LOD在协同设计和信息安全中的应用

Jian Mao, Shiqing Liu
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引用次数: 1

摘要

CAD模型在很多场合需要通过网络进行传输,必须保证信息的安全。提出了一种基于渐进式网格的传动框架。介绍了细节级描述方法(level-of-detail, LOD),即在保证图像质量或几何精度的前提下,利用场景中物体的不同分辨率细节,减少用于渲染、存储、传输和后续处理的多边形数量的方法。利用LOD结构树,根据带宽和用户需求自动传输最合适分辨率的模型。传输数据量减少,分辨率可自由调节。并结合Christopher基于角色的查看信封信息保护,保证了协同设计环境下的信息安全,降低了多组织合作环境下重要数据的泄露风险。
本文章由计算机程序翻译,如有差异,请以英文原文为准。
Application of LOD in collaborative design and information security
CAD models are required to transmit through network in many occasions, and the information security must be ensured. A transmission framework depending on progressive mesh is proposed in this paper. The description method level-of-detail (LOD) is introduced, which is a method to reduce the number of polygons for rendering, storage, transmission and following processing by using different-resolution details for the objects in a scene, while ensuring the image quality or geometrical accuracy. By using LOD structure tree, the model with the most appropriate resolution is transmitted automatically according to the bandwidth and the requirement of users. The data volume of transmission is reduced and the resolution is adjusted freely. Further more, by combining Christopher's role-based viewing envelopes for information protection, the information security in collaborative design environment is ensured, and the leakage risk of important data is reduced in the muti-organization cooperation environment.
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