FIELD: radio engineering, communication.
SUBSTANCE: method includes, before reading charge packets, setting the position of the window of interest which is characterised by the number of rows N1, N2, setting the level of reduction of resolution in the panorama which is characterised by the number of the summed rows of the panorama M, reading the charge packets in three steps and generating signals of two images. The first and third reading steps include performing N1 and N2 row transfer cycles, respectively, wherein the output register is read only after every M row transfer cycles. During the second step, the output register is read during each row transfer. Two digital image signals are generated: window of interest and panorama. The image signal of the window of interest is obtained by masking readings of a signal read during the second step, and the image signal of the panorama is obtained via successive composition of readings of a signal, read during the first step, with the element-by-element sum of groups on M rows of readings of the signal read during the second step, readings of a signal read during the third step.
EFFECT: higher frequency of reading CCD matrix photodetectors with generation of signals of two images differentiated by the viewing field and resolution: a panoramic image with a wider viewing field and low resolution and a window of interest with a smaller viewing field and a higher resolution.
4 dwg
