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

715
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...
715
Downsampling01:20

Downsampling

816
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...
816
Reconstruction of Signal using Interpolation01:10

Reconstruction of Signal using Interpolation

878
Signal processing techniques are essential for accurately converting continuous signals to digital formats and vice versa. When a continuous signal is sampled with a period T, the resulting sampled signal exhibits replicas of the original spectrum in the frequency domain, spaced at intervals equal to the sampling frequency. To handle this sampled signal, a zero-order hold method can be applied, which creates a piecewise constant signal by retaining each sample's value until the next...
878
Color Vision01:24

Color Vision

2.0K
Color perception begins in the retina, the light-sensitive layer at the back of the eye. Two main theories explain how colors are seen: the trichromatic theory and the opponent-process theory. The trichromatic theory, proposed by Thomas Young in 1802 and extended by Hermann von Helmholtz in 1852, suggests that color vision is based on three types of cone receptors in the retina. These cones are sensitive to different but overlapping ranges of wavelengths corresponding to red, blue, and green.
2.0K

You might also read

Related Articles

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

Sort by
Same author

Multi-scale modeling of electric vehicle fatal crash risk: uncovering spatial heterogeneity and infrastructure-land use coupling mechanisms.

Accident; analysis and prevention·2026
Same author

Salt priming coordinates transcriptional and epigenetic states for enhanced salt tolerance in mung bean (Vigna radiata).

Communications biology·2026
Same author

Immunometabolic and immune regulatory functions of capsaicin in cancer: mechanistic insights and emerging perspectives.

Frontiers in immunology·2026
Same author

Traversing the ancient Overland Silk Road: Insights from domestic camel paleogenomics in Xi'an, China.

Zoological research·2026
Same author

Secular Trends and Predictors of Frequent Cannabis Use From 2002-2019 in the United States.

Mayo Clinic proceedings·2026
Same author

High-zinc diets accelerate molting and recovery by remodeling the cecal microbiome in laying hens.

Frontiers in microbiology·2026
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: Apr 12, 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

2.9K

[Multispectral image compression algorithms for color reproduction].

Wei Liang, Ping Zeng, Xue-mei Luo

    Guang Pu Xue Yu Guang Pu Fen Xi = Guang Pu
    |May 22, 2015
    PubMed
    Summary
    This summary is machine-generated.

    A new WF_APWS_RA algorithm improves multispectral image compression for better color accuracy. This method enhances storage and transmission efficiency while preserving high color fidelity.

    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

    10.0K
    Lensless Fluorescent Microscopy on a Chip
    11:23

    Lensless Fluorescent Microscopy on a Chip

    Published on: August 17, 2011

    18.4K

    Related Experiment Videos

    Last Updated: Apr 12, 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

    2.9K
    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

    10.0K
    Lensless Fluorescent Microscopy on a Chip
    11:23

    Lensless Fluorescent Microscopy on a Chip

    Published on: August 17, 2011

    18.4K

    Area of Science:

    • Image processing
    • Color science
    • Data compression

    Context:

    • Multispectral images require efficient compression for applications demanding high color accuracy, such as color reproduction.
    • Existing compression methods often struggle to maintain color fidelity at high compression ratios.

    Purpose:

    • To propose and design the WF_APWS_RA algorithm for improved multispectral image compression efficiency.
    • To enhance storage and transmission capabilities for multispectral data while ensuring high color accuracy.

    Summary:

    • The WF_APWS_RA algorithm combines affinity propagation clustering, 2D wavelet transform, and an error compensation mechanism with rate pre-allocation.
    • It optimizes the adaptive predictive wavelet coding (APWS) rate allocation strategy using a color perception distortion criterion and visual characteristic matrix.
    • The algorithm leverages spectral correlation and spatial redundancy reduction for efficient embedded wavelet coding.

    Impact:

    • WF serial algorithms demonstrate superior color retention compared to classical methods at similar bit rates.
    • The WF_APWS_RA algorithm significantly reduces spectral error and offers superior color accuracy in multispectral image compression.
    • Enables more efficient storage and transmission of high-fidelity multispectral imagery for critical applications.