We handle every grid node with sub-pixel orientation method and find out subsection linearity equation between every space gridinterval by standard difference contrasting method.
对每一个网格节点进行亚像素处理，在相邻的网格区间节点上用标准差值对照法确定分段线性直线方程。
2
In the traditional resistivity sounding method, the pole distance increases little by little with equal logarithm interval, which brings on grid irregular elements.
对于常规的直流电测深法，由于其电极距一般以近似等对数间隔逐渐增大，使得网格单元剖分呈现出不规则性。
3
The accuracy of flood area is mostly dependent on the contour interval of map, accuracy of digitizing map, accuracy of DEM, and interval of GRID, detecting resolution of pixels.