Abstract: A method for decoding video data and an electronic device for performing the method are provided. The method receives the video data which includes multiple image frames. The method parses the video data to determine a first difference parameter for a first block unit within a current frame of the image frames. The method determines a first motion vector of the first block unit based on a first motion vector predictor of the first block unit, the first difference parameter, and motion vector information of one or more second block units within the current frame stored in the electronic device. The one or more second block units are adjacent to the first block unit. The method then reconstructs the first block unit based on the first motion vector and a reference frame included in the image frames.