Abstract: A method of estimating an optical flow includes processing, using an image processing pass, a first image and a second image separately, and estimating the optical flow based on a second image attention feature map of the first image and a second image attention feature map of the second image. The processing using the image processing pass includes extracting a feature map by encoding an image, outputting a first image fusion attention feature map by fusing row relationship information of the image with the image feature map, outputting a first image attention feature map of the image based on the first image fusion attention feature map and the image feature map, outputting a second image fusion attention feature map by fusing column relationship information of the image with the first image attention feature map, and generating a second image attention feature map of the image based on the second image fusion attention feature map and the first image attention feature map.

Abstract: A method of generating an image includes obtaining an image sequence of a target scene and information about a first viewing angle, generating a plurality of rays corresponding to a plurality of pixels of an image plane of the first viewing angle of the target scene, determining a plurality of spatial points by sampling the plurality of rays, generating a first rendered image of the image plane by rendering the plurality of spatial points using a first neural network, determining a reference image of the first rendered image from among a plurality of images of the image sequence, and generating a second rendered image having a second resolution by upsampling the first rendered image using a second neural network and based on the reference image. The plurality of images being captured from the first viewing angle and having a first resolution, and the first rendered image having the first resolution.

Abstract: A method of estimating an optical flow includes processing, using an image processing pass, a first image and a second image separately, and estimating the optical flow based on a second image attention feature map of the first image and a second image attention feature map of the second image. The processing using the image processing pass includes extracting a feature map by encoding an image, outputting a first image fusion attention feature map by fusing row relationship information of the image with the image feature map, outputting a first image attention feature map of the image based on the first image fusion attention feature map and the image feature map, outputting a second image fusion attention feature map by fusing column relationship information of the image with the first image attention feature map, and generating a second image attention feature map of the image based on the second image fusion attention feature map and the first image attention feature map.