Smear reduction in CCD imagers using empty well clocking

Details Smear reduction in CCD imagers using empty well clocking Smear reduction in CCD imagers using empty well clocking

1983-11-21

1986-01-28

Rubinson, Gene Z.

Facsimile and static presentation processing

Facsimile

Recording apparatus

357 24, H04N 314

Patent

active

045675244

ABSTRACT:
Radiation illuminating the image register of a CCD imager of field transfer type during the transfer of a charge pattern from image register to field storage register results in smear in images reproduced from the imager output signal. Smear charge samples are sensed during one line time of a field and stored, and the stored line of smear charge samples are then used to cancel the effect of smear charge components in the other lines of a field. The lines of smear charge samples are obtained by clocking a line of empty charge wells into the A register as from a "phantom" row which does not physically exist.

REFERENCES:
patent: 3777061 (1973-12-01), Takemura
patent: 4010319 (1977-03-01), Levine
patent: 4032976 (1977-06-01), Levine

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