IEEE Geoscience and Remote Sensing Magazine - June 2019 - 161

PAVIA
Pavia is a data set captured using the reflective optics system
imaging spectrometer sensor with a ground sampling distance
(GSD) of 1.3 m over the city of Pavia, Italy (Figure 1). It is divided in two parts: Pavia University (103 bands, 610 pixel ×
340 pixel) and Pavia Center (102 bands, 1,096 pixel × 715 pixel). Nine classes of interest are annotated covering 50% of the
whole surface. They comprise various urban materials (such as
bricks, asphalt, and metals), water, and vegetation.
This has been one of the main reference data sets for a
long time because it is one of the largest sets of labeled HSI
data and because it allows for evaluation of the use of HSI
for potential applications. However, some preprocessing
might be necessary to remove some pixels with no spectral
information, and a few errors occur in the ground truth.
DATA FUSION CONTEST 2018
The DFC2018 hyperspectral data (Figure 2) were acquired
over central Houston, Texas, using an airborne sensor.

They cover a 380-1,050-nm spectral range over 48 contiguous bands at 1-m GSD. Twenty classes of interest are
defined and include not only urban categories (buildings
and roads of various types, railways, cars, trains, and so
on) but also various vegetation types (stressed, healthy,
deciduous, or evergreen trees) and specific materials. This
data set is part of the 2018 Data Fusion Contest release,
along with very-high-resolution imagery and multispectral lidar [12], [13].
INDIAN PINES
Indian Pines is a data set captured using the AVIRIS sensor. The scene covers agricultural areas in northwestern
Indiana, with a GSD of 20 m/pixel, resulting in a 145 pixel
× 145 pixel image with 224 spectral bands. Most parts of
the image represent fields with various crops while the
rest denotes forests and dense vegetation. Sixteen classes
(Figures 3 and 4) are labeled (e.g., corn, grass, soybean,
woods, and so on), some of them being very rare (fewer

(a)

(b)
FIGURE 2. Data Fusion Contest 2018 [12] over Houston: (a) composite image with bands 48, 32, and 16 and (b) ground-truth.

FIGURE 1. Pavia University (natural composite image).
JUNE 2019

IEEE GEOSCIENCE AND REMOTE SENSING MAGAZINE

FIGURE 3. Indian Pines (natural composite image).

161



IEEE Geoscience and Remote Sensing Magazine - June 2019

Table of Contents for the Digital Edition of IEEE Geoscience and Remote Sensing Magazine - June 2019

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