Data Acquisition and Analysis
The scene data were acquired with a 12-bit CCD 6 Megapixel camera. The process begins by acquiring eighteen different images, including six exposure durations and three color filter conditions. The data from these images are combined to estimate the scene radiance. The multiple filters expand the spectral dimension of the scene data; the multiple exposures expand the dynamic range of the scene data.

Data Representation
We represent a scene as a multidimensional array describing the spectral radiance (photons/sec/nm/sr/m2) at each pixel in the sampled scene.  The spectral radiance image data are assumed to arise from a single image plane at a specified distance from the optics.The spectral power of the scene illuminant is included with each data file.

Image Content..
32 multispectral scenes are represented with three different resolutions (253x380, 338x506 and 506x759) and grouped into the following categories: