頁籤選單縮合
題 名 | Wheeze Recognition Based on 2D Bilateral Filterign of Spectrogram |
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作 者 | Lin, Bor-shing; Lin, Bor-shyh; Wu, Huey-dong; Chong, Fok-ching; Chen, Sao-jie; | 書刊名 | 醫學工程 |
卷 期 | 18:3 民95.06 |
頁 次 | 頁128-137 |
分類號 | 410.1644 |
關鍵詞 | Respiratory sound; CORSA; Wheeze; Spectrogram; Bilateral filter; |
語 文 | 英文(English) |
英文摘要 | This paper describes the design of a low-cost and high performance wheeze recognition system. First, respiratory sounds are captured, amplified and filtered by an analog circuit; ten digitized Analysis (CORSA) standards. Since the proposed wheeze detection algorithm is based on the spectrogram processing of respiratory sounds, spectrograms generated from recorded sounds have to pass through a 2D bilateral filter for edge-preserving smoothing. Finally, the processed spectra go through an edge detection procedure to recognize wheeze sounds. Experiment results show a high sensitivity of 0.967 and a specificity of 0.909 in qualitative analysis of wheeze recognition. Due to its high efficiency, great performance and easy-to-implement features, this wheeze recognition system could be of interest in the clinical monitoring of asthma patients and the study of physiological mechanisms in the respiratory airways. |
本系統中英文摘要資訊取自各篇刊載內容。