ENCODING METHOD AND APPARATUS THEREFOR, AND DECODING METHOD AND APPARATUS THEREFOR

    公开(公告)号:US20220224928A1

    公开(公告)日:2022-07-14

    申请号:US17712169

    申请日:2022-04-03

    Abstract: Provided is an image decoding method including determining a predicted quantization parameter of a current quantization group determined according to at least one of block split information and block size information, determining a difference quantization parameter of the current quantization group, determining a quantization parameter of the current quantization group, based on the predicted quantization parameter and the difference quantization parameter of the current quantization group, and inverse quantizing a current block included in the current quantization group, according to the quantization parameter of the current quantization group.

    ARTIFICIAL INTELLIGENCE (AI) ENCODING APPARATUS AND METHOD AND AI DECODING APPARATUS AND METHOD FOR REGION OF OBJECT OF INTEREST IN IMAGE

    公开(公告)号:US20230276070A1

    公开(公告)日:2023-08-31

    申请号:US18195221

    申请日:2023-05-09

    CPC classification number: H04N19/59 H04N19/124 H04N19/188

    Abstract: An artificial intelligence (AI) encoding apparatus includes a memory storing one or more instructions, and a processor configured to execute the one or more instructions stored in the memory to identify an object region of interest in an original image, obtain, from the original image, a plurality of original part images respectively including the object region of interest and a non-interest region, obtain a plurality of first images by performing AI scaling on the plurality of original part images through a scaling neural network (NN) that is configured to operate with NN setting information selected from among a plurality of pieces of NN setting information, at least based on whether the plurality of original part images include the object region of interest or the non-interest region, generate image data by encoding the plurality of first images, and transmit the image data, and AI data including information related to the AI scaling.

    METHOD AND DEVICE FOR PERFORMING ARTIFICIAL INTELLIGENCE ENCODING AND ARTIFICIAL INTELLIGENCE DECODING

    公开(公告)号:US20230281755A1

    公开(公告)日:2023-09-07

    申请号:US18195182

    申请日:2023-05-09

    CPC classification number: G06T3/4046 G06T5/006 G06T2207/20024

    Abstract: An artificial intelligence (AI) encoding apparatus, including a memory configured to store instructions; and at least one processor configured to execute the instructions to: obtain an original image, previously-encoded frame information, and network environment information; obtain deblocking filter setting information, based on the original image, the previously-encoded frame information, and the network environment information; perform deblocking filtering to the original image, based on the deblocking filter setting information to obtain a deblocking-filtered original image; obtain an AI-downscaled first image by providing the deblocking-filtered original image a downscaling deep neural network (DNN); generate image data by performing first encoding on the AI-downscaled first image; and transmit the deblocking filter setting information, AI data including information related to the AI downscaling, and the image data

    ENCODING METHOD AND APPARATUS THEREFOR, AND DECODING METHOD AND APPARATUS THEREFOR

    公开(公告)号:US20220224929A1

    公开(公告)日:2022-07-14

    申请号:US17712174

    申请日:2022-04-03

    Abstract: Provided is an image decoding method including determining a predicted quantization parameter of a current quantization group determined according to at least one of block split information and block size information, determining a difference quantization parameter of the current quantization group, determining a quantization parameter of the current quantization group, based on the predicted quantization parameter and the difference quantization parameter of the current quantization group, and inverse quantizing a current block included in the current quantization group, according to the quantization parameter of the current quantization group.

    ENCODING METHOD AND APPARATUS THEREFOR, AND DECODING METHOD AND APPARATUS THEREFOR

    公开(公告)号:US20220224931A1

    公开(公告)日:2022-07-14

    申请号:US17712180

    申请日:2022-04-03

    Abstract: Provided is an image decoding method including determining a predicted quantization parameter of a current quantization group determined according to at least one of block split information and block size information, determining a difference quantization parameter of the current quantization group, determining a quantization parameter of the current quantization group, based on the predicted quantization parameter and the difference quantization parameter of the current quantization group, and inverse quantizing a current block included in the current quantization group, according to the quantization parameter of the current quantization group.

    ENCODING METHOD AND APPARATUS THEREFOR, AND DECODING METHOD AND APPARATUS THEREFOR

    公开(公告)号:US20220224930A1

    公开(公告)日:2022-07-14

    申请号:US17712175

    申请日:2022-04-03

    Abstract: Provided is an image decoding method including determining a predicted quantization parameter of a current quantization group determined according to at least one of block split information and block size information, determining a difference quantization parameter of the current quantization group, determining a quantization parameter of the current quantization group, based on the predicted quantization parameter and the difference quantization parameter of the current quantization group, and inverse quantizing a current block included in the current quantization group, according to the quantization parameter of the current quantization group.

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