Previous [1] [2] [3] [4] [5] [6] [7] [8] [9] [10]

Journal of Inforamtion Science and Engineering, Vol.17 No.5, pp.763-777 (September 2001)

A New Approach to Video Format Conversion Using
Bidirectional Motion Estimation and
Hybrid Error Concealment*

Dang-Jiang Wang and Jin-Jang Leou
Department of Computer Science and Information Engineering
National Chung Cheng University
Chiayi, 621 Taiwan

To display different image/video sources on different display systems, video format conversion techniques are needed. In this study, a new approach to video format conversion using bidirectional motion estimation and hybrid error concealment is proposed. In the proposed approach, both the spatial information and the temporal information within an image sequence are employed. In particular, the temporal information obtained by means of bidirectional motion estimation is used in both interlaced-to-progressive conversion and frame rate conversion. A hybrid error concealment method developed by Chu and Leou [19] is modified to interpolate the remaining (unfilled) pixels within each intermediate frame. Based on the simulation results obtained in this study, the performance of the proposed approach is shown through comparison to be superior to (more robust than) that of several existing approaches.

Keywords: video format conversion, interlaced-to-progressive conversion, frame rate conversion, bidirectional motion estimation, hybrid error concealment

Full Text () Retrieve PDF document (200109_04.pdf)

Received April 10, 2000; revised October 4, 2000; accepted November 17, 2000.
Communicated by Mark H. Y. Liao.
* This work was supported in part by National Science Council, Republic of China under Grant NSC 88-2218-E-194-010.