公开(公告)号：EP0735778A3

公开(公告)日：1998-10-14

申请号：EP96301850

申请日：1996-03-19

申请人： IBM

发明人： EDGAR ALBERT DURR

IPC分类号： H04N9/07 ,  H04N9/04 ,  H04N9/077

CPC分类号： H04N9/077 ,  H04N9/045 ,  H04N2209/041 ,  H04N2209/049

摘要： An image is captured into a video signal comprised of individual pixels by means of an array sensor with color stripes. When processing the signal from the sensor, the system first interprets the highest frequencies of the signal as an upper sideband of the I color component in such a way that doubles the recoverable bandwidth of color detail. From the upper sideband of the signal, the corresponding lower color sideband is predicted and its effect is then subtracted from the luminance component, from which, in turn, an image is generated. The resulting image thereby produced is thus enhanced in sharpness while at the same time exhibiting a reduction in artifacts. Preferably color is demodulated from such a striped array sensor signal wherein the step is included of demodulating the predominant I color vector from the color carrier utilizing an asymmetric sideband filter.