查询词典 image compression

With MagicISO, you can handle DVD image up to 10GB; make cd image files from CD/DVD-ROM; also can burn ISO files and another CD/DVD image files (BIN, IMG, CIF, NRG, BWI,VCD and so on) to CD-R/RW,DVD-R/RW, DVD+R/RW;burn CD image files in ISO9660, Joliet, and UDF format; edit properties of CD/DVD image files; it has the ability to correct volume serial number after editing original CD/DVD image file.can search files or directories with wildcard characters in CD/DVD image file; can extract, rename, delete, open the found files; improved CD/DVD image file detecting engine; supports burning CD on USB connection CD-R/RW driver; fixed some minor error.

与magiciso ，您可以处理DVD影像高达10 GB的；作出的CD影像文件从CD / DVD - ROM光碟，也可以刻录的ISO文件和另一张CD / DVD的图像文件（斌， IMG的到岸价格， nrg ，布雷顿森林机构， VCD和等，）的CD-R/RW ， dvd-r/rw ，在DVD + R / RW光碟；烧伤的CD影像文件， iso9660 ， Joliet的，和的UDF格式；编辑属性的CD / DVD的图像文件，它有能力正确的卷序列若干修改完成后，原来的CD / DVD形象file.can搜索文件或目录与万用字元在CD / DVD的图像文件；可以提取，重新命名，删除，打开找到的文件；改善CD / DVD的图像文件的检测引擎；支持裁谈会就燃烧USB连接的CD-R/RW驱动器；固定一些小的错误。

In order to apply remote sensing image in terrain simulation, we must get the remote sensing image with high space resolution and high spectrum resolution. In this paper, we use the TM image, IKONOS image and same zones DEM to make three demention terrain map. In order to keep the TM images spectrum information and import the geometry character of IKONOS to fetch up the disadvantage of TM and IKONOS,we first use the polynomial method to geometry registration the IKONOS image and TM image,then we use the fusion algorithm base on HIS transformation fuse the TM image and IKONOS image.

首先将同一地区的TM影像与IKONOS影像进行精确配准后，使用基于HIS变换的融合方法，将两种影像进行融合，融合结果在保持TM影像丰富光谱信息的基础上，引入了IKONOS影像的几何特征，从而弥补了TM影像分辨率低和IKONOS影像光谱信息缺乏的缺点，并生成具有 1m分辨率的彩色影像；最后将融合结果与相应地区的DEM数据进行复合，生成了具有高度真实感的三维影像图。

And the programming based on matlab has been completed: overall situation threshold value image compression Based on the bior3.1 wavelet, image two-times compressions and the primitive image 3-times decompositions based on the bior3.7 wavelet, the image compression-encoding and decoding based on the harr wavelet and the huffman coding.

并完成了基于 harr 小波基和 huffman 编码方法的图像压缩编解码的编程。

This dissertation presents three segmentation algorithms for compressing image documents, with a high compression ratio of both color and monochromatic compound document images. The proposed algorithms greatly outperform the famous image compression methods, JPEG and DjVu, and enable the effective extraction of the text from a complex background, achieving a high compression ratio for compound document images.

本文中提出的切割方法应用於文件影像压缩，可以明显的看出压缩倍数与视觉品质优於JPEG或DjVu，而且在本文第三个切割方法中，提出新的区域性区块特徵分离与拼图式全图整合的方法，在解决复杂型复合式文件影像的文字切割问题时，即使在同一张完整的文件影像中，包含各种不同程度的复杂状况，也可以顺利的将不同颜色、不同复杂背景与不同交叠程度的文字切割出来，提高各种复杂型复合式文件影像的压缩品质。

Fourthly, it discusses the spectral image loss-less compression by applying thecorrelation and the entropy of the spectral image sequence. It gives and analyses three expressions of imaging spectrometer images, and tells the change in correlation coefficient and entropy for different expressions. At last, it puts forward D2PCM de-correlation method to reduce the spatial and spectral redundancy. This method improves the compression ratio and the compression efficiency, being easy and fast in operation.

根据成像光谱图像的空间、谱间相关性和信息熵的特征，提出成像光谱图像序列的三种表示方法，分析了不同表示方法的相关系数和图像信息熵的变化，并研究出了成像光谱图像的无损压缩方法，即利用D~2PCM方法对光谱图像序列进行去相关处理，同时降低图像的空间和谱间冗余，在提高了无损压缩的压缩比和压缩效率的同时，算法具有简单快速的优点。

ABSTRACT The technology of image compression gains more attention in information society; wavelet transform is one of research hotpots on image compression field. It is a good technical realization method for high efficiency compression.

