Realistic visual environment for immersive projection display system

People should feel more immersive and act realistically when the backgrounds of virtual reality system are more similar to real world. If we surround users by the real images - panoramic imaging - in CAVE, we can make more realistic environment. We make the panoramic images from the real environment using a digital camera and a panoramic tripod head and apply them to the K-CAVE system to increase user's immersion. We formulate panoramic image photographing for efficiency and use the SCTP data connection for reliability in the K-CAVE system.