CINXE.COM

Just a moment...

<!DOCTYPE html><html lang="en-US"><head><title>Just a moment...</title><meta http-equiv="Content-Type" content="text/html; charset=UTF-8"><meta http-equiv="X-UA-Compatible" content="IE=Edge"><meta name="robots" content="noindex,nofollow"><meta name="viewport" content="width=device-width,initial-scale=1"><style>*{box-sizing:border-box;margin:0;padding:0}html{line-height:1.15;-webkit-text-size-adjust:100%;color:#313131;font-family:system-ui,-apple-system,BlinkMacSystemFont,Segoe UI,Roboto,Helvetica Neue,Arial,Noto Sans,sans-serif,Apple Color Emoji,Segoe UI Emoji,Segoe UI Symbol,Noto Color Emoji}body{display:flex;flex-direction:column;height:100vh;min-height:100vh}.main-content{margin:8rem auto;max-width:60rem;padding-left:1.5rem}@media (width <= 720px){.main-content{margin-top:4rem}}.h2{font-size:1.5rem;font-weight:500;line-height:2.25rem}@media (width <= 720px){.h2{font-size:1.25rem;line-height:1.5rem}}#challenge-error-text{background-image:url(data:image/svg+xml;base64,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);background-repeat:no-repeat;background-size:contain;padding-left:34px}@media (prefers-color-scheme:dark){body{background-color:#222;color:#d9d9d9}}</style><meta http-equiv="refresh" content="120"></head><body class="no-js"><div class="main-wrapper" role="main"><div class="main-content"><noscript><div class="h2"><span id="challenge-error-text">Enable JavaScript and cookies to continue</span></div></noscript></div></div><script>(function(){window._cf_chl_opt={cvId: '3',cZone: "publications.waset.org",cType: 'non-interactive',cRay: '91340e63698bf928',cH: 'VMHE7T1DRsxKVJzaW_ZQPFjhzhTLF3ABNomW4QYr3Nk-1739777260-1.2.1.1-1iiLzF_50OWN8isgfwcjeLoLRNopTT5gnupdCNMI8Ifat3kuGut7ub03MZhbdyMq',cUPMDTk: "\/10008185\/topographic-mapping-of-farmland-by-integration-of-multiple-sensors-on-board-low-altitude-unmanned-aerial-system?__cf_chl_tk=_E78O7rqR.qyMNMybWTg4nWfUP.XOmzoe6KeSNtDfs8-1739777260-1.0.1.1-BP8vmm9YmrKSfgW92b3cQvb47QGszXDQixSKl10chmI",cFPWv: 'b',cITimeS: '1739777260',cTTimeMs: '1000',cMTimeMs: '120000',cTplC: 0,cTplV: 5,cTplB: 'cf',cK: "",fa: "\/10008185\/topographic-mapping-of-farmland-by-integration-of-multiple-sensors-on-board-low-altitude-unmanned-aerial-system?