Method for determining the speed and average gradient of black-and-white aerial camera films GB/T9862-1988黑白航空照相胶片感光度和平均斜率测定方法
The experiment results show that the method can improve the average gradient and preserve spectrum index commendably. 实验表明算法有效提高了图像的清晰度和保持了光谱特性。
The result shows that average geothermal gradient of this area is 40.8~ 41.3 ℃/ km, which is higher than that of nowadays. 结果表明,该区平均古地温梯度为40·8~41·3℃/km,高于现今平均地温梯度。
The paper groped the method for extracting and quantity those rich texture information using the clip transformation and effective average gradient ( EAG) technique in gray space and the multi-frequency transformation or the wavelet packets technique in frequency space. 对纹理信息的提取侧重于空域的灰度剪切与有效平均梯度相结合及频域空间内的小波包等技术。
It is showed from experiment that under positive switching voltages with various crests the average potential gradient in surface arc cannel is almost indepent of any other parameters; 通过试验发现在不同波头的正极性操作波下,滑闪火花通道内的平均电位梯度与其他因素几乎无关;
A Method for In-Situ Measuring Average Stress Gradient and Elastic Modulus of a MEMS Film MEMS薄膜平均应力梯度及弹性模量在线提取方法
The profiles of cross-sectional solid average concentration and pressure gradient along plugs vary with the gas velocity. 单个料栓的压力梯度与其长度有关,沿单个料栓的压力梯度和截面固含量随气速而变;
This method uses the relative average gradient and combines detection with tracking. 这种方法使用相对平均灰度梯度,并且把检测与跟踪结合起来。
In the duration of deep bed filtration the void ratio of sediment will be varied with the average flow velocity gradient. 过滤过程滤层中沉积物的空隙率随水流平均速度梯度的改变而变化。
Glaucophane schist belts of China are of different types with regard to their average temperature-pressure gradient and tectonic environment. 中国蓝闪石片岩带根据其平均温度-压力梯度和构造地质环境可分为:(1)元古代克拉通内蓝闪石片岩带;
It is quite different from these, such as median filter, neighbouring average, gradient inverse method etc. 它不同于以往的一些噪声平滑方法,如中值滤波法,邻域平均法,梯度倒数法等等。
The average geothermal gradient in the upper mantle represented by the pyroxene geotherm is about 3.3 ℃/ km, which is much less than that derived from the conductive thermal model(≈ 14 ℃/ km), implying the significance of convective heat transfer. 它所代表的上地幔平均地温梯度为3.3℃/km,远小于由传导热模型推导的地温梯度(约14℃/km),暗示了对流热传输占有重要位置。
Given the boundary condition constraints, thermal stress mainly depends on the average temperature and equivalent gradient of the loading field. And these two factors mainly depend upon the sizes of mesh grids. 在给定边界约束条件的情况下,热应力主要取决于温度载荷场的平均温度和等效梯度,而这两个因素主要由单元网格大小决定。
It shows that the quantitative analysis using entropy, joint entropy and average gradient is better than visual quantitative analysis, and provides the way to choose the most suitable IHS transformation for combining images. 试验结果表明:用熵、联合熵和平均梯度这3个客观定量指标评价复合效果不仅比目视评价准确有效,而且提供了选择最佳IHS变换用于复合的方法。
Corners are extracted using improved Harris operator, and feature space of Corner is built based on average square gradient matrix. Then three steps of matching strategy are adopted to realize image matching. 该算法采用改进的Harris算子提取特征点(角点),并建立角点特征空间,根据三级匹配策略,实现特征点的匹配,完成图像配准。
The variation of temperatare in the rolling deformation zone is great, usually average temperature gradient being above 200 ℃/ cm. 轧制变形区温度变化较大,平均温度梯度达200℃/cm以上。
An electrostatically actuated in-situ measuring method for average stress gradient and equivalent elastic modulus of the film is proposed based on pull-in voltages of a set of cantilevers. The key of the measuring method is to realize rapid and accurate calculation of pull-in voltages of the cantilever. 提出了一种利用静电作用下悬臂梁的吸合电压提取薄膜沿厚度方向的平均应力梯度及等效弹性模量的方法,该方法的关键在于实现悬臂梁吸合电压的快速精确计算。
Average gradient method with variable v_0 变V0平均梯度法
In this paper, four kinds of methods to integrate SAR and TM imges are analyzed contrastively, and evaluated quantitatively using entropy, joint entropy and average gradient. 文中对比分析了4种复合方法,并且用熵、联合熵及平均梯度进行了定量评价。
Based on altitude and annual average temperature, slop gradient is the dominant ecological gradients to determine the vegetation area differentiation. 在海拔和年均温的基础上,坡度对植被类型面积分异作用最大。
The method using Wavelet Decomposition of the original image for low frequency and high frequency sections, for low frequency section, using a weighted coefficient; high frequency part of the use of "local average gradient" fusion methods. 该方法利用小波分解,将源图像分解成低频和高频两个部分,对低频部分,采用了自适应加权系数;高频部分采用局部能量与加权相结合的融合方法。
The experiment results indicate that, whether it is based on average value, root-mean-square error, average gradient, entropy, or subjective visual evaluation, the proposed selection methods are feasible and effective. 实验结果表明,无论依据平均值、标准差、平均梯度、熵等客观评价标准,还是视觉主观评价,都可以说明本文的方法是可行的。
The proposed algorithm based on weights of directions can make the image reconstruction get better visual effects, higher average gradient value, smaller Euclidian distance and cost less computation time than the other algorithms. 且该算法能使重建的全彩色图像获得较好的视觉效果、较高的平均梯度值、较小的欧式距离以及较少的耗用时间。
This paper also points out clearly that the average stress is the main driving force for migration of the petroleum in the pore stratum, the downhill direction of average stress gradient is the preponderant direction of the migration oil and gas. 2. 指出了三维应力场中平均应力是描述油气流体在孔隙地层中运移的主要指标,平均应力梯度减小的方向就是油气运移的优势方向。
Secondly, the methods and rules of image fusion are introduced from two aspects: spatial domain and transform domain. Then two novel fusion rules respectively based on local actively measure match and local weighted average gradient. 其次,从空间域和变换域两个方向介绍了不同的影像融合方法和融合规则,提出了基于局部区域平均梯度的加权融合准则和基于窗口的活性测度匹配的融合准则。
Through to the source image region and calculation of average gradient in each image sub-block to determine its fusion weights value, can adaptive to choose the best image sub-block fusion weight value. 通过对源图像进行分块并计算每个图像块的平均梯度来确定图像块观测值的融合权值,可以自适应地选择最佳的图像子块融合权值。