Load-Balancing Multi-LCD Light Field Display
Cao X; Geng Z; Zhang M(张梅); Zhang Z; Cao X(曹煊)
2015
会议名称IS&T SPIE
会议录名称Proc. SPIE 9391, Stereoscopic Displays and Applications XXVI
会议日期2015.02.09
会议地点San Francisco, USA
摘要
We propose a load-balancing multi-LCD light field display technology. The multiple LCD panels operate as a spatial light modulator. Each light ray is the combination of pixels located in multiple LCD panels. The challenging problem is how to decompose the light field into limited layer images and display the light field compressively. Each pixel, as a controllable unit, is in spatial-multiplexing which means one pixel needs to be responsible to modulate multiple target light rays at the same time. We analyze the load imposed on each pixel by casting the light field decomposition as an over-determined equation problem. We found each pixel works in the state of overload and single pixel couldn’t give consideration to all target light rays. In order to reduce the load on pixels and improve display fidelity, we develop a multi-layer and multi-zone joint optimization strategy. The target light field is divided into multiple subzones and each subzone is displayed by multiple LCD panels combining with a dynamic directional backlight. By resolving the target light field, our display system further explores the multi-LCD’s capability of displaying light field and higher quality of light field display is achieved. We test our load-balancing decomposition algorithm based on different scene. The parallax, occlusion and blur of out-of-focus are restored successfully. And a three-layer prototype is constructed to demonstrate that correct light field is displayed in indoor lighting environment.
关键词Light Field Dispay Multi-lcd Light Field Decomposition Joint Optimization Nonnegative Tensor Factorization Dynamic Directional Backlight
文献类型会议论文
条目标识符http://ir.ia.ac.cn/handle/173211/12360
专题复杂系统管理与控制国家重点实验室_先进控制与自动化
通讯作者Cao X(曹煊)
作者单位State Key Laboratory of Management and Control for Complex Systems, Institute of Automation,
推荐引用方式
GB/T 7714
Cao X,Geng Z,Zhang M,et al. Load-Balancing Multi-LCD Light Field Display[C],2015.
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