__cf_chl_f_tk=_E78O7rqR.qyMNMybWTg4nWfUP.XOmzoe6KeSNtDfs8-1739777260-1.0.1.1-BP8vmm9YmrKSfgW92b3cQvb47QGszXDQixSKl10chmI",md: "T49sW8QrrTG_9AoM_jnqUZWuEiB2YPQewVbiBomM9aU-1739777260-1.2.1.1-SBjBi1hNPfy15S3fnD4HRMJxKSE12xvY_n0Gh0gtHaNbUZadS54cIKcwp.FPyHa.G5St9mVvLrzsJaTlCoG8q23QQIVKKyfTxUIgndv0EV5fJid.qiXt3ERm6bfF7YtyUg65ElmQZlAf2eb18q1PssLVgmQtGjnRJKV_yNIn999Ob8P.uZnxm0xEjgzDj54KLyWvqewjCLx8SUBKJbJVPXqYwrxGaAlkxFsMQ3UTY4oAiiiyLK7G2ugQ33mjTk7wn8TT8jlD6E57ydHD3XCtunBpZ2U3i28m4exQmcFAq1TyrZGPckPL16tBkYxrNRFCmnOz2MkvSWEA9H0146IwcUNjfchXJyJ9Cb3EQBZkMfGPndFPxMWrGs0B9RNyRGjOuOTr0ykQjy3LKGvkk2yq.RhhSY81SdJBn9QcXIpcjxGRc49VZZrE2Tj8DR2V_mE7kfVt5eMvU.mPgxpl26Q0dq5Ee70f4G8rIkffFynO5ARxAnP9EpaL6kzqZQlffyd9CT_Qu76VfIDbQ7vnRl0wMSyqM2IdyVtVxN_QE77H3JUEYAVwyvdYagapKNF2yNtWaJdMfp9ECq2mojt6EVeyN2jcmZAErTjtCwACvnhJJQcL744jaokRdrQikAC8VtNVVFcVzVREfYJAuSgTuyZtnV.pRDGxNA0XPKkxw4a2ShlqLmTTfsNbi.iW.gY3lB9bQVm8JfqhCGE6pzdSewbQM1pjxIXCbVRRb80NQplv31bWMHWbhSHibWVk67S5QidLuOezlUO9jC_j01pGdUkKLoBPlzPb9183pqg.iZALc1jltCAiHc0nCRsNriCF8dB.sqV6pG8W7DkEHYbcJAZY4W8DlqDetsxmJn7V9IzPkGqteSg5T71CprQwxaHOu.E18Dwoht9V_uaLFdhRh4AOaeztLNPN4_F64DxBurKR2L6gPwbknaXFDXDcLtz8pW95rUXj7xDqUMi4_BRbe9MXBta8THKQdnoKlgrWbhBQlVWfh.kszOgNVHlrMZonkW.iA0DBv.HDeo7HRsA_PDiCgGU3wlqUnhQvGp7HvhT9ot.xeJ4iomWOg6Jh9KS7yujNssQ1g8mEzVmC0XzQpVrnE9783ie.zFl9PUs1AzORfDJLVESLRITZyfcIE9O2s17wgkxV6dhTo_DDD_Nn_yAgWy3qRXpz_FevzGxJUSIKkZhcKQJDGrHALIU0ZKUcuxYXb8kkZlFLwyTbaH.5RkxnfQTq8SVbxEZ3Xg1O7ZTpHKTrIFB7yOoS1X3Id85rOKIdlgTXIV5hEoTHxCsV0uHjcqujaDivP1gP2f34YghA9pqk1WBmiyJxSPCaBDD7qLNIBvsMz28V.sQOrzRzRJzTjADy_C_klJ7RM7K1qxfCcygsOpYz46rNm2QnmBl0mnpT9bAFEFGvEr4XHhLtNQRafXL2DO5vg9Y0YK9fBIhs7U8D.8E8ZtI9rrgH3aPcRAxxW36hStJm6Fz1eXKzPq3ZEO82OPP_fzfdqtoy3BzGLcYSveAPUcOzKxyFLq9UURNimhm2hEfFiXBgY5zbUY2VWfE7vSk1.8r.j_IJl4o1wNsR9iaKUMWb.7srCL5HgVRIzH6_pydmU8gLVfPgb7Wwn6cITGlkceXVHvN37eT9zlySoqfsuPZpnCayDKiNiqo2UIT8.00dMRLr7clguip4on8DgmzsbK9QGTRFhEl3wkPEBFC5r0wC559VidulniULvSMLWDUo4ZFI7gai8nfEGjaymZ7Tgp7gkKcAMgXgubMwSWo3212EWEKG_2Mod32_9hCH4aUO1aaQeKf2Cw_VqgU9.4OSheKgmXbr5pw45tCl1m7ehbMCJu_prLkof2cK8EgxKUILj97U.qTsQBIJDdPaQ6uY0BHgMk9MWVGkfCizZk3CWWeM0BqDwUMDc9FuYg1sn.UitOtQ2xn5ifRl_A7QNcbcUf9Fbc4eFpInclKiI2PF4gV_G5PfYiRGmqP5WD6KzEGuJDy4SCatJlW5TKVakd8IC2fclzA_WMNSJEy_L6zvGC_owN.VZDgoW2aRpB.T4LaRlMq48Y2B3KGVOtQS_.C082.hD.dafybgEHgEpHvP3lVlRnloWK5.i2RfZqyUxdKR9zhGpRHZpMCJB7lZf4wvcBnQeJFdX0CIaUwn8rPkJOmyWj_aXX_n6BxwTLtqUifTVMU_nIsHxNH7PQ",mdrd: "KJMgNntL0.K3KfvdrBfBNUpy87QReQK5.6esjZRwnYY-1739777260-1.2.1.1-CK0LHvowbwfQEmOLt0DgloHwLp7hLm9WBrJUUQhggRjmHjIU1WRvFlIuF_YEVVQBTIn5UOH7i4Hfyfg5scutSMNN7UcQ52l3MPrOivhHeW3HNizGgFG2_y9EUcgTM6U6FyeM_hreu5EvH1csvPQNiLGfK7Ssqt9NYNzvCPZRr.G_rsej0LAAMsYSnmuXqZeNA3OBXvyn97k3vai60NAyk32ozD8BYtvyW.KxgaRc8qWypAsGhd.uRhBBE3slJr8JMoA6jlUCH83EjNX386TKxQ3rj03SicvRy2HTUlK93k7dXQvYUbXgpPLfgTpgLMlS2pV641M6OZawvUGcAjhS4ZXgDDEFB3duo_Z72rjaag_VfLwLUJYGyZW8CRpTsK4px4zZ1R0Hpumw8FlCSTHSlCTLE5UXAXfiQ7AbYU9QbW2sK_PomBNjU6VfVxqjDYxrFPvQK7Z04KgFMtjp5K85iHumb2OjyNTYMFTgL6lveBVO3.t7T6.uBHbwM6szHP1GPKXrXOMr85k1yOSIAiulGChlA6p3XEBUk2Q5AjgyjGNC69aR3eJdoe00XZzgyx8.F28ISoPYaM2MAHyxBWO._ua2D3CGGb86ZOcJL4daBqtDGmYXGm7oF9vHT_q_dIPEsoCd6eUvpL4dL8_45T3Q7OBLzgWFAM6PpcDuZWTvkwBIDT1m64jyugVff5eGwmseXmUWd86dv6HD8MWPXfYrYVJC5c_41mkgz7XN6TMKgyHspQiXvBymDDqmuvRFwUyOtYYB5GXQgSorbICr241KGBoLO3TT..U8QnwiK.h7zPqQHEjEyrakVVvHVfjPQjksbm2bcyabRMN9ekTdejVXv5wz8wNUnUEUKgazwk1iebFFM40Dj_8rmWpb5cDiNMV5SGKCg.DHZaVWlEBkqWo1h.pUxDeRAQaz_HClJS0ZkiHLSO8GGGaaen2rqZEwV9CAbgPfroyMgkVKHNlucWXUY55BudB_6TEA2x0KT_0wUF.b.8DMjDsNj4wUeO31ZxUisEID9tA.NajR1eBlL4BrucLPTk5vDsBA8.e3yiWDS9HCszRoUyv0SBGBq9WT.dlqNpzkpT9C5Ukwsh8BXzwRpqKEx3hYcusX5aCU1jzPBM2tWEc3uiu6t1PnCQjcyb50c1A0WycPebuHxVtQ5QC3J0q3nqjSmkDmnah5eb9p6mpQGt0Vzss4FNlF5WyxRG4DMFWa2STMQT4.jBkcTo5yN0J40RZSEGzUwUolRIRd2Fg4vLgH2w_ajWyU3J1Hq99_jCLsaZ5hwWdFQHPMW07b10jqQj0vPsHnmnH0SG3vmI2c24sQwpQnKogdY3DGGUWIPTSikPLIWcnXcMMYG6a5HMxsIgC3_RVTdkISjqjnzDhBFLt4PV1s7Lu5MDWasI5riuJK2FUq4mwa.i1sjsCplT8dU5MkMb009EGuGDr31g8eJq8rW2qXG797qmyCufgni02gCI9mNUk5APCgf8n_gaxLNNi9qHmwL1v7QAhVjPVyHVG_FxhuezVy6BMy57YwPHEja_1VjK5PD7UrHeS2qazi9qxatKPUBYNnmgVmr1YL0G7ZzH.ohiQft2EPjnm8cD6q48Rn53sPuki.b2SoYAYQid2DHi68MA2WbntWAhGkhusD1kFkzAnBc.n3fK2APa7.nn60ChOgH6EXGrTgVp0IhAVwdiAcKgweu44PbdZaxnidw7mv.RqJoxiLDWgYcYMuyBwivAqUW6Oa9.8fQ_EC8ieoxyDnjCc6VMwEI1z1nu7KiLgimZC_fPwUo_Q0TMJLsyGUnuB0psui7yf2XHz5aGN14JmCCpdl8ZemRCwqt0xp_80nsNL7CgYXn6cvPQkC50rM80VCik2ZtI2sEOy6201zP0moVHCwNuNfroB5ttxTI7yFj_m7yuOOuckEUTnLeLIp5zQIn1dJcy2FanpnoqH6QlPSZ5PD4YN1iCvUAQtHnY4hjcJ5gVbKcvcH"};var cpo = document.createElement('script');cpo.src = '/cdn-cgi/challenge-platform/h/b/orchestrate/chl_page/v1?ray=91340e63698bf928';window._cf_chl_opt.cOgUHash = location.hash === '' && location.href.indexOf('#') !== -1 ? '#' : location.hash;window._cf_chl_opt.cOgUQuery = location.search === '' && location.href.slice(0, location.href.length - window._cf_chl_opt.cOgUHash.length).indexOf('?') !== -1 ? '?' : location.search;if (window.history && window.history.replaceState) {var ogU = location.pathname + window._cf_chl_opt.cOgUQuery + window._cf_chl_opt.cOgUHash;history.replaceState(null, null, "\/10008185\/topographic-mapping-of-farmland-by-integration-of-multiple-sensors-on-board-low-altitude-unmanned-aerial-system?__cf_chl_rt_tk=_E78O7rqR.qyMNMybWTg4nWfUP.XOmzoe6KeSNtDfs8-1739777260-1.0.1.1-BP8vmm9YmrKSfgW92b3cQvb47QGszXDQixSKl10chmI" + window._cf_chl_opt.cOgUHash);cpo.onload = function() {history.replaceState(null, null, ogU);}}document.getElementsByTagName('head')[0].appendChild(cpo);}());</script></body></html>