NDLI: Motion-Compensated Frame Rate Up-Conversion—Part II: New Algorithms for Frame Interpolation

Content Provider	IEEE Xplore Digital Library
Author	Demin Wang Vincent, A. Blanchfield, P. Klepko, R.
Copyright Year	1963
Abstract	Motion-compensated frame rate up-conversion (MC-FRUC) consists of two key elements: motion estimation and motion-compensated frame interpolation. The motion estimation algorithm presented in , which is used in the MC-FRUC method proposed in this paper, provides unidirectional motion trajectories. The advantage of this motion estimation algorithm, besides its accuracy, is that it provides information on occlusions. However, motion compensation along unidirectional motion trajectories yields overlaps, holes, and blocking artifacts. To solve these problems, this paper presents two new algorithms for unidirectional motion-compensated frame interpolation: irregular-grid expanded-block weighted motion compensation (IEWMC) and block-wise directional hole interpolation (BDHI). The IEWMC is used to reduce the blocking artifacts and solve the problem of overlapping blocks. The BDHI preserves local texture and edges while filling holes. Experimental results show that the IEWMC outperforms conventional motion compensation, and the BDHI is better than the repeated median filter that is often used to fill holes. The performance of the proposed MC-FRUC, that uses the two new algorithms and the unidirectional motion estimation algorithm, is evaluated against three existing MC-FRUC techniques: a typical bi-directional algorithm, an object-based algorithm, and a commercial plug-in product. Experimental results show that the quality of the pictures interpolated using the proposed MC-FRUC method is much higher than those interpolated using the three existing MC-FRUC techniques.
Sponsorship	IEEE Broadcast Technology Society
Starting Page	142
Ending Page	149
Page Count	8
File Size	697884
File Format	PDF
ISSN	00189316
Volume Number	56
Issue Number	2
Language	English
Publisher	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Publisher Date	2010-06-01
Publisher Place	U.S.A.
Access Restriction	One Nation One Subscription (ONOS)
Rights Holder	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Subject Keyword	Interpolation Motion estimation Motion compensation Image converters Bit rate Filling Filters Bidirectional control Filtering video processing Frame interpolation frame rate conversion MAP estimation motion estimation
Content Type	Text
Resource Type	Article
Subject	Electrical and Electronic Engineering Media Technology

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