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- W4205121631 abstract "Both direct and optical flow visual odometers are based on a strong assumption that the gray scale is invariant. Because of this assumption, the system is sensitive to the luminosity change of the image. To solve this problem, this paper proposes monocular visual-inertial odometry exploiting both multilevel Oriented Fast and Rotated Brief (ORB) feature and tightly-coupled fusion strategy. The purpose of this method is to improve the speed and robustness of matching. Furthermore, it also can build a high-precision initialization map to ensure the successful initialization of the whole system and the smooth operation of the subsequent. This paper pre-integrates Inertial Measurement Unit (IMU) data and constructs constraints with visual reprojection to optimize the solution. The experiments evaluated on public datasets demonstrate the multilevel ORB feature and the IMU fusion make the algorithm more accurate than other excellent projects. Compared with OKVIS and VINS-Mono using the visual and inertial fusion, the algorithm also performs better in the accuracy of state estimation and system robustness." @default.
- W4205121631 created "2022-01-25" @default.
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- W4205121631 date "2021-10-22" @default.
- W4205121631 modified "2023-09-27" @default.
- W4205121631 title "An Improved Tightly-Coupled Monocular Visual-Inertial Location Algorithm" @default.
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- W4205121631 doi "https://doi.org/10.1145/3501409.3501694" @default.
- W4205121631 hasPublicationYear "2021" @default.
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