现有的用于静校正处理的自动拾取初至波方法的精度和速度已难以适应这种复杂的地表条件。
The precision and speed of automatic detecting first breaks approach currently used for static corrections processing cannot adapt to such complex surface conditions.
常规的初至拾取方法存在着较大的误差。
Rather large errors will be happened usually in conventional method of first break picking.
为此，本文提出了一种新的基于图像边缘检测技术的初至波自动拾取方法。
For that reason, the paper presented a new method of automatic first breaks pick-up based on the technique of image edge detection.
根据初至波特点，基于数字图像处理技术，提出了应用边缘检测和边缘追踪技术进行初至波自动拾取的方法。该方法的实现过程为：①对地震记录做单道归一化处理；
The digital image processing such as edge detection and boundary tracing to pick up the first break time is discussed in this paper, which based on the specialty of first break time.
在地震波初至走时拾取研究上，寻找既保证准确性，又能提高运算速度的方法，以适应现场评价需求。
On the study of seismic first break, in order to fit the requirements of locale evaluation, it is needed to find a method that can assure accuracy and improve the speed of computation.
而采用瞬时强度比法后，初至曲线的同向轴变得更加光滑，拾取异常点的情况大为减少，从而有效的提高拾取的精度。
When using the instantaneous intensity ratio method, the event of first arrival curve becomes more smooth, and abnormal points have greatly reduced, thus the accuracy of picking is greatly enhanced.
在折射静校正处理中应针对不同地貌特征建立初至拾取原则和初始速度模型，以确保折射静校正结果的准确可靠。
The results have been used to guide the pickup of first breaks and to construct initial velocity model for refrac…
在折射静校正处理中应针对不同地貌特征建立初至拾取原则和初始速度模型，以确保折射静校正结果的准确可靠。
The results have been used to guide the pickup of first breaks and to construct initial velocity model for refrac…
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