亚洲一区欧美在线,日韩欧美视频免费观看,色戒的三场床戏分别是在几段,欧美日韩国产在线人成

基于三維線框模型的類球體農(nóng)產(chǎn)品體積和表面積測(cè)量
作者:
作者單位:

作者簡(jiǎn)介:

通訊作者:

中圖分類號(hào):

基金項(xiàng)目:

國(guó)家自然科學(xué)基金項(xiàng)目(61405175)和深圳市戰(zhàn)略新興產(chǎn)業(yè)發(fā)展專項(xiàng)(JCYJ20150417094158023)


Measurement of Volume and Surface Area for Spheroid Agricultural Product Based on 3D Wire Frame Model
Author:
Affiliation:

Fund Project:

  • 摘要
  • |
  • 圖/表
  • |
  • 訪問統(tǒng)計(jì)
  • |
  • 參考文獻(xiàn)
  • |
  • 相似文獻(xiàn)
  • |
  • 引證文獻(xiàn)
  • |
  • 資源附件
  • |
  • 文章評(píng)論
    摘要:

    為了快速無損測(cè)量不規(guī)則類球體形狀農(nóng)產(chǎn)品的體積和表面積,提出了基于三維線框模型的圖像處理方法。即以Android系統(tǒng)為工作平臺(tái),利用Java結(jié)合OpenCV函數(shù)庫(kù),以三維線框模型為理論指導(dǎo)編寫包括圖像采集、圖像分割、體積和表面積計(jì)算的應(yīng)用軟件。用3種不同直徑的標(biāo)準(zhǔn)球體在6個(gè)拍攝距離下進(jìn)行測(cè)量,所獲測(cè)量值與理論值的誤差小于0.3%,表明攝像頭自身畸變小,在圖像能完整呈現(xiàn)被測(cè)物的拍攝距離,被測(cè)物輪廓的大小對(duì)測(cè)量精度的影響在可接受的誤差范圍之內(nèi)。用所提方法、排水法和掃描圖像處理法對(duì)不規(guī)則形狀的柑橘、蘋果、梨各10組進(jìn)行體積和表面積測(cè)量,結(jié)果顯示3種測(cè)量方法的相關(guān)系數(shù)大于0.98,表明該方法可較精確測(cè)量類球體農(nóng)產(chǎn)品的體積和表面積。

    Abstract:

    This article proposed a new method for fast measurement of the volume and surface area (VSA) of spheroid agricultural products based on 3D wire frame model via image processing using an Android device (AD). The spheroid product counting algorithm software was developed in Java combined with OpenCV library that uses AD to measure the VSA of spheroid agricultural products. The target photos were taken in normal conditions by AD. The image processing was used to get image, segment image, generate binarization image, filter noise, and calculate the VSA according to the coordinate of threedimensional wireframe model. Using this method to measure the ball with different diameters at six distances that between 100mm and 350mm, and the segment spacing was 50mm, which verified that the camera distortion was less than 0.3%, and the contour size of the measured object had scarcely effect on the measurement accuracy. The proposed method was applied to measure the VSA of 10 different citrus, apple and pear, and then all the fruits were measured by drainage method to get their volume and scanning method to attain their surface area. The test result shows that the correlation coefficient among proposed method, drainage method and scanning method was more than 0.98. The results indicated that the introduced method could be utilized as a rapid and nondestructive method for the AD measurement of different spheroid produces of agricultural products.

    參考文獻(xiàn)
    相似文獻(xiàn)
    引證文獻(xiàn)
引用本文

龔愛平,張衛(wèi)正,何 勇,聶鵬程.基于三維線框模型的類球體農(nóng)產(chǎn)品體積和表面積測(cè)量[J].農(nóng)業(yè)機(jī)械學(xué)報(bào),2016,47(7):338-344. Gong Aiping, Zhang Weizheng, He Yong, Nie Pengcheng. Measurement of Volume and Surface Area for Spheroid Agricultural Product Based on 3D Wire Frame Model[J]. Transactions of the Chinese Society for Agricultural Machinery,2016,47(7):338-344.

復(fù)制
分享
文章指標(biāo)
  • 點(diǎn)擊次數(shù):
  • 下載次數(shù):
  • HTML閱讀次數(shù):
  • 引用次數(shù):
歷史
  • 收稿日期:2016-03-09
  • 最后修改日期:
  • 錄用日期:
  • 在線發(fā)布日期: 2016-07-10
  • 出版日期: 2016-07-10