Arrowsmith: Automatic Archery Scorer

We present a method for automatically determining the score of a round of arrows lodged in an archery target face. That is, given an image consisting of a complete target face, and given a set of arrows that have struck within the target face, we generate a score for each arrow with regard to which two circles it’s between. To do this, we present a multi-step process to determine the location and shape of the set of concentric and evenly distributed circles (that may be distorted by perspective) representing the target face, locate and orient the each arrow, and find the pinpoint location of where the arrowheads pierce the target face. Our partially implemented method currently produces results that demonstrate its capability to detect circles and accurately find points of arrowhead intersection.