Video telecommunication system for synthesizing a separated object with a new background picture

A terminal for video telecommunication comprising:

• a background scene separation unit for separating a background scene region and a human region;
• a background scene synthesis unit for synthesizing the separated human region and a new background scene into a synthesized picture;
• a picture encoder for encoding the synthesized picture for telecommunication;
• a picture decoder for decoding picture signals received from other party;
• and
• a telecommunication device for transmitting an encoded picture with information on a boundary between the separated human region and a background scene, and receiving the picture signals according to communication protocol;
• wherein the encoded picture is transmitted to a terminal of the other party through a buffer and the telecommunication device,
• wherein the background scene separation unit includes:
• a face region extraction unit for classifying cells of a picture into skin-colored cells and non-skin-colored cells based on how much skin color pixels occupy in each of the cells of the picture, for grouping connected skin-colored cells into face region candidates, and for determining a face region among the face region candidates based on whether a ratio of the number of width pixels to length pixels in the face region candidates is within a prescribed range;
• a general region separation unit for separating a general region outside the face region to generate a plurality of separated regions, and
• a region synthesis unit for determining regions corresponding to the human region from among the plurality of separated regions based on a position of the extracted face region, and for synthesizing the face region and regions determined as the human region to separate the background scene region and the human region.