsJoVE Encyclopedia of ExperimentsArchive
EDUCATION
JoVE CoreJoVE BusinessJoVE Science EducationJoVE Lab ManualFaculty Resource CenterFaculty Site
Terms & Conditions of Use
Privacy Policy
Policies

Related Concept Videos

Upsampling01:22

Upsampling

Managing signal sampling rates is essential in digital signal processing to maintain signal integrity. A decimated signal, characterized by a reduced frequency range due to its lower sampling rate, can be upsampled by inserting zeros between each sample. This upsampling process expands the original spectrum and introduces repeated spectral replicas at intervals dictated by the new Nyquist frequency. To refine this zero-inserted sequence, it is passed through a lowpass filter with a cutoff...
Downsampling01:20

Downsampling

When considering a sampled sequence with zero values between sampling instants, one can replace it by taking every N-th value of the sequence. At these integer multiples of N, the original and sampled sequences coincide. This process, known as decimation, involves extracting every N-th sample from a sequence, thereby creating a more efficient sequence.
The Fourier transform of the decimated sequence reveals a combination of scaled and shifted versions of the original spectrum. This...

You might also read

Related Articles

Articles linked to this work by shared authors, journal, and citation graph.

Sort by
Same author

Ceramide-mediated mitochondrial dysfunction in nonobese nonalcoholic fatty liver disease: A regulatory role for serine palmitoyltransferase subunit 2.

Journal of cell communication and signaling·2026
Same author

AXL inhibition prevents RPA2/CHK1-mediated homologous recombination to increase PARP inhibitor sensitivity in hepatocellular carcinoma.

Heliyon·2024
Same author

Sex difference in alcohol consumption associated with colorectal cancer risk in Quzhou, China: A nested case-control study.

Preventive medicine reports·2024
Same author

A Novel Multi-compartment Rotating Bioreactor for Improving ADSC-Spheroid Formation and its Application in Neurogenic Erectile Dysfunction.

Current stem cell research & therapy·2024
Same author

Parallelism error analysis and its effect on modulation depth based on a rotating parallel mirror Fourier spectrometer.

Optics express·2023
Same author

Generation and characterization of a human induced pluripotent stem cell (iPSC) line from a patient with congenital heart disease (CHD).

Stem cell research·2022
Same journal

The Laser Rangefinder System in Quadrature Modem and Ambiguity Resolution.

Guang pu xue yu guang pu fen xi = Guang pu·2018
Same journal

Improving the Accuracy of Camera-Based Heart Rate Measurement.

Guang pu xue yu guang pu fen xi = Guang pu·2018
Same journal

Determination of Pb, Cr, Cd, and As in Aluminum-Plastic Packaging Materials via Inductively Coupled Plasma-Mass Spectrometry with Microwave Digestion.

Guang pu xue yu guang pu fen xi = Guang pu·2018
Same journal

Study on Molecular Recognition of Cucurbit[6]uril with Oxytetracycline Molecules by Spectroscopic Methods.

Guang pu xue yu guang pu fen xi = Guang pu·2018
Same journal

Preparation and Properties of Novel Polymer Blue Fluorescent Materials.

Guang pu xue yu guang pu fen xi = Guang pu·2018
Same journal

Effect of the Nitrogen Incorporation on the Microstructure and Photoelectric Properties of N Type Nanocrystalline Silicon Thin Films.

Guang pu xue yu guang pu fen xi = Guang pu·2018
See all related articles

Related Experiment Video

Updated: May 28, 2026

Applying Hyperspectral Reflectance Imaging to Investigate the Palettes and the Techniques of Painters
07:05

Applying Hyperspectral Reflectance Imaging to Investigate the Palettes and the Techniques of Painters

Published on: June 18, 2021

[Hyperspectral image compression technology research based on EZW].

Jun-Xia Wei1, Bin Xiangli, Xiao-Feng Duan

  • 1Key Laboratory of Spectral Imaging Technology of Chinese Academy of Sciences, Laboratory of Spectral Imaging Technology, Xi'an Institute of Optics and Precision Mechanics, Xi'an 710119, China. wjx_ywj@163.com

Guang Pu Xue Yu Guang Pu Fen Xi = Guang Pu
|October 20, 2011
PubMed
Summary
This summary is machine-generated.

Hyperspectral image compression using wavelet transforms effectively reduces data size for aviation and spaceflight applications. Spatial dimension compression shows good results, with potential for better outcomes by compressing spectral data first.

More Related Videos

Cereal Crop Ear Counting in Field Conditions Using Zenithal RGB Images
11:49

Cereal Crop Ear Counting in Field Conditions Using Zenithal RGB Images

Published on: February 2, 2019

Related Experiment Videos

Last Updated: May 28, 2026

Applying Hyperspectral Reflectance Imaging to Investigate the Palettes and the Techniques of Painters
07:05

Applying Hyperspectral Reflectance Imaging to Investigate the Palettes and the Techniques of Painters

Published on: June 18, 2021

Cereal Crop Ear Counting in Field Conditions Using Zenithal RGB Images
11:49

Cereal Crop Ear Counting in Field Conditions Using Zenithal RGB Images

Published on: February 2, 2019

Area of Science:

  • Remote Sensing
  • Image Processing
  • Wavelet Theory

Context:

  • Hyperspectral imaging offers high resolution for aviation and spaceflight but generates massive datasets.
  • Efficient data storage and transmission are critical challenges for hyperspectral imaging.
  • Wavelet-based compression techniques are increasingly adopted for image data reduction.

Purpose:

  • To investigate the application of wavelet compression for hyperspectral image data.
  • To evaluate the effectiveness of spatial dimension compression using the EZW algorithm.
  • To explore potential improvements by incorporating spectral dimension compression.

Summary:

  • This study applies Enhanced Wavelet Transform (EZW) for spatial dimension compression of hyperspectral images.
  • Reconstruction quality was assessed using Peak Signal-to-Noise Ratio (PSNR) and spectral curve analysis.
  • Results demonstrate successful compression with good fidelity, preserving image and spectral information.

Impact:

  • Provides a viable method for managing large hyperspectral datasets in remote sensing.
  • Suggests a hybrid compression strategy (spectral then spatial) for enhanced performance.
  • Facilitates broader application of hyperspectral imaging in fields like aviation and spaceflight.