Real-time bas-relief generation from a 3D mesh

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• 作者：Yu-Wei Zhang^a ; ^b ; ^{zhangyuwei_scott@126.com} ; Yi-Qi Zhou^a ; Xiao-Feng Zhao^a ; Gang Yu^a
• 关键词：Digital bas-relief ; Detail preservation ; Bilateral filtering ; Height domain compression
• 刊名：Graphical Models
• 出版年：2013
• 出版时间：January, 2013
• 年：2013
• 卷：75
• 期：1
• 页码：2-9
• 全文大小：1248 K

文摘

Most of the existing approaches to bas-relief generation operate in image space, which is quite time-consuming in practice. This paper presents a different bas-relief generation algorithm based on geometric compression and starting from a 3D mesh input. The feature details are first extracted from the original objects using a spatial bilateral filtering technique. Then, a view-dependent coordinate mapping method is applied to build the height domain for the current view. After fitting the compression datum plane, the algorithm uses an adaptive compression function to scale and combine the Z values of the base mesh and the fine details. This approach offers control over the level of detail, making it flexible for the adjustment of the appearance of details. For a typical input mesh with 100 k triangles, this algorithm computes a bas-relief in 0.214 s.