Unequal Error Protection for Robust Video Transmission Using Multiplexed Codes
نویسندگان
چکیده
An error resilient video coding scheme based on unequal error protection over error prone channels is proposed. Due to the sensitivity of VLC to channel errors, a single bit error can cause loss of synchronization at the receiver, leading to catastrophic degradation of image quality. Multiplexed codes are an effective approach to combat losses of synchronization. In this paper, multiplexed codes appropriate to video coding are designed and then integrated into a block based motion compensated video coder. We compared performances of this structure with one of the most used codes: Huffman code. Results show that the proposed scheme achieves high error resilience at almost no cost in compression efficiency.
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