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Best method to detect darts in a dartboard from above

Sorry I am new to the forum and image processing using openCV so this question is naive. I have cameras mounted above a normal dartboard and need to precisely locate the point of a thrown dart. I can compare before and after images for difference but keep running into noise, shadow and other issues. Is there a way to use shape recognition to find the dart more accurately?

Best method to detect darts in a dartboard from above

Sorry I am new to the forum and image processing using openCV so this question is naive. I have cameras mounted above a normal dartboard and need to precisely locate the point of a thrown dart. I can compare before and after images for difference but keep running into noise, shadow and other issues. Is there a way to use shape recognition to find the dart more accurately?accurately? image description after image unaltered