EdgeModel_0 教学时必须注意什么?

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EdgeModel_0 教学时必须注意什么?

ROI

ROI 可以任意选择,但边缘必须完全位于 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。

搜索角度的影响

搜索角(SearchAngle)决定了过渡边缘的搜索方向。SearchAngle 不一定直接指向边缘。此外,模型参数半径公差(RadiusTolerance)和长度公差(LengthTolerance)分别定义了找到的边缘的+-45°(-22.5° - +22.5°)和边缘两端像素的公差。

示例

边缘模型_0

edge_model_0


ROI

The ROI can be chosen arbitrarily; the edge must 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.

Impact of SearchAngle

SearchAngle determines the search direction of the edge for the transition. SearchAngle does not have to point directly to the edge. In addition, model parameter RadiusTolerance defines the tolerance of the found edge with +-45°(-22.5° - +22.5°), and LengthTolerance defines the tolerance of the pixels at both ends of the edge.

Example

EdgeModel_0

edge_model_0