Gamma rate theory for causal rate control in source coding and video coding

Gamma rate theory for causal rate control in source coding and video coding

Dapeng Oliver Wu received Ph.D. in Electrical and Computer Engineering from Carnegie Mellon University, Pittsburgh, PA, in 2003. Since 2003, he has been on the faculty of Electrical and Computer Engineering Department at University of Florida, Gainesville, FL, where he is currently Associate Professor. His research interests are in the areas of networking, communications, video coding, image pr...

Rate Control in Video Coding

Rate control plays an important role in video coding, although it’s not a normative tool for any video coding standard. In video communications, rate control must ensure the coded bitstream can be transmitted successfully and make full use of the limited bandwidth. As a consequence, a proper rate control scheme is usually recommended by a standard during the development, e.g. TM5 for MPEG-2, TM...

4 Rate Control in Video Coding

Rate distortion theory for image and video coding

We give the rate distortion function for three image sequence coders: intra-frame, interframe and motion compensating inter-frame. The intensity function distribution is assumed to be Gaussian, and we suppose spatio-temporal separability and an isotropic model for the spatial part of the intensity function. We give quantitative results justi ng the use of the above three coding modes in an imag...

Rate Distortion Theory for Causal Video Coding: Characterization, Computation Algorithm, Comparison, and Code Design

Due to the sheer volume of data involved, video coding is an important application of lossy source coding, and has received wide industrial interest and support as evidenced by the development and success of a series of video coding standards. All MPEG-series and H-series video coding standards proposed so far are based upon a video coding paradigm called predictive video coding, where video so...