Masatoshi Kakiuchi, A. Yutani, A. Inomata, K. Fujikawa, Keishi Kandori
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引用次数: 0
摘要
在利用互联网协议(IP)传输高清图像方面，已有一些研究。电视台的资料要求通过不压缩的实时传输进行无损传输。此外，高性能相机和显示器需要传输方式4K2K (3840 x 2160像素)的高清图像(高清晰度;1,920 x 1,080像素)。特别是，像天文馆这样的大屏幕投影至少需要4K2K的分辨率。然而，高清和4K2K的非压缩传输都需要1.6 Gbit/s和6.4 Gbit/s的高带宽网络，因此我们准备了SONET或广域VLAN业务等专用网络。因此我们花了很多程序和费用。
Uncompressed 4K2K and HD live transmission on global internet
There are some researches in transmission of high definition image using Internet Protocol (IP) before. Materials for TV stations require lossless transmission by uncompressed real-time transmission. Also high performance camera and display require transmission methods for 4K2K (3,840 x 2,160 pixels) image over HD (High Definition; 1,920 x 1,080 pixels). Especially, projection to huge screen such planetarium requires at least 4K2K resolution. However, uncompressed transmission of both HD and 4K2K require such high bandwidth network as 1.6 Gbit/s and 6.4 Gbit/s, then we prepared dedicated networks such SONET or wide-area VLAN service. Therefore we spent a lot of procedures and costs.
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