論文

査読有り 国際誌
2019年4月15日

Compression scheme of electro-holography based on the vector quantization of point light sources.

Optics express
  • Takashi Nishitsuji
  • ,
  • Yudai Hosono
  • ,
  • Takashi Kakue
  • ,
  • Tomoyoshi Shimobaba
  • ,
  • Tomoyoshi Ito
  • ,
  • Takuya Asaka

27
8
開始ページ
11594
終了ページ
11607
記述言語
英語
掲載種別
研究論文(学術雑誌)
DOI
10.1364/OE.27.011594

Video holography has attracted attention after its invention in 1947; however, the enormous amount of data involved in recording and transmitting three-dimensional (3D) images remains a serious issue in electro-holography. Majority of the studies that have investigated holography transmission target the system that transmits the 3D images by compressing the holograms created on the distributor side using various compression techniques such as the conventional video compression techniques. However, the importance of the information in frequency space and characteristics, such as the correlation between adjacent pixels and frames, is different in natural images and holograms; therefore, these approaches are not always effective. In this study, we propose an effective electro-holography compression scheme based on the vector quantization of point light sources (PLSs). Instead of directly compressing a hologram, our method compresses and transmits PLSs from the distributor side and generates a hologram on the receiver side. To reduce the computational load that is required for creating a computer-generated hologram (CGH) on the receiver side, a fast CGH calculation technique has been developed for the vector-quantized PLS data based on the lookup tables (LUTs). This reduces the data rate by 76% when compared to that observed in case of uncompressed CGH transmission with 2K resolution and results in a calculation speed that is 1.34 times faster than that obtained using the conventional LUT method.

リンク情報
DOI
https://doi.org/10.1364/OE.27.011594
PubMed
https://www.ncbi.nlm.nih.gov/pubmed/31053002
ID情報
  • DOI : 10.1364/OE.27.011594
  • PubMed ID : 31053002

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