IMAGE ENCODING/DECODING APPARATUS AND METHOD

摘要

According to the present invention, a motion vector for an input coding unit is generated, motion compensation is performed on the basis of the generated motion vector to generate a prediction signal, a weight parameter is generated on a prediction unit basis, the weight parameter is applied to the prediction signal to generate a prediction macro block, and a residue value is generated on the basis of the received coding unit and the prediction block. The same motion parameter is allocated to the merged blocks, and the blocks are transmitted to a decoder. An image encoding/decoding method selects interpolating filters to be used in an inter-frame prediction based on motion compensation, for units more precise than a picture unit, wherein said more precise units include at least one of a slice unit and a partition unit, and calculates sub-pixel values. According to the present invention, quality of encoded image can be improved, and efficiency of encoding high resolution images having resolution higher than a high definition (HD) class can be improved.