Patent ID: 11972543
Assignee: GUANGDONG OPPO MOBILE TELECOMMUNICATIONS CORP., LTD.
Field: Computer technology (Electrical engineering)
Classification: CPC G | IPC G

Claim 9:
10. A computer-implemented method, comprising:
receiving at least one feature map by a decoder, wherein the at least one feature map is extracted from a first color image, the first color image comprises a first portion of the first color image and a second portion of the first color image located at different locations of the first color image, and the at least one feature map comprising global information and local information which together indicate whether a color consistency relationship between the first portion of the first color image and the second portion of the first color image exists;
generating, by the decoder, a second color image from the at least one feature map, wherein a first portion of the second color image corresponding to the first portion of the first color image and a second portion of the second color image corresponding to the second portion of the first color image are restored considering whether the color consistency relationship between the first portion of the first color image and the second portion of the first color image exists, and
outputting the second color image by the decoder,
wherein:
the decoder comprises a plurality of first convolutional blocks, and each of the first convolutional blocks comprises a corresponding first convolutional layer with a first receptive field, and a corresponding second convolutional layer with a second receptive field,
the first receptive field and the second receptive field of each second convolutional block of the first convolutional blocks are determined using at least one of the first receptive field and the second receptive field of a corresponding first convolutional block of the first convolutional blocks, and each second convolutional block of the first convolutional blocks is subsequent to the corresponding first convolutional block of the first convolutional blocks; and
the first receptive field is wider than the second receptive field.