Patent ID: 11928843
Assignee: CANON KABUSHIKI KAISHA
Field: Audio-visual technology (Electrical engineering)
Classification: CPC G  H | IPC G  H

Claim 17:
18. A signal processing method comprising:
generating lossy compressed image data, and generate a locally-decoded image;
generating a decoded image by decoding the lossy compressed image data by a decoding processing; and
performing image restoration processing on the decoded image,
wherein in an encoding processing, calculating a maximum bit position where a difference occurs between each pixel of the locally-decoded image and an original image, the original image being an image before encoding, for each of predetermined blocks, and calculating a bit greater than or equal to the maximum bit position as an unrestored bit, and the wherein the encoding processing and the decoding processing are capable of communicating over a network and are capable of transmitting and receiving at least the lossy compressed image data, the decoded image, and the unrestored bit, and
wherein in the restoration processing, it is determined whether or not to perform the restoration processing for each of blocks in the decoded image in accordance with specific image information, and for a block on which it is determined that the restoration processing is to be performed, the restoration processing is performed on the basis of an inference made using a coefficient learned in advance.