2023年A题优秀论文.pdf

1、有哪些信誉好的足球投注网站（book118）网站文档一经付费（服务费），不意味着购买了该文档的版权，仅供个人/单位学习、研究之用，不得用于商业用途，未经授权，严禁复制、发行、汇编、翻译或者网络传播等，侵权必究。。
2、本站所有内容均由合作方或网友上传，本站不对文档的完整性、权威性及其观点立场正确性做任何保证或承诺！文档内容仅供研究参考，付费前请自行鉴别。如您付费，意味着您自己接受本站规则且自行承担风险，本站不退款、不进行额外附加服务；查看《如何避免下载的几个坑》。如果您已付费下载过本站文档，您可以点击这里二次下载。
3、如文档侵犯商业秘密、侵犯著作权、侵犯人身权等，请点击“版权申诉”（推荐），也可以打举报电话：400-050-0827(电话支持时间：9:00-18:30)。

Team#apmcm2309364

TeamNumber:apmcm2309364

ProblemChosen:A

2023APMCMsummarysheet

InordertocopewithApplepickingrobotshavelowrecognitionrate,slowspeedandlowaccuracy

inimagerecognition.weusetheimprovedHoughcircletransformationmethodtoestablishthefirst

typeofmodelforidentifyingapples.Tobetteridentifyapplesmoreaccuratelyincomplexsituations,

weextractedthefeaturevalueinformationofapplesthroughCNNconvolutionalnetwork,conducted

deeplearningontheprovidedappleimages,andestablishedasecondtypeofapplerecognition

modelbasedonYOLOv4andVGG19.Inaddition,whencalculatingthequalityoftheapplesinthe

image,weinventedabrightness-estimationmethodourselvestomakethecalculatedapplequality

moreconsistentwiththeactualsituation.

Question1requiresustoidentifythenumberofapplesintheimage.WeuseLabcolorspace

conversionandGaussianfilteringmethodtopreprocesstheimage.Takingadvantageofthecharac-

teristicthatripeapplesarered,wedrewthea*channelmapintheLabcolorspaceandbinarizedit.

Then,takingadvantagethatapplescanbeapproximatelyregardedascirclesinatwo-dimensional

plane,weusedanimprovedHoughcircletransformationmethod,andthenumberofapplesidenti-

fiedinAppendix1was3094.

Questions2and3requireustoidentifythepositionandmaturityofapplesintheimage.We

usedtheYOLOv4networkintheCNNconvolutionalnetworkfordeeplearning,inputtheimage

dataofartifitialframeselectionandrecognitionformodeltraining,andusedthetrainedThemodel

wasusedforidentification,anditwasfoundthattheresultsoftheapplepositionweresimilartothe

resultsofthefirstmodel,indicatingthatthemodelwaswelltrained.Whencalculatingthematurity

inquestion3,wealsodefinedamaturityfunctionHtoquantifythematurityoftheapples.

Question4requiresustocalculatethemassofapples.Wefurtherconsideredtheimaging

principleof”la

各类数学建模竞赛-文档，及优秀论文分享

更多 >