指紋傳感器及其在“指紋鼠標(biāo)”中的應(yīng)用

指紋傳感器(FPS200) 運(yùn)用圖像搜索技術(shù),通過(guò)改變傳感器電容陣列參數(shù),能在1 s 內(nèi)掃描多幀指紋圖像,并自動(dòng)選擇質(zhì)量最好的供后端進(jìn)行相應(yīng)處理,顯著減低系統(tǒng)誤識(shí)率、拒識(shí)率。主要介紹基于該傳感器開(kāi)發(fā)的“指紋鼠標(biāo)”。根據(jù)鼠標(biāo)內(nèi)部較大空間、傳感器FPS200 及微處理器體積很小的特點(diǎn),將三者集成為集鼠標(biāo)與用戶身份識(shí)別功能于一體,既方便快捷、又唯一可靠。實(shí)踐證明,它能為計(jì)算機(jī)用戶提供完善的身份認(rèn)證,在諸多領(lǐng)域有著極其廣泛的用途。
關(guān)鍵詞: 指紋傳感器; 圖像搜索技術(shù); 驗(yàn)證; 辨識(shí)
Abstract : By using the image seek technology to change the capacity array parameter of the fingerprint sensor , FPS200 can scan the fingerprint diagram of many frames in a second ,and automatically choosing the best image to treat . The FAR and the FRR of the system can be widely reduced in the practice.“Fingerprint mouse”which base on the sensor is introduced. The mouse has been made possible by taking account of the roomy space within mouse ,tiny chip patch for sensor FPS200 ,together with small size of available microprocessors ,The usage of this device is very easy and reliable. It can provide perfect identity for computer user ,and there is very extensive using in many realms.
Key words : fingerprint sensor (FPS) ; image seek technology ; verification ; distinguish