In this distinguished lecturer colloquia, Shree Nayar introduces the concept of a computational camera, a device that embodies the convergence of the camera and the computer, using new optics to select rays from the scene in unusual ways and an appropriate algorithm to process the selected rays. Nayar presents examples that demonstrate how the computational camera redefines the notion of an image and has the potential to impact the very nature of visual communication. From the Series:CSE Colloquia - 2004