1. A method comprising: receiving at a broadcasting terminal a sequence of images and selecting one of the images as a reference frame image; determining whether an N-th frame image has acute movements relative to the reference frame image according to a predetermined threshold; and compressing and transmitting the N-th frame image from the broadcasting terminal when there are acute movements in the N-th frame image; neither compressing nor transmitting the N-th frame image when there are no acute movements in the N-th frame image; and reconstructing the N-th frame image at a receiving terminal by matching facial movements in a prior image in reference to an audio signal from an audio de-compressor, wherein the sequence of images including the reconstructed N-th image is displayed in the receiving terminal.