What is DTS Variable Bit Rate™

When Constant Bit Rate (CBR) encoding is used for digital cinema content, the compressed size of each frame is approximately constant. The resulting image quality for CBR encoding will vary significantly from frame to frame.

When DTS Variable Bit Rate (DTS-VBR) encoding is used, the resulting image quality will be roughly constant across all frames. This constant quality can be achieved at any desired average bit rate (total package size) while conforming to all DCI requirements. DTS-VBR encoding can be performed reel by reel or over an entire feature. In addition to constant quality, DTS-VBR encoding has a significant advantage in quality over CBR encoding. For a given average bit rate, DTS-VBR encoding results in significantly higher quality for the most challenging frames, as compared to CBR encoding.

Downloads

• White Paper

  JPEG2000 for Digital Cinema - Michael W. Marcellin and Ali Bilgin, Department of Electrical and ComputerEngineering, The University of Arizona 2005.

• Journal Articles [coming soon]

  Joint Source/Channel Coding for Image Transmission with JPEG2000 over Memoryless Channels, IEEE Transactions on Image Processing - Z. Wu, A. Bilgin, M. W. Marcellin, Vol. 14, No. 8, pp. 1020-1032, August 2005.

• Books by Dr. Marcellin

  JPEG 2000: Image Compression Fundamentals, Standards and Practice – (Kluwer International Series in Engineering and Computer Science, Secs 642), by David S. Taubman and Michael W. Marcellin.