A UKF-based Approach for Indoor Camera Trajectory Estimation | ||
| Journal of AI and Data Mining | ||
| دوره 10، شماره 4، بهمن 2022، صفحه 493-503 اصل مقاله (1.6 M) | ||
| نوع مقاله: Original/Review Paper | ||
| شناسه دیجیتال (DOI): 10.22044/jadm.2022.11550.2315 | ||
| نویسندگان | ||
| Seyyed A. Hoseini* 1؛ P. Kabiri2 | ||
| 1Faculty of Electrical and Computer Engineering, University of Birjand, Birjand, Iran. | ||
| 2School of Computer Engineering, Iran University of Science and Technology, Tehran, Iran. | ||
| چکیده | ||
| When a camera moves in an unfamiliar environment, for many computer vision and robotic applications it is desirable to estimate camera position and orientation. Camera tracking is perhaps the most challenging part of Visual Simultaneous Localization and Mapping (Visual SLAM) and Augmented Reality problems. This paper proposes a feature-based approach for tracking a hand-held camera that moves within an indoor place with a maximum depth of around 4-5 meters. In the first few frames the camera observes a chessboard as a marker to bootstrap the system and construct the initial map. Thereafter, upon arrival of each new frame, the algorithm pursues the camera tracking procedure. This procedure is carried-out in a framework, which operates using only the extracted visible natural feature points and the initial map. Constructed initial map is extended as the camera explores new areas. In addition, the proposed system employs a hierarchical method on basis of Lucas-Kanade registration technique to track FAST features. For each incoming frame, 6-DOF camera pose parameters are estimated using an Unscented Kalman Filter (UKF). The proposed algorithm is tested on real-world videos and performance of the UKF is compared against other camera tracking methods. Two evaluation criteria (i.e. Relative pose error and absolute trajectory error) are used to assess performance of the proposed algorithm. Accordingly, reported experimental results show accuracy and effectiveness and of the presented approach. Conducted experiments also indicate that the type of extracted feature points has not significant effect on precision of the proposed approach. | ||
| کلیدواژهها | ||
| Feature Extraction؛ Unscented kalman Filter؛ Robot Vision؛ Simultaneous Localization and Mapping؛ Camera Tracking | ||
| مراجع | ||
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