知搜-全球专利检索

  1. Login
  2. Sign Up

Search Results

76 records (took 0.022 seconds)

    Methods and apparatus of decoding process for palette syntax
    41.
    发明授权
    Methods and apparatus of decoding process for palette syntax 有权

    公开(公告)号：US09900624B2

    公开(公告)日：2018-02-20

    申请号：US15542739

    申请日：2016-02-05

    Applicant: MEDIATEK INC.

    Inventor： Wang-Lin Lai ,  Jungsun Kim ,  Tzu-Der Chuang ,  Jing Ye ,  Shan Liu

    IPC: H04N19/44 ,  H04N19/86 ,  H04N19/186 ,  H04N19/176 ,  H04N19/70 ,  H04N19/593

    CPC classification number: H04N19/86 ,  H04N19/176 ,  H04N19/186 ,  H04N19/44 ,  H04N19/593 ,  H04N19/70

    Abstract: Methods and apparatus for image or video decoding in a video decoding system are disclosed. Input data associated with a current block coded with palette mode is received to parse a palette predictor run. A position of reused colors in a palette predictor table is computed according to the palette predictor run. A size of the palette predictor table is determined and compared with the position computed according to the palette predictor run to obtain a comparison result. The decoder applies palette decoding to the current block according to the comparison result. If the comparison result indicates the position computed according to the palette predictor run is not within the palette predictor table, the position is changed to a new position to indicate a corresponding reused color for the current block or a decoding process of palette predictor reuