Robust Abnormal Event Recognition via Motion and Shape Analysis at ATM Installations

Algorithm 1

Computation of MHI.

Input: diffImage, ,

Output: mhiImage

height = mhiImage.height();

width = mhiImage.width();

for   to   do

    for   to   do

   if  () 0 then

      mhiImage.setPixel() = ;

      continue;

   end

   if  () − 1 >   then

      mhiImage.setPixel() = val;

      continue;

   else

      mhiImage.setPixel() = 0;

   end

    end

end