便携式动态玉米种子纯度识别仪的研制

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1、万方数据便携式动态玉米种子纯度识别仪的研制域RGB颜色特征，经过二维离散小波变换提取出玉米种子21维离散特征作为输入样本特征值，进行BP神经网络的多次迭代训练，筛除输入样本中的自交粒和杂粒得到纯度较高的识别样本。多次迭代方法大大提高了获取高纯度样本效率。该便携式动态玉米种子纯度识别仪实现动态玉米种子纯度识别自动化与智能化，解决了玉米种子纯度识别场地受限问题。传动系统设计定位准确，使玉米保持平放状态，可以准确采集玉米种子冠部及侧面图像。控制系统设计实现了传动系统与采集系统的协调配合完成采集图像的任务。软件处理系统开发与神经网络多次迭代方法在

2、玉米种子纯度识别与检测上取得良好效果。关键词：玉米种子；动态；纯度识别；传动系统；双目系统；控制系统；多次迭代II万方数据山东农业大学硕士学位论文DevelopmentofInstrumentforPortableDynamicMaizePurityRecognitionAbstractCornisanimportantfoodcrop，sourceoffeedandisthehighestproductionoftheworldfoodcrops．Seedpurityisatypicalconsistentdegreeofvariety

3、intermsofthecharacteristics．Theseedpurityidentificationisthecenterofthequalityinspectionforabatchofcornseedincharacteristicsbetweenindividualandindividualintypicalconsistencydegreeofauthenticityidentificationofinspectionandseeds．HybridCOrnseedbelongstotheseasonallystrongs

4、pecialproduct．Storageconditionislimitedleadtoseedinthepreservationprocessaffecttheactualqualityofseedsandthedecreaseofthesurvivalrateoftheseedcomseedsmixedphenomenonhasbecomeincreasinglyserious，varietydistinguishmoreandmoredifficult．Sothemaizeseedpurityidentificationandin

5、spectiontothereductionofhybridCOrnseedtopromotethehealthydevelopmentofmaizeseedindustryhasveryimportantsignificance．Currentlymaizepurityidentificationispro笋essedinalabenvironmentorfieldenvironmentandonsiteofseedcirculate，thereisnodynamicidentificationequipmentformaizepuri

6、ty．Tosolvethisproblem，developedadynamiccornseedpurityidentificationdevice，machinevisiontechnologyisappliedfordynamicmaizeseedimageacquisition，andimageprocessingmethodsisusedtoidentifymaizeseedpurity．Throughexperiments，theinstrumentcanseizeimageinformationofsampletobeteste

7、dquickly，identifymaizeseedpurityeffectively，anditbelongstheportable，adapttocirculatingsite，thishavesignificancetoseedpuritypromotionandcirculation．Follows：(1)Wedesignadynamicmaizeseedpurityidentificationequipment．Thedeviceincludestopandbottomcabinetdesign，transmissionmodu

8、ledesign，acquisitionmoduledesign，controlmoduledesign，barndoorsandcollectionbagsdesign．Dynamicmai