1. An apparatus for obtaining a three-dimensional (3D) face model using a portable camera, comprising: a face image capturing unit configured to capture user face images; a face image processing unit configured to extract a series of face images from the captured user face images; a 3D face mesh creating unit configured to analyze relationships of the face images to create a 3D user face mesh; a standard face model matching unit configured to match a 3D face standard model to the 3D face mesh created by the mesh creating unit to create a final high-quality user face model; a face skin texture synthesizing unit configured to create a face skin texture from the captured images; and a realistic face rendering unit configured to perform realistic rendering by using the user's high-quality 3D face model and the skin texture.