ass日本风韵熟妇pics男人扒开女人屁屁桶到爽|扒开胸露出奶头亲吻视频|邻居少妇的诱惑|人人妻在线播放|日日摸夜夜摸狠狠摸婷婷|制服 丝袜 人妻|激情熟妇中文字幕|看黄色欧美特一级|日本av人妻系列|高潮对白av,丰满岳妇乱熟妇之荡,日本丰满熟妇乱又伦,日韩欧美一区二区三区在线

基于深度信息的草莓三維重建技術(shù)
CSTR:
作者:
作者單位:

作者簡介:

通訊作者:

中圖分類號:

基金項目:

國家高技術(shù)研究發(fā)展計劃(863計劃)項目(2013AA102406)


3D Reconstruction of Strawberry Based on Depth Information
Author:
Affiliation:

Fund Project:

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

    以盆栽和高架兩種栽培模式生長環(huán)境下的草莓植株為研究對象,,提出了一種基于深度信息分割聚類的草莓冠層結(jié)構(gòu)形態(tài)三維重建算法。首先,,以深度信息的不連續(xù)性特征作為草莓植株逐層分割的重要依據(jù),以深度二維圖像作為全局參考指標(biāo),,提出深度信息步進方法,,自動提取冠層點云;其次,,改進密度聚類算法,,有效濾除隨機、跳邊和背景噪聲,;最后,,改進基于Harris算子的多源圖像融合算法,實現(xiàn)彩色圖像與強度圖像的配準及點云顏色的映射,,三維重建出具有顏色信息的草莓冠層結(jié)構(gòu)形態(tài),。為驗證該算法的有效性,將三維重建后冠層的平均單葉長度及A-B線距離作為評價指標(biāo),,試驗結(jié)果表明,,模型的平均單葉長度計算正確率為93%左右,A-B線距離計算正確率為97%左右,,研究結(jié)果可為草莓采摘機器人果實識別過程中枝葉空間結(jié)構(gòu)關(guān)系的構(gòu)建提供技術(shù)支持,。

    Abstract:

    With the development of 3D acquisition devices, 3D modeling method emerges in endlessly. In recent years, 3D reconstruction based on real data is focused on scanning and TOF imaging method. The main drawback of the former is that needs extensive man-machine interaction. The latter can transform a wide range of scene depth information into plant 3D point cloud data in a short time. Most plant reconstruction method based on TOF technology is center on brance structure, but for herbaceous plant, leaves are not easy to operate. So a 3D model reconstruction algorithm was presented based on depth information segmentation and clustering for potted and elevated strawberry. Firstly, the algorithm took discrete depth information as a significant reference standard for object segmentation while taking the depth-dimensional image as a global reference standard to extract discrete point cloud through depth stepping. Then, the algorithm used clustering algorithm based on density to filter out random noise, jump-edge noise as well as background noise. By applying Harris algorithm between color image and the intensity image, a robust registration result was got and an index relationship between point cloud and pixel points was found. Ultimately, 3D strawberry canopy morphology with full color information was reconstructed after following all those steps. Experimental results showed that the algorithm had achieved good effects on segmentation clustering and coloring for potted and elevated strawberry leaves. The accuracy of single-leaf length was around 93% while A-B line accuracy was close to 97%, which indicated that the reconstructed model accuracy met the requirements of phenotypic parameters extraction. The 3D model can provide a new strategy for picking robot in spatial structure research domain.

    參考文獻
    相似文獻
    引證文獻
引用本文

劉剛,張雪,宗澤,郭彩玲.基于深度信息的草莓三維重建技術(shù)[J].農(nóng)業(yè)機械學(xué)報,2017,48(4):160-165,172. LIU Gang, ZHANG Xue, ZONG Ze, GUO Cailing.3D Reconstruction of Strawberry Based on Depth Information[J]. Transactions of the Chinese Society for Agricultural Machinery,2017,48(4):160-165,,172.

復(fù)制
分享
文章指標(biāo)
  • 點擊次數(shù):
  • 下載次數(shù):
  • HTML閱讀次數(shù):
  • 引用次數(shù):
歷史
  • 收稿日期:2016-07-26
  • 最后修改日期:
  • 錄用日期:
  • 在線發(fā)布日期: 2017-04-10
  • 出版日期:
文章二維碼