著者
Hiroaki Yano Tomohiro Yendo
出版者
The Institute of Image Information and Television Engineers
雑誌
ITE Transactions on Media Technology and Applications (ISSN:21867364)
巻号頁・発行日
vol.11, no.2, pp.43-48, 2023 (Released:2023-04-01)
参考文献数
16

The multi-projection-based light-field display is a family of glasses-free three-dimensional(3-D) displays that is easy to scale up. We propose a method for creating a light-field display using a projector and kaleidoscope-like optics in this paper. Using optical simulations, we investigate how the kaleidoscope can adjust the display parameters. In addition, for a prototype system, we developed a semi-automatic calibration method. It has been established that a glasses-free 3-D display is possible with a small number of readily available parts and quite a simple structure.
著者
Zhengqiang Tang Shintaro Arai Tomohiro Yendo Di He Takaya Yamazato
出版者
The Institute of Electronics, Information and Communication Engineers
雑誌
IEICE Communications Express (ISSN:21870136)
巻号頁・発行日
pp.2020XBL0058, (Released:2020-05-18)
被引用文献数
6

In this study, the sequential maximum likelihood decoding (S-MLD) for image sensor based visible light communication, referred to as image sensor communication, is proposed. The conventional system cannot correctly decode degraded captured images. To overcome this problem, S-MLD partitions the LED area on the image into two segments and sequentially creates pseudo-captured images, which imitate all possible LED blinking patterns. This approach is based on MLD for each segment. Moreover, reliability determination is incorporated to improve communication quality. We performed computer simulations and confirmed that S-MLD exhibits superior decoding performance and approximately 90% computational cost reduction compared to the previous MLD.