%?This?funtion?takes?dissimilarity?distribution?as?input?and?output?the
%?shot?boundary.?It?detects?the?shot?cuts?with?adaptive?threshold
%?algorithm.?

function?[cutPosition]?=?cutDetect（distA）

%?model?parameter
Td?=?5;
w?=?20;?%?the?windows?size?is?2*w
step?=?10;

cutPosition?=?[];
%?scan?the?cuts
i?=?1;
while?i????mid?=?i;
????left?=?mid?-?w;?%?left?bound?of?the?window?
????if?left?????????left?=?1;
????end
????
????right?=?i+w;?%?right?bound?of?the?window
????if?right>size（distA1）
????????right?=?size（distA1）;
????end
????
????%?determine?whether?mid?has?the?max?value?in?the?neighbourhood
????maxw?=?max（distA（left:right2））;
????if??distA（mid2）?????????maxpos?=?find（distA（:2）==maxw）;
????????if?i????????????i?=?maxpos（1）;
????????else
????????????i?=?i+1;
????????end
????????continue;
????end
????
????%?determine?whether?mid?is?big?enough?to?be?a?cut
????lmean?=?mean（distA（left:mid-12））;
????lstd?=?std（distA（left:mid-12））;
????rmean?=?mean（distA（mid+1:right2））;
????rstd?=?std（distA（mid+1:right2））;
????if?distA（mid2）>max（lmean+Td*lstd?rmean+Td*rstd）
????????cutPosition?=?[cutPosition;distA（mid1）];????????
????end
????i?=?right+1;
end
j?=?0;
while?i????if?j?>?0
????????j?=?j?-?1;
????????continue;
????end
????if?sum（distA（i:i+w/4））-sum（distA（i+step:i+step+w/4））?>?...
????????sum（dist（i:i+step+w/4））/（step+w/4）
????????cutPosition?=?[cutPosition;distA（i+step/21）];
????????j?=?step;
????end
end
cutPosition?=?sort（cutPosition）;
for?i?=?1:size（cutPosition）
????cutPosition（i2）?=?distA（cutPosition（i1）-12）;
end
return;

?屬性????????????大小?????日期????時(shí)間???名稱(chēng)
-----------?---------??----------?-----??----

?????文件????1658864??2018-03-30?22:15??Av20204332.mp4

?????文件???????1681??2018-04-15?18:12??cutDetect.m

?????文件????????281??2009-05-28?21:01??EulerDistanceDiff.m

?????文件???????1060??2018-04-01?17:23??getCannyHistogramFeature.m

?????文件????????767??2018-04-16?00:06??getHSVHistogramFeature.m

?????文件??????41136??2018-04-15?17:52??GUI1.fig

?????文件??????12704??2018-04-16?00:14??GUI1.m

?????文件???????4787??2018-04-16?00:07??my_shot_detection.m

?????文件????????941??2018-04-16?00:17??readme.txt

?????文件????1118338??2018-03-30?20:35??Av3346624.mp4

?????目錄??????????0??2018-04-15?17:53??參考文獻(xiàn)

?????文件????1398474??2018-04-01?09:26??參考文獻(xiàn)\shot_detection.zip

-----------?---------??----------?-----??----

??????????????4239033????????????????????12