AHA: An Easily Extendible High-Resolution Camera Array

Video-based rendering demand multi-channel video captured from multi-directions and the quality of capturing video directly influences the rendering quality of the dynamic scene. In order to capture synchronously multi-channel video with resolution 1280 x 1024 and the capture rate 27 fps in real-time, designing and implementing an easily extendible high- resolution camera array (AHA). In AHA, a CMOS camera unit is designed and a binary tree routing topology is presented for propagating synchronization signals used to synchronize all of cameras. A strategy based on distributed store is presented for storing high-resolution video in real-time. The architecture of AHA ensures three characteristic of system: real-time, high-resolution and easily extendible. This paper described mainly the architecture of AHA and the key techniques related to video capturing.