东方瑰宝唐卡《普贤道场》高清数字化3D模型数据集

（一）实质性加工
数据清洗与优化：针对 OBJ 格式模型，结合唐卡 “平面构图 + 多层渲染” 特征，排查并删除绢本纹理扫描产生的冗余顶点、场景元素重叠面（如祥云与山水衔接处），减少数据量的同时保障渲染流畅度。
纹理映射调整：依据唐卡矿物颜料特性（如石青、石绿的色彩饱和度），校准纹理坐标，确保颜料纹理贴合模型表面，避免线条拉伸、色彩错位；按应用场景调整分辨率，学术研究保留 4K 纹理，大众传播压缩至 2K，平衡效果与性能。
（二）创造性劳动
模型精细化处理：用 MeshLab 软件消除扫描产生的叠面、交叉面，对普贤菩萨衣纹线条、道场细节进行平滑处理，在保留笔触质感的前提下优化三角面数量。
表面与纹理优化：运用 AI 自适应滤波算法处理扫描噪点，重点保留颜料晕染的渐变细节；人工校验颜料色彩偏差，结合实体唐卡色卡校准色值，确保模型纹理还原唐卡真实质感。

1. Substantive Processing
1.1 Data Cleaning and Optimization: For OBJ-format models, combined with the features of Thangka's "flat composition + multi-layer rendering", redundant vertices generated by silk texture scanning and overlapping faces of scene elements (e.g., the junction between auspicious clouds and landscapes) are identified and removed, reducing data volume while ensuring smooth rendering.
1.2 Texture Mapping Adjustment: Based on the properties of mineral pigments in Thangkas (e.g., color saturation of azurite and malachite), texture coordinates are calibrated to ensure that pigment textures fit the model surface, avoiding line stretching and color misalignment. The resolution is adjusted according to application scenarios: 4K textures are retained for academic research, and compressed to 2K for mass communication, balancing rendering effect and performance.

2. Creative Labor
2.1 Model Refinement: MeshLab software is used to eliminate overlapping and intersecting faces generated by scanning. The clothing pattern lines of Samantabhadra Bodhisattva and the details of the mandala are smoothed, and the number of triangular faces is optimized while preserving the texture of brushstrokes.
2.2 Surface and Texture Optimization: AI adaptive filtering algorithm is applied to process scanning noise, with focus on retaining the gradient details of pigment smudging. Manual verification of pigment color deviations is carried out, and color values are calibrated using physical Thangka color charts to ensure that the model textures restore the authentic texture of Thangkas.

搜集汇总

背景与挑战

背景概述

该数据集是东方瑰宝唐卡《普贤道场》的高清数字化3D模型，数据规模为301KB，旨在通过三维技术实现唐卡非遗技艺的复原与传承、佛教文化的学术研究、文物保护监测以及文化传播与文旅赋能。数据集经过实质性加工和创造性劳动，包括数据清洗、纹理映射调整和模型精细化处理，确保模型在保留唐卡艺术细节的同时优化渲染性能，适用于多场景应用。