Neural Approach of Sub-pixel Rice Landuse Classification for Optimized Irrigation Scheduling

dc.contributor.author Tang, Lie
dc.contributor.author Karkee, Manoj
dc.contributor.author Steward, Brian
dc.contributor.author Steward, Brian
dc.contributor.author Tang, Lie
dc.contributor.department Agricultural and Biosystems Engineering
dc.date 2018-02-13T03:36:08.000
dc.date.accessioned 2020-06-29T22:32:49Z
dc.date.available 2020-06-29T22:32:49Z
dc.date.copyright Sun Jan 01 00:00:00 UTC 2006
dc.date.embargo 2012-12-03
dc.date.issued 2006-07-01
dc.description.abstract <p>Irrigation scheduling optimization is carried out in the context of a complex system of agricultural practices and crop calendars. Remote sensing is being used for the monitoring of crop development, crop health, and cropping practices. However, this is possible only if the resolution is sufficiently high to classify patches of different types of crops and cropping practices. MODIS imagery is essential for national or regional scale studies, but has a spatial resolution of 1 km and thus results in sub-pixel mixing of different land covers. In the case of rice farms, one pixel may consist of some proportions of rice grown under different cropping system such as one, two and three crops per year as well as other land covers. Classification of the land area covered by individual pixels is of the great importance for irrigation scheduling. A method was developed for classifying sub-pixel rice land area using a neural network. Temporal patterns of NDVI, which can easily be remotely sensed, depend on and result from the complex relationship between NDVI and cropping practices associated with a pixel. These parameters consist of the proportions of different types of rice and their emergence dates. An artificial neural network (ANN) was used as a model inverter to estimate these parameters. The data for this research were produced using the SWAP crop growth model. The ANN produced up to 95.7% accuracy in crop proportion quantification with an average emergence date error of 9 days. This method had a low computational cost taking 1.22 microseconds per pixel classification in a candidate experiment conducted in a laboratory personal computer.</p>
dc.description.comments <p><a href="http://elibrary.asabe.org/abstract.asp?aid=20713&t=3&dabs=Y&redir=&redirType=" target="_blank">ASABE Paper No. 062124</a></p>
dc.identifier archive/lib.dr.iastate.edu/abe_eng_conf/25/
dc.identifier.articleid 1035
dc.identifier.contextkey 3507168
dc.identifier.s3bucket isulib-bepress-aws-west
dc.identifier.submissionpath abe_eng_conf/25
dc.identifier.uri https://dr.lib.iastate.edu/handle/20.500.12876/261
dc.language.iso en
dc.source.bitstream archive/lib.dr.iastate.edu/abe_eng_conf/25/Steward_2006_NeuralApproachSubPixel.pdf|||Fri Jan 14 22:55:21 UTC 2022
dc.subject.disciplines Bioresource and Agricultural Engineering
dc.subject.keywords pixel mixture
dc.subject.keywords artificial neural network
dc.subject.keywords remote sensing
dc.subject.keywords temporal vegetation signature
dc.subject.keywords rice cropping practice
dc.title Neural Approach of Sub-pixel Rice Landuse Classification for Optimized Irrigation Scheduling
dc.type article
dc.type.genre conference
dspace.entity.type Publication
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relation.isAuthorOfPublication ef71fa01-eb3e-4e29-ade7-bcb38f2968b0
relation.isOrgUnitOfPublication 8eb24241-0d92-4baf-ae75-08f716d30801
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