在基于单一方法进行油气勘探的过程中，前人对波段比值的方法给了很高的评价，但效果均不显著。
Though band ratio is highly evaluated as a single method in oil-gas exploration, the effect is far from satisfactory.
实例表明，比值法能够快速解决OV - VRPSDP问题，并且具有较好的优化效果。
The examples show that the ratio method can quickly solve the OV-VRPSDP problem, and have better effect of optimization.
差值法与比值法对不同测量系统的误差修正效果不一样。
In different measurement systems, the error correction effect is also different for the difference method and the ratio method.
目的评价肝素对改善妊娠中晚期脐动脉收缩期最大血流速度（S）与舒张末期血流速度（D）的比值异常的临床效果。
ObjectiveTo evaluate the efficiency of heparin on the ratio of peak systolic to least diastolic flow velocity (S/D) of umbilical artery flow velocity waveforms at second-trimester pregnancies.
作用于合成孔径雷达图像中的相干斑抑制时，不论从视觉效果还是等效视数和比值图等衡量指标上都取得了较好的效果。
More significance, this technique is used for restraining speckle noise in synthetic aperture radar images successfully in equivalent number of looks and ratio images.
本文用卫星遥感的方法，着重就比值处理、非监督分类和监督分类等计算机图象处理方法对江苏沿海潮间带土壤类型识别的效果进行试验和比较。
They vary with vegetation and water conditions, which results in unequal multispectral characters Therefore, the types of soil can be recognized by computer image processing using LANDSAT CCT.
动态改变大地水准面差距与地球半径的比值，改善了地球形状的三维表达效果；
Dynamic changing the scale of geoid undulations and the radius of the earth, the video mode of the earth figure is improved.
讨论了不同的液体和气体压力以及它们的比值对喷雾效果的影响；
The spray particle diameters of the nozzle under different working conditions were calculated.
通过分析阴影的物理模型，得出局部纹理的光照不变性，利用基于比值判决的LBP纹理法来区分运动车辆和阴影，并应用亮度约束和几何启发式准则进一步改善阴影检测效果。
The distribution of improved LBP texture is discussed and a significant test is performed to classify each moving pixel into foreground object or moving shadow according to this theory.
通过分析阴影的物理模型，得出局部纹理的光照不变性，利用基于比值判决的LBP纹理法来区分运动车辆和阴影，并应用亮度约束和几何启发式准则进一步改善阴影检测效果。
The distribution of improved LBP texture is discussed and a significant test is performed to classify each moving pixel into foreground object or moving shadow according to this theory.
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