N. Matoba et S. Yoshida, STILL IMAGE TRANSMISSION USING UNEQUAL ERROR PROTECTION CODING IN MOBILE RADIO CHANNEL, Electronics & communications in Japan. Part 1, Communications, 79(4), 1996, pp. 75-85
With the advent of multimedia mobile communication, image transmission
in the fading channel is becoming more and more important. This paper
discusses the highly efficient coding where the image coding and the
channel coding are integrated. More precisely, the following hierarchi
cal image transmission is proposed. Assuming Joint Photograph Experts
Group (JPEG) progressive image coding, discrete cosine transform (DCT)
transform coefficients or-the bit planes are divided into groups so t
hat the unequal channel coding rates are assigned according to the eff
ect of the channel error on the image quality: The proposed system is
examined and evaluated by a computer simulation. As a result, it is sh
own that the reconstructed image suffers from less deterioration compa
red to the case where the channel coding rate is assigned uniformly.