Accelerated Generation of a Pinhole-Type Holographic Stereogram Based on Human Eye Characteristics in Near-Eye Displays
Xu Zhang,
Tao Chen,
Yujian Pang,
Kefeng Tu,
Piao Dai,
Guoqiang Lv,
Zi Wang,
Qibin Feng
Affiliations
Xu Zhang
School of Instrumentation and Opto-Electronics Engineering, Hefei University of Technology, Hefei 230009, China
Tao Chen
School of Instrumentation and Opto-Electronics Engineering, Hefei University of Technology, Hefei 230009, China
Yujian Pang
School of Instrumentation and Opto-Electronics Engineering, Hefei University of Technology, Hefei 230009, China
Kefeng Tu
School of Instrumentation and Opto-Electronics Engineering, Hefei University of Technology, Hefei 230009, China
Piao Dai
School of Instrumentation and Opto-Electronics Engineering, Hefei University of Technology, Hefei 230009, China
Guoqiang Lv
School of Instrumentation and Opto-Electronics Engineering, Hefei University of Technology, Hefei 230009, China
Zi Wang
National Engineering Laboratory of Special Display Technology, National Key Laboratory of Advanced Display Technology, Academy of Photoelectric Technology, Hefei University of Technology, Hefei 230009, China
Qibin Feng
National Engineering Laboratory of Special Display Technology, National Key Laboratory of Advanced Display Technology, Academy of Photoelectric Technology, Hefei University of Technology, Hefei 230009, China
In near-eye displays (NEDs), issues such as weight, heat, and power consumption mean that the rendering and computing power is usually insufficient. Due to this limitation, algorithms need to be further improved for the rapid generation of holograms. In this paper, we propose two methods based on the characteristics of the human eye in NEDs to accelerate the generation of the pinhole-type holographic stereogram (HS). In the first method, we consider the relatively fixed position of the human eye in NEDs. The number of visible pixels from each elemental image is very small due to the limited pupil size of an observing eye, and the calculated amount can be dramatically reduced. In the second method, the foveated region rendering method is adopted to further enhance the calculation speed. When the two methods are adopted at the same time, the calculation speed can be increased dozens of times. Simulations demonstrate that the proposed method can obviously enhance the generation speed of a pinhole-type HS.
