A lightfield is a way of recording an image with ray angle information as well This means that you know where the light has come from, which allows your to amo

A lightfield is a way of recording an image with ray angle information as well This means that you know where the light has come from, which allows your to amongst other things alter the focus/depth of field after the image had been captured. Because you can refocus and change the depth of field post capture, it allows you in theory to do better image segmentation.