Bas-relief generation from point clouds based on normal space compression with real-time adjustment on CPU

IF 2.5 4区计算机科学 Q2 COMPUTER SCIENCE, SOFTWARE ENGINEERING Graphical Models Pub Date : 2021-01-01 DOI:10.1016/j.gmod.2021.101096

Jianhui Nie , Wenkai Shi , Ye Liu , Hao Gao , Feng Xu , Zhaochen Zhang

引用次数: 2

Abstract

This paper presents a bas-relief generation algorithm from scattered point cloud directly. Compared with the popular gradient domain methods for mesh surface, this algorithm takes normal vectors as the operation object, making it independent of topology connection, thus more suitable for point clouds and easier to implement. By constructing linear equations of the bas-relief height and using the solution strategy of the subspace, this algorithm can adjustment the bas-relief effect in real-time relying on the computing power of a consumer CPU only. In addition, we also propose an iterative solution to generate a bas-relief model of a specified height. The experimental results indicate that our algorithm provides a unified solution for generating different types of bas-relief with good saturation and rich details.

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基于标准空间压缩和CPU实时调整的点云浅浮雕生成

本文提出了一种直接从散射点云生成浅地形的算法。与目前流行的网格表面梯度域方法相比，该算法以法向量为运算对象，不依赖于拓扑连接，更适合于点云，更易于实现。该算法通过构造浅浮雕高度的线性方程，采用子空间的求解策略，仅依靠一个消费级CPU的计算能力，即可实时调整浅浮雕效果。此外，我们还提出了一种迭代解来生成指定高度的浅地形模型。实验结果表明，该算法为生成饱和度好、细节丰富的不同类型的浅地形提供了统一的解决方案。

本文章由计算机程序翻译，如有差异，请以英文原文为准。

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来源期刊

Graphical Models 工程技术-计算机：软件工程

CiteScore

3.60

自引率

5.90%

发文量

审稿时长

47 days

期刊介绍： Graphical Models is recognized internationally as a highly rated, top tier journal and is focused on the creation, geometric processing, animation, and visualization of graphical models and on their applications in engineering, science, culture, and entertainment. GMOD provides its readers with thoroughly reviewed and carefully selected papers that disseminate exciting innovations, that teach rigorous theoretical foundations, that propose robust and efficient solutions, or that describe ambitious systems or applications in a variety of topics. We invite papers in five categories: research (contributions of novel theoretical or practical approaches or solutions), survey (opinionated views of the state-of-the-art and challenges in a specific topic), system (the architecture and implementation details of an innovative architecture for a complete system that supports model/animation design, acquisition, analysis, visualization?), application (description of a novel application of know techniques and evaluation of its impact), or lecture (an elegant and inspiring perspective on previously published results that clarifies them and teaches them in a new way). GMOD offers its authors an accelerated review, feedback from experts in the field, immediate online publication of accepted papers, no restriction on color and length (when justified by the content) in the online version, and a broad promotion of published papers. A prestigious group of editors selected from among the premier international researchers in their fields oversees the review process.