4.11.1.1.1.1.1.1.1JCTVC-H0041 CE11: Summary report of Core Experiment on coefficient scanning and coding [V. Sze, T. Nguyen, K. Panusopone, Y. Piao, J. Sole (CE coordinators)]
Various methods have been proposed for coding the transform coefficients of the residual signal to reduce complexity and/or improve coding efficiency. This core experiment evaluates the coding efficiency and complexity impact of:
Signalling method related to transform coefficients (e.g. data hiding)
The objectives of this CE include:
Investigation of the impact of context selection and signalling schemes for transform coefficient coding on the coding efficiency and complexity
Coding efficiency and complexity measurement of transform coefficient scanning order methods
Complexity measures are described in the CE summary report. The coding efficiency impact of the proposed changes is shown in the table below for various test cases.