@techreport{fdi:23795, title = {{A}gricultural statistics and space images in {M}adagascar : estimation of second rice season acreage in a sub-prefecture}, author = {{A}ndrianasolo, {H}aja}, editor = {}, language = {{ENG}}, abstract = {{S}pace images are of great interest, particurlarly for acreages estimation of crops in agricultural statistics. {B}ut their use in an operational way can't be done without some problems, mainly those about costs, for developping countries. {S}o must be found a way of reducing these three kinds of costs. {I}t means that the appropriate method must be able to supply results on some area, even if it is not covered by all the images used. {T}he author's approach tends to this, and comprises the following steps : 1) selection of a representative image, 2) selection of a date where most of the crops of a year are present, 3) stratification of the studied area, 4) construction of parameters for patterns (crops) recognition, 5) estimation of crops acreage in some area}, keywords = {{TELEDETECTION} {SPATIALE} ; {TRAITEMENT} {D}'{IMAGE} ; {ANALYSE} {DISCRIMINANTE} ; {AGRICULTURE} ; {PREVISION} ; {RECOLTE} ; {RIZ} ; {MADAGASCAR} ; {MARAVOAY} {ZONE}}, address = {sl}, publisher = {sn}, series = {}, pages = {4 multigr.}, year = {1986}, URL = {https://www.documentation.ird.fr/hor/fdi:23795}, }