Simultaneous acquisition of multiple images with higher dynamic range
Rene M A Teixeira, Kiyoharu Aizawa · 2014
Computational photography has redefined the possibilities of conventional photography. New effects can be obtained by mixing modified hardware with software. In this paper we present the basis of a theoretical framework for a computational camera. By using coded apertures, the framework is able to multiplex images of a scene and simultaneously acquire them. As an application, we show a system to capture images with different exposure values, a feature that is often useful in high dynamic range imaging. This framework is not limited to the acquisition of images with varying exposure values. It is also adaptable to different types of filters, e.g.: color filters. The advantages of this system are the low cost of implementation and ease of adaption to different conditions. However, the need and difficulty of the decoding process can add extra image artifacts.