Motion-compensated frame interpolation for low bit rate video coding considering accelerated motion

Peter Csillag; Lilla Boroczky; Kalman Fazekas

doi:10.1117/12.201190

17 February 1995 Motion-compensated frame interpolation for low bit rate video coding considering accelerated motion

Peter Csillag, Lilla Boroczky, Kalman Fazekas

Proceedings Volume 2451, Advanced Image and Video Communications and Storage Technologies; (1995) https://doi.org/10.1117/12.201190
Event: Advanced Networks and Services, 1995, Amsterdam, Netherlands

Abstract

In many video coding schemes, especially at low bitrates, a temporal subsampling of the input image sequence is considered. It is realized by skipping images at the transmitter, and these frames must be reconstructed at the receiver side. In order to prevent jerkiness or blurring in the moving areas, motion-compensated interpolation has to be applied. Frame interpolation algorithms usually consider two consecutively transmitted frames and assume constant velocity linear motion between these frames. The algorithm proposed in our paper assumes constant acceleration -- instead of constant speed -- that is estimated based on three consecutively transmitted images and two corresponding motion fields. This approach is much closer to the real situation than the previous methods taking into account only constant speed motion. The proposed interpolation algorithm results in smoother movement in the final interpolated video sequence. Experiments carried out using real-life image sequences confirm the applicability of the proposed method for low and very low bitrate video coding.

Citation Download Citation

Peter Csillag, Lilla Boroczky, and Kalman Fazekas "Motion-compensated frame interpolation for low bit rate video coding considering accelerated motion", Proc. SPIE 2451, Advanced Image and Video Communications and Storage Technologies, (17 February 1995); https://doi.org/10.1117/12.201190

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