A method of transmitting a plurality of frames of image data over a
communications channel from a display image source to a display device is
disclosed, wherein the plurality of frames of image data are transferred
on a frame-by-frame basis at a predetermined time interval. The method
includes encoding at least a portion of a selected frame of image data
via hierarchical encoding to form a hierarchically encoded set of image
data layers, and sending only a subset of the set of image data layers
over the communications channel, wherein the subset of image data layers
includes fewer image data layers than the set of image data layers.