IMAGE PROCESSING APPARATUS AND OPERATION METHOD THEREOF

    公开(公告)号:US20230069072A1

    公开(公告)日:2023-03-02

    申请号:US17888170

    申请日:2022-08-15

    Abstract: An image processing apparatus may include: a memory storing one or more instructions; and a processor configured to execute the one or more instructions stored in the memory, wherein the processor executes the one or more instructions to use one or more convolutional neural networks to: determine first parameters, based on position information of first pixels included in a first region of a first image and position information of samples of the first image; obtain sample values of the samples by applying the first parameters to pixel values of the first pixels; obtain feature information corresponding to the first region by performing a convolution operation between the sample values and a kernel of the one or more convolutional neural networks; and generate a second image, based on the feature information.

    METHOD AND DEVICE FOR EXTRACTING NOISE OF COMPRESSED IMAGE, AND METHOD AND DEVICE FOR REDUCING NOISE OF COMPRESSED IMAGE

    公开(公告)号:US20230075881A1

    公开(公告)日:2023-03-09

    申请号:US17987582

    申请日:2022-11-15

    Abstract: Provided is a method of reducing noise of a compressed image, the method including obtaining a first image by applying a convolution filter, which sequentially performs down-convolution and up-convolution corresponding to the down-convolution, to a compressed image of an original image, obtaining a second image by subtracting the first image from the compressed image, obtaining noise comprising high-frequency information and a compressed artifact of the compressed image from the second image, obtaining a third image by removing the compressed artifact by applying a deep neural network (DNN) for removing the compressed artifact to the noise, and reconstructing the compressed image by summing the first image and the third image.

    IMAGE PROCESSING DEVICE AND OPERATING METHOD THEREOF

    公开(公告)号:US20220284545A1

    公开(公告)日:2022-09-08

    申请号:US17687162

    申请日:2022-03-04

    Abstract: An image processing device, including a memory configured to store one or more instructions; and a processor configured to execute the one or more instructions stored in the memory to: obtain kernel coefficient information corresponding to each pixel of a plurality of pixels included in a first image, using a convolution neural network including one or more convolution layers, generate a spatially variant kernel including a kernel corresponding to the each pixel, based on a gradient kernel set including a plurality of gradient kernels corresponding to one or more gradient characteristics of the plurality of pixels, and the kernel coefficient information, and generate a second image, by applying the kernel included in the spatially variant kernel to a region centered on the each pixel, and filtering the first image.

    IMAGE PROCESSING DEVICE AND METHOD FOR OPERATING SAME

    公开(公告)号:US20220019844A1

    公开(公告)日:2022-01-20

    申请号:US17299607

    申请日:2019-10-16

    Abstract: An image processing apparatus includes a memory storing one or more instructions, and a processor configured to execute the one or more instructions stored in the memory. The processor is configured to, by using one or more convolution neural networks, extract target features by performing a convolution operation between features of target regions having same locations in a plurality of input images and a first kernel set, extract peripheral features by performing a convolution operation of features of peripheral regions located around the target regions in the plurality of input images and a second kernel set, and determine a feature of a region corresponding to the target regions in an output image, based on the target features and the peripheral features.

    IMAGE PROCESSING APPARATUS AND OPERATION METHOD THEREOF

    公开(公告)号:US20230360169A1

    公开(公告)日:2023-11-09

    申请号:US18135992

    申请日:2023-04-18

    CPC classification number: G06T3/40 G06T5/50 G06T2207/20016

    Abstract: An image processing apparatus for performing an image by using one or more neural networks may include a memory storing one or more instructions and at least one processor configured to execute the one or more instructions stored in the memory to obtain first feature information of a first image, generate an intermediate output image for the first image by performing first image processing on the first feature information, generate an attention map, based on the first image and the intermediate output image, obtain second feature information by performing second image processing on the first feature information, obtain fourth feature information by performing third image processing on third feature information extracted during the first image processing, and generate a second image having a higher quality than the first image, based on the attention map, the second feature information, and the fourth feature information.

    IMAGE PROCESSING DEVICE AND OPERATION METHOD THEREOF

    公开(公告)号:US20230071417A1

    公开(公告)日:2023-03-09

    申请号:US17987574

    申请日:2022-11-15

    Abstract: An image processing apparatus includes a memory storing at least one instruction; and a processor configured to execute the at least one instruction to use at least one neural network to: extract n pieces of first feature information from a first image, based on locations of pixels included in the first image, wherein n is a positive integer, generate n pieces of second feature information by performing a convolution operation between each of the n pieces of the first feature information and each of n kernels, and generate, based on the n pieces of the second feature information, a second image from which compression artifacts included in the first image are removed.

    IMAGE PROCESSING DEVICE AND OPERATION METHOD THEREFOR

    公开(公告)号:US20220375027A1

    公开(公告)日:2022-11-24

    申请号:US17293806

    申请日:2020-04-03

    Inventor: Iljun AHN Tammy LEE

    Abstract: An image processing device includes: a memory storing one or more instructions; and a processor configured to execute the one or more instructions stored in the memory to: obtain location change feature information based on values of pixels included in a first image and relative location relationships of the pixels included in the first image and pixels included in a second image; and generate the second image obtained by up-scaling the first image by k times, by performing a convolution operation on the location change feature information and a kernel, wherein k is a real number.

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