Abstract
De-interlacing based on motion compensation (MC) is one of the best ways of improving the resolution of a progressive video converted from an interlaced source. However, the converted frames often suffer from serious defects like feathering artifacts in regions with inaccurate motion vectors (MVs). In such regions, an intra-fleld method that is robust to MV errors can be used to correct motion compensation artifacts (MCAs). In this letter, we propose an adaptive arbitration method to combine intra-fleld and MC methods adequately. The proposed method considers the reliability of MC results along with the MV reliability measured by the spatiotemporal consistency of MVs and displaced pixel differences. The MC reliability is determined by detecting MCAs in MC results, and then the MV reliability is adjusted according to the MC reliability. Also, adaptive-weight MC and pseudo MC methods are proposed to provide more reliable MC results and to improve the accuracy of MCA detection, respectively. Experimental results show that the proposed method provides high-quality video sequences while reducing many visible artifacts
Original language | English |
---|---|
Article number | 4812003 |
Pages (from-to) | 1214-1220 |
Number of pages | 7 |
Journal | IEEE Transactions on Circuits and Systems for Video Technology |
Volume | 19 |
Issue number | 8 |
DOIs | |
Publication status | Published - 2009 Aug |
Bibliographical note
Funding Information:Manuscript received December 20, 2007; revised September 3, 2008. First version published April 7, 2009; current version published August 14, 2009. This paper was supported in part by the IT R&D program of MKE/MCST/IITA (2008-F-031-01, Development of Computational Photography Technologies for Image and Video Contents) and by the Seoul Future Contents Convergence Cluster established by the Seoul R&BD Program. This paper was recommended by Associate Editor H. Sun.
All Science Journal Classification (ASJC) codes
- Media Technology
- Electrical and Electronic Engineering