Bit-sliced progressive transmission and reconstruction of transformed images

Progressive transmission and reconstruction of coded images allows an approximate image to be reconstructed based upon partially received information and adds details as additional information becomes available. This technique has various potential applications in the area of image communications, such as interactive picture retrieving, variable-rate video conferencing, and quick display for freeze-frame image transmission. We propose an optimal progressive transmission and reconstruction scheme for transformed images using bit-sliced bit assignment. Simulation results have shown that the bit-sliced progressive transmission scheme achieves a comparable performance at half of the bit rate required by the zigzag scanning approach.