Television camera having a noise reduction and vertical edge correction

Abstract

An interlacing television camera apparatus includes a solid-state imaging device, drive unit, delay unit, and vertical-edge correcting unit. The drive unit drives the imaging unit to simultaneously output, in a first field, a main video signal and a sub-video signal i.e., even and odd numbered lines, respectively, in a first field from the device, which represent a charge accumulated in a pixel located on a scanning line of the first field and a charge accumulated in a pixel located on a scanning line of a second field next to the first field, respectively. Next, the drive unit drives the imaging device to simultaneously output, in the second field, a main video signal and a sub-video signal in a second field from the device, which represent the charge accumulated in the pixel located on the scanning line of the second field and a charge accumulated in a pixel located on a scanning line of a first field next to the second field, respectively. The delay unit delays the first sub-video signal in the first field by one horizontal scanning period to produce a second sub-video signal, and delays the first sub-video signal in the second field by one horizontal scanning period to produce a second sub-video signal. The vertical-edge correcting unit processes the first sub-video signal and the second sub-video signal in each field and adds a result of the processing to the main video signal, to correct a vertical edge of the main video signal.