Crack identification of Yunnan walnuts based on acoustic vibration and feature fusion
Hao Zhang,
Lixia Li,
Liquan Tian
et al.
Abstract:Cracks in walnuts during processing and storage can adversely affect their quality and cause economic losses. To achieve efficient identification of cracked walnuts, this study proposed a method of walnut crack identification based on acoustic vibration and feature fusion. First, the sound signals of intact and cracked walnuts were collected using an acoustic signal acquisition system, and 44 time‐domain features, 13 frequency‐domain features, and 768 Mel spectrogram features (the number of pixel frequencies c… Show more
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