Both hyperspectral and multispectral cameras are used to obtain spectral information in different wavelength ranges,but they have some differences in spectral range and application fields.
Spectral range
Hyperspectral cameras can capture a wide range of continuous spectra,typically in the visible and infrared regions(400-2500nm),while multispectral cameras can only capture specific discrete spectral information.
Different spectral resolutions
Multispectral cameras have high image resolution,typically between 2-8 million pixels,with a low spectral resolution of 30-480 bands.They can provide a certain range of spectral information,but cannot distinguish smaller spectral information in detail.Hyperspectral cameras have extremely high spectral resolution,usually between 1-10 bands,and can distinguish smaller spectral information in detail.However,their image resolution is relatively low,usually below 4 million.
Data volume and data processing
Hyperspectral cameras can acquire more detailed spectral information,generate a larger amount of data,and each pixel contains a large amount of spectral information,requiring higher computational and processing capabilities for data analysis.In contrast,multispectral cameras can only acquire a certain range of spectral information,with a smaller amount of data and easier processing and analysis.
application area
Hyperspectral cameras are suitable for detecting the reflection spectra of ground objects in a small range and with high accuracy.They are widely used in geological,environmental,agricultural,medical and other fields,and can detect and distinguish different substances and materials through spectral features.
Multi spectral cameras are suitable for rapid and large-scale detection of ground reflection spectra,and are also applied in fields such as agriculture,remote sensing,and environmental monitoring,for analyzing soil,vegetation,water quality,and so on.
To sum up ,hyperspectral cameras are suitable for fields that require high-resolution,continuous spectral information,while multispectral cameras are suitable for fields that require rapid acquisition of specific discrete spectral information.