[1]HU Wenchao,SUN Xinzhu,CHEN Mengyuan.Research on BATSLAM algorithm for UAV based on audio perceptual hash closed-loop detection[J].CAAI Transactions on Intelligent Systems,2019,14(2):338-345.[doi:10.11992/tis.201708018]
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CAAI Transactions on Intelligent Systems[ISSN 1673-4785/CN 23-1538/TP] Volume:
14
Number of periods:
2019 2
Page number:
338-345
Column:
学术论文—智能系统
Public date:
2019-03-05
- Title:
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Research on BATSLAM algorithm for UAV based on audio perceptual hash closed-loop detection
- Author(s):
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HU Wenchao; SUN Xinzhu; CHEN Mengyuan
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Anhui Key Laboratory of Electric Drive and Control, Anhui Polytechnic University, Wuhu 241000, China
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- Keywords:
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simultaneous localization and mapping; audio perceptual hash; unmanned aerial vehicle; closed-loop detection; Experience diagram; bionic sonar; sum of absolute difference; Cochlear map
- CLC:
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Q811.211;TP751
- DOI:
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10.11992/tis.201708018
- Abstract:
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Aiming at the problem of constructing two-dimensional empirical graph based on SLAM technology at certain heights,on the basis of RatSLAM, using the bionic sonar system to replace the visual sensor’s BatSLAM mode and audio perceptual hash closed-loop detection, realizing two-dimentional empirical graph optimization under dark conditions. The BatSLAM model uses Sum of Absolute Difference (SAD) image processing methods to update the bionic sonar template. This method only judges whether the appearance of the two cochlear images is consistent, and does not have geometric processing and feature extraction. Because the cochlear images produce various noises during the acquisition and transmission, There are some differences in cochlear maps obtained at the same position. which can lead to the distortion of the constructed empirical map. This article is based on BatSLAM, The audio perceptual hash algorithm is used to extract features of cochlea,and according to closed-loop detection. The improved algorithm not only considers the appearance, but also considers the energy difference between adjacent bands. By improving the accuracy of closed-loop detection, to improve the experience map of the distortion problem. Simulation experiment shows,the BatSLAM model based on audio perceptual hash closed-loop detection is adopted, it not only realizes the construction of two-dimensional experience map under certain height and dark conditions of UAV, but also improves the accuracy of the closed-loop detection, improving the experience map of the distortion problem and implementing the optimization of experience graph.