Research And Implementation Of Digital Cinema Codec

Since cinema had been invented 100 years ago, filmstrip which was the carrier of the image and sound has given the global filmgoers many beautiful recollections. With advancements of the science and technology, the technology of digitalmore and more act on the domain of man's living and work. When walked intothe 21th century which have been titled digital times, digital cinema come.Filmstrip cinema has got its resplendence in the last 100 years because it was the cinema's mainstream. By all appearances, the combine of the technology of digital and cinema have been trend of the cinema industry.Digital Cinema Initiatives, LLC (DCI) was created in March 2002, has completed the final overall system requirements and specifications in July 2005,Digital Cinema System Specification Ver.1.0,it will be likely to a global standard although at present it is only a industry standard.This paper puts emphasis on the China digital cinema temporary standard,Digital Cinema System Specification Ver.1.0 and the technology of image compression,and have been designed a digital cinema codec which accord with China cinema temporary standard and be based upon JPEG2000 standard.Besides,this codec can supply the fluently encode or decode HD or SD video stream.the paper including follows:(1),Research on the JEPG2000 standard. Discuss the applications of wavelet-based coding in video compression area, as well as discrete wavelet transform theories.Especially, research on the JEPG2000's code stream and framework of package.(2),Research on the details of cinema standard,especially the compression technology,code stream,file format and packaging in the digital cinema.