I. Introduction
As superior imaging sensors (ISs) and faster smartphone processors are becoming commonplace, the latest smartphones are as powerful as professional digital single-lens reflex (DSLR) cameras on the photography side. In Dec. 2017, the top 3 ranked mobiles from DxOMark are Google Pixel 2, Apple iPhone X, and Huawei Mate 10 Pro with an overall score of 98, 97, and 97, respectively [1]. According their product specifications, each of these devices are capable of 720p or 1080p video capture at up to 240 frames per second (fps). Such an ability to capture high speed video streams by a smartphone paves the way for future optical camera communication (OCC) technology, mostly for low speed applications such as vehicular communications and indoor positioning [2].