detect lines on xray image

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Hi,

I am looking to detect lines on an x-ray image using openCV. Please see the attached sample images.

I am aware of Hough transform. Is there any other reliable approach using OpenCV or any other C++ library ? I am also looking to somehow determine the confidence for each detected line, such as line[20] has confidence of 1 (maximum), line[30] has next best confidence of 0.95 and so on

Sample Image

Output Image (potential lines are highlighted in red circles)

Any guidance will be really appreciated in this regard