查询词典 compression

After analyze few existing compression algorithm for high-resolution remote sensing, we provides a new compression algorithm based on Integer to integer wavelet transform, and introductive the design scheme for it.

本文在分析了几种现有的对于高分辨率遥感影像的压缩算法后，提出了一种新的基于整数小波变换的压缩算法，并相应的介绍了设计实现方案。

The experiment of skarn, quartz diorite, marble, siltstone, iron pyrites and serpentinite was first carried out under uniaxial compression load, and at the mean time the AE signal at the process of compression was monitored by AE instrument as well.

文中首先对矽卡岩、石英闪长岩、大理岩、粉砂岩、含铜黄铁矿和蛇纹岩进行单轴压缩试验，在压缩试验的同时，使用声发射仪器实时记录岩石破坏过程中产生的声发射信号。

In this technique, K-L transformation was used to remove spectral statistic correlation on the spectral direction. Then SNMAW prediction tree technique was used to remove spatial correlation and spectral structure correlation. With the limit of a certain max error, this technique can get a higher compression ratio. 6. We proposed a lossy compression technique based on wavelet transformation with sharing significance map.

该方法在谱维方向进行K-L变换，有效地去除谱间统计冗余，而变换后的图象仍存在空间相关性和谱间结构相关性，再利用改进的预测树方法方法进行无损压缩，在最大误差很小的限制下，得到较高的压缩效率。

Through the analysis of characteristics in curve of deformation tests on the four kinds of rockmasses such as claystone, siltstone, feldspar-quartz sandstone and lithic sandstone underlain the dam foundation of Tingzikou Hydropower Station, it is thought that: the test deformation of thick lithic sandstone is mainly caused by slippage deformation of rock crystal lattice ; the test deformation of feldspar-quartz sandstone is mainly from small crevices in rock, compressive deformation of rock small holes and slippage deformation of rock crystal lattice; and the test deformation of thin layer claystone in which horizontal layer is developed and siltstone is mainly from compression deformation in interlayer, small crevices in rock, compression deformation of rock small holes and slippage deformation of rock crystal lattice.

通过对亭子口水利枢纽工程坝基下卧的黏土岩、粉砂岩、长石石英砂岩和岩屑砂岩等 4 种主要岩性的岩体变形试验曲线特征进行分析，认为：厚层岩屑砂岩的试验变形量主要来自于岩石晶格错动变形，长石石英砂岩的试验变形量主要为岩石内孔隙和空隙变形以及岩石晶格错动产生的变形，而层理较发育的薄层黏土岩和粉砂岩的试验变形量主要由层间压缩变形、岩石内孔隙和空隙变形以及岩石晶格错动产生的变形共同组成。

Finally, the physical index and compression index of silty soil from Yangtze Basf project are divided to three groups according to depth, then characteristic statistic are calculated to physical and compression index of three groups and mechanical index of all depths. After that, normal distribution 、 logarithmic normal distribution and extreme I distribution are fitted for physical and mechanical indexes. And Goodness-of-fit testing with X~2 method is done subsequently.

最后，将扬子巴斯夫工程粉质粘土的物理指标和压缩性指标按照埋深分为三组，计算了不同深度上粉质粘土的物理指标和压缩性指标以及所有深度上抗剪强度指标的特征统计量；然后用正态分布、对数正态分布和极值I型分布对各指标进行概率模型拟合并用x~2法对拟合优度进行了检验。

Comparing with lossy image compression, the lossless image compression is more difficult and its development is slower.

图像的无损压缩相对有损压缩来说更加困难，取得的进展也更小。

The algorithm of SAR image's lossless compression and low loss compression is discussed.

对SAR图像的统计特性进行了研究，据此对SAR图像的无失真压缩、低失真压缩进行了理论研究。

The methods of image compression could be summed up as the lossy and loseless compression.

图像压缩的方法很多，但一般可分为有损压缩和无损压缩两大类。

Comparing with lossy image compression, the lossless image compression is more difficult and itsdevelopment is slower.

图像的无损压缩相对有损压缩来说更加困难，取得的进展也更小。

Lossy compression on the other hand allows some loss, but has the potential for much higher compression rates.

损失性图像压缩则允许某些图像信息丢失，但在压缩比上有着更大的潜力。

Alternatively, the con- trollers can use the synchronous rectifier itself or loss- less inductor current-sensing methods to provide overload protection with lower power dissipation.

另外，康威特罗勒斯可以使用同步整流器本身或亏损减少电感电流检测方法，以提供低功耗过载保护。

Mr. Dauber's other Schatz hangs in his home movie studio.

多伯把沙兹的另一件作品挂在家里的电影室。