TransMatcher: DeepImageMatchingThrough TransformersforGeneralizablePerson Re-identification: Appendix

Some algorithms perform unstably across different runs, thus the average among several runsisamorestablemeasure. Using a unified measure is convenient, concise, and space-saving for ablation study and parameteranalysis. HereH = hand W = w,but to be clear,let'sdenote them differently. Then in Eq. (7), GMP is applied along the last dimension ofhw elements, resulting in a vector of sizeHW. Third, the proposed method has already considered the efficiency,with itssimplified decoder and balanced parameter selection, and thus it is the most efficient one in cross-matching Transformers as shown in Table 2 of the main paper.