Detection of buried landmines by ground penetrating radar (GPR) normally suffers very strong clutter that will decrease the image quality in GPR data. Problems are also encountered when imaging steeply dipping land

投影积分数字重聚焦，光场相机重聚焦。重聚焦原理。-Integral digital projection refocusing, refocus light field camera. Refocusing principle.

Refocus of images and videos