Real-time ultra-high definition multiview glasses-free 3D display system

摘要

The design and implementation of a real-time ultra-high definition (UHD) multiview glasses-free 3D display system always suffer from the high transmission bandwidth, high memory cost, and high computational complexity. This paper presents a glasses-free 3D display system based on depth-image-based rendering (DIBR) technique by solving these problems. It can convert a V+D video (RGBD) stream in real time to a multiview representation suitable for a multiview autostereoscopic display. As V+D video format is used for the system, the transmission bandwidth is reduced. For the memory cost, we introduce an asymmetric shift-sensor camera setup to avoid external memory usage and reduce the storage requirement of multiviews. For the computational complexity, as our camera setup ensures that all the virtual views can be generated with the same DIBR algorithm, the computational complexity is reduced. In addition, we simplify the view fusion method so as to rearrange the subpixels from multiviews with lower complexity to form a single glasses-free 3D image. Moreover, we propose a hardware architecture for the system and implement it using field programmable gate array. Simulation results show that our system can support the UHD V+D videos for an 8-view glasses-free 3D display. Performance evaluation results show that the proposed system can provide reasonably good stereoscopic image quality if appropriate parameters of the system are applied.