应用背景
自从微软发布了kinect for windows sdkv2.0以来，开发者们就利用此外设优越 特性来进行手势识别，尤其是此更新版本加强了对骨骼进行追踪的特性。
关键技术用于kinect 的手势识别程序。一个不错的例子，易于上手-this source code is based on the IR camera kinect, and also hand gesture reconiztion theory is applied .
SHOW FULL COLUMNS FROM `jrk_downrecords` [ RunTime:0.002965s ]
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:0.120902s ]
SHOW FULL COLUMNS FROM `jrk_tagrecords` [ RunTime:0.002138s ]
SELECT * FROM `jrk_tagrecords` WHERE `status` = 1 ORDER BY `num` DESC LIMIT 20 [ RunTime:0.001960s ]
SHOW FULL COLUMNS FROM `jrk_member` [ RunTime:0.002412s ]
SELECT `id`,`username`,`userhead`,`usertime` FROM `jrk_member` WHERE `status` = 1 ORDER BY `usertime` DESC LIMIT 10 [ RunTime:0.003700s ]
SHOW FULL COLUMNS FROM `jrk_searchrecords` [ RunTime:0.002228s ]
SELECT * FROM `jrk_searchrecords` WHERE `status` = 1 ORDER BY `num` DESC LIMIT 5 [ RunTime:0.003448s ]
SELECT aid,title,count(aid) as c FROM `jrk_downrecords` GROUP BY `aid` ORDER BY `c` DESC LIMIT 10 [ RunTime:0.020577s ]
SHOW FULL COLUMNS FROM `jrk_articles` [ RunTime:0.002421s ]
UPDATE `jrk_articles` SET `hits` = 1 WHERE `id` = 216777 [ RunTime:0.001199s ]
