algorithme à deux échelons

CONT: The detection steps of the two-stage algorithms are mainly as follows: first extract features, second extract region proposal, and third is classification positioning.
OBS: two-stage algorithm: A ""two-stage algorithm"" should not be confused with a ""two-step algorithm."" ""Two-stage"" implies a process with distinct levels or phases of operation, while ""two-step"" refers to a process involving two sequential actions.