CAJ | 학술논문

为了降低指纹识别的拒识率和误识率，满足嵌入式指纹识别系统的实时性要求，采用基于 ARM9处理器架构的芯片S3C2440的嵌入式指纹识别系统设计方案，并对二值化算法进行了研究改进。经过用本次嵌入式指纹识别系统采集指纹的试验，结果表明该方案结构简单、可扩展性强，拒识率小于2%，较传统算法的拒识率降低4.77%，误识率小于1%，较传统算法的误识率降低2.3%。本设计方案可行性高，改进的指纹图像处理算法提高了指纹图像的质量。
위료강저지문식별적거식솔화오식솔，만족감입식지문식별계통적실시성요구，채용기우 ARM9처리기가구적심편S3C2440적감입식지문식별계통설계방안，병대이치화산법진행료연구개진。경과용본차감입식지문식별계통채집지문적시험，결과표명해방안결구간단、가확전성강，거식솔소우2%，교전통산법적거식솔강저4.77%，오식솔소우1%，교전통산법적오식솔강저2.3%。본설계방안가행성고，개진적지문도상처리산법제고료지문도상적질량。
In order to improve the accuracy of fingerprint recognition,reduce the false rejection rate and false acceptance rate,to meet the real-time requirements of the embedded fingerprint identification system,this paper puts forward a de-sign scheme of embedded fingerprint identification system ARM9 processor chip based on S3C2440,also study and im-prove two value algorithm of the fingerprint identification algorithm.Results show that,the structure of the embedded fingerprint identification system is simple,scalability and portability.The false reject rate is less than 2%,compared to the traditional algorithm;recognition rate is reduced to 4.77%.The error rate is less than 1%,compared to the tradi-tional algorithm;the error rate is reduced by 2.3%.The design scheme has high reliability;the improved fingerprint im-age algorithm can improve the quality of fingerprint images.