Patent ID: 11863756
Assignee: SAMSUNG ELECTRONICS CO., LTD.
Field: Audio-visual technology (Electrical engineering)
Classification: CPC H  G | IPC H

Claim 0:
1. An image decoding method using artificial intelligence (AI), the image decoding method comprising:
obtaining feature data of a current optical flow and feature data of current differential data from a bitstream corresponding to a current image;
applying feature data of a previous optical flow to a first preprocessing neural network;
obtaining a first concatenation result by concatenating the feature data of the current optical flow and feature data obtained from the first preprocessing neural network;
obtaining the current optical flow by applying the first concatenation result to a neural-network-based first decoder;
obtaining the current differential data by applying the feature data of the current differential data to a neural-network-based second decoder; and
reconstructing the current image using the current differential data and a current predicted image generated from a previous reconstructed image based on the current optical flow.