中文摘要：

头部姿势估计的研究成果众多，但缺乏系统、详尽的综述性文献．针对该问题，首先介绍头部姿势的表达方式和头部姿势估计的基本问题，然后从方法依赖的数据源、人工干预程度和实现原理等角度对已有头部姿势估计方法进行分类，并以实现原理为主线，以所依赖的数据源为辅助，对头部姿势估计问题的研究文献进行详细整理和分析．

英文摘要：

Lots of head pose estimation methods have been presented, while there is not any survey that systematically summarizes the existing methods. To address this problem, detailed description of head pose estimation is firstly presented to define what head pose estimation is and how to describe it. Then, the existing head pose estimation methods are categorized according to the data source used by the methods, the automation of the methods and the principle of the methods. Furthermore, the principle and data source are taken as the main line and auxiliary line respectively to detailedly review and analyze the existing head pose estimation methods.