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- W2941610697 abstract "This paper focuses on loop-closure detection (LCD) for a visual simultaneous localization and mapping (SLAM) system. We present a strategy that combines a Bayes filter and features from a pre-trained convolution neural network (CNN) to perform LCD. Rather than using features from only one layer, we fuse features from multiple layers based on spatial pyramid pooling. A flexible Bayes model is then formulated to integrate the sequential information and similarities that are computed by features at different scales. The introduction of a penalty factor and bidirectional propagation enables our approach to handle complex trajectories. We present extensive experiments on challenging datasets, and we compare our approach to state-of-the-art methods, to evaluate it. The results show that our approach can ensure remarkable performance under severe condition changes and handle trajectories that have different characteristics. We also show the advantages of Bayes filters over sequence matching in the experiments, and we analyze our feature fusion strategy by visualizing the activations of the CNN." @default.
- W2941610697 created "2019-05-03" @default.
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- W2941610697 date "2019-04-21" @default.
- W2941610697 modified "2023-09-25" @default.
- W2941610697 title "Robust Loop Closure Detection Using Bayes Filters and CNN Features" @default.
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- W2941610697 doi "https://doi.org/10.1142/s0219843619500117" @default.
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