Processor design for portable systems
Journal of VLSI Signal Processing Systems - Special issue on technologies for wireless computing
Algorithms, Complexity Analysis and VLSI Architectures for MPEG-4 Motion Estimation
Algorithms, Complexity Analysis and VLSI Architectures for MPEG-4 Motion Estimation
A new diamond search algorithm for fast block-matching motion estimation
IEEE Transactions on Image Processing
A novel four-step search algorithm for fast block motion estimation
IEEE Transactions on Circuits and Systems for Video Technology
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This paper proposes a new multiparameter method for analysis and selection of motion estimation algorithms for video compression. We present motion estimation algorithms, results of computer simulations and illustrate the analysis with tables, PSNR and performance plots. Numerous algorithms and tests for analysis of algorithm performance for video compression have recently been suggested, which has resulted in a need for effective evaluation methods. A highly qualified expert is also needed to evaluate the test results. The more input parameters used the more complex and subjective the evaluation will be. Our multiparameter method for algorithm analysis and selection eliminates subjectivity and provides a qualitative and quantitative evaluation of the tested algorithms for any number of algorithms and parameters. We propose two new methods of evaluation: (1) a quality method--a graphic method using the Pareto approach, and (2) a quantity method which obtains an integrated parameter composed of numerous evaluation parameters. In addition, we evaluate various motion estimation algorithms accordingly to two different implementation strategies: (a) using a software video encoder that depends on available processing resources using a computational complexity---rate---distortion (C---R---D) evaluation framework and (b) using a power-limited video encoder implemented on mobile or handheld computing platform by using energy---rate---distortion (E---R---D) behavior.