Performance comparison of video compression algorithms for digital cinema
CovenanteePolitecnico di Torino
Document typeMaster thesis (pre-Bologna period)
Rights accessOpen Access
In 2005 the DCI chose JPEG 2000 as the video coding standard for Digital cinema. This showed that by that time, MJPEG2000 was the standard that better fit the necessities of super high definition videos which are used in Digital Cinema. In this thesis, it is studied the MJPEG 2000 video standard and it is compared to recent standards as HEVC. MJPEG 2000 has loads of good features, as lossy and lossless compression with the same bitstream and Spatial and SNR scalability but what about its coding efficiency? Normally, the primary goal of a standard is the optimization of the coding efficiency, which is the ability to maximize the quality of the video by a given bitrate or, conversely to minimize the bitrate needed for a given PSNR or level quality. In this project, the coding efficiency of the different standards is evaluated for different sequences and resolutions by means of peak-signal-to-noise ratio. Other parameters as the complexity or delays are also studied. As nowadays professional motion picture production requires random access to each frame, standards which usually work in inter mode are also tested in intra mode. This enables a fairer comparison with MJPEG 2000, which can only work in Intra mode.
Treball acadèmics fet en col·laboració amb el Politecnico di Torino i l'Instituto Superiore Mario Boella