3-D motion estimation of rigid objects for video coding applications using an improved iterative version of the E-matrix method
Date
1998-02Source Title
IEEE Signal Processing Society
Print ISSN
1070-9908
Electronic ISSN
1558-2361
Publisher
Institute of Electrical and Electronics Engineers
Volume
5
Issue
2
Pages
36 - 38
Language
English
Type
ArticleItem Usage Stats
224
views
views
182
downloads
downloads
Abstract
As an alternative to current two-dimensional (2-D) motion models, a robust three-dimensional (3-D) motion estimation method is proposed to be utilized in object-based video coding applications. Since the popular E-matrix method is well known for its susceptibility to input errors, a performance indicator, which tests the validity of the estimated 3-D motion parameters both explicitly and implicitly, is defined. This indicator is utilized within the RANSAC method to obtain a robust set of 2-D motion correspondences which leads to better 3-D motion parameters for each object. The experimental results support the superiority of the proposed method over direct application of the E-matrix method.
Keywords
Object-based video codingE-matrix method
Object-based motion analysis
Ransac
3-D motion and structure estimation