Multiobjective optimization for color display primary designs
Multiobjective optimization for color display primary designs
复制标题
彩色显示初级设计的多目标优化
DOI：
10.1117/1.jei.26.6.063013
复制
发表时间：
2017
影响因子：
1.1
通讯作者：
Gaurav Sharma
中科院分区：
文献类型：
--
作者：
Hao Xie;C. E. Rodríguez;Gaurav Sharma
摘要。彩色显示器的原色选择涉及不同理想属性之间的权衡，例如大色域，高光谱再现精度，最小的观察者同色异象和低功耗。单个属性的优化通常会将主要选择导向不同的方向。例如，色域的扩展有利于窄光谱带宽饱和原色，而最小化观察者同色通常有利于宽带原色。我们提出了一个多目标优化框架来表征三主和多主显示不同属性之间的权衡。框架不是单一的设计，而是确定可用的主要选择的完整范围，以最佳方式在不同属性的度量之间进行权衡。利用在我们提出的框架中获得的结果，我们探索了原色数量的影响，备选设计目标之间的关系，以及潜在的原色光谱特征。对于初始设计和初始选择，该策略比其他单目标优化方法更具信息性和综合性。此外，在提出的框架内，我们还考虑了选择多主显示器控制值的替代策略，并证明我们可以通过选择与期望目标一致的控制策略来更好地利用多主显示器的优势。具体地说，如果选择控制值来明确优化多观测器三刺激精度，观测器的异谱性会显著降低。
Abstract. The choice of primaries for a color display involves tradeoffs among different desirable attributes, such as a large color gamut, high spectral reproduction accuracy, minimal observer metamerism, and low power consumption. Optimization of individual attributes often drives primary choices in different directions. For example, expansion of color gamut favors narrow spectral bandwidth saturated primaries, and minimization of observer metamerism typically favors broadband primaries. We propose a multiobjective optimization framework to characterize the tradeoffs among the different attributes for three-primary and multiprimary displays. Instead of a single design, the framework determines the complete range of available primary choices that optimally negotiate the tradeoffs among the metrics for the different attributes. Using results obtained in our proposed framework, we explore the impact of the number of primaries, the relation between alternative design objectives, and the underlying primary spectral characteristics. For primary design and primary selection, the proposed strategy is more informative and comprehensive than alternative single objective optimization approaches. Furthermore, within the proposed framework, we also consider alternative strategies for selection of control values for multiprimary displays and demonstrate that we can better leverage the advantages of multiprimary displays by selecting the control strategy to align with desired objectives. Specifically, observer metamerism is significantly reduced if control values are selected to explicitly optimize multiobserver tristimulus accuracy.