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    • 6. 发明公开
    • 주성분 분석 기법에 기반한 3차원 시퀀스 데이터 부호화장치 및 방법
    • 基于原理分析的压缩3D MESH序列数据的装置和方法
    • KR1020070002365A
    • 2007-01-05
    • KR1020050057863
    • 2005-06-30
    • 재단법인서울대학교산학협력재단
    • 허준희양정휴이상욱
    • G06T17/00G06T9/00
    • H04N19/124G05B2219/40326H03M7/3022H04N19/19
    • An apparatus and a method for encoding 3-dimensional sequence data based on principal component analysis algorithm are provided to efficiently compress the 3-dimensional sequence data by differently determining quantization steps according to the singular value of each principle component and defining the number of principal components. 3-dimensional sequence data are inputted to a singular value decomposer(110) and divided into a singular value, a right side principal component and a left side principal component by SVD(Singular Value Decomposition). A quantization step determiner(120) determines the number of quantization steps and principal components by using the decomposed singular value. The information on the number of quantization steps and principal components is transmitted to a quantization unit(130). An arithmetic encoder(140) encodes the quantized data.
    • 提供了一种基于主成分分析算法对3维序列数据进行编码的装置和方法,以通过根据每个主成分的奇异值不同地确定量化步长来有效地压缩3维序列数据,并定义主分量数 。 将三维序列数据输入到奇异值分解器(110),并通过SVD(奇异值分解)被划分成奇异值,右侧主分量和左侧主分量。 量化步长确定器(120)通过使用分解的奇异值来确定量化步长和主分量的数量。 关于量化步长和主成分的数量的信息被发送到量化单元(130)。 算术编码器(140)对量化的数据进行编码。