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To increase the overall visual quality of the video services without increasing data rate, we developed an unequal protection technique called UEP3D (Unequal Error Protection 3D) based on a hierarchy of the video stream in different levels of importance,. The determination of levels of importance takes three classification criteria: pixel level, macroblock level and image level. At the end of the...
The paper has a unique insight into the recently emerging erasure correcting codes, LT codes, in terms of its crucial structure of Robust Soliton Distribution in the truncation form. We propose a truncation scheme on the original degree distribution to achieve a higher decoding success probability while slightly decreasing the operational complexity. We test the influence of the truncation length...
This paper introduces block-based rateless coding for video streaming over a wireless interconnect, in which after a packet erasure additional coded blocks are generated and piggy-backed onto outgoing packets. The advantage is shown in comparison to default Bluetooth FEC schemes, as, through the block-based rateless scheme, transmission energy consumption is reduced by a factor of up to 1.8, depending...
In this paper, we develop an approach toward joint source-channel coding (JSCC) for JPEG compressed image transmission. First, a data partition (DP) technique is employed to divide the JPEG bitstream into three groups, namely, Huffman codes, DC coefficients and AC coefficients. Second, we combine the rate-compatible punctured convolutional (RCPC) codes to protect the coded data according to channel...
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