Description
See the difference in high resolution
Pansharpening, or image fusion, is a well-known image enhancement technique in satellite remote sensing or earth observation. At Cubert we developed our own image fusion technique to increase the spatial resolution of our hyperspectral images. This is extremely beneficial for UAV flights and mobile mapping, as it allows analyses on leaf level of vegetation. The ULTRIS 20 Plus is our latest UAV hyperspectral camera with pansharpening extension.
The ULTRIS 20 Plus is especially designed for UAV applications, the table above gives an overview on the resolution per pixel (ground sampling distance) for different flight heights. Of course you can use the hyperspectral video imager in the field or in the lab – the non-scanning snapshot allows you to take the complete data cube within a few milliseconds.
Leaf Level Mapping with the ULTRIS 20 Plus
Even at a flight height of 100m the GSD per pixel is remarkable 3.7cm. This allows crop analyses on leaf level, helping detecting diseases and other issues that require action at an early stage. Below you see an image comparison of classic ULTRIS with 410 by 410 pixel on the left, and the same image pansharpened with a resolution of 1880 by 1880 pixel. This means a pan factor of 4.6, which from a scientific view is an interpolation that still provides enough accurate spectral information.
ULTRIS True Color, native resolution, 410×410 pixel, 100 spectral bands
ULTRIS Plus True Color, pansharpened product (factor 4.6, bicubic), 1880×1880 pixel, 100 spectral bands
