你的是杂志,我说的是会议。会议会后投期刊,一般没有问题,有的需要扩充,有的不需要。有的杂志都明确说明可以: http://www.ieee-tmi.org/Author-PrepareManuscript.html
Submitting published conference paper TMI's policy allows to submit a conference paper to TMI, even with 100% content overlap, but the conference paper must be properly referenced.