Circles are very similar to the popular Checkerboard target. It accomplishes the same task but uses different features to locate the target. In the case of the Checkerboard it use the corners of the checkers. For Circle it uses the center of the circles. Any performance difference observed is dependent on the feature detection algorithm used.
All of our tags and targets are totally customizable. We print our tags and targets on rigid materials using high resolution printers. This provides the highest precision and the best contrast, yielding an optical grade target. We offer a variety of material types to suit your application. Whether it's a research lab, outdoors, or on a drone, we have the perfect material.