自适应颜色映射及其在空洞演化可视化中的应用

doi:10.11772/j.issn.1001-9081.2019111889

计算机应用 ›› 2020, Vol. 40 ›› Issue (6): 1783-1792.DOI: 10.11772/j.issn.1001-9081.2019111889

• 虚拟现实与多媒体计算 • 上一篇下一篇

自适应颜色映射及其在空洞演化可视化中的应用

乔洁雯, 陈伟

江南大学数字媒体学院，江苏无锡 214000

收稿日期:2019-11-06 修回日期:2020-01-06 出版日期:2020-06-10 发布日期:2020-06-18
通讯作者: 陈伟(1986—)
作者简介:乔洁雯(1994—)，女，江苏无锡人，硕士研究生，主要研究方向：计算机图形学、颜色视觉感知.陈伟(1986—)，男，江苏宝应人，副教授，博士，CCF会员，主要研究方向：计算机图形学.
基金资助:
国家重点研发计划项目(2017YFB02023)；国家自然科学基金资助项目(61602213，61772013)。

Adaptive color mapping and its application in void evolution visualization

QIAO Jiewen, CHEN Wei

Digital Media School, Jiangnan University, Wuxi Jiangsu 214000, China

Received:2019-11-06 Revised:2020-01-06 Online:2020-06-10 Published:2020-06-18
Contact: CHEN Wei, born in 1986, Ph. D., associate professor. His research interests include computer graphics.
About author:QIAO Jiewen, born in 1994, M. S. candidate. Her research interests include computer graphics, color visual perception.CHEN Wei, born in 1986, Ph. D., associate professor. His research interests include computer graphics.
Supported by:
National Key Research and Development Program of China (2017YFB02023), the National Natural Science Foundation of China (61602213, 61772013).

摘要/Abstract

摘要： 为了提升材料空洞演化的可视化效果，提出一种基于数据特征的自适应颜色映射方法。首先，在CIELAB颜色空间中选取若干控制点，形成初始颜色路径；然后，考虑数据特征值占比，根据色差均匀、亮度一致性等约束条件来优化控制点的位置，调整颜色路径，以满足控制点自适应跟随数据的要求；最后，通过均衡化算法来重映射感知差异总和的分布，优化颜色映射的感知均匀性来形成最终颜色映射图。实验结果表明，与以往仅考虑颜色空间、忽略数据多样性的传统颜色映射方法相比，所提方法充分考虑颜色配比、控制点个数、自适应因素，提升了可视化结果的特征可辨识性，并且保证了空洞演化可视化结果的感知均匀性，提高了可视化结果的准确性，缩减了观测有效信息所需时长。

关键词: 颜色映射, 自适应, 控制点, 颜色路径, 感知均匀, 空洞演化, 可视化

Abstract: In order to improve the visualization effect of the void evolution of materials, an adaptive color mapping method based on data characteristics was proposed. Firstly, a number of control points were selected in the CIELAB color space to form an initial color path. Then, based on the proportion of the data characteristic values, the positions of control points were optimized and the color path was adjusted according to the constraints such as uniformity of color difference and consistency of brightness, so as to meet the requirement of control points following the data adaptively. Finally, the distribution of the perceptual difference sum was remapped by the equalization algorithm, and the perceptual uniformity of the color mapping was optimized to form the final color map. The experimental results show that, compared with traditional color mapping methods which only consider the color space and ignore the diversity of data, the proposed adaptive color mapping method has better identifiability of the characteristics of visualization results by fully considering the color proportion, the number of control points and self-adaptation, and guarantees the perceptual uniformity of the visualization results of the void evolution, improving the accuracy of visualization results and reduces the time required to observe effective information.

Key words: color mapping, adaptive, control point, color path, perceptual uniformity, void evolution, visualization

中图分类号:

TP391.41

乔洁雯, 陈伟. 自适应颜色映射及其在空洞演化可视化中的应用[J]. 计算机应用, 2020, 40(6): 1783-1792.

QIAO Jiewen, CHEN Wei. Adaptive color mapping and its application in void evolution visualization[J]. Journal of Computer Applications, 2020, 40(6): 1783-1792.

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自适应颜色映射及其在空洞演化可视化中的应用

Adaptive color mapping and its application in void evolution visualization

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