Paper Details: Downloads: 428
Serial Number: P1150911674
Title: A Wavelet Based Lossless Video Compression using Adaptive Prediction and Motion Approximation
Authors: S.Jeyakumar and Dr.S.Sundaravadivelu
Abstract: There have been great interests in developing video compression techniques due to the increased multimedia applications. In this paper, a novel technique for video compression using predictive coding is introduced as a method to improve the compression efficiency. The proposed algorithm is an adaptive method that switches between prediction in spatial domain and prediction in wavelet domain by estimating the inter frame motion similarities. Noting that motion compensation in the wavelet domain can be very inefficient for high motion video sequences due to the shift-variant property of the wavelet transform, motion compensation was directly applied to a high motion activity sequence in its spatial domain. The frames that have more similarities with very few motion changes are coded using temporal prediction in its integer wavelet domain. Experimental results show that the proposed method has better compression performance and well suited for lossless compression of high quality video frames.
Keywords: Lossless compression, Motion vector, Temporal redundancy, Prediction residual, Entropy coding.
Journal/Conference: International Journal of Graphics, Vision and Image Processing
Volume: 9
Issue: 4
Submission Date: 3/7/2009 12:00:00 AM
Review Date: 3/20/2009 12:00:00 AM
Publishing Date: 5/21/2009 12:00:00 AM
Article Downloads: 428
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