1.1 本指南定义了一组面部组件、特征和描述符，以便在面部形态比较过程中加以考虑（请参阅FISWG面部图像比较最佳实践-形态学分析特征列表）。 1.2 这组面部组件、特征和描述符描述了图像之间可见和可比较的面部特征。 1.3 本指南定义了应用于面部比较的一组标准面部组件、特征和描述符。 1.4 本指南并不定义比较过程本身，仅定义在此类比较过程中使用的特征集。 1.5 本指南未定义分类系统，以约束这些描述符在应用于样本时的表达方式。 1.6 本标准并非旨在解决与其使用相关的所有安全问题（如有）。本标准的用户有责任在使用前制定适当的安全、健康和环境实践，并确定监管限制的适用性。 1.7 本国际标准是根据世界贸易组织技术性贸易壁垒（TBT）委员会发布的《关于制定国际标准、指南和建议的原则的决定》中确立的国际公认标准化原则制定的。 ====意义和用途====== 4.1 用于面部比较的形态学分析应使用一致的术语和方法。本指南提供了一套标准的面部组件、特征和描述符，作为一个框架，与面部图像比较的系统分析方法结合使用。 4.2 该集合中面部组件的顺序是从面部的顶部到底部，而不是按重要性或优先级排列。 4.3 在本指南中，除非另有规定，否则术语“面部”通常包括面部、头部和颈部。 4.4 本指南中有几个例子使用了术语“距离”或“近似距离”。当本指南中使用该术语时，其并不意味着应确定该尺寸的精确值，而是指该尺寸与表面总宽度或高度相比的相对尺寸（如果未另行规定）。在本指南中，由于其局限性，建议根本不要使用光人体测量法。

1.1 This guide defines a set of facial components, characteristics, and descriptors to be considered during a morphological facial comparison (see FISWG Best Practices for Facial Image Comparison Feature List for Morphological Analysis). 1.2 This set of facial components, characteristics, and descriptors describes the facial features that may be visible and comparable between images. 1.3 This guide defines a standard set of facial components, characteristics, and descriptors that should be used for facial comparison. 1.4 This guide does not define the comparison process itself, just the feature set to be used during such comparisons. 1.5 This guide does not define a classification system to constrain how those descriptors shall be articulated as applied to samples. 1.6 This standard does not purport to address all of the safety concerns, if any, associated with its use. It is the responsibility of the user of this standard to establish appropriate safety, health, and environmental practices and determine the applicability of regulatory limitations prior to use. 1.7 This international standard was developed in accordance with internationally recognized principles on standardization established in the Decision on Principles for the Development of International Standards, Guides and Recommendations issued by the World Trade Organization Technical Barriers to Trade (TBT) Committee. ====== Significance And Use ====== 4.1 Morphological analysis used for facial comparison should utilize consistent terminology and methodology. This guide provides a standard set of facial components, characteristics, and descriptors to be used as a framework in conjunction with a systematic method of analysis for facial image comparison. 4.2 The order of the facial components in this set is presented from the top of the face to the bottom, not in order of importance or priority. 4.3 Within this guide, the term “face” generally refers to the face, head, and neck inclusively unless specified otherwise. 4.4 There are several instances in this guide in which the term “distance” or “approximate distance” is used. When this term is used in this guide, it does not mean to imply that the precise value of this dimension shall be determined, but rather the relative size of this dimension compared to the overall width or height of the face, if not otherwise specified. In this guide, it is recommended that photoanthropometry not be used at all because of its limitations.