Lg Electronics Inc.

Vivo Mobile Communication Co., Ltd.

Eunyong Son

Jin Seong Heo

Moonmo Koo

Sehoon Yea

Yongjoon Jeon

Jaewon Sung

Jiwook Jung

Taesup Kim

Seungwook Park

Junghak Nam

Sunmi Yoo Yoo

Hyeongmoon Jang

Chul Keun Kim

Bumshik Lee

Kyuwoon Kim

Seoungwook Park

Jaehyun Lim

Jaeho Lee

Chulkeun Kim

An image encoding/decoding method and apparatus are provided. An image decoding method performed by an image decoding apparatus according to the present disclosure is an image decoding method performed by an image decoding apparatus which reconstructs a VCM bitstream generated by video coding for machine (VCM), and may comprise the steps of determining a purpose of the VCM bitstream; and reconstructing the VCM bitstream on the basis of the determined purpose of the VCM bitstream, wherein the purpose of the VCM bitstream comprises at least one of a machine task and a human task.

Image encoding/decoding method, device, and computer-readable recording medium for signaling purpose of VCM bitstream

A video decoding method performed by a decoding apparatus includes the steps of: deriving control points (CP) for a current block; acquiring movement vectors for the CPs; deriving a sample unit movement vector in the current block on the basis of the acquired movement vectors; and deriving a prediction sample for the current block on the basis of the sample unit movement vector. According to the present invention, it is possible to effectively perform, through sample unit motion vectors, inter-prediction not only in a case where an image in the current block is plane-shifted but also in a case where there are various image distortions.

Inter prediction method and apparatus in video coding system

In the present invention, a method for processing an image on the basis of an intra prediction mode and an apparatus therefor are disclosed. Particularly, the method for processing an image on the basis of an intra prediction mode may comprise the steps of: partitioning a block to be processed, on the basis of an intra prediction mode of the block to be processed; and performing intra prediction for the split block to be processed, wherein the direction in which the block to be processed is split is perpendicular to the prediction direction of the intra prediction mode of the block to be processed.

Method for processing image on basis of intra prediction mode and apparatus therefor

An image encoding/decoding method and apparatus are provided. An image decoding method may comprise obtaining, from a bitstream, a feature set extracted from an input image using an artificial neural network-based feature extraction method, first information on importance of each of a plurality of channels included in the feature set and second information on a quantization method of the feature set, decoding the feature set, the first information and the second information, and dequantizing the decoded feature set based on the decoded first information and the decoded second information. The second information may comprise the number of quantization bits of each of the plurality of channels, and the number of quantization bits may be determined based on the importance of each of the plurality of channels.

Image encoding/decoding method and device for performing feature quantization/ de-quantization, and recording medium for storing bitstream

A video transmission method according to embodiments may comprise the steps of: encoding video data; and transmitting the video data. A video reception method according to embodiments may comprise the steps of: receiving video data; and decoding the video data.

Video transmission method, video transmission device, video reception method, and video reception device

An image encoding/decoding method and apparatus are provided. An image decoding method comprises obtaining, from a bitstream, encoded data of feature information generated by applying an artificial neural network-based feature extraction method to an image, reconstructing feature information by decoding the encoded data of the feature information, and generating analysis data of the image based on the feature information.

Image encoding/decoding method and apparatus for signaling image feature information, and method for transmitting bitstream

A polygon unit-based image processing method, and a device for the same are disclosed. Specifically, a method for decoding an image on the basis of a polygon unit can comprise the steps of: deriving a motion vector predictor for a polygon apex forming the polygon unit; deriving a motion vector for the polygon apex on the basis of a motion vector difference for the polygon apex and the motion vector predictor; and deriving a prediction sample for the polygon unit from a division unit, which is specified by the motion vector, in a reference picture.

Polygon unit-based image processing method, and device for same

An intra prediction mode-based image processing method includes: obtaining, on the basis of the intra prediction mode of a current block, a first prediction sample value and a second prediction sample value by using a reference sample neighboring the current block; and generating a prediction sample for the current block by linear interpolation of the first prediction sample value and the second prediction sample value.

Intra prediction mode-based image processing method and apparatus therefor

An image decoding method, which is performed by a decoding apparatus, includes the steps of: deriving a frequency domain-neighboring block for a neighboring block of a current block in a spatial domain; deriving a frequency domain-prediction block for the current block by applying a prediction pattern to the frequency domain-neighboring block; generating a frequency domain-reconstructed block for the current block on the basis of the frequency domain-prediction block; and generating a reconstructed block for the current block in the spatial domain on the basis of the frequency inverse transform of the frequency domain-reconstructed block. The present invention can generate a prediction block for a current block in a frequency domain, and accordingly can more efficiently reconstruct a complex image.

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Seoul, South Korea

Eunyong Son