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

基于邊緣曲率分析的重疊番茄識別
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)資助項目(2006AA10Z257);國家自然科學(xué)基金資助項目(61105024)


Recognition of Overlapping Tomatoes Based on Edge Curvature Analysis
Author:
Affiliation:

Fund Project:

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

    為提高重疊番茄的識別正確率,提出了一種基于邊緣曲率分析的重疊番茄識別方法。該方法從二值圖像中提取番茄區(qū)域的邊緣,并且為進(jìn)一步計算出邊緣點曲率,對邊緣點按逆時針方向進(jìn)行排序。計算出邊緣點曲率后,剔除掉曲率異常的邊緣點。最后通過對各剩余邊緣分別進(jìn)行圓回歸,實現(xiàn)重疊番茄的識別。為減小作業(yè)環(huán)境光照變化及枝葉遮擋等因素給識別帶來的影響,采用了基于歸一化色差的固定閾值分割方法,6條邊緣識別準(zhǔn)則及3條圓回歸準(zhǔn)則。119幅圖像的試驗結(jié)果表明,存在輕微遮擋的重疊番茄識別正確率為90.9%;遮擋率大于25%且小于50%時,識別正確率為76.9%;遮擋率大于50%時,識別正確率為23%。

    Abstract:

    In order to improve the recognition accuracy, a method of overlapping tomatoes recognition based on curvature analysis of edge points was presented. Edges of tomatoes were extracted from binary image at first. Then curvature values could be acquired after edge points were sorted counterclockwise. The edge points with abnormal curvature values were abandoned. After circle regression for remaining edges, overlapping tomatoes could be recognized. In order to decrease the negative impact on recognition aroused from environmental lighting variation and occlusion caused by leaves and branches, threshold segmentation method based on normalization aberration, 6 rules for edge recognition and 3 rules for circle regression were adopted. The experimental results of 119 images showed that the recognition accuracy for overlapping tomatoes with slight occlusion was 90.9%, it was 76.9% when the occlusion rate was between 25% and 50%, and it was 23% when the occlusion rate was larger than 50%.

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

項榮,應(yīng)義斌,蔣煥煜,饒秀勤,彭永石.基于邊緣曲率分析的重疊番茄識別[J].農(nóng)業(yè)機(jī)械學(xué)報,2012,43(3):157-162. Xiang Rong, Ying Yibin, Jiang Huanyu, Rao Xiuqin, Peng Yongshi. Recognition of Overlapping Tomatoes Based on Edge Curvature Analysis[J]. Transactions of the Chinese Society for Agricultural Machinery,2012,43(3):157-162.

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:
  • 最后修改日期:
  • 錄用日期:
  • 在線發(fā)布日期: 2012-03-17
  • 出版日期:
均质袋架| 碎石冲击试验机| 无缝传输带| 小动物脑电测量仪| 电子万能拉力试验机| C80微量热仪| 重力搅拌机| 数字示波器TDS3034C| 无线数显水平仪| 接地电阻测试仪| 洗菜机切菜机| 低烟无卤线槽| 机床设备翻新| 收购立体停车| 洗涤机械| 手持电能质量测量仪| 无线温湿度变送器| 多盘式真空过滤机| 气体报警器| 工业变倍镜头| 数字旋转粘度计| thorlabs镜片| 甲级防雷检测仪| 磁粉沉淀池| 维萨拉露点仪| 五格测温纸| 专注提供国外机电设备及配件| 环保用电监测| 智能轴承加热器| 玉米糁加工设备.玉米脱皮制糁机华豫万通粮机| MPM水平测试仪| 爱发科真空泵油| 电子悬臂梁冲击试验机| SCHMERSAL施迈赛| 大米外观品质检测仪| 能耗云平台| 穿孔铝板复合| 电杆荷载位移| 气动真空上料机| Allevi3D生物打印机| 引进型流量计|