True Zoom with Cylindrical Light Feld System

Abstract

Light fields are a computational photography technique which allow features like refocusing and novel view synthesis. The previous work in light fields either have sampling bias or have a very complex acquisition setup. Here, we acquire a light field using a simple cylindrical arrangement of cameras. Our acquisition setup is simpler to implement where there is need to capture a large field of view. The parameterization we present uniformly samples the environment in the horizontal direction. Zooming options provided in traditional cameras either tend to change the relative sizes of the objects in an image(optical zoom) or introduce pixelation effect(digital zoom). We propose as well as demonstrate an approach that we have named “true zoom” that produces a significantly superior and realistic zooming effect.