Abstract: The detection of potato surface quality is of great significance to the potato industry. This
paper summarizes the applications of potato surface quality detection by machine vision at home and
abroad. It includes the detection methods of potato’s weight, geometrical shape, surface defects and the
classification methods acoording to surface defects. It describes the new approaches and progresses on
potato surface quality detection as well as shortcomings in exiting methods. At the end of the summary,
it outlooks the development tendency and research directions in the future researches.

Key words: machine vision, potatoes, image processing, quality detection