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		<isbn>978-85-17-00088-1</isbn>
		<label>59994</label>
		<citationkey>SantosSouzGlerVell:2017:TaJaCa</citationkey>
		<title>Classificação textural multisensores: tamanho da janela, característica dos alvos e bandas espectrais</title>
		<format>Internet</format>
		<year>2017</year>
		<secondarytype>PRE CN</secondarytype>
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		<size>773 KiB</size>
		<author>Santos, João Flávio Costa dos,</author>
		<author>Souza, Guilherme Silverio Aquino de,</author>
		<author>Gleriani, José Marinaldo,</author>
		<author>Velloso, Sidney Geraldo Silveira,</author>
		<electronicmailaddress>joao.flavio@ufv.br</electronicmailaddress>
		<editor>Gherardi, Douglas Francisco Marcolino,</editor>
		<editor>Aragão, Luiz Eduardo Oliveira e Cruz de,</editor>
		<e-mailaddress>daniela.seki@inpe.br</e-mailaddress>
		<conferencename>Simpósio Brasileiro de Sensoriamento Remoto, 18 (SBSR)</conferencename>
		<conferencelocation>Santos</conferencelocation>
		<date>28-31 maio 2017</date>
		<publisher>Instituto Nacional de Pesquisas Espaciais (INPE)</publisher>
		<publisheraddress>São José dos Campos</publisheraddress>
		<pages>5103-5110</pages>
		<booktitle>Anais</booktitle>
		<organization>Instituto Nacional de Pesquisas Espaciais (INPE)</organization>
		<transferableflag>1</transferableflag>
		<abstract>The Earth surface contains information that may differ according to the data taken by the sensor. With the increase the number of spatial sensors it is possible to analyze, in a period smaller than 16 days, the same terrestrial surface in different resolutions. Semivariograms curves were generated for a scene with predominance of cerrado, eucalyptus and grass with data OLI/Landsat-8 30m, MUX/CBERS4 20m, PAN-MS/CBERS4 10m and RapidEye 5m. It was also generated the descriptors of texture Entropia, Angular Second Moment and Contrast in windows 5x5 and 15x15 which were used in a classification pixel by pixel. It was observed that for land cover - cerrado - there was no stabilization of the semivariogram, probably due to the many typologies found in the scene (campo cerrado until cerradão). For the red band (R) there is stabilization of the histogram, which does not always occur with the near infrared band (NIR), probably due to the saturation of the NIR signal with values of Leaf Area Index (LAI) higher than found in R channels. Stabilization of the histogram occurs with windows inversely proportional to the resolution, showing that the better the spatial resolution the greater the variance and a larger window is needed to describe it. The windows size was not conclusive and the use of red channels should be used in preference NIR channels or NDVI.</abstract>
		<area>SRE</area>
		<type>CBERS</type>
		<language>pt</language>
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