  A simple motion amplification algorithm suitable for real-time applications
on mobile devices, including smartphones, is presented. It is based on motion
enhancement by moving average differencing (MEMAD), a temporal high-pass filter
for video streams. MEMAD can amplify small moving objects or subtle motion in
larger objects. It is computationally sufficiently simple to be implemented in
real time on smartphones. In the specific implementation as an Android phone
app, MEMAD is demonstrated on examples chosen such as to motivate applications
in the engineering, biological, and medical sciences.
