A fast reconstruction method for transmitting images progressively

To transmit an image over narrow bandwidth channels is an important issue i n networks. We proposed a new progressive image transmission (PIT) method i n this paper. We carl it the fast reconstruction method (FRM). There are th ree techniques in this method. First, we use vector quantization (VQ) to co mpress the image. Then, we design the central sampling technique, and emplo y it to select the indices of the compressed image. These indices will be t ransmitted to the receiver phase by phase. Finally, the receiver applies th e pixels copy technique and the received indices to reconstruct the image. From the experimental results, we see that FRM just needs 3.6% reconstructi on time of the selective progressive image transmission method (SPITM) to r econstruct the image. Besides, the PSNR of our method is better than that o f SPITM at the beginning phases. FRM is therefore effective and efficient i n PIT.