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Curve detection

Hello, is there any chance of detecting the highlined green curve (or a close one) in an image like this?

I've worked on ellipse fitting in the past and i've had quite good result but the pool of points was A LOT smaller (getting even there wrong results sometimes).

So i'm wondering if this is a possible path before i even start to look for a Hough modification and implementation, because i will need to keep a certain degree of freedom in curve parameters (and this is making things even worse if possible)..

Thank you

image description

Curve detection

Hello, is there any chance of detecting the highlined green curve (or a close one) in an image like this?

I've worked on ellipse fitting in the past and i've had quite good result but the pool of points was A LOT smaller (getting even there wrong results sometimes).

So i'm wondering if this is a possible path before i even start to look for a Hough modification and implementation, because i will need to keep a certain degree of freedom in curve parameters (and this is making things even worse if possible)..

Thank you

image description

image description