Abstract: The present invention provides a technique which enables remote operation and a remote-shooting system while watching a monitor display using a compact camera and simple accessories. A transmission unit has a mount connected to a lens unit, a transmission section and a power supply section. A reception unit has a mount connected to a camera body and a reception section. The reception unit is connected to the camera body to make the camera body act as a remote controller for image monitoring, selection of a shooting mode, and release operation and the like, thereby providing a remote-shooting function through communication between the transmission unit and the reception unit.

Abstract: An accessory unit is mounted on an electronic camera, and a printer connects to the electronic camera via a SCSI terminal of the accessory unit. An image signal is captured from a CCD in response to the releasing operation, and the image signal is analog-to-digital converted before being transferred to the accessory unit. The accessory unit converts the image signal into RGB data suitable for the printer, and outputs the RGB data to the printer so that the captured image can be simultaneously with the image-capturing. Moreover, during sequential image-capturing, captured image data is sequentially stored in an uncompressed state in a frame memory of the accessory unit. After sequential image-capturing is completed, the image data is transferred to the camera in an order in which it is stored, and compressed. Further, a background image is recorded in a memory card in advance, and an image is composed from the background image and a captured image (or a reproduced image) in the accessory unit.

Abstract: An image quality correction circuit for use with an imaging apparatus which converts a luminance signal so that an intermediate portion of the signal between preset minimum and maximum values is extended. The invention also relates to a device where color difference signals are corrected in accordance with the same nonlinear characteristic utilized in the correction of the luminance signal.

Abstract: An autoregistration system is disclosed for a color television camera equipped with a plurality of image pickup devices so as to combine picture signals obtained through the plurality of channels from the plurality of image pickup devices into a composite color television signal. The autoregistration system comprises means for producing a level difference signal representing a predetermined difference in level between the picture signals of desired two channels, between which a picture image registration is to be carried out, and a first and second edge signals of the two channels; and means for subjecting the level difference signal and first and second edge signals to an operational processing to obtain a discriminatory signal representing the direction of a registration offset between the picture signals of the two channels.