Video signal processing method and device using secondary transform

    公开(公告)号:US11973986B2

    公开(公告)日:2024-04-30

    申请号:US18164460

    申请日:2023-02-03

    申请人: HUMAX CO., LTD.

    摘要: A video signal processing device includes a processor. The processor is configured to obtain a secondary transform kernel for a current block based on an intra prediction mode of the current block to which a secondary transform is applied, to obtain a secondary inverse transformed block by performing a secondary inverse transform on a top-left specific region of the current block using the secondary transform kernel, wherein the secondary inverse transform is an inverse transform of the secondary transform, and the secondary transform is a low frequency non-separable transform, to obtain a residual block of the current block by performing a primary inverse transform on the secondary inverse transformed block, wherein one or more coefficients of the top-left specific region of the current block are derived in a preset scan order and the preset scan order is a 4×4 up-right diagonal scan order regardless of a size of the current block.

    Video signal processing method and apparatus using adaptive motion vector resolution

    公开(公告)号:US11166040B2

    公开(公告)日:2021-11-02

    申请号:US17113215

    申请日:2020-12-07

    摘要: An apparatus for decoding a video signal, the apparatus comprising a processor, wherein the processor is configured to: configure a Motion Vector Prediction (MVP) candidate list for motion compensation of a current block through one of a first method and a second method, acquire a motion vector predictor of the current block, based on the configured MVP candidate list, acquire a motion vector differential value indicating a difference between a motion vector of the current block and the motion vector predictor, modify the motion vector differential value, based on a resolution of the motion vector differential value of the current block, acquire the motion vector of the current block, based on the motion vector predictor and the modified motion vector differential value, and reconstruct the current block, based on the acquired motion vector.

    VIDEO SIGNAL PROCESSING METHOD AND DEVICE USING MOTION COMPENSATION

    公开(公告)号:US20210266583A1

    公开(公告)日:2021-08-26

    申请号:US17314373

    申请日:2021-05-07

    摘要: Disclosed is a video signal processing method comprising the steps of: acquiring a merge index which indicates a candidate for prediction of a current block among a plurality of candidates for the prediction of the current block, which are included in a merge candidate list; acquiring motion information of the current block on the basis of motion information corresponding to the candidate indicated by the merge index; when the motion information of the current block includes a plurality of motion vectors corresponding to a list of different reference pictures, comparing picture order count (POC) differences between each of the reference pictures corresponding to the plurality of motion vectors and the current picture including the current block; correcting the plurality of motion vectors on the basis of a result of the comparison; and reconstructing the current block on the basis of the plurality of corrected motion vectors.

    Apparatus and method for providing various audio environments in multimedia content playback system

    公开(公告)号:US10782928B2

    公开(公告)日:2020-09-22

    申请号:US16212637

    申请日:2018-12-06

    申请人: HUMAX CO., LTD.

    发明人: Byoung Man An

    摘要: An apparatus and method for providing various audio environments in a multimedia content playback system are disclosed. The content processing terminal of the multimedia content playback system includes an audio signal processor for processing the audio source of multimedia content to produce a voice source and a background source, a controller for controlling the audio signal processor to adjust at least one of the voice source and the background source in accordance with a volume control signal, a GUI processor for acquiring a graphical user interface (GUI) component corresponding to the volume control signal, and a display processor for processing the GUI component and providing the processed GUI component to a display device.

    Apparatus and method for providing media services

    公开(公告)号:US10097876B2

    公开(公告)日:2018-10-09

    申请号:US15255050

    申请日:2016-09-01

    申请人: HUMAX CO., LTD

    发明人: Sung Heum Park

    摘要: An embodiment of the invention provides an apparatus for providing a media service while outputting a content. The apparatus includes: a processor; a memory for storing one or more program instructions executed by the processor; and a control signal receiver unit for receiving from a remote control a control signal resulting from a key input made by a user, where the program instructions determine whether the key input is a normal input or a force input by comparing a sensing level, which is associated with a pressure or an area by which the user presses the key, with a preset value; identify the content outputted on the screen when the control signal is received, when the key input is a force input; and execute an operation different from an operation of a normal input for the key, according to a combination of the identified content and the force input.