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| 基于BMV特征的西瓜成熟度无损检测方法 | |
| 引用本文： | 高冠东,滕桂法,肖 珂,张晓茹.基于BMV特征的西瓜成熟度无损检测方法[J].农业工程学报,2010,26(8):326-330. |
| 作者姓名： | 高冠东 滕桂法 肖 珂 张晓茹 |
| 作者单位： | 1. 河北农业大学信息科学与技术学院,保定,071001 2. 河北农业大学研究生学院,保定,071001 3. 中央司法警官学院现代教育技术中心,保定,071000 |
| 基金项目： | 河北农业大学非生命学科与新兴学科科研发展基金（2007FSM-Z-XX-01） |
| 摘 要： | 针对西瓜成熟度无损测定的难度较大这一问题，提出了一种基于音频响应频带幅值向量（BMV）特征的西瓜成熟度无损检测方法。搭建了一套简单的音频采集平台，检验了BMV音频特征与西瓜成熟度的相关性，并与4种已用于西瓜无损检测的音频特征进行了比较；测定了不同打击力度对音频响应和BMV的影响；使用PNN算法对2个品种西瓜的BMV样本进行了成熟度检测。试验结果表明：经过音频特征间的比较，BMV与西瓜成熟度相关性最高，并且打击力度对特征的影响较小，整套算法对2个品种的成熟度检测准确度较高。 |
| 关 键 词： | 无损检测，音频响应，频带幅值向量，西瓜成熟度 |
| 收稿时间： | 2010/1/14 0:00:00 |
| 修稿时间： | 3/8/2010 12:00:00 AM |
Non-destructive detection method of watermelon maturity based on BMV features |
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| Gao Guandong,Teng Guifa,Xiao Ke,Zhang Xiaoru.Non-destructive detection method of watermelon maturity based on BMV features[J].Transactions of the Chinese Society of Agricultural Engineering,2010,26(8):326-330. | |
| Authors: | Gao Guandong Teng Guifa Xiao Ke Zhang Xiaoru |
| Abstract: | Maturity of watermelons is hard to evaluate by non-destructive methods. In this paper, a watermelon maturity non-destructive detection method based on band magnitude vector (BMV) features of acoustic impulse response was introduced. BMV feature of audios was presented for melon mature detection. A simple acoustic collection platform was built for testing the correlation of BMV and ripeness stages, and it was compared with four acoustic features that already were used in watermelon non-destructive detection. Then, the influence of acoustic response and BMV feature was researched in different impacting strength. BMV features from two varieties of melons were detected for ripeness stages by PNN algorithm. Experimental results showed that the correlation of BMV and ripeness was the highest in all of the features, the influence of impacting strength was little for BMV, and the method had high accuracy for detecting maturity of two melon varieties. |
| Keywords: | non-destructive detection acoustic response band magnitude vectors watermelon maturity |
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