2023年11月-2025年8月四川成都文物高保真多通道BRDF材质模型数据集

本数据集是国家重点研发计划“文物数字资源快速高效采集关键技术与设备研发”项目中“便携式文物彩色三维扫描软硬件研制”课题的最终输出成果，核心内容为前述“高分辨率多视角纹理影像数据集”对应的文物高保真三维数字模型，可直接应用于科研、展示与创作场景。数据模型生成以数据集一的高质量输入影像为基础，通过融合运动恢复结构、稠密点云重建与神经辐射场渲染等先进技术流程，实现非朗伯体文物几何形态与复杂光学材质的同步高精度重建；每个模型都包含四大核心要素：高细节三角网格模型（.obj格式，几何精度经验证优于0.1毫米，精准表征文物几何形态）、整合空间变化双向反射分布函数参数的物理材质定义文件（.mtl格式，定义文物材质光学属性）、高分辨率纹理贴图（.png格式，含漫反射、金属粗糙度、法线及高光通道，还原文物表面细节）、匹配原始采集光照环境的高动态范围环境贴图（.hdr格式，保障渲染场景真实性），各要素协同支撑基于物理的渲染需求。数据质量经量化评估，模型渲染结果与真实照片的结构相似性（SSIM≥0.85）和感知差异（LPIPS≤0.15）均表现优异，视觉保真度卓越，已在数字博物馆虚拟展陈原型搭建、文物虚拟修复实验中完成初步应用验证。本数据集总容量约为1.69 GB，采用OBJ、MTL、PNG、HDR等通用标准格式存储，可适配Blender、Unity、Unreal Engine等主流三维软件及渲染引擎，未来在数字博物馆建设、文物保护修复研究等领域具有广阔应用前景，为文物数字资源的高效利用提供高质量基础支撑。

This dataset is the final output achievement of the topic "Development of Portable Color 3D Scanning Software and Hardware for Cultural Relics" under the project "Key Technologies and Equipment R&D for Rapid and Efficient Collection of Cultural Relics Digital Resources" of the National Key R&D Program of China. Its core content is the high-fidelity 3D digital models of cultural relics corresponding to the aforementioned "high-resolution multi-view texture image dataset", which can be directly applied to research, display and creation scenarios. The data models are generated based on the high-quality input images from Dataset 1, and through advanced technical workflows such as integrating Structure from Motion (SfM), dense point cloud reconstruction and Neural Radiance Fields (NeRF) rendering, simultaneous high-precision reconstruction of the geometric morphology and complex optical materials of non-Lambertian cultural relics is achieved. Each model includes four core elements: 1. High-detail triangular mesh models (in ."obj" format, with geometric accuracy verified to be better than 0.1 mm, accurately representing the geometric morphology of cultural relics); 2. Physical material definition files (in ."mtl" format) integrating spatially varying bidirectional reflectance distribution function (BRDF) parameters, which define the optical properties of cultural relic materials; 3. High-resolution texture maps (in ."png" format, with diffuse, metallic roughness, normal and specular channels to restore the surface details of cultural relics); 4. High-dynamic range (HDR) environment maps matching the original collected lighting environment, ensuring the realism of rendered scenes. All these elements work together to support physically based rendering (PBR) requirements. The data quality has been quantitatively evaluated: the structural similarity (SSIM ≥ 0.85) and perceptual difference (LPIPS ≤ 0.15) between the model rendering results and real photos are both excellent, with outstanding visual fidelity. It has completed preliminary application verification in the construction of virtual exhibition prototypes for digital museums and virtual restoration experiments of cultural relics. This dataset has a total capacity of approximately 1.69 GB, and is stored in universal standard formats such as OBJ, MTL, PNG and HDR. It is compatible with mainstream 3D software and rendering engines such as Blender, Unity and Unreal Engine. It has broad application prospects in future fields such as digital museum construction and research on cultural relic protection and restoration, providing high-quality basic support for the efficient utilization of cultural relic digital resources.

搜集汇总

背景与挑战

背景概述

该数据集是2023年11月至2025年8月期间四川成都文物高保真多通道BRDF材质模型集合，来源于国家重点研发计划项目，专注于非朗伯体文物的高精度数字化。数据集包含15个独立对象的3D模型，采用OBJ、MTL、PNG、HDR等标准格式，几何精度优于0.02mm，纹理分辨率不低于300DPI，并通过结构相似性（SSIM≥0.85）和感知差异（LPIPS≤0.15）确保高视觉保真度，适用于数字博物馆、文物保护等科研与展示场景。