- 更多网络例句与二重矢量相关的网络例句 [注:此内容来源于网络,仅供参考]
-
Based on the traits of dyadic wavelet decomposition of signal and that of the distribution of wavelet image coefficients, PLVQ and ZR are conjoined by making use of D\-4 lattice. Firstly, Pyramidal lattice vector quantization is adopted to quantize wavelet image coefficients. Nonzero lattice vectors and zero lattice vectors are formed. Secondly, nonzero lattice vectors are dealt with by adopting complex entropy coding. Finally, in order to fix on the position of nonzero lattice vector effectively, that is, to deal with zero lattice vectors effectively, the concept of significant map is introduced into. The significant map is scanned two times from down to up and from up to down.
根据信号的二进小波分解特点和小波图象系数的分布特点,利用D\-4格将PLVQ和零树结合起来,提出了一种基于零树和金字塔格型矢量量化的小波图象编码方法,该方法首先采用金字塔格型矢量方法来量化小波图象系数,以得到非零格点和零格点;然后采用复合熵编码来处理非零格点;最后为了有效确定非零格点的位置,也就是为了有效地处理零格点,又引进了重要图的概念。
-
Data pre-processing technologies such as singular points elimination, registration and radius compensation are studied. Base on chord high difference algorithm, a new one called chord high difference-ratio algorithm is proposed to improve veracity and robusticity of singular points elimination. Then, a registration algorithm based on local surface reconstruction is proposed, which avoids infaust influence coming from single reference point error.
在弦高差法的基础上,提出了全新的弦高差—比法,提高了异常点剔除的准确性和柔韧性;提出了一种基于局部图形重构的重定位方法,该方法通过对特征球的最小二乘拟合,消除了单一参考点的精度对重定位的影响;在此基础上对重定位的误差进行了详细的分析,给出了精确的误差值,从数学的角度保证了重定位的精度;在三角网格法的基础上提出了基于Delaunay三角剖分的半径补偿新方法,有效改善了补偿矢量的计算效率和准确性。
- 更多网络解释与二重矢量相关的网络解释 [注:此内容来源于网络,仅供参考]
-
bivector:二重矢量 二重向量 平面量
bivariate | 二变量的,双变的 | bivector | 二重矢量 二重向量 平面量 | bivectorial coordinates | 双向量坐标