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所属单位：计算机科学与技术学院/人工智能学院/软件学院

发表刊物：IEEE Trans Visual Comput Graphics

摘要：Bas-relief is characterized by its unique presentation of intrinsic shape properties and/or detailed appearance using materials raised up in different degrees above a background. However, many bas-relief modeling methods could not manipulate scene details well. We propose a simple and effective solution for two kinds of bas-relief modeling (i.e., structure-preserving and detail-preserving) which is different from the prior tone mapping alike methods. Our idea originates from an observation on typical 3D models, which are decomposed into a piecewise smooth base layer and a detail layer in normal field. Proper manipulation of the two layers contributes to both structure-preserving and detail-preserving bas-relief modeling. We solve the modeling problem in a discrete geometry processing setup that uses normal-based mesh processing as a theoretical foundation. Specifically, using the two-step mesh smoothing mechanism as a bridge, we transfer the bas-relief modeling problem into a discrete space, and solve it in a least-squares manner. Experiments and comparisons to other methods show that (i) geometry details are better preserved in the scenario with high compression ratios, and (ii) structures are clearly preserved without shape distortion and interference from details. © 1995-2012 IEEE.

ISSN号：1077-2626

是否译文：否

发表时间：2019-04-01

合写作者：Tian, Yang,Pang, Wai-Man,Wang, Charlie C. L.,Pang, Ming-Yong,Wang, Jun,汪俊,Qin, Jing,Heng, Pheng-Ann

通讯作者：魏明强,Tian, Yang,Wang, Charlie C. L.,Pang, Ming-Yong,Wang, Jun,Qin, Jing,魏明强