considering the localization character of wavelet transform in spatial domain, a block-based rounding method is adopted to achieve the purpose of precise embedding.
在嵌入过程中,根据小波变换所具有的良好的空域局部化特性,采用了分块舍入技术,实现了水印信息的精确嵌入;
the convergence rate of tridia is quickened markedly with the improved rounding method proposed by the authors for the composition of the tridia.
此外,鑒于目前三对角矩阵法的组成圆整方法的不足,作者提出了改进的圆整方法,显着加快了三对角矩阵法的收敛速度。
without any other additional circuit, the algorithm achieved a pipelined architecture of rounding method by adjusting the quantization level, the quantization error ranged from -1/2lsb to 1/2lsb.
该算法在不附加任何额外电路的情况下,通过对模拟量化比较电平的调整,实现了舍入式流水线结构,其量化误差范围在-1/2lsb与1/2lsb之间。
a double-precision floating-point multiplier with fast rounding method is presented in the paper.
文章设计了一个基于快速舍入的双精度浮点乘法器。