Exact mathematical modeling of human color perception and applications to color weak compensation and color information processsing

人类色彩感知的精确数学建模及其在色彩弱补偿和色彩信息处理中的应用

• 批准号: 23500156
• 负责人: CHAO Jinhui
• 金额: $ 3.24万
• 依托单位: Chuo University
• 依托单位国家: 日本
• 项目类别: Grant-in-Aid for Scientific Research (C)
• 财政年份: 2011
• 资助国家: 日本
• 起止时间: 2011 至 2013
• 项目状态: 已结题
• 来源: https://kaken.nii.ac.jp/grant/KAKENHI-PROJECT-23500156/
• 关键词: 色弱補正; 色彩科学; ユニバーサルデザイン; ヒューマンインターフェース; 感性情報処理; 色彩情報処理; ヒューマンマシンインターフェース

We proposed a novel compensation algorithm for color-weakness based on a new, objective criterion using Riemann geometric properties of color spaces.The criterion is to match the color discrimination thresholds of average, normal observers and a colorweak observer such that he two groups of observers have the same color-difference experience.In order to describe the color spaces as Riemann spaces, we measured color discrimination thresholds data for color-weak and color-normal observers.A 1D compensation and simulation of color-weakness is shown on confusion lines in the LMS space. The 2D and 3D compensations and simulations are proposed in chromaticity planes and full color spaces in the two following ways. First, we show a local affine isometry which can be estimated from the metric tensor defined by the discrimination thresholds data. Second, the Riemann normal coordinates are built using geodesics grids. Performance of the proposed methods are confirmed by subjective evaluations.

基于色彩空间的黎曼几何特性，提出了一种新的色弱补偿算法。标准是匹配平均观察者，正常观察者和色弱观察者的颜色辨别阈值，使两组观察者具有相同的色差体验。为了将色彩空间描述为黎曼空间，我们测量了色彩弱和色彩正常观察者的色彩辨别阈值数据。在LMS空间中给出了色差的一维补偿和仿真。提出了在色度平面和全彩色空间下的二维和三维补偿和仿真方法。首先，我们展示了一个局部仿射等距，它可以由判别阈值数据定义的度量张量估计。其次，利用测地线网格建立黎曼法向坐标。通过主观评价，验证了所提方法的有效性。

项目成果

Color-Weakness Compensation using Riemann Normal Coordinates

使用黎曼法线坐标进行色弱补偿

• 发表时间: 2012
• 期刊: Proceedings of ISM2012, 2012 IEEE International Symposium on Multimedia
• 作者: Satoshi Oshima;Rika Mochizuki;Reiner Lenz and Jinhui Chao
• 通讯作者: Reiner Lenz and Jinhui Chao

Color-Weakness Compensation using Riemann Normal Coordinate

使用黎曼法线坐标进行色弱补偿

• 发表时间: 2012
• 期刊: Proceedings of ISM2012, 2012 IEEE International Symposium on Multimedia
• 作者: Satoshi Oshima;Rika Mochizuki;Reiner Lenz and Jinhui Chao
• 通讯作者: Reiner Lenz and Jinhui Chao

Preference for Color-Enhanced Images Assessed by Color Deficiencies

• DOI: 10.1002/col.21795
• 发表时间: 2014-06-01
• 期刊: COLOR RESEARCH AND APPLICATION
• 影响因子: 1.4
• 作者: Chen, Yi-Chun;Guan, Yunge;Ayama, Miyoshi
• 通讯作者: Ayama, Miyoshi

Invariants of 3D images and face authentication

3D 图像和人脸认证的不变量

• 发表时间: 2013
• 期刊: Proceedings, 2013 International Workshop on Smart Info-Media Systems in Asia (SISA2013)
• 作者: Hiroto Sasaki;Jinhui Chao
• 通讯作者: Jinhui Chao

Exact compensation of color-weakness with discrimination threshold matching

通过辨别阈值匹配精确补偿色弱

• 发表时间: 2011
• 期刊: HCI International 2011 Conference, Universal Access in Human-Computer Interaction. Applications and Services Lecture Notes in Computer Science
• 作者: Rika Mochizuki;Satoshi Oshima;Reiner Lenz;Jinhui Chao
• 通讯作者: Jinhui Chao