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确定土地的界限,然后确定土地的长度
原标题:To determine the boundaries of pieces of lands and then their lengths

Hello!! I am trying to determine the real lengths of boundaries of pieces of lands frm an aerial image.Having applied canny method to detect the boudaries, i then applied Hough transformation to detect the straight lines of the boundaries (Boundaries are assumed to be straight lines here).Distances were calculated also but the problem are 1. Not all boundaries were detected by the Hough Transformation.2.Calculated distances could not be ascertained to any particular line on the image, because there are many lines defining the boundaries of the pieces of lands, so i dont know which measurement belongs to which line on the image. Pls assist.

问题回答

如果是一次性计算(和相对较小的地区),那么,如果采用地理信息系统包计算其长度,那么可以更好地将多角手工数字化。 或者,如果你的线路足够干净,你可以将其改成多功能体;你可能不会拿到所有包裹,但至少是用一种方法计算长度,并把它们附在特定的土地上。





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