6-D Object Pose Estimation Using Multiscale Point Cloud Transformer

Zhou, Guangliang; Wang, Deming; Yan, Yi; Liu, Chengju; Chen, Qijun

doi:10.1109/tim.2022.3222467

Cited by 7 publications

(2 citation statements)

References 44 publications

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“…Similarly, we used the dataset in the first working condition for cross-verification. Bearing1_4 wobble violently at the end of degradation [32], resulting in the recording of only a portion of the deterioration signal, which contributed little to the forecast. So we took the remaining four data and tested them.…”

Section: Datasets Descriptionmentioning

confidence: 99%

“…(2) Case study 2 for XJTU-SY Dataset: in case 2, we adopted the working condition 1 data set of XJTU-SY for the experiment. Because Bearing1_4 was affected by violent jitter, only part of the degradation mode was recorded, which did not contribute much to the prediction effect [32]. Based on the above reasons, Bearing1_1, Bearing1_2, Bearing1_3, and Bearing1_5 under working condition 1 are adopted for prediction, and the results are shown in table 5.…”

Section: Case Analysismentioning

confidence: 99%

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Remaining useful life estimation of bearing using spatio-temporal convolutional transformer

Zhu,

Lyu,

Gao

et al. 2024

Meas. Sci. Technol.

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The maintenance costs, productivity, health, and safety of mechanical equipment all heavily rely on the remaining usable life (RUL) of the bearings. Bearing datasets from running to failure are often in the form of life cycle sequences, which contain information about potential degradation failures in both the long and short term. Recently, the Transformer has been widely used in the RUL field due to its ability to capture some of the degradation information of the bearing. However, the Transformer is weak in acquiring local information and fails to extract temporal features from the degradation process. To solve the above problems, this paper proposes a spatio-temporal convolutional Transformer (STCT) model, which mainly consists of the dual convolutional spatio-temporal network (DCSTN) and multi-scale Transformer (MST). It not only captures the degradation features of the bearings from the temporal and spatial perspectives but also enhances the ability of the Transformer to acquire local information. We propose DCSTN as a feature extraction module, and the proposed spatio-temporal attention can capture the relevant degradation state features at different moments. In addition, MST uses a new module of multi-scale dilated causal convolution combined with multi-head attention to realize the combination of global degradation information and local contextual information capturing ability. We demonstrate the effectiveness and sophistication of the STCT model by conducting comparative experiments with ablation experiments on publicly available datasets.

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Section: Datasets Descriptionmentioning

confidence: 99%

Section: Case Analysismentioning

confidence: 99%