关于正确重合头颅和人像的成像理论研究  

A Study on the Imaging Theory of the Correct Superposition of Skull and Portrait

作　　者：赵公仪[1] 

机构地区：[1]陕西警官职业学院,西安710054

出　　处：《影像技术》2005年第3期56-59,共4页Image Technology

摘　　要：正确重合人头的头颅和脸面的图像是法庭技术中的一项重要课题.不正确的重合有可能再现一张错误的人像,对刑侦工作产生误导,甚至产生不幸的结果.本文从锥体投影成像原理出发,阐述人的脸面形成平面影像时的空间关系.对以往颅像重合检验中的仰俯角度矫正、检验容许误差、男女性别差、几何现势相似性等问题的不确切做法进行了数理方面的剖析.The correct superposition of human skull and face portrait is a delicate subject of forensic technology.An incorrect superposition can guide to a faulty reproduction of a human face,consequendy misleading the crime investigation,the result may be miserable.On the basis of conical projection imaging principle,this paper elucidates the spatial relationship in the planar imaging of human skull and face.A series of misunderstandings happened during previous superposition techniques are analyzed and dissected through physical and mathematical calculations, e.g.look-up/look-down angle correction, tolerated identification error, gender difference,geometrical similarity etc.

关 键 词：锥体投影成像 空间几何重合 透视形状变化 容许误差 成像原理 重合 理论研究 人像 锥体投影 空间关系 

分 类 号：TB852.1[一般工业技术—摄影技术] TH122[机械工程—机械设计及理论]