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논문 기본 정보

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한국통신학회 한국통신학회논문지 한국통신학회논문지 제24권 5호
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    초록·키워드

    In this paper, we describe an efficient compression technique for affine motion model. Because the estimated parameters of affine motion model are real-valued, we have to quantize them before the transmission. Also, there are poor correlation and similarity between motion parameters of neighboring objects, and each parameters has different statistical properties and dynamic range. To overcome these problems, a new method is proposed in this paper. The core of this scheme includes the calculation of real translation motion and the line transformation of scaling and rotation motions. By the calculation of real tranlation, translation terms which have good statistical properties and strong temporal correlation are generlated. They are differentially encoded in the temporal direction. By the line transformation, the scaling and the rotation motions are converted into 2D vector elements which have a good correlation. Then, They are encoded using vector quantization. Simulation results show that our proposed scheme provides better performance than the direct quantization method.

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      UCI(KEPA) : I410-ECN-0101-2009-567-012232454