The Design and Realization of a Divider with Adjustable Precision in Fingerprint Enhancement
The normalization of the fingerprint is an essential and important step in fingerprint enhancement, and its implementation needs some high speed dividers of different lengths and precisions. However, traditional division algorithm used many subtractions to get the result, and fix-point operations should also be implemented when either the divisor or the dividend is decimal, which both make the computation time consuming. A modified divider with adjustable precision and length based on Verilog is proposed in this paper. It can process both integer and decimal with any given precision conveniently, and its pipeline structure is also very useful to execute serials output of fingerprint data, which is very attractive to the normalization of the fingerprint. The paper described its operation and the data structure in detail, and the simulation result indicates that the velocity of the divider is quicker than other dividers, and it decreases the computation times efficiently.
Weina Zhou Shuai Wang Xiaoyang Zeng
State Key Lab of ASIC &System, Fudan University, Shanghai Shanghai Maritime University, Shanghai State Key Lab of ASIC &System, Fudan University, Shanghai
国际会议
2011亚太信号与信息处理协会年度峰会(APSIPAASC 2011)
西安
英文
1-4
2011-10-18（万方平台首次上网日期，不代表论文的发表时间）