I am currently working on a new publication that uses the same control algorithms that I implemented on another experiment. The controllers are well explained in the published paper but I wish to incorporate the block diagrams and a summarized explanation of the controllers in the new paper.
My question is: can I reuse these figures? do I require permission or a citation will suffice? My reasoning for doing this is to provide the reader with a clear picture of the controllers rather than just a reference to a paper.