轻量化室内透视贴图的自适应生成方法  

A method for adaptively generating lightweight interior perspective maps

作　　者：李游 姚萌萌 魏智威 赵志刚 汤圣君 郭仁忠 LI You;YAO Mengmeng;WEI Zhiwei;ZHAO Zhigang;TANG Shengjun;GUO Renzhong(Research Institute for Smart City,School of Architecture and Urban Planning,Shenzhen University,Shenzhen 518060,China;Guangdong Laboratory of Artificial Intelligence and Digital Economy(SZ),Shenzhen 518107,China)

机构地区：[1]深圳大学建筑与城市规划学院智慧城市研究院,广东深圳518060 [2]人工智能与数字经济广东省实验室(深圳),广东深圳518107

出　　处：《测绘通报》2025年第2期83-88,共6页Bulletin of Surveying and Mapping

基　　金：国家重点研发计划(2022YFC3800600);广东省自然科学基金-面上项目(2023A1515010717)。

摘　　要：针对传统室内透视贴图获取成本高、纹理适配性差等问题,本文提出了一种轻量化透视贴图的自适应生成方法。该方法首先利用建筑信息模型精确的几何精度及丰富的纹理色彩,融合部件空间与语义信息对室内场景进行重组和划分;然后结合划分场景和可见性约束策略确定纹理投影平面,生成各划分空间的平面纹理图并保持家具部件的立体感;最后对平面纹理进行拼接以获取与原始模型内景一致的透视贴图,并通过试验对比了透视贴图与原始模型在建筑物内部景观的实时渲染效率和可视化效果。结果表明,本文方法能够有效生成特定场景的室内透视贴图,并且能够取得与原始模型相似的视觉体验。To address the problems of large computation and low rendering efficiency in real-time rendering of the interior spaces of large-scale building information models,this paper proposes an adaptive perspective map generation method for lightweight visualization.The method reconstructs the solid parts of indoor scenes by integrating the spatial and semantic information of part divisions.It also designs a projection plane calculation method with visibility constraints to determine the texture projection plane,which better generates the plane texture map of each division space and maintains the three-dimensional sense of furniture parts.Finally,the plane textures are stitched together to obtain a perspective map similar to the original model interior.Through a design experiment,the real-time rendering efficiency and visualization effect of the perspective mapping were compared with the original model in the interior landscape of the building.The results show that the proposed method can achieve a visual experience similar to the original model while significantly reducing resource consumption,and can provide effective technical support for lightweight visualization and high-fidelity rendering of city-level BIM data.

关 键 词：建筑信息模型 内部映射 轻量可视化 室内透视贴图 纹理贴图 

分 类 号：P208[天文地球—地图制图学与地理信息工程]