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 A JOINT SOURCE-CHANNEL DISTORTION MODEL FOR JPEG ...
joint source-channel coding schemes is a distortion model to mea-sure the quality of compressed digital multimedia such as images and videos. Unfortunately, models for estimating the distortion due to quantization and channel bit errors in a combined fashion do not appear to be available for practical image or video coding standards....
IEEE TRANSACTIONS ON IMAGE PROCESSING, XXXX 1 A Joint ...
Joint Source-Channel Coding, Distortion Model, JPEG, Unequal Power Allocation. I. INTRODUCTION With the introduction of real-time imaging in third generation wireless systems, it is clear that high bandwidth multimedia will be one of the main applications in next generation wireless systems. These
Joint source-channel coding with allpass filtering source ...
In this paper, we proposed a fixed-length robust joint source- channel coding (JSCC) scheme for image transmission over noisy channels. Three channel models are studied: binary symmetric channels (BSC) and additive white Gaussian noise (AWGN) channels for memoryless channels, and Gilbert-Elliott channels (GEC) for bursty channels....
Robust Joint Source-Channel Coding for Image Transmission ...
Robust Joint Source-Channel Coding for Image Transmission Over Wireless Channels ... rate of a bursty channel model into an end-to-end rate-distortion (R-D) function to achieve an optimum tradeoff between source ... subsource for the th state after channel coding. For BSC or AWGN models, there is only one state, so (2) be-...
Robust Image-Adaptive Data Hiding: Modeling, Source Coding ...
better performance may be obtained using joint source-channel hiding. We illustrate this via the example of image-in-image hiding. Since the attack level is seldom known a priori, our design goal is to provide graceful improvement in the quality of the recov-ered hidden image as the attack becomes milder. While joint source-channel coding for...
90 IEEE TRANSACTIONS ON COMMUNICATIONS, VOL. 56, NO. 1 ...
KWASINSKI and LIU: TOWARD A UNIFIED FRAMEWORK FOR MODELING AND ANALYSIS OF DIVERSITY IN JOINT SOURCE-CHANNEL CODING 91 Source Encoder (rate x) Channel Encoder (rate r) AWGN Channel SNR Source Decoder Channel Decoder Source Recovered Fig. 1. Block diagram of the system under study transmission in mobile channels, [23] for image transmission...
ITERATIVE SOURCE-CHANNEL DECODING FOR ROBUST IMAGE ...
after source-encoding and the explicit redundancies from chan-nel codes are used for protecting the data. Furthermore, in the proposed experimental image transmission system the source and channel encoding rates are jointly allocated in a rate-distortion sense. For the source correlation a two-dimensional model [5] is used, and at the decoder ......
Iterative Source-Channel Decoding for Error-Resilient ...
3 Joint Allocation of Source and Channel Coding Rates When considering the transmission model in Fig. 1 for every subband in a subband image compression scheme, we have the additional problem of choosing the individual bit rates for the subbands and the channel coding rates for a given rate budget µÊ...
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