Study of Transmission-Delay Time for IP Remote Production of 8K UHDTV

We investigated remote production, which produces live TV programs from the broadcast-station side by connecting venues and the broadcast station via an IP network. We previously developed a lightweight compressed 8K UHDTV transceiver, which can transmit and receive 8K video with high image quality and low processing-latency in real time. In remote production, low-delay live video transmission over a network is required, so when designing such a network, it is necessary to determine whether the network can satisfy the required transmission-delay time in advance. We conducted a remote production experiment via a commercial network and clarified the relation between the required transmission-delay time for remote production and factors that constitute transmission-delay time. It was found that the transmission-delay time of 1-video frame or less can be achieved if the number of routers is 4 and the path length is about 600 km.