Farid Hany
Department of Computer Science, Dartmouth College, Hanover, NH 03755, USA.
Perception. 2009;38(11):1731-4. doi: 10.1068/p6580.
Ever since the assassination of US President Kennedy, numerous theories have circulated purporting that Lee Harvey Oswald, the accused assassin, acted as part of a larger criminal conspiracy. It has been suggested, for example, that incriminating photographs of Oswald were manipulated, and hence evidence of a broader plot. Specifically, it has been argued that the lighting and shadows in these photos are physically impossible. Because the visual system is often unable to reliably judge 3-D geometry and lighting, a detailed 3-D analysis of the Oswald photos to determine if claims of tampering are warranted.
自美国总统肯尼迪遇刺以来，众多理论流传开来，声称被指控的刺客李·哈维·奥斯瓦尔德是一个更大犯罪阴谋的一部分。例如，有人认为不利于奥斯瓦尔德的照片被篡改了，因此这是更广泛阴谋的证据。具体而言，有人认为这些照片中的光线和阴影在物理上是不可能存在的。由于视觉系统往往无法可靠地判断三维几何形状和光线，因此对奥斯瓦尔德照片进行详细的三维分析，以确定篡改指控是否合理。
