Video enhancement using a neural network

A computer-implemented method comprising:

• receiving a request to enhance one or more images of a video file;
• receiving a lower-resolution image of the video to be at least partially enhanced using a trained neural network;
• enhancing the lower-resolution image using the trained neural network according to the request by applying the trained neural network on the lower-resolution image to:
• removing artifacts by generating, using a layer of the trained neural network, a residual value based on the proper subset of the received image and at least one corresponding image portion of a preceding lower resolution image in the video file and at least one corresponding image portion of a subsequent lower resolution image in the video file,
• upscaling the received image using bilinear upsampling, and
• combining the upscaled received image and residual value to generate an enhanced image;
• and
• outputting the enhanced image.

A system comprising:

• storage for a video file;
• an image enhancement service implemented by one or more electronic devices, the image enhancement service including instructions that upon execution cause the image enhancement service to:
• receive a request to enhance one or more images of the video file,
• receive a lower-resolution image of the video to be at least partially enhanced using a trained neural network,
• enhance the lower-resolution image using the trained neural network according to the request by applying the trained neural network on the lower-resolution image to:
• remove artifacts by removing artifacts by generating, using a layer of the trained neural network, a residual value based on the proper subset of the received image and at least one corresponding image portion of a preceding lower resolution image in the video file and at least one corresponding image portion of a subsequent lower resolution image in the video file,
• upscale the received image using bilinear upsampling, and
• combine the upscaled received image and residual value to generate an enhanced image, and output the enhanced image.