Aspects of the disclosure provide methods and apparatuses for video encoding/decoding. In some examples, an apparatus for video decoding includes receiving circuitry and processing circuitry. The processing circuitry decodes prediction information of a current block in a current picture from a coded video bitstream. The prediction information is indicative of a sub-block based merge mode. Then, the processing circuitry decodes offset information from the coded video bitstream and reconstructs a sample in a sub-block of the current block according to motion information of the sub-block that is determined based on the sub-block based merge mode and the offset information.