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In this paper, we propose a new scheme of layered video coding for real-time streaming and lossless archive. The proposed layered video coding provides a delay scalability which is not supported by the conventional scalable coding methods. Motion JPEG2000 is performed as a base layer coder for real-time streaming and an inter-frame coder is used as an enhancement layer coder to enhance lossless coding...
Digital Cinema is a promising application that utilizes high-speed optical networks to transfer super high definition images. The networks are primary used for distributing packet data of digital cinema contents, and are also used to support new services such as the live streaming of musicals and sports games to movie theaters. While current transfer services offer HD quality video, live streaming...
Realtime video streaming is one of the most important tool for the computer supported collaborative workspace (CSCW). CSCW requires bi-directional or many-directional video exchanging. The delay or jitter caused by network quality is easily affecting application or users of CSCW. The quality of experience (QoE) of CSCW with video streaming over IP networks depends on the quality of network. It is...
This paper introduces layered low-density generator matrix (Layered-LDGM) codes for scalable video streaming data. The layered-LDGM codes maintain the arbitrary relationship of each layer from the encoder side to the decoder side. This resulting structure supports partial decoding. Furthermore, the proposed codes create forward error correcting (FEC) packets that considers the relationship between...
We introduce an uncompressed 4K video transmission system that transmits four times higher resolution images than HD (High Definition) images using UDP/IP. The bit rate of the uncompressed 4K video stream can exceed 6 Gbit/s, which can be transmitted via a 10 Gbit/s network, however, it is difficult to switch multiple video streams from different locations without any video frame loss because of the...
This paper describes a 4K SHD (super high definition) real-time video streaming system that can encode (JPEG 2000), transmit and display live images at up to 4096 times 2160 pixel resolution and 36-bit color. The total bit rate of a 4K SHD video to be shown at 30 frames per second in 4:4:4 format is 9.5 Gbps. A JPEG 2000 parallel codec reduces this to 200-400 Mbps and allows live image distribution...
This paper develops the requirements of a high speed video stream splitting device and introduces a suitable architecture. The device can generate ten streams from a 500 Mbps 4K-digital-cinema stream without any loss. 1,000 receiving clients can be supported by connecting the devices in a multistage manner. It will be a key device in achieving a digital-cinema-based theater network and creating a...
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