Embodiments of a video telecommunication system are provided that can obtain a background scene desired by a user by automatically changing a background scene into a different background scene. The system can include a background picture synthesis unit and a background scene separation unit that can separate an object to be transmitted and a background scene except for the object in a picture in a process of transmitting/receiving data including at least the picture. A background picture database can provide a background picture to be transmitted instead of the background scene. The background picture synthesis unit can synthesize the separated object and a new background picture (e.g., selected from the background picture database). A picture transmission unit can transmit a synthesized picture synthesized by the separated object and the new background picture.