1. A dual field of view (FOV) imaging system, comprising: a composite lens array including a first lens set positioned to focus a first type of FOV and a second lens set positioned to focus a second type of FOV; and a composite focal plane array (FPA) including multiple FPAs, wherein the composite FPA is disposed at the first type of FOV and the second type of FOV for producing a seamless mosaic dual FOV image of a target region.