AI AI AI encoding apparatus and operating method for the same and AI decoding apparatus and operating method for the same

摘要

A memory for storing one or more instructions and a processor for executing one or more instructions stored in the memory, wherein the processor is an image corresponding to a first image in which an AI encoding apparatus AI downscales an original image using a first DNN. When data is obtained, a second image corresponding to the first image is reconstructed based on the image data, and a second image is input to a second DNN including a plurality of layers, a first filter kernel among the plurality of layers and, from the first layer including the second filter kernel, obtains first result values based on the operation result of the second image and the first filter kernel, and is based on the operation result between the second image and the second filter kernel. obtain second result values based on the normalization by converting the first result values to first values based on the first scale factor, and convert the second result values to second values based on the second scale factor by doing normalization, converting the normalized values into integer values included in a preset range, and inputting the converted integer values to a second layer that is the next layer of the first layer among the plurality of layers, and the second layer obtains third result values in , and based on the third result values, a second image acquires an AI-upscaled third image, the second DNN corresponding to the first DNN, a first scale factor and An apparatus for decoding an image in which the second scale factor is determined by values associated with scale factors included in the first DNN is disclosed.