Multispectral imaging is an optical acquisition method that records scene radiance or reflectance in multiple discrete spectral bands, typically spanning the visible, near-infrared, and sometimes shortwave infrared regions. Using bandpass filters, tunable filters, or sensor arrays with spectrally selective elements, it generates co-registered images where each band captures wavelength-dependent material properties. Quantitative analysis of these bands enables spectral feature extraction, classification, and segmentation based on differences in absorption, scattering, or fluorescence. In research, multispectral imaging is applied to non-destructive assessment, tissue characterization, remote sensing, and cultural heritage analysis, often serving as a lower-complexity, higher-throughput alternative to full hyperspectral imaging.
A multinational research team, including engineers from the University of Cambridge and Zhejiang University, has developed a breakthrough in miniaturized spectrometer technology that could dramatically expand the accessibility ...
Optics & Photonics
Jul 11, 2025
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164
Astronomers from Bulgaria and Egypt have performed multi-wavelength observations of a well-known blazar designated S5 0716+714. Results of the observational campaign, published June 23 in the Monthly Notices of the Royal ...
Drones can now detect subtle soybean canopy damage from dicamba at one ten-thousandth of the herbicide's label rate—simulating vapor drift—eight days after application. This advancement in remote sensing from the University ...
Plants & Animals
Jul 7, 2025
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32
Scientists have developed a new method to identify and map plastic waste in urban areas using satellite imagery, offering new hope for tracking pollution and improving waste management in cities worldwide.
Environment
Jul 1, 2025
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21
A team of researchers led by Dr. Ittai Herrmann at The Hebrew University of Jerusalem, in collaboration with Virginia State University, the University of Tokyo and the Volcani Institute, has applied an advanced drone-based ...
Biotechnology
Jun 30, 2025
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99
What imaging systems can NASA's Artemis astronauts use on the moon to conduct groundbreaking science and efficient documentation on the lunar surface? This is what a recent study presented at the 56th Lunar and Planetary ...
Space Exploration
Jun 25, 2025
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16
Forest fire prevention and control agencies in São Carlos, in the interior of the state of São Paulo, Brazil, will soon have help from the sky to detect fires more quickly and combat them before they grow out of control and ...
Environment
Jun 13, 2025
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36
A lot can change in a year for Earth's forests and vegetation, as springtime and rainy seasons can bring new growth, while cooling temperatures and dry weather can bring a dieback of those green colors. And now, a novel type ...
Environment
Jun 5, 2025
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25
The U.S. National Science Foundation Daniel K. Inouye Solar Telescope, the world's most powerful solar telescope, operated by the NSF National Solar Observatory (NSO) near the summit of Maui's Haleakalā, reached a major milestone: ...
Astronomy
Apr 24, 2025
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58
Researchers at the University of Tsukuba estimated Japan's spring leaf flush dates in recent years using data from the Second-generation Global Imager (SGLI) sensor onboard the Japan Aerospace Exploration Agency's (JAXA) ...
Environment
Apr 23, 2025
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