A way to segment bone in the Ultrasound Image
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Stelios Fanourakis on 30 Jun 2019
Commented: Stelios Fanourakis on 1 Jul 2019
As you can see I attach two images. The original us image and the other is after applying a harry's edge detector filter.
As it is obvious, there is a small pattern of white pixels outlining the bone area in the processed image.
1) Is there a better method to preprocess the image and eliminate the randomly white pixels (dots) on the processed image and keep only the major two white lines (curves). The one at the top that looks like a downward curve (hemisphere) and the bone outline. All the rest white speckle dots should be removed.
2) I was thinking of an algorithm to create a pattern of the white pixels in the bone area. One that will estimate certain distance from the white pixels area of the bone (neightbor pixels) and register them, creating a specific pattern of white pixels that can be segmented.
I hope that I can be clear in my thoughts.
Waiting to your feedback.
Image Analyst on 30 Jun 2019
You could try a median filter or something better. See Vision Bib for some ultrasound processing algorithms.
Or you could just threshold and clean up afterwards, like throw out blobs smaller than a certain area or with an aspect ratio that is not right.
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