首页>>学术检索

基于BMV特征的西瓜成熟度无损检测方法

标题: 基于BMV特征的西瓜成熟度无损检测方法
英文标题: Non-destructive detection method of watermelon maturity based on BMV features
作者: 高冠东,滕桂法,肖珂,张晓茹
出版时间: 2010-01-01
机构: 河北农业大学,河北农业大学
关键词: 无损检测,音频响应,频带幅值向量,西瓜成熟度
英文关键词: non-destructive detection,acoustic response,band magnitude vectors,watermelon maturity
刊名: 农业工程学报
英文刊名: Transactions of the Chinese Society of Agricultural Engineering
ISSN: 1002-6819
卷号: 008
基金: ^A河北农业大学非生命学科与新兴学科科研发展基金^B2007FSM-Z-XX-01^D1
页码: 326-330
分类号: TP274
摘要: 针对两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音频特征与两瓜成熟度的相关性,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.
英文摘要: 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,th...