In the present invention, omnidirectional video images shot by a plurality of cameras are so distributed that the video images can be changed seamlessly on a receiver side. A panorama image, which is composed of the video frames obtained originally from the plural cameras and arranged on a cylindrical lateral plane, is divided into equal halves, and the second-half frame portion thus divided is placed under the first-half frame portion. Further, rearrangement is performed in such a manner that an extra video frame of the adjacent camera is pasted to one edge of the divided portion, and in the vicinities of both edges of the omnidirectional video image, the video frames of the adjacent cameras thus pasted together are duplicated, whereby any region astride the video frames of the adjacent cameras can be changed seamlessly.