英语翻译
Marr believed that it was important to establish scientific foundations for vision,and that while doing so,one must limit the scope of investigation by excluding everything that depends on training,culture,and so on,and focus on the mechanical or involuntary aspects of vision.This low-level vision is the part that enables us to recreate the three-dimensional organization of the physical world around us from the excitations that stimulate the retina.Marr asked the questions:How is it possible to define the contours of objects from the variations of their light intensity?How is it possible to sense depth?How is movement sensed?He then developed working algorithmic solutions to answer each of these questions.