2006年5月16日至17日，安大略省渥太华市、加拿大第一分部和ISCC联合举办了一次研讨会，以庆祝该组织成立75周年 CIE 1931标准色度观察器，讨论了许多已经取得的进展 自推出以来，了解色度学和颜色学的现状 并为今后的工作方向提供指导。会议分为七个主要会议:标准观察者颜色匹配功能仪器和标准时间和空间问题标准观察者颜色外观的应用颜色差异颜色管理讨论，并包括海报会议。 贯穿整个讨论的总主题，总结了本次会议的热点话题 专题讨论会的主题是需要更全面的颜色外观和色差 模型。目前的模型只考虑了相对较少的影响因素 可能会影响对象和图像的外观。建议对模型进行修改 包括空间和时间因素的影响，适用于所有 从明视到暗视的照明水平，并考虑正常和 视觉功能的变化以及随着年龄的增长视觉功能的变化。 第二个主题是评估视觉外观和视觉差异，或者更具体地说，是 测量表面的其他属性，如光泽、半透明性和纹理。

16-17 May 2006, Ottawa, Ontario, CanadaCIE Division 1 and ISCC jointly organized a symposium to celebrate the 75th anniversary of the CIE 1931 Standard Colorimetric Observer, to discuss the many advances that have been made since its introduction, to understand the current state of colorimetry and colour appearance, and to provide guidance on directions for future work.The meeting was divided into seven main sessions:Standard ObserverColour Matching FunctionsInstruments and StandardsTemporal and Spatial IssuesApplication of the Standard ObserverColour AppearanceColour DifferencesColour ManagementDiscussionand included a Poster Session.A general theme throughout the discussion, that summarized the hot topics of the symposium, was the need for more comprehensive colour appearance and colour difference models. The current models take into account only a relatively small number of factors that can affect the appearance of objects and images. It was recommended that models be developed that include the effect of spatial and temporal factors, that are applicable to all levels of illumination from photopic to scotopic, and that take into account both normal variations in visual functions and changes in visual functions with aging.A second theme was the assessment of visual appearance and visual differences, or more specifically, the measurement of other attributes of surfaces such as gloss, translucency and texture.