Abstract: Provided is a monitoring camera apparatus that can pick up, when an image of a signal lamp of a traffic signal is picked up by a monitoring camera at night, an image of an image pickup region other than the signal lamp bright without saturating a red signal lamp. The monitoring camera apparatus includes signal controlling means including RGB ratio detecting means for detecting lighting, lighting/extinguishing times, the shape and the number, or signal lamp control signals of signal lamps of a traffic signal in the image pickup region and detecting ratios of RGB signals of the signal lamps, gain controlling means for controlling a gain of the RGB signals, and color mixture controlling means for controlling color mixtures of respective signal lamp colors.

Abstract: A solid-state image-pickup device signal processing apparatus includes a solid-state image-pickup device, an amplifier for amplifying an output signal of the solid-state image-pickup device, an A/D conversion circuit for converting an analog output signal of the amplifier to a digital signal, a digital correlated double sampling circuit for removing noises, and a device for supplying an optional-value direct current signal to a video signal portion of a digital output signal of the A/D conversion circuit. The digital correlated double sampling circuit subtracts a field-through portion of the digital output signal from the video signal portion including the optional-value direct current signal added thereto so that the optional-value direct current signal remains after subtracting the field-through portion from the video signal portion including the optional-value direct current signal when the solid-state image-pickup device image-picks up a dark space.

Abstract: A filed sequential color camera system includes a color camera, and an illumination unit. The color camera includes a separation optical system to separate an optical image of a subject incident from a lens in two directions; two solid-state imaging devices to convert into electric signals the respective optical images separated in the two directions; an electronic shutter control device to apply sequential exposure control to the two solid-state imaging devices within a time corresponding to a ½ frame for each one frame and at a non-overlapping interval; and a light-emitting sync signal output device to produce a light-emitting sync signal in sync with the sequential exposure control by the electronic shutter control device. The illumination unit receives the light-emitting sync signal from the color camera to emit multicolor light having different wavelength ranges in sync with exposure control of the solid-state imaging devices and in a sequential switch mode.

Abstract: The invention provides a field sequential color camera system wherein a light-emitting strobe or diode with invisible light such as infrared or ultraviolet light added to red, green and blue visible light is combined with an illumination unit capable of emitting light in a field sequential mode so that high-definition images are finished and obtained at two frames.

Abstract: To provide a digital correlated double sampling circuit having a plurality of functions such as flaw compensation, shading compensation and the like specific to CCD, said functions being added to a correlated double sampling circuit.