Introduction to data compression (2nd ed.)
Introduction to data compression (2nd ed.)
Digital Coding of Waveforms: Principles and Applications to Speech and Video
Digital Coding of Waveforms: Principles and Applications to Speech and Video
An efficient motion vector coding scheme based on minimum bitrate prediction
IEEE Transactions on Image Processing
The LOCO-I lossless image compression algorithm: principles and standardization into JPEG-LS
IEEE Transactions on Image Processing
Reversible watermarking via histogram shifting and least square optimization
Proceedings of the 12th ACM workshop on Multimedia and security
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In this paper, we introduce an adaptive motion vector prediction algorithm to improve the performance of a video encoder. The block-based motion vector can be characterized by the local statistics so that the coefficients of LS-based linear motion predictor can be optimized. However, it requires very expensive computational cost, which is major bottleneck in real-time implementation. In order to resolve the problem, we propose the LS-based motion prediction algorithm using spatially varying motion-directed property, so that the coefficients of the motion predictor can be adaptively controlled, resulting in the reduction of computational cost as well as the prediction error. Experimental results show the capability of the proposed algorithm.