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作 者:詹勇[1,2] 马红 ZHAN Yong;MA Hong(Chongqing Survey Institute,Chongqing 401121,China;Intelligent Urban Space(CIM+)Innovation Center,Chongqing 401121,China;Chongqing Geographic National Condition Monitoring Engineering Research Center,Chongqing 401121,China)
机构地区:[1]重庆市勘测院,重庆401121 [2]智能城市空间(CIM+)创新中心,重庆401121 [3]重庆市地理国情监测工程技术研究中心,重庆401121
出 处:《城市勘测》2023年第5期38-41,共4页Urban Geotechnical Investigation & Surveying
基 金:2022年重庆英才计划项目(cstc2022ycjh-bgzxm0270):复杂山地环境下交通数字孪生体构建关键技术与应用。
摘 要:不同批次倾斜摄影实景三维模型因航摄条件不同易产生色彩、明暗度不一致等问题,传统做法是对原始倾斜影像统一匀光匀色后再重新建模,工作量大。本文实现了一种面向实景三维模型的实时匀光匀色流程,基于可视化三维平台,解析模型结构基础上,利用着色器编程实现参数可调整的匀光匀色算法,用户通过不断调整参数,实时获得不同匀光匀色结果。实验证明,该方法流程简洁、交互性强,极大提升了实景三维模型的匀光匀色效率。Due to different aerial photographing conditions,different batches of tilt photographing real scene 3D models are prone to problems such as inconsistent color and lightness.The traditional method is to uniformly homogenize the original tilt images and then remodel them,which requires a large workload.In this paper,a real-time light and color blending work flow is proposed.On the basis of analyzing the model structure,a shader programming method is used to establish a light and color blending algorithm model,and the dynamic adjustment of parameters is realized based on the visual 3D platform.The results of light and color blending of the three-dimensional model are obtained in real time.Experiments show that this method has a simple process and strong interactivity,which greatly improves the light and color blending efficiency of the real three-dimensional model.
关 键 词:倾斜摄影 实景三维模型 匀光匀色 GPU编程 三维平台
分 类 号:P208[天文地球—地图制图学与地理信息工程]
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