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Your search keyword '"Yu, Zhixiong"' showing total 15 results
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15 results on '"Yu, Zhixiong"'

1. The Realtime Indoor Localization Unmanned Aerial Vehicle

Author

Zhou, Yimin, Yu, Zhixiong, Ma, Zhuang, Filipe, Joaquim, Editorial Board Member, Ghosh, Ashish, Editorial Board Member, Prates, Raquel Oliveira, Editorial Board Member, Zhou, Lizhu, Editorial Board Member, Sun, Fuchun, editor, Liu, Huaping, editor, and Fang, Bin, editor

Published
2021
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6. A Novel Pathway of Chlorimuron-Ethyl Biodegradation by Chenggangzhangella methanolivorans Strain CHL1 and Its Molecular Mechanisms

Author

Yu, Zhixiong, primary, Dai, Yumeng, additional, Li, Tingting, additional, Gu, Wu, additional, Yang, Yi, additional, Li, Xiang, additional, Peng, Pai, additional, Yang, Lijie, additional, Li, Xinyu, additional, Wang, Jian, additional, Su, Zhencheng, additional, Li, Xu, additional, Xu, Mingkai, additional, and Zhang, Huiwen, additional

Published
2022
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7. UAV Based Indoor Localization and Objection Detection

Author

Zhou, Yimin, Yu, Zhixiong, and Ma, Zhuang

Subjects
Artificial Intelligence, Biomedical Engineering
Abstract

This article targets fast indoor positioning and 3D target detection for unmanned aerial vehicle (UAV) real-time task implementation. With the combined direct method and feature method, a method is proposed for fast and accurate position estimation of the UAV. The camera pose is estimated by the visual odometer via the photometric error between the frames. Then the ORB features can be extended from the keyframes for the map consistency improvement by Bundle Adjustment with local and global optimization. A depth filter is also applied to assist the convergence of the map points with depth information updates from multiple frames. Moreover, the convolutional neural network is used to detect the specific target in an unknown space, while YOLOv3 is applied to obtain the semantic information of the target in the images. Thus, the spatial map points of the feature in the keyframes can be associated with the target detection box, while the statistical outlier filter can be simultaneously applied to eliminate the noise points. Experiments with public dataset, and field experiments on the established UAV platform in indoor environments have been carried out for visual based fast localization and object detection in real-time for the efficacy verification of the proposed method.

Published
2022

15. Syntheses of fused tetracyclic quinolines via Ugi-variant MCR and Pd-catalyzed bis-annulation.

Author

Che C, Yang B, Jiang X, Shao T, Yu Z, Tao C, Li S, and Lin S

Subjects
Catalysis, Molecular Structure, Polycyclic Aromatic Hydrocarbons chemistry, Quinolines chemistry, Palladium chemistry, Polycyclic Aromatic Hydrocarbons chemical synthesis, Quinolines chemical synthesis
Abstract

Diversity-oriented synthesis of fused tetracyclic 6,11-dihydroquinoxalino[2,3-b]quinolines is described via a sequential Ugi-variant multicomponent reaction and Pd-catalyzed bis-annulation in one-pot process.

Published
2014
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