18-08-2012, 12:10 PM
DIGITAL CINEMA
DIGITAL CINEMA.docx (Size: 10.63 KB / Downloads: 43)
Digital Cinema describes the use of movies with a digital data representation in best quality. Traditionally movies are shot on film and projected with film. In the future this will be done with digital cameras and digital projectors. Because of the huge amount of data within this application area data compression will be necessary. In contrast to Electronic Cinema, which uses the digitization of the film for new commercialization pathes, Digital Cinema replaces only the film chain from the acquisition to the film theatres. Therefore Digital Cinema must achieve and surpass today's best film quality. The parameters for the digital representation of the movie have to be much more extensive than in standard videos.
Previous compression standards have different limits for the use in Digital Cinema. This can be the maximum resolution, the compression possibilities (only lossy), the sampling type, the colorspace or the bit depth. Motion JPEG2000 is an excellent compression standard for the use in Digital Cinema, because it delivers enough headroom in the description of digital movie data and has outstanding features, which can be used. Some features of Motion JPEG2000 are intraframe coding for a simple editing access, lossless compression capabilities, metadata insertion, scalability in resolution and quality and so on. All features of the still Image JPEG2000 Standard 15444 - Part1 can also be used.
Requirements in data compression for Digital Cinema include high dynamic range, different color spaces, highest image resolutions, best compression quality including lossless compression, and so on.
DIGITAL CINEMA.docx (Size: 10.63 KB / Downloads: 43)
Digital Cinema describes the use of movies with a digital data representation in best quality. Traditionally movies are shot on film and projected with film. In the future this will be done with digital cameras and digital projectors. Because of the huge amount of data within this application area data compression will be necessary. In contrast to Electronic Cinema, which uses the digitization of the film for new commercialization pathes, Digital Cinema replaces only the film chain from the acquisition to the film theatres. Therefore Digital Cinema must achieve and surpass today's best film quality. The parameters for the digital representation of the movie have to be much more extensive than in standard videos.
Previous compression standards have different limits for the use in Digital Cinema. This can be the maximum resolution, the compression possibilities (only lossy), the sampling type, the colorspace or the bit depth. Motion JPEG2000 is an excellent compression standard for the use in Digital Cinema, because it delivers enough headroom in the description of digital movie data and has outstanding features, which can be used. Some features of Motion JPEG2000 are intraframe coding for a simple editing access, lossless compression capabilities, metadata insertion, scalability in resolution and quality and so on. All features of the still Image JPEG2000 Standard 15444 - Part1 can also be used.
Requirements in data compression for Digital Cinema include high dynamic range, different color spaces, highest image resolutions, best compression quality including lossless compression, and so on.