图像压缩技术在当前的信息化社会中得到越来越多的重视，而小波变换技术是目前图像压缩领域的一个研究热点，它是实现高效压缩的一个技术手段。

Essential hypertension caused by neurovascular compression of the left ventrolateral medulla was associated with malbalance of vasomotor center in the dorsal medulla. The possible pathogenesis was the following:① An irritation of the left RVLM by pulsatile compression of an ectatic vessel would increase activity of central sympathetic neuron.② Neurovascular compression at the REZ of the cranial nerves Ⅸ and Ⅹ decreased excitation of parasympathetic nerve.③ Decreased sensitivity of afferent inputs to neuron of nucleus tractus solitarii in the sensory area lead to hyperactivity of central sympathetic nervous system due to pulsatile compression of the left RVLM.④ Neurocompression of the left RVLM and REZ in the left cranial nerves Ⅸ and Ⅹ lead to an overactivity of central renin angiotensin system.

3，结论：左侧延髓腹外侧Ⅸ、Ⅹ颅神经REZ动脉血管压迫所导致的高血压的发生与左侧延髓血管运动中枢对血压的调节失衡有关，其可能机制是：①左侧RVLM在搏动性血管压迫刺激下，中枢交感神经元活性增高；②左侧Ⅸ、Ⅹ颅神经REZ受压导致副交感神经兴奋性降低；③感受区孤束核神经元接受迷走神经传入冲动的敏感性减低，导致中枢交感神经活性增高；④左侧RVLM及Ⅸ、Ⅹ颅神经REZ受压引起中枢RAS活性增加。

The sprouts from endplate and a few contact sites of NCAM with AChR can be seen.C: Untreated group on the 20th day after L5 nerve root compression. There are some AChR plaques of morphological abnormality, and no contact sites of NCAM with AChR although the intensity and scope of NCAM staining is increased.D: Yiqi Huayu Recipetreated group on the 20th day after L5 nerve root compression. All the AChR sites are reoccupied by NCAM and the morphology of AChR are restored. E: Untreated group on the 30th day after lumbar nerve root compression. AChR plaques display irregularity in shape, with a few round or spindle shaped cupulae. Meanwhile, some NCAM stainings are still shown to be around the AChR. F: Yiqi Huayu Recipetreated group on the 30th day after L5 nerve root compression.

随着时间的推移，AChR斑的形态渐趋规则，NCAM反应也逐步增强，至造模后20 d达到最高峰，但益气化瘀方组仍然明显优于模型组，其不仅在数值上超过了胚胎期大鼠，且与AChR全部重叠；而模型组仍可见到不少重叠不全且形态异常的AChR斑。L5神经根受压后30 d，NCAM的表达水平开始下降，基本局限于终板区内，其下降速度和范围在益气化瘀方组明显大于模型组；模型组不仅NCAM的表达明显高于益气化瘀方组，且仍能见到一些成熟不全的AChR斑；而益气化瘀方组AChR斑形态已接近于正常。

The results of this study indicate that: 1 the post–surcharge secant secondary compression index decrease with the increase in surcharge ratio; 2 the amended post-surcharge secant secondary compression index also decrease with the increase in surcharge ratio; 3 time at which secondary compression reappears increases with the increase in surcharge ratio; 4 the post-surcharge secondary compression strain rate under the same final load with surcharging and without surcharging have a linear logarithm to logarithm relationship.

根据研究的结果显示：1超载比愈大，后超载割线二次压缩指数所受到的折减愈大，表示对软弱粘土的二次压缩沉陷量改良效果愈好；2修正之后超载割线二次压缩指数亦随超载比的增加而折减；3二次压缩再现时间与超载比的关系显示，增加超载比会延迟二次压缩再现的时间并可将分析结果以一均值曲线表示； 4对后超载应变速率分析发现在相同最终载重，未受超载作用与受超载作用的二次压缩应变速率呈现一双对数的线性关系。

In order to unsterdand the properties of rebound and recompression, this study carried out oedometer tests for six soft clays with three surcharge ratios to simulate surcharging. Properties analyzed in this thesis include: 1 post–surcharge secant secondary compression index; 2 amended post- surcharge secant secondary compression index in which the time starts from load application; 3 time at which secondary compression reappears; 4 post-surcharge secondary compression strain rate.

为探讨软弱粘土於超载移除后的回胀与再压缩性质，本研究利用传统单向度压密试验仪对六种土样分别进行三种超载比的超载单向度压密试验，并分析所得结果，分析方法包括：1评估后超载割线二次压缩指数；2评估修正后超载割线二次压缩指数，将后超载的时间原点改为由加载起始时起算；3评估二次压缩再现时间与超载比的关系；4评估后超载二次压缩应变速率之特性。

We have something to do in the new stage.

在这段崭新的时期中，我们有一些要做的。

The difference between tourism decision-making under uncertainty and risky tourism decision-making is indistinctive.

其中不确定性旅游决策和风险旅游决策的界线比较模糊，两者的区分是相对的。