Accelerated computation of CGH using inter-line and temporal-redundancy data of 3-D video image

被引：0

作者：

Kim, Dong-Wook ^{[1
]}

Kwon, Min-Woo ^{[1
]}

Kim, Seung-Cheol ^{[1
]}

Kim, Eun-Soo ^{[1
]}

机构：

[1] Kwangwoon Univ, Dept Elect Eng, HoloDigilog Human Media Res Ctr, Seoul 139701, South Korea

来源：

OPTICS AND PHOTONICS FOR INFORMATION PROCESSING VI | 2012年 / 8498卷

关键词：

Computer generated hologram (CGH); 3-D imaging; Block redundancy; Novel Look-up table; LOOK-UP TABLE; HOLOGRAMS; GENERATION; PATTERNS;

D O I：

10.1117/12.930601

中图分类号：

O43 [光学];

学科分类号：

070207 ; 0803 ;

摘要：

In this paper, a new method for efficient generation of video hologram for 3-D video is proposed by combined use of redundant data of 3-D video and look-up table techniques. That is, temporal redundant data in inter-frame of 3-D video image is removed using differential pulse code modulation (DPCM) method between frames then inter-line redundant data in intra-frame of 3-D video image is also removed using DPCM algorithm between lines. Experimental results show that, in the proposed method, the average number of calculated object points for 3-D objects have been reduced by 23.3% for top-down scanning scheme, compared to the conventional TR_NLUT method. And, the average calculation time for one object point has been also reduced by 21.0%, compared to the conventional TR_NLUT. Good experimental results with 3-D test moving pictures finally confirmed the feasibility of the proposed method in fast generation of CGH patterns for 3-D videos.

引用

页数：8