单词dct的英汉翻译


dct


    离散余弦变换







单词dct的英汉对照例句


本文首先回顾了jpeg压缩标准的基本原理,随后了阐明了该压缩标准的局限性-高压缩比时重建图像的方块效应,而惟有把离散余弦变换(discretecosinetransform)改为小波变换(wavelettransform)才可能克服现有的局限性并且还可以实现许多新的功能,如渐进编解码、从有损压缩到无损压缩和感兴趣区域编码等。
This dissertation first retrospects the basic principles of jpeg compression standard and then points out the deficiency of jpeg: square effect when the cr is very high and only if dct is taken the place of by dwt this shortcoming can be overcome and some new features can be realized: such as progressive coding from lossy coding to loseless coding and roi coding.
各组分别用dct和gat测量眼压。
Intraocular pressure was measured in each group with gat and dct.
文章阐述了dct数字水印算法与dwt数字水印算法的基本概念、基本原理及具体算法实现。
This paper explained some basic concepts basic principles and applied methods about dct digital watermarking algorithm and dwt digital watermarking algorithm.
然后将mpeg压缩算法中对编解码时间影响最大的离散余弦变换与运动估计算法映射在rca上,并进行了性能评估。
Map the most time-wasting algorithms dct and full scan block match on rca and evaluate the performances.
在基于dct的数字水印算法中利用fdct变换实现dct变换,大大提高了变换速度,为了得到中频系数采用了依据心理视觉阈值制作的量化表对频率域系数进行量化。
Embedded the watermark information into intermediate frequency in the dct-based watermark algorithm.improved the dct transform speed by using fdct instead of dct.quantized the frequency coefficients by using quantized table made from mentality visual threshold.

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