The discovered closed-form UEP expression requires already available data, such as the image rate-distortion curve, the average error protection code rate, the typical allowed packet size for transmission, and the channel error model (represented by one parameter).
The performance results obtained show that the proposed PDEP video codec provides a better performing alternative to traditional error protection video coding schemes, notably Forward Error Correction (FEC -based schemes.
Unequal error protection (UEP) codes provide a selective level of protection for different blocks of the information message.
Another work in [27] also studied unequal error protection raptor codes for increasing error robustness of scalable video transmission.
This is based on unequal error protection, where the coding strength is dictated by visual importance.
In this context, this paper proposes a Perceptually Driven Error Protection (PDEP) video coding solution that enhances the error resilience of a state-of-the-art H.264/AVC predictive video codec using DSC principles and perceptual considerations.
In this article, we investigate a multi-user video streaming system applying unequal error protection (UEP) network coding (NC) for simultaneous real-time exchange of scalable video streams among multiple users.
SAD range PDR assignment,,,, Figure 6 Content adaptive unequal error protection using Wyner-Ziv coding.
The proposed codes are rate-compatible with unequal error protection and the codes are designed through optimization of the variable node degree distribution.
