基于点云图的三维生猪模型重建技术  

3D pig model reconstruction technique based on point-cloud image

作　　者：程询 周乐乐 钱蓉 胡倩倩[2] 李小金 王重龙[3] CHENG Xun;ZHOU Lele;QIAN Rong;HU Qianqian;LI Xiaojin;WANG Chonglong(Institute of Agricultural Economics and Information,Anhui Academy of Agricultural Sciences,Hefei 230031,China;College of Animal Science,Anhui Science and Technology University,Fengyang 233100,China;Institute of Animal Husbandry and Veterinary Science,Anhui Academy of Agricultural Sciences,Hefei 230031,China)

机构地区：[1]安徽省农业科学院农业经济与信息研究所,安徽合肥230031 [2]安徽科技学院动物科学学院,安徽凤阳233100 [3]安徽省农业科学院畜牧兽医研究所,安徽合肥230031

出　　处：《安徽科技学院学报》2024年第5期58-64,共7页Journal of Anhui Science and Technology University

基　　金：安徽省农业科学院成果转化项目(2024YL029)。

摘　　要：目的:运用点云处理技术,重建生猪三维模型,为后期的生猪体尺自动测量和体质量估测研究提供必备条件,减少人工测量带来的疫病传播风险和应激反应,降低猪场经济损失。方法:开发多视角视频数据采集平台,实现2个深度相机分别从不同角度同步采集视频数据,经处理获取2个视角的点云数据,通过研究点云图的精准匹配技术,重建生猪三维模型。结果:通过对生猪点云图的精配准能够生成准确且完整的生猪三维模型,相较于粗配准的三维模型体尺测量结果提升了0.6%。结论:三维生猪模型为生猪后期的体尺测量提供一种高效、非接触式的解决方案,具有广阔的应用前景和潜在的实际价值。Objective:Using point-cloud processing technology,the 3D model of live pigs was reconstructed,which provided necessary conditions for the research of automatic body size measurement and weight estimation of live pigs in the later stage,reduced the risk of disease transmission and stress reaction caused by manual measurement,and reduced the economic loss of pig farms.Methods:The multi-view video data acquisition platform was developed to realize the simultaneous acquisition of video data from different angles by two depth cameras,and the point-cloud data of two perspectives was obtained after processing.The 3D model of live pigs was reconstructed by studying the accurate matching technology of point-cloud images.Results:The accurate and complete 3D model of live pigs could be generated by the fine registration of the point-cloud image of live pigs,and the body size measurement results were improved by 0.6%compared with the coarse registration of the 3D model.Conclusion:3D pig model provided an efficient and non-contact solution for body size measurement in the later stage of live pigs,which had broad application prospects and potential practical value.

关 键 词：点云图 配准 三维重建 生猪体尺 

分 类 号：S852.3[农业科学—基础兽医学]