The designation HD 40307 is from the Henry Draper Catalogue, which is based on spectral classifications made between 1911 and 1915 by Annie Jump Cannon and her co-workers, and was published between 1918 and 1924.
Li and Narayanan [14] identified ground-cover information based on spectral characteristics using supervised classification and extracted textural features by characterizing spatial information using Gabor wavelet coefficients.
A simple and robust method for image pixel classification based on spectral reflectance properties is presented.
Water regions are extracted from the MODIS images using image classification (based on spectral information) and image segmentation (based on spatial information).
Classification of soils based on spectral characteristics showed significant correlations with soil plasticity classes.
A similar accuracy and spatial consistency of LULC classification could not be achieved based on spectral information alone, indicating the high additional value of temporal information for identifying LULC classes in the complex land use systems of savanna landscapes.
Both methods are based on spectral matrix structure.
This clustering is exclusively based on spectral similarity.
When disagreement over how exactly to classify stars arose, Cannon came up with the logical system based on spectral absorption lines.
dNSAFs were calculated based on distributed spectral counts, in which shared spectral counts were distributed based on spectral counts unique to each isoform.
