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An Unequal Error Protection Scheme of H.265 Video Stream in Unmanned Aerial Vehicle System

Under the technological development nowadays, bit error remains hard to be solved in Unmanned Aerial Vehicle (UAV) video transmission system. The common Equal Error Protection (EEP) scheme ignores the reality that the importance of different components of the video stream varies, leading to limitation of protection performance. This paper proposes an Unequal Error Protection (UEP) scheme of H.265 video stream based on Low Density Parity Check Code (LDPC). In this scheme, the video stream information is encoded and transmitted hierarchically according to its varying degrees of sensitivity to bit error. It can reduce the influence of the bit error, which is generated during transmission, on the video’s quality and improve the reliability of the UAV video transmission system without additional need of transmission bandwidth.