Patent ID: 8681177

Claim:
An image display system comprising: an image display apparatus including an image capturing unit which captures an image of physical space in real time, a wireless communication unit which communicates with an image processing apparatus, including transmission of the captured image obtained by the image capturing unit to the image processing apparatus, and a display unit which receives from the image processing apparatus a composite image of the captured image and a virtual image composited by the image processing apparatus and displays the composite image; the image processing apparatus which communicates with the image display apparatus, the image processing apparatus including a generation unit which generates position and orientation information of the image display apparatus, a virtual image generation unit which generates the virtual image based on the position and orientation information, a composition unit which composites the captured image and the virtual image, and a communication unit which communicates with the image display apparatus, including transmission of the composite image obtained by the composition unit to the image display apparatus; and a plurality of wireless access points for communication between the image display apparatus and the image processing apparatus, wherein the image processing apparatus further comprises: a determination unit configured to determine whether switching from a first wireless access point used for communication with the image display apparatus to a second wireless access point is necessary; and a switching instruction unit configured to transmit a switching instruction to the first wireless access point and the second wireless access point if the determination unit determines that the switching is necessary, and wherein the image display apparatus further comprises: a communication control unit configured to disconnect communication with the first wireless access point when the image display apparatus receives the communication switching instruction from the first wireless access point and to transmit a link request to establish communication with the second wireless access point of a new communication destination included in the switching instruction to the second wireless access point; and a display control unit configured to display the captured image acquired in real time by the image capturing unit on the display unit instead of the composite image while a user of the image display apparatus is moving until the image display apparatus finishes switching from the first wireless access point to the second wireless access point, wherein the display control unit, when the switching has finished and a composite image corresponding to the captured image transmitted to the second wireless access point of the new communication destination has been received, ends display control of an image which is currently displayed on the display unit, and displays the received composite image on the display unit.