SAR image power line detection method of local Hough transform and morphological optimization

The invention belongs to the technical field of SAR image power line detection, in particular to an SAR image power line detection method of local Hough transform and morphological optimization. The method includes performing edge detection on an original SAR image through an Edison operator, and acquiring a binary image with edge information; dividing the binary image with the edge information into a plurality of edge zones; performing line detection on each edge zone by the Hough transform method on the basis of polar coordinate transform space, and acquiring the Hough transform detection results; in each edge zone of the Hough transform detection results, selecting a longest line segment, if the minimum distance between an optional line segment and the longest line segment is smaller than a distance threshold and the included angle between the corresponded line segment and the longest line segment is smaller than an angle threshold, rounding the line segment, if not, retaining the corresponded line segment, and acquiring an SAR image power line detection result finally.