Study on Tele-immersive Communication with Multi-video Streaming on Tiled Display Wall

In tele-communication via WAN, the existence of participant by video streaming in real scene is important. In addition, we consider that non-verbal communication play an important role. In order to realize realistic communication between remote places, the display of video image in remote site with the large-scale screen is effective. However, the video image on wide-area display with a projector and large screen is low-resolution, and sufficient presence is not obtained. In past, we have constructed tele-immersive environment with tiled display wall to realize realistic remote communication with video streaming. However, the video image by single small camera is difficult to display with realistic high-resolution on tiled display wall, because there is a limit in the display resolution of video image captured by a small camera. In this paper, we have proposed the technique to realize high-speed display of realistic high-resolution video image on tiled display wall by transmitting each video image data which captured by multiple cameras and compositing as a high-resolution video image. From the experimental result, the video image could display more high-quality than expanded video image by single small camera. In addition, we have measured the network throughput performance for each transmission video in the system, and steady throughput performance has been gained in the case of each video image.