Comment on “Temperature and Parasitic Photocurrent Effects in Dynamic Vision Sensors”

In the title paper, the temperature dependence of event threshold and leak activity frequency of dynamic vision sensor are researched, and a few new metrics are presented to describe the features of the leak event. A large amount of experimental data is shown to verify the theories. We comment on this paper, since Nozaki and Delbruck make some mistakes on formula derivation and the experimental data calculation. The errors are pointed out with detailed explanations, and the revised formulas and calculation results, together with some corresponding analyses, are provided.