Automatic Scoring of Shooting Targets with Tournament Precision
Jacek Rudzinski, Marcin Luckner · Frontiers in artificial intelligence and applications · 2012
This paper describes a computer vision based automatic scoring system of shooting targets. The system estimates scoring with a professional tournament precision, but is dedicated to amateur shooters and can work with photos taken by amateur cameras and mobile devices. The automatic scoring issue is divided into three problems: a target detection, a holes detection, and a hole analysis. The target is detected on the base of a bull–eye localization. The holes detection bases on the Hough transformation. The holes analysis localizes a position of hole’s center. The position relative to detected scoring sections is a base for scoring. The proposed algorithm detects holes with 99 percent accuracy. An elimination of false positives results reduces the level of accepted holes to 92 percents. The average error for the automatic score estimation is 0.05 points. The estimation error for over 91 percent holes is lesser than a tournament–scoring threshold.