path_restrict.m

来自「实现用MFCC作为特证向量的孤立词识别系统」· M 代码 · 共 13 行

function  out=path_restrict(in)
[a,b]=size(in);
p1=(a-1)-0.5*(b-1);
p2=(a-1)-2*(b-1);
for i=1:a
    for j=2:b
        if(((j-1)*0.5+p1<(a-i))|((a-i)/(j-1)>2)|((a-i)/(j-1)<.5)|((j-1)*2+p2>(a-i)))
            in(i,j)=0;
        end
    end
end
in(:,1)=0;
out=in;