We study the performance associated with model-based video coding schemes using global motion models for motion compensation. Reference frames and compensated frame di erences are coded using a method similar to MPEG, employing transform coding, quantization, and Hu man coding. The traditional block matching motion compensation approach is compared to global motion compensation approaches derived from 3D motion stabilization methods, using similarity and pro jective transformations. 3D model-based motion compensation is achieved by derotating the input sequence. This yields a pro jective transformation, which under certain circumstances, is well approximated by a similarity transformation. Experiments are carried out to analyze the performance of each scheme for comparable coding rates.
BibTeX
@techreport{Morimoto:Tech1996,
author = {Carlos H. Morimoto and Philippe Burlina and Rama Chellappa and Yi-Sheng Yao},
title = {Video Coding by Model-Based Stabilization},
institution = {Maryland Univ. College Park Center for Automation Research},
year = {1996}
}