1. A computer readable recording medium having encoded thereon an XMT (extensible MPEG-4 textual format) schema for DIBR data, the XMT schema comprising: a BitWrapper node schema used for graphics data compression; and a DepthImage node schema, which is used for depthimage-based model rendering, includes camera information and texture information having a depth information, defines diTexture as an element including SFDepthTextureNode as a model group, wherein the BitWrapper node schema comprises: a node element, which contains graphics data including data to be compressed and refers to SFWorldNode as a subelement; a BitWrapperEncodingParameter element; and three attributes having the names type, url, and buffer and the types SFInt32, MFUrl, and SFString, respectively, and the camera information of the depthimage node schema defines at least one of position, orientation, fieldOfView, nearPlane, farPlane, and orthographic as an attribute name, and attribute types defined in the camera information include SFVec3f, SFRotation, SFVec2f, SFFloat, SFFloat, and SFBool, respectively.