Prediction Algorithms and Grid Based Architecture for Streaming System

A scanning projection apparatus including a first imaging optical system, a first plane provided on one side of the optical system, a deflector for deflecting a light beam emerging from the first plane and passing through the first imaging optical system, a second imaging optical system for receiving the light beam deflected by the deflector and a second plane provided at the focusing position of the light beam by the second imaging optical system, whereby the first plane is scanned with a slit of a width DELTA S, using the deflector, and the thus obtained slit image of the first plane is projected in succession on a determined position in said second plane, wherein the slit width DELTA S is selected to satisfy a relation DELTA S<1/Rp in which Rp represents the resolving power of the image on the second plane, and wherein the first or second imaging optical system includes elements for correcting the image magnification in the longitudinal direction of the slit.