波压缩的英文
wave compression
例句与用法
更多例句： 上一页 下一页- Spiht algorithm , evolving from ezw , is so far one of the most influential wavelet compression algorithms , which encodes wavelet coefficients according to their energy or significance through a unique pass
由ezw算法演变而来的spiht算法是目前为止影响最大的小波压缩算法之一，它通过独特的扫描方式，将小波系数按照能量大小或者重要性程度编码输出。 - Considering the feasibility of current semiconductor technology and product cost , after the comparison among some software and hardware implementation plans , a corresponding plan of multi - channel real - time video s urveillant system is put forth
综合考虑当前的半导体发展水平以及相应的实现成本，通过对系统的各种软件和硬件实现方案的比较，最终选用了asic实现实时监控和以小波压缩芯片作为本系统的核心处理器。 - Through anatomizing ezw coding algorithm and taking the effects of human being ’ s vision characteristics on quality of reconstituting image . a improved zeretrees algorithm are put forward . at last a new image compression encoding algorithm based on wavelet transform and vector quantization is put forward . the experiment show , in very low bit rate , using the proposed algorithm , the reconstructed image is superior to that of ezw in both of perception and psnr
最后,在小波树的基础上,通过对矢量量化的研究,本文提出了一种基于四叉树结构新的小波树矢量量化压缩编码算法,实验证明,在较高压缩比的情况下,使用此方法得到的重构图象质量(视觉效果和峰值信噪比)比通常的小波压缩算法有了较大的提高。 - Based on lifting scheme and cohen - daubechies - feauveau theorem constructing biorthogonal wavelets , we construct a new symmetric biorthogonal 9 7 tap wavelet ( ls97 ) . the compression performance of the ls97 wavelet is almost the same as that of cdf 9 7 wavelet , which is adopted by jpeg2000 . furthermore , the inverse of ls97 wavelet can be replaced by cdf 9 7 wavelet in image compression , and vice versa
以构造双正交小波的cohen - daubechies ? feauveau定理为基础，利用提升方法设计了一组对称双正交9 / 7小波滤波器，它与jpeg2000中采用的cdf9 / 7小波压缩性能几乎相同，并且它们两者在图像压缩中可以互相做正变换与逆变换。 - And other ions in oscillographic chronopotentiometric determination . compared with rpnn and wnn , combination of the wavelet transform and neural network for ocpd has higher prediction accuracy and less convergence epoch . this can be explained from two aspects . firstly , the network operation rate has been greatly enhanced because the optimal detail signal obtained after the wavelet transform not only is the characteristic information in original signal , but also has less number of data points than that of original signal . secondly , the higher prediction accuracy can be obtained because detail signal used as network input contains lower noise . as a result , the potential application of cwtnn for ocpd and other electroanalytical methods will be very excellent
这一方面是因为使用经小波压缩后的信号作为神经网络的输入，压缩后的信号不仅提取了原信号中的特征信息，而且使网络输入的数据点数大幅度下降，大大提高了网络的运算速度。另一方面，由于选用了较高次分解所得的高频部分作为网络输入，从而即使在原始信号中含有较高的嗓音时也能获得较高的预测准确度。因此，将具有压缩功能的小波变换与神经网络相结合的方法必将得到广泛的应用。
