DVB-SS2 transmodulator for VSAT units employing IP based communication. The first extraction unit extracts a first set from an image including linear components that are line-shaped components. The method comprises: generating copper ratios; computing working air tables; calculating scales and offsets; and correcting high-energy CT images and Z images using calculated scales and offsets. The weight is made of a material different from that of the weight arranging part and the flexible parts.