Overview of Fingerprint Kuzivikanwa Technology muFingerprint Scanners

Iyo yekufambisa nzira yekuverenga nzira yepasi rose inofungidzira kutungamira kwechikamu chimwe nechimwe chechifananidzo chemunwe zvichienderana nemuenzaniso wekutungamira. Iyo nzira yakatsanangurwa inogadzira iyo madivi emunharaunda yeminwe yemufaro maererano nenzvimbo yepakati uye peturu point yemioni yeminwe ine imwe nzvimbo yemunharaunda inogona kunge iine dzakasiyana zvigunwe zvigunwe minda. Asi iyo GBDTOK nzira haigone kusiyanisa shanduko dzakadai.

Kushandiswa kwakanaka kwemuenzaniso wemunda wekuti kuunza mifananidzo yeminwe, sekutungamira kwekutungamira kwemunwe wemuinvomhu kwakadzivirirwa neCAPPEN2T1 zvinzvimbo nenzira kwayo, mune izvi, ht "uye 9mn ​​zvakasanganiswa nenzira yeGradenti yekugadzira nzira yemunda, iyo inoshandiswa kuongororwa pasi uye kururamisa kutungamira kwerugwaro. Minwe yemakwayini yechiScanner inoshandisawo iyi nheyo.
Kuverenga kwakakodzera kweiyo yekugadzira matanho e-low-emhando yeminwe mifananidzo ichiri dambudziko. Algorithms yekufungidzira maitiro ematongerwo enyika seyakazviratidza sezvinobvira uye inoshanda post-kugadzirisa algorithms inoda kufungidzirwa uye kuvandudzwa. Kuverenga kwekuverenga kwemavara kunoreva kuverengerwa kwekuverenga matanho. Vazhinji algorithms, senge chikamu chealgorithms, kuisimudzira Algorithm, nezvimwe, kazhinji shandisa frequency maficha, nzira yekuverenga mafambiro equents qualiss yekuongorora maitiro, iyo yekutanga nzvimbo (a) nzvimbo yemifananidzo (a).
Iyo spectrum mufananidzo (b) inowanikwa mushure mekuchinja kwechina, uye kune maviri mapepa mumufananidzo wemuenzaniso. Kutungamirirwa kwekubatanidza mapepa ekutungamira kwemitsetse, uye kureba kwemitsetse kunoenderana neavhareji yekuparadza mitsara munzvimbo yemifananidzo (a). Kureba kunogona kuverenga huwandu hwekutonga, asi iyo yakaderera-yemhando yemifananidzo nzvimbo haizove nembeu dziri pachena mushure meQiao Liye Shanduko. Imwe nzira yekuverenga iyo frequency ndiyo nzira yekufungidzira 'am'j, yekutanga nzvimbo iyo nzvimbo yemifananidzo pane iwo maitiro. Chirongwa mune yakatarwa kutungamira, uye wozoverengera nguva yekufungidzirwa kwechiratidzo chakafungidzirwa.