TY - GEN AU - Álvarez Taboada, María Flor AU - Catanzarite Torres, Tainy AU - Rodríguez Pérez, José Ramón AU - Nafría, D. A4 - Ingeniería Cartografica, Geodesica y Fotogrametria DA - 2010/02/02 PY - 2013 UR - http://hdl.handle.net/10612/2741 AB - Digital photogrammetric cameras obtain multispectral images with a high geometric accuracy and radiometric information which can be used for multiple purpose. The optimal use of this information requires a calibration and validation of the... LA - eng KW - Cartografía KW - Radiometría KW - Calibración KW - Plan Nacional de Ortofotografía Aerea (PNOA) TI - Radiometric calibration and evaluation of ultracam X and XP using portable reflectance targets and spectometer data. Aplication to estract thematic data from imagery gathered by the national plan of aerial orthophotography (PNOA) ER -