CINXE.COM

<!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: '91356bba3c05fce3',cH: 'r.0tm4PbAYI8.htJc6yHTJl9XD_srMVRGO18Ufu8dDY-1739791568-1.2.1.1-EyxFHu_z290EU5u8IkHT5959Txc1uVK5E5B_klVZ306WPDwRGuuGbmA0Z_Tu4EFl',cUPMDTk: "\/abstracts\/search?q=scale-space&__cf_chl_tk=uPgiEZNBZGzjOav2SugjlgpBOKS2icjcnEZRO6.JN58-1739791568-1.0.1.1-e.TUjPge2FT.B1V7Af2FiFLuZhh_4BASdU5dvPzjlqo",cFPWv: 'b',cITimeS: '1739791568',cTTimeMs: '1000',cMTimeMs: '120000',cTplC: 0,cTplV: 5,cTplB: 'cf',cK: "",fa: "\/abstracts\/search?q=scale-space&__cf_chl_f_tk=uPgiEZNBZGzjOav2SugjlgpBOKS2icjcnEZRO6.JN58-1739791568-1.0.1.1-e.TUjPge2FT.B1V7Af2FiFLuZhh_4BASdU5dvPzjlqo",md: "QWkBplzy5OMMXS4dN3W.IYpKxeKSjelU9dYbvrotJLA-1739791568-1.2.1.1-JZ1BqZ8oGWXqygyOEP7.486V9j1j0OQau5jgzuVedwfJXQKvmyPa1sO7CyLoGeZCU6tg8a1PvOdlbS_SdWbjHg2ZGcx.Eb5yBoOUaneycrU2ob5CFM_CdRfB2qAfS86OMFrOZz2W3z8OaoU5PGFvEVPVvljtHbDIAAaByHpfn4hjRbSknziuUM3AtWeOmyHfhT1ZpppEcomcY40V7RPmvZgfZl09TEbNh.mUmxphtXIFQji1LNLsvQY8_5NgAs.4fLFjOSz3aeLPtod4PyJww7TsHu_Ht9OrxRiqKeqKpnxDS5ldKMLWIDzkABnqvzRIW6GO6sebgYtmTBX1fpkjcAiy6BlPYEsX4WfltY0tqHuyISZgLl0i6Cl8EX2euzq_cqZ7V8Gw5IQc.oB7hQqAPsDMBLKcVVPdDvmb4Q9IYBSVcOtf1E8szvURxxcC4ftAcQVzuBvKOz1l6gC3E4nrf6TdmNntF5PN_6dx61ZvOpaC8B.atd6mHA4t4htRS1_1IIopFeLXu_oR5DULJKYDsp_Ocb1ZmCZfcFzs5Qc5PZultMja3bTn2i8CDTfwc3Y5WEu18syp25gecqOopZDyP8MU9qd2_ij1s7S6f4CV.mGyXMIxmkfXET3dT6fgxGlSokYVHNmH9G5atSaWKgsz7V8Spl44SPy5fpH5NJTKwVaxyalR27vg71KeSfHYOvOWIN.0DKPRv2NRtgYSSfMzsXeKh9OUL4EnahzsRrWbZyfA_bQ8Fb7UFYlcmHcNBRZchd71E6ynTP0kVOQytRI5UPdwA7bBAKLekbmSusLDrN2w_.iWLzxfzTonbnj9.yGtg5I4VcgMue6uOCxMXpI.KHaCX6hpS4ZBgKUMuLrjekEAvIBPTM65fPD3wXfAmN7yvhZdPo0HddV9S5a7NAwdt0KhEiC44nVFBTfW0qAmiGh3bPGet_WSVtchkT8A.tFmZg._5FTiqhgszhC1qbGb6WJVoWHeSEIEM_HwTQgWXQ9YniVCPBeqhyPj9GF6xOPS9ra1Vuh7B2BIelrwMXzlJVep3Hjq4TLjyHJBEbxFZs8CNgtuMdJC9jPY4sTVk5jfFp0aP3ClyFRMWXhn4jxKAff_cjuyUpgPxjitW_KNiEXwlk89IPNn3Lb0hQKHlbTlP8cF.MgsDqgdkn49kBtZc3me8iCRwaLcZb.paCaLoHKq1HxeahUoH5tgYO5vqP2UopmkBwVGLcDeY_7OJnPjOMQ7fUQZv0yntXa4uVvsbFXbFwJt._pSYMz8xS851WamL9e3A8NFnAix00fKumlq2mhHDoK9JSxWGZhRE9jvWxlukk6Ks4Kgyi0ZZIRFp7Hww4VoYqRJQyGKSKSXAqk7DnVymATauMpi34P3kdBpgajAAKMHnT6U846LNfsBX9YC6p6ym.wEOAq1YxIcziEwYIMTiIBsx4Dqyl9lnqVNHYdHF2TobQUljPvNNsdr1BQN8C9A0logZ3oovUjbBeDUvGrtLobTKdKVf0Ch2FgU6fbFjyQYtKXOhNuWY8cWxb1xUV4U0Zw3wwukOUCwd3j2iP9H2I0bteLU_0L57ZvmUzAMi_er_pbESQHr5X8t2Q0iNUvUPcDBjDNUDX8d.T5R30gX8Zo4SNJXvLwMsGx7.okQOnTK.2YJ7KHN2cPZj7EMiEx8Gn02vZOSmAH1jKwT1zacDBqKEKPsBXSntcqTsii55CZy.54XLBvZ3jDf1i_VTEMSSMpgw6Hb2mq9Q7m1ibA6nBwnHk1.sWDHIOD2ZSPgfYnmhikB8S7rViyXsFj03_R1qKlJvmegT0sZPll3zdIrbuvYVM03Q2Fm0Xfd9hOB_RRcLV.uJayoI2.ZQc_RuCOte_tLBzBH17lTzS3PhQdBj1N3LI4dbFeBolbfmrJ2RR5CBHCOiVd0DJYGjEXb__bUjOmIuVDq2QwpPXfsZg",mdrd: "5JK8mgA1yXOfXpou6XZa_CvK7DeJScqtcS1YikZnhOw-1739791568-1.2.1.1-KiI7ElWdKfBfbSYJbRH6jFezHkuFSD_aFVaPD08gOwKTcly5QUCMs_vAxBbBz.sZR3vGnOr_L1lkER_QDsA36zRi0_Ge97TgOZCSy9csPBtN6i46DqCJKZ9Ulu6xqXuPiofbUfZ_5BjMOXGOPecycXSV0ahoTNDgy4R0KbGkteY37WY31AqpY20u5xqx26GmE9mcwt50FE.fu3X6unZtJ2p56udx0kQVlRpvQZgNXhFBzUoIGeijzeZ9kAKyRpD_JOdV73O31wtajRVv756GmdUuE3giiJPBhyj5iH_P_SVPKavhWCIbqXJKIhzjChZPRsmdDCrMU20sIyeefTlTln1k3bim9YO4Vd.WrCOXDbUzEh.ueRPFdMgUiRjmLhYlk6iippq2EOAJqegMm7n9mcfz26f3KUQQGqXUIKJ.LOviP1VuZYvUEMcmw33RvDT0Kc4gHhw1sOFq3PQtNIV92WwPfG1XEMRsBmMWsN.tTL5eqNimN_L0F9ft149unbLu1Ae4ihai115VK7L.r9j3kLBBvTDFPfqHuoeoTyISw26W0ynKIJiE6V0CP_.q6K9C5QniiR5sRiY.FGpzb_.Y.aCyQpXWDfrsjBbArcuNtq_knTZOTYFI_gQLsHWQlz9VhExSlwDReL5NGWNEik8CDZh3WHzju_3bUqyJHy0D7aeTEne.0QLwdEEdbEbAYMqZFK0wHz7sYLGgGDUvFNZzq9EZy_w_T5QPe83jwszdVrW9mqfv_ewF_YQtGUoSxdmj1t0Jrk1haz1