Method for improving the subjectively observed sharpness of television pictures

摘要

1. Method for improving the subjectively sensed picture sharpness of television pictures in an industrial television system, in which - the television pictures are generated in a television camera, - transmitted over a transmission link and - displayed on a monitor, - the television pictures being subjected to a preemphasis of the local frequencies which is effective in the horizontal and vertical direction, characterized in that - the pre-emphasis has its maximum effect in the frequency range from 3-5 MHz referred to the horizontal direction and this pre-emphasis results in an edge overshoot of the black/white and white/black transitions in the picture signal.