融合局部感知增强的投篮上肢动作分解与高精度识别算法

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关键词：HRNet模型；双流金字塔；图卷积网络；时间卷积网络；人体动作识别；图像分析中图分类号：TN911.73-34；TP391 文献标识码：A 文章编号：1004-373X（2025）18-0119-06

Shooting upper limb motion decomposition and high-precision recognition algorithm integrating local perception enhancement

RENYufei，LIUHailin² （1.Shaanxi College ofCommunications Technology，Xi'an710o18，China; 2.Shaanxi Transportation ElectronicEngineering TechnologyCo.，Ltd.，Xi’an71Oo68，China）

Abstract：Inalusion tothe problems of jointoclusionandlarge receptive field existing in traditional motion recognition algorithmswhenprocesing basketballtraining images，ahigh-precisionupperlimbmotiondecompositionrecognitionmodel integratinglocalperceptionenhancementisproposed.Themodelcanextracttheglobalstructuralfeaturesofthehumanbodyby meansof lightweighthigh-resolution network （HRNet）branches，andcombinewithatwo-streampyramid module toenhancelocal jointperceptionability.Inthespaceflow，thecavityconvolutionisusedtoexpandthehandreceptivefield，andinthetieflow， theopticalflowisusedtocapturetherelativemotionofthegolfer，significantlyimprovingthehandpositioningaccuracyinthe occluded scene.Atthesametime，thespatiotemporaldecompositionmoduleisalsodesignedinthemodel toaalyzethespatial andtemporalcharacteristics，constrainthenetworkfocusandlearnthemotionconsistencybetwen frames，andmakingthedata procesing processmorerobust.Theadaptiveweighting elementsare introduced intothemodeltooutput high-precision joint pointcoordinates.The experimental testing results show that themAP @0.5 ofthe proposed model can reach 86.9%， the F1 value of action classification is 95.3% ，whichisbetter than the current mainstream algorithm.and thekeyframe detectionrateis 91.1% ，theframeratecanreach47f/s，andthereal-timeperformanceisgood，whichfullproves thatthe modelcanprovide reliable technical means for basketball training and intelligent analysis of events.

Keywords：HRNet model； two stream pyramid; graph convolutional network；time convolutional network；human motion recognition; image analysis

0 引言

在篮球运动中，完美的投篮动作取决于压腕角度、手指对球的控制以及肘关节在篮球出手瞬间的伸展角度与轨迹。（剩余6516字）