zMT3zdNUK8_6pmXhfBnUYaT1wLE3s8rZ8ubWzZa_fnPsLuVtUL4HRqVQnawy8kHaohZXZ4m3xarGQCS6yDYcXwDbIe4FO._zPHASY6C.kPb1idadu5IjYn1bjUtn7hFEPiAN172wvoo9kMbGuGgjFXvww43pXQJbU4rkjbgAuqvk_C8eDI_8NG.fsBhiFZzmy4Bz.F3rw3SgLh5iOoiH3pl.J9joBdijJCrzpNgkjdy6_xBUmXQGGhQ6bsEQyXXKu0Yp1JP7pGVpucyHDNtuT52JTertSRL0WW.CFptVEmRnaJnxL_4t2PlKrYCC1oC2MsFa3aNezYftPdb2xnQZvXWes9GvAEKLwUFyPGoCJakZUj4SvQ9uJI_PbRexsxXm0KBSJM67YzHIvpe0QGjuZbuSMx20dWlmnNK3OVffSFQGWphC5fKwMnql9de.LNR8o4b7_oJNFINFDIuXY0vPf6db2_.gCKl_vHLpP.tHpxJW622sRw65aIxMM02B2TJKN_wAnnFp0AaToAKJHJu6D_btB.m9oPLoV8IgYBpIRnGK5Y3TRP98ZxmlcZr4wv5ZFD0li3kcy9Nf5lQUFHfX6gewOqK328rmiS5JOS7sJknCaH2N0DQc333CqNaEAwHIzC5ImhI5fWN_YdsFQAYMIgQON6atiZhJFx79NbSl5Enya5XZAX_45VJCe8_FYx15z.3ZlP12dAg5aZfCrR0TxPD1oIgx2czqs6coGmOMgT4XwvogQ1AfcNTdPiQ.XvYqoLSKRbTAgFS81Off1BKHoAViNXAamekanYSIpt6yDCOTDuVh0ZZ9hitJb9ercpHYV4IfXgzZkjrGAfhBsxWz.gkZEY3shbyPENz8PZcJb3osYm02Jl39vggUPE3.o8z1n3DGILF2yomd6a8OsTphxjLz07oUEsyRV.9ohFzuzkMjUUHGyKEEYD.mkrfa0yKd9xfkYrPYk076QHzryvgB2HGWSP_8eTk.Sy1gnVvooBLnJVYja.ihHSBwM3vqfqPHk10UMPzr7aFA6zSm2pCVjoVYJLNUZ1.RbmXkNcsENm7bgkr6nvxYwbrtJOF7i7vC6rRZsg5wEHEfmT3E2xOY568TcVnZGTiWE1EFKer3umXptWSIrLR8ZTm8xT3dvommDwBxo0Bqwb3tmVb_QiR7XvW6OmgmQeZlP4uomzViPSPS7F7HPS3FRaipkadgbEZmucO3_PHI5iA"};var cpo = document.createElement('script');cpo.src = '/cdn-cgi/challenge-platform/h/b/orchestrate/chl_page/v1?ray=91356bba3c05fce3';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, "\/abstracts\/search?q=scale-space&__cf_chl_rt_tk=uPgiEZNBZGzjOav2SugjlgpBOKS2icjcnEZRO6.JN58-1739791568-1.0.1.1-e.TUjPge2FT.B1V7Af2FiFLuZhh_4BASdU5dvPzjlqo" + window._cf_chl_opt.cOgUHash);cpo.onload = function() {history.replaceState(null, null, ogU);}}document.getElementsByTagName('head')[0].appendChild(cpo);}());</script></body></html>