ROI
ROI 可以任意选择；边缘不一定要完全位于 ROI 内。如果 ROI 中有多条边，则始终使用根据模型参数找到的最长边进行搜索。
模型参数的影响
通过 "边缘搜索区域 "输出的区域可用于检查边缘的位置--根据设定的模型参数--以便 找到边缘。横线表示模型参数选择的好坏。一行中的交叉点越多（要搜索的边缘与输出圆的匹配），搜索就越强大。
示例
圆模型
ROI
The ROI can be chosen arbitrarily; the edge does not have to be completely within the ROI. If there are several edges in the ROI, the longest edge found on the basis of the model parameters is always used for the search.
Effect of the model parameters
The region output by "Region for edge search" can be used to check where the edge can be located – based on the set model parameters – in order for it to be found. The crosses define how well the model parameters were chosen. The more crosses there are in a line (match of the edge to be searched for and the output circle), the more robust the search.
Example
Circle_Model