PostGIS Raster : Extending PostgreSQL for The Support of ... - CoDE
PostGIS Raster : Extending PostgreSQL for The Support of ... - CoDE
PostGIS Raster : Extending PostgreSQL for The Support of ... - CoDE
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Abstract<br />
Nowadays, in many application domains, complex analysis tasks <strong>of</strong>ten require to take geographical<br />
in<strong>for</strong>mation into account. However, there are very few attempts to support continuous fields, a phenomena<br />
that are perceived as having a value at each point in space and/or time. Examples <strong>of</strong> such<br />
phenomena include temperature, altitude or land use. This thesis is intended to introduce <strong>PostGIS</strong><br />
<strong>Raster</strong>, a new raster data type supporting continuous fields in <strong>PostgreSQL</strong> database. Later, based<br />
on this primitive data type, a new composite type is build, along with a set <strong>of</strong> functions to take into<br />
account the temporal aspect. Finally, an application that allows user to exploit the temporal feature<br />
<strong>of</strong> such raster data is also provided.<br />
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