Share Email Print

Journal of Electronic Imaging

Global motion-compensated preprocessing algorithm for block-based frame-rate conversion
Author(s): Young Duk Kim; Joonyoung Chang; Moon Gi Kang
Format Member Price Non-Member Price
PDF $20.00 $25.00
cover GOOD NEWS! Your organization subscribes to the SPIE Digital Library. You may be able to download this paper for free. Check Access

Paper Abstract

We propose a global motion (GM) compensated preprocessing algorithm for block-based frame rate conversion (FRC). The proposed method estimates camera motions such as zooms or rotations between two input frames, and accordingly, produces nontranslational GM-free pictures by performing GM compensation with respect to the temporal location where the FRC method reconstructs an intermediate frame. To reduce the computational load, the proposed method first subsamples input images, and then block-wise motion estimation (ME) is performed. With the ME results, the proposed method detects scene changes and nontranslational GMs. This allows us to determine whether to proceed with the GM estimation and compensation processes. The geometric motion model is adopted to describe camera motions with four parameters, and these values are iteratively found on a motion vector (MV) field. Experimental results show that the proposed algorithm achieves significant performance improvements of subsequent FRC methods.

Paper Details

Date Published: 1 April 2010
PDF: 10 pages
J. Electron. Imag. 19(2) 023001 doi: 10.1117/1.3373514
Published in: Journal of Electronic Imaging Volume 19, Issue 2
Show Author Affiliations
Young Duk Kim, SAMSUNG Electronics Co., Ltd. (Korea, Republic of)
Joonyoung Chang, Yonsei Univ. (Korea, Republic of)
Moon Gi Kang, Yonsei Univ. (Korea, Republic of)

© SPIE. Terms of Use
Back to Top