Spatiotemporal Deinterlacing Using a Maximum a Posteriori Estimator Based on Multiple-Field Registration

Title
Spatiotemporal Deinterlacing Using a Maximum a Posteriori Estimator Based on Multiple-Field Registration
Authors
송병철
Keywords
deinterlacing; maximum a posteriori estimator; multiple-field registration
Issue Date
2013
Publisher
JOURNAL OF ELECTRONIC IMAGING
Series/Report no.
JOURNAL OF ELECTRONIC IMAGING ; Vol22 no.4 Startpage 043038 Endpage 043038
Abstract
This paper proposes an accurate deinterlacing algorithm using a maximum a posteriori (MAP) estimator. First, we produce accurate motion vector fields between the current field and adjacent fields by employing an advanced motion compensation scheme that is suitable for an interlaced format. Next, the progressive frame corresponding to the current field is found via the MAP estimator based on the derived motion vector fields. Here, in order to obtain a stable solution, well-known bilateral total variation?based regularization is applied. Then, at a specific mode decision step, it is decided whether the result from the aforementioned temporal deinterlacing is acceptable or not. Finally, if the temporal deinterlacing is determined to be inappropriate by the mode decision, a typical spatial deinterlacing is applied instead of the MAP estimator-based temporal deinterlacing. Experimental results show that the proposed algorithm provides at maximum 2 dB higher PSNR than a cutting-edge deinterlacing algorithm, while providing better visual quality than the latter.
URI
http://dspace.inha.ac.kr/handle/10505/34307
ISSN
1017-9909
Appears in Collections:
College of Engineering(공과대학) > Electronic Engineering (전자공학) > Local Access Journals, Paper, Reports (전자공학 논문, 보고서)

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