1.  Field
Apparatuses and methods consistent with exemplary embodiments relate to encoding and decoding a motion vector, and more particularly, to encoding and decoding a motion vector by predicting a motion vector of a current block. 
2.  Description of the Related Art
A codec, such as Moving Pictures Experts Group (MPEG)-4 H.264/MPEG-4 Advanced Video Coding (AVC), uses motion vectors of previously encoded blocks adjacent to a current block to predict a motion vector of the current block.  That is, a median of motion vectors of previously encoded blocks adjacent to left, upper, and upper-right sides of a current block may be used as a motion vector predictor of the current block.