Qualification
An National Olympic Committee may enter just one men's team with 12 players, and just one women's team with 12 players in the regional tournaments. The reigning world champions and the host country qualify automatically, as do the winners of the five continental championships, plus the runner-up and third place teams from the Americas and Europe competitions, and the runner-up Oceania in the men's tournament. For the women's tournament, the extra teams consisted of the runner-up and third place teams from Asia and Europe, and the runner-up from Oceania.
Read more about this topic: Basketball At The 2004 Summer Olympics