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Defined object function can extract the extremal point s located accurately,form the stable extremal regions,and magnify the local intensity changes.

提出了一种基于不变区域提取算法,通过灰度指数变换,定义的目标函数不仅提取了定位准确的极值点,形成稳定的不变区域,而且突显了每个方向上灰度的变化。

Spectral resolution and spatial resolution of the high temporal resolution image overlays scope with valid the wave band number etc. characteristic, the part caused the extraction of icing zone information in unilateral and judge way to the factitiousness; researchers of the past hangs a neglect of sand in the sea , also influencing an information to withdraw of the accuracy and the integrity.

高时间分辨率影像的空间分辨率、波段的光谱覆盖范围和有效波段数目等特征,部分导致了渤海结冰范围信息提取的片面性和对人为判读的依赖;前人方法对海区悬沙的忽视,也影响了信息提取的正确性和完整性。

This study points to the control of the management and application of imaging to improve the efficiency of image matching as well as in the picture for different feature point extraction process, select the fast, effective, high accuracy of feature point extraction method is of great significance.

本研究对控制点影像的管理与应用、提高影像匹配的效率以及在对于不同的图片进行特征点提取过程中选取快速,有效,精确性高的特征点提取方法具有重要的意义。

The optimal technics conditions of extracting starch for fernery were confirmed through orthogonal test.

以石灰水为浸泡剂,探讨了pH、料液比、浸泡时间、沉降时间对淀粉提取率的影响,并用正交试验确定了蕨根淀粉提取的最佳工艺。

In order to recovering remained vanadium from high vanadium ferrovanadium bearing high A12O3 with electric -silicothermic process, transforming slag conposition with adjusting material in furnace charge can recover vanadium economically and can produce self-willed ferrovanadium bearing high silicon and low vanadiu

利用电硅热法提取含高Al_2O_3成分的高钒铁炉渣中残钒,在炉料中配入调渣物料改造渣型后,能较经济地提取出钒元素,生产自用高硅低钒铁。

If it isn't, it's called a cache miss and the computer has to fetch the information by accessing the main memory or hard disk, which is slower.

如果 CPU 没有提取信息,那么称为高速缓存未命中,计算机必须访问主存储器或硬盘才能提取信息,这样速度将会慢一些。

In addition, the edges, veins, skeleton and fissility of plant leaf are also primary features for plant morphology. So we also studied the method of the automatic extraction of these structural features from leaf images, which is a necessary step to design an automatic plant species system.

另外,叶片的叶缘、叶脉、骨架、裂深等叶片结构特征是植物数值分类学的主要分类性状,也是植物形态学分类的依据,通过数字图像处理技术实现这些性状的自动提取,是计算机辅助植物物种识别的重要内容和必然环节,所以对这些叶片结构特征的自动提取方法也进行了研究。

ConclusionThe optimized method is stable and efficient, the rate of total flavone extracted is up to 2.42%.

结论优化的提取方法效率高,稳定性好,提取总黄酮含量可达2.42%。

In this thesis we carried on the preliminary study to the extraction process of plant essential oil, and measured the biological activity of plant essential oil on red flour beetle, Tribolium castaneum and the housefly, Musca domestica vicina.

采用三因素四水平正交试验设计对植物精油进行提取工艺研究,最佳提取工艺条件是A_2B_3C_3,即50g供试植物加入1000ml水,水蒸气蒸馏120min后,用石油醚萃取,萃取液浓缩以后得到的精油可获最大收益。

The recognition of voiced phonemes in final is based on the first and second formant which are extract from FFT spectrum.

根据浊音的特点,研究了浊音的短帧FFT谱,提出利用谱图和浊音谱结构的知识提取第一、二共振峰等参数,并根据在FFT谱上提取的第一、二共振峰进行浊音串和韵母的识别的方案。

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However, as the name(read-only memory)implies, CD disks cannot be written onorchanged in any way.

然而,正如其名字所指出的那样,CD盘不能写,也不能用任何方式改变其内容。

Galvanizes steel pallet is mainly export which suits standard packing of European Union, the North America. galvanizes steel pallet is suitable to heavy rack. Pallet surface can design plate type, corrugated and the gap form, satisfies the different requirements.

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A single payment file can be uploaded from an ERP system to effect all pan-China RMB payments and overseas payments in all currencies.

付款指令文件可从您的 ERP 系统上传到我们的电子银行系统来只是国内及对海外各种币种付款。