常見例句雙語例句A critical step is the fingerprint enhancement that affects the process of thinning and minutia extraction directly.其中圖像預(yù)處理中的圖像增強(qiáng)是最為關(guān)鍵的環(huán)節(jié)，直接影響著后面指紋圖像的細(xì)化特征提取等處理。A fast and effective minutia extraction algorithm based on the orientation field and the frequency field was designed.提出了一種基于場結(jié)構(gòu)的快速而有效的指紋圖像細(xì)節(jié)提取算法。Fingerprint identification includes fingerprint image capture, image pretreatment, minutia extraction, minutia matching, etc.指紋識別一般包括指紋采集、圖像預(yù)處理、特征提取及特征匹配等步驟。 返回 minutia extraction