Frame switcher and method of switching, digital camera, and monitoring system

摘要

An image data transmission system reduces a delay resulting from compression processing of image data. The image data transmission system comprises cameras for compress encoding image data and transmitting compress-encoded image data, a decoder, a control device, monitors, and a LAN. Upon selection of a camera from the control device for control, the control device acquires information on capabilities of the cameras through the LAN. When a function which is affected by a delay due to the compress-encoding is used from among functions of the controlled camera, compress-encoding that reduces the delay is performed in the camera.