Samsung Electronics Co., Ltd.

Wilus Institute of Standards and Technology Inc.

Humax Co., Ltd.

Sungkyunkwan University

Jaehong Jung

Jinsam Kwak

Geonjung Ko

Dongcheol Kim

JuHyung Son

Juhyung Son

Seunghyun Oh

Jiwoo Lee

Yongseok Lee

Seungjin Kim

Jinman Kim

Gyeongtae Kim

Souksu Jang

Hyeyeong Choi

Kyungmin Lee

Sangdon Jung

Jaehoon Lee

Joomyoung Kim

Yelim Youn

Gihyeok Ha

Jinhyeon Lee

Minsoo Kim

Sangmin Lee

Chisung Bae

Sangjoon Kim

Jung-Hoon Chun

Yoonmyung Lee

Byungki Han

Wonkang Kim

A clock integrated circuit is provided. The clock integrated circuit includes: a first clock generator which includes a crystal oscillator configured to generate a first clock signal; and a second clock generator which includes a resistance-capacitance (RC) oscillator and a first frequency divider, and is configured to: generate a second clock signal using the first frequency divider based on a clock signal output from the RC oscillator; perform a first calibration operation for adjusting a frequency division ratio of the first frequency divider to a first frequency division ratio based on the first clock signal; and perform a second calibration operation for adjusting the first frequency division ratio to a second frequency division ratio based on a sensed temperature.

Clock integrated circuit including heterogeneous oscillators and apparatus including the clock integrated circuit

A video signal processing device comprises a processor configured to: obtain an index of intra prediction mode of a current block, obtain a reference sample line index for the current block, and generate a plurality of reference samples and a plurality of additional reference samples based on a direction of the intra prediction mode. The direction of the intra prediction mode is determined based on the index, and a number of the plurality of additional reference samples determined based on the reference sample line index and/or a ratio of a width of the current block and a height of the current block.

Method and device for processing video signal using MPM configuration method for multiple reference lines

A video signal decoding device comprises a processor, wherein: the processor decodes a sequence parameter set (SPS) raw byte sequence payload (RBSP) syntax included in a bitstream of a video signal, and decodes the bitstream on the basis of the decoding result of the SPS RBSP syntax; the SPS RBSP syntax includes a first syntax element related to the number of one or more sub-pictures configuring one picture, and a second syntax element indicating whether to process a boundary of the one or more sub-pictures as a boundary of the one picture on the basis of the first syntax element; and the second syntax element is parsed only when the number of the one or more sub-pictures is two or more.

Video signal processing method and device therefor

A video signal processing method includes: a step for deriving an intra prediction mode of a current block; a step for constructing a reference sample around the current block; a step for generating a prediction sample of the current block by using the reference sample on the basis of the intra prediction mode; and a step for restoring the current block on the basis of the prediction sample. The step for generating the prediction sample may include: a step for setting a filter flag value which specifies a filter coefficient of an interpolation filter applied to the reference sample on the basis of the width and height of the current block; and a step for performing filtering on the reference sample by using the interpolation filter having the filter coefficient specified by the filter flag.

Video signal processing method and device using intra prediction filtering

A video signal processing method comprises the steps of: receiving information for prediction of a current block; determining whether or not a merge mode is applied to the current block on the basis of the information for prediction; when a merge mode is applied to the current block, obtaining a first syntax element indicating whether or not a combined prediction is applied to the current block, wherein the combined prediction indicates a prediction mode that combines inter-prediction and intra-prediction; generating an inter-prediction block and an intra-prediction block of the current block when the first syntax element indicates that the combined prediction is applied to the current block; and generating a combined prediction block of the current block by weighted-summing the inter-prediction block and the intra-prediction block.

Video signal processing method and apparatus using multi-assumption prediction

Disclosed are a video signal processing method and device whereby a video signal is encoded or decoded. The video signal processing method may comprise the steps of: determining whether an intra sub-partition (ISP) mode is applicable to a current block; if the ISP mode is applicable to the current block, splitting the current block into a plurality of rectangular transform blocks in the horizontal or vertical direction; generating prediction blocks of the transform blocks by carrying out intra prediction on each of the transform blocks; and reconstructing the current block on the basis of residual blocks of the transform blocks, and the prediction blocks.

