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.
For over a century, doctors have used electrocardiograms (EKGs) to render the invisible electrical activity of the human heart visible, using the pulse to diagnose disease before it becomes fatal. Now, scientists have invented ...
Environment
Jun 8, 2026
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Food waste is a nagging problem that weighs heavily on global food production, distribution and sales industries—but an emerging generation of AI sensors is providing a raft of fresh solutions. The embrace of AI in food industries ...
Biotechnology
Jun 3, 2026
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An analysis of Quebec's forest inventory data developed by Concordia researchers reveals that the conifer population is on the rebound after decades of decline.
Plants & Animals
Jun 2, 2026
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It's a mild early spring morning at the historic Cottonwood Field Station in western South Dakota, and a herd of 150 Angus steers are scheduled to move to a new pasture rotation. Moving cattle can be tricky and often requires ...
Biotechnology
Jun 2, 2026
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As wildflowers go, the mountain jewelflower is demure, clever and quietly unbreakable. It has spread across many of California's iconic landscapes, from Sonoma wine country to the oak-dotted foothills, even over the Sierra ...
Plants & Animals
May 30, 2026
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Captured by the multispectral imager instrument on NASA's Psyche mission, this is an enhanced-color view of the large double-ring crater Huygens (upper right; about 290 miles, or 470 kilometers, in diameter) and the surrounding ...
Space Exploration
May 20, 2026
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This view of a crescent Mars was captured on May 15, 2026, at about 5:03 a.m. PDT by NASA's Psyche mission as it approached the planet for a gravity assist. Captured by the spacecraft's multispectral imager instrument, this ...
Space Exploration
May 20, 2026
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23
NASA's Psyche spacecraft will get a boost from Mars on Friday, May 15, passing just 2,800 miles (4,500 kilometers) from the planet's surface at some 12,333 mph (19,848 kph). The spacecraft will harness the planet's gravitational ...
Planetary Sciences
May 9, 2026
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215
Firefighters are battling two destructive blazes in the southern part of the state as drought grips the U.S. Southeast. An extreme drought that has gripped the Southeast for months helped fuel two large, destructive, human-caused ...
Environment
Apr 29, 2026
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Eggs and poultry provide important sources of protein globally, driving a major industry with large economic impacts. Challenges to hatchery operations include embryo mortality, fertility, sex determination, and eggshell ...
Biotechnology
Apr 28, 2026
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