该程序模拟成像过程中的欠采样模型，可以从一帧高分辨力图像得到一帧欠采样的低分辨力图像。-The program simulated imaging process due to the sampling model, we can start a high-resolution images to be an undersampling of low-resolution images.
SHOW FULL COLUMNS FROM `jrk_downrecords` [ RunTime:0.002008s ]
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:0.128494s ]
SHOW FULL COLUMNS FROM `jrk_tagrecords` [ RunTime:0.002872s ]
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SHOW FULL COLUMNS FROM `jrk_member` [ RunTime:0.003080s ]
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SHOW FULL COLUMNS FROM `jrk_searchrecords` [ RunTime:0.010117s ]
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SHOW FULL COLUMNS FROM `jrk_articles` [ RunTime:0.003257s ]
UPDATE `jrk_articles` SET `hits` = 1 WHERE `id` = 189107 [ RunTime:0.001474s ]