Intra prediction-based video signal processing method and device

A video signal processing method comprises: obtaining, from a bitstream, a skip parameter (cu_skip_flag) indicating whether a skip mode is applied to a current block; when the skip parameter indicates that a mode is not the skip mode, obtaining, from the bitstream, a merge parameter (merge_flag) indicating whether the current block is coded with a merge mode; and determining whether a coded block flag (CBF) parameter (cu_cbf), which indicates whether a syntax element related to transform is obtained from the bitstream, is obtained, according to a value of the merge parameter, wherein, when the value of the merge parameter indicates the merge mode, the CBF parameter is not obtained from the bitstream and is determined to be a preconfigured value.

Video signal processing method and device for signaling prediction mode

The present disclosure relates to a processing method of a video signal, the processing method comprising the steps of: scaling a transform coefficient for a current block on the basis of an intermediate scaling factor array; when the flag indicates that a low frequency non-separable transform is applied to the current block, obtaining a residual for the current block by applying an inverse transform of a non-separable transform and an inverse transform of a primary transform on the scaled transform coefficient, wherein the primary transform is a transform applied to a residual signal of a spatial domain before the low frequency non-separable transform; and reconstructing the current block on the basis of the residual and a predictor of the current block.

Video signal processing method and apparatus using scaling process

Disclosed is a video signal processing method and device for encoding or decoding a video signal. More specifically, disclosed are a video signal processing method and a video signal processing device for performing the method, the method comprising: obtaining reference line information indicating a reference line for intra prediction of a current block among a plurality of reference lines comprising neighboring samples of the current block; determining, on the basis of the reference line information, an intra prediction mode for the current block among a plurality of intra prediction modes constituting an intra prediction mode set; and decoding the current block on the basis of a plurality of reference samples on the reference line according to the reference line information and the determined intra prediction mode.

Video signal processing method and device

Disclosed are a video signal processing method and apparatus for encoding or decoding a video signal. In more detail, the video signal processing method includes receiving intra prediction mode information for a current block, wherein the intra prediction mode information indicates one of a plurality of intra prediction modes configuring an intra prediction mode set; and decoding the current block based on the received intra prediction mode information, wherein the intra prediction mode set comprises a plurality of angle modes, and the plurality of angle modes comprises a basic angle mode and an extended angle mode, wherein the extended angle mode is signaled based on the basic angle mode.

Video signal processing method and apparatus

The video signal processing method comprises the steps of: downsampling luma components of reconstructed blocks adjacent to a current block; acquiring a maximum luma value from among the downsampled luma components based on a first index; acquiring a next-highest maximum luma value from among the downsampled luma components based on a second index; acquiring a maximum average luma value based on an average value of the maximum luma value and the next-highest maximum luma value; acquiring a next-lowest minimum luma value from among the downsampled luma components based on a third index; acquiring a minimum luma value from among the downsampled luma components based on a fourth index; and acquiring a minimum average luma value based on the next-lowest minimum luma value and the minimum luma value.

Method and device for processing video signal by using cross-component linear model

The present disclosure relates to a method and apparatus for processing a video signal and, more specifically, comprises the steps of: parsing, from a bitstream, an adaptive motion vector resolution (AMVR) enabled flag (sps_amvr_enabled_flag) indicating whether or not adaptive motion vector differential resolution is used; parsing, from the bitstream, an affine enabled flag (sps_affine_enabled_flag) indicating whether or not affine motion compensation is usable; on the basis of the affine enabled flag, determining whether or not the affine motion compensation is usable; when the affine motion compensation is usable, determining, on the basis of the AMVR enabled flag, whether or not the adaptive motion vector differential resolution is used; and, when the adaptive motion vector differential resolution is used, parsing, from the bitstream, an affine AMVR enabled flag (sps_affine_amvr_enabled flag) indicating whether or not the adaptive motion vector differential resolution is usable for the affine motion compensation.

Growing community of inventors

Seoul, South Korea

Jaehong Jung