Abstract

The subject of this paper is an advanced tape format designed especially for digital cinema production and post-production, ultra-high-quality shooting, and blue-and-green-screen shooting. It is also suitable for final on-air program delivery and interchange of HDTV. This paper will concentrate on the coding techniques used, the multiformat capability demanded by users, and the implementation of a format converter to allow easy integration into a multistandard world. A key development is the implementation of an MPEG-4 Studio Profile chipset With 10-bit recording at HD resolutions in either 4:2:2 (YCbCr) or full chroma bandwidth 4:4:4 (RGB) at up to 60 frames/sec, the videotape recorder (VTR) is also backwards-compatible with the two most widely used tape formats in the HD and SD world. The packing density on tape is well over 300 Mbits/sq. in., nearly five times that of the Type D6 format, and a portable version, which can record at double the net video data rate. That is 880 Mbits/sec, allowing a full 444 (RGB) recording at only 2:1 compression. This format has been proposed to SMPTE for standardization.

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