基于G a b o r 滤波的指纹识别算法采用基于结构的特征提 取方法进行指纹识别, 该算法可分为以下步骤: ( 1 ) 定位参考点; ( 2 ) 以参考点为中心做同心环作为特征提取区域 ; ( 3 ) 对特征提 取区做归—化处理; ( 4 ) 利用 G a b o r 滤波器对特征提取区域 8 方 向滤波 ; ( 5 ) 提取指纹 F i n g e r C o d e 特征; ( 6 ) 将提取的指纹特征 与数据库中的模板匹配, 从而得出指纹识别结果。
SHOW FULL COLUMNS FROM `jrk_downrecords` [ RunTime:0.001363s ]
SELECT `a`.`aid`,`a`.`title`,`a`.`create_time`,`m`.`username` FROM `jrk_downrecords` `a` INNER JOIN `jrk_member` `m` ON `a`.`uid`=`m`.`id` WHERE `a`.`status` = 1 GROUP BY `a`.`aid` ORDER BY `a`.`create_time` DESC LIMIT 10 [ RunTime:0.092122s ]
SHOW FULL COLUMNS FROM `jrk_tagrecords` [ RunTime:0.001268s ]
SELECT * FROM `jrk_tagrecords` WHERE `status` = 1 ORDER BY `num` DESC LIMIT 20 [ RunTime:0.001940s ]
SHOW FULL COLUMNS FROM `jrk_member` [ RunTime:0.001389s ]
SELECT `id`,`username`,`userhead`,`usertime` FROM `jrk_member` WHERE `status` = 1 ORDER BY `usertime` DESC LIMIT 10 [ RunTime:0.003743s ]
SHOW FULL COLUMNS FROM `jrk_searchrecords` [ RunTime:0.001140s ]
SELECT * FROM `jrk_searchrecords` WHERE `status` = 1 ORDER BY `num` DESC LIMIT 5 [ RunTime:0.003322s ]
SELECT aid,title,count(aid) as c FROM `jrk_downrecords` GROUP BY `aid` ORDER BY `c` DESC LIMIT 10 [ RunTime:0.015023s ]
SHOW FULL COLUMNS FROM `jrk_articles` [ RunTime:0.001390s ]
UPDATE `jrk_articles` SET `hits` = 1 WHERE `id` = 339821 [ RunTime:0.002468s ]