Haraguchi, D.; Miyahara, R. High Accuracy and Wide Range Recognition of Micro AR Markers with Dynamic Camera Parameter Control. Electronics2023, 12, 4398.
Haraguchi, D.; Miyahara, R. High Accuracy and Wide Range Recognition of Micro AR Markers with Dynamic Camera Parameter Control. Electronics 2023, 12, 4398.
Haraguchi, D.; Miyahara, R. High Accuracy and Wide Range Recognition of Micro AR Markers with Dynamic Camera Parameter Control. Electronics2023, 12, 4398.
Haraguchi, D.; Miyahara, R. High Accuracy and Wide Range Recognition of Micro AR Markers with Dynamic Camera Parameter Control. Electronics 2023, 12, 4398.
Abstract
This paper presents a novel dynamic camera parameter control method for position and posture estimation of highly miniaturized AR markers (micro AR markers) using a low cost general camera. The proposed method performs iterative calculation of the marker’s position and posture to converge them to specified accuracy with dynamically updating the camera’s zoom, focus and other parameter values based on the detected marker’s depth distances. For a 10 mm square micro AR marker, the proposed system demonstrated recognition accuracy of better than ±1.0% for depth distance and 2.5∘ for posture angle with a maximum recognition range of 1.0 m. In addition, the iterative calculation time was at most 0.7 seconds in an initial detection of the marker. These experimental results suggest that the proposed method and system can be applied to a robotic precise handling of small objects with low cost.
Keywords
Image recognition; Micro AR marker; Camera parameter control; Iterative recognition
Subject
Computer Science and Mathematics, Computer Vision and Graphics
Copyright:
This is an open access article distributed under the Creative Commons Attribution License which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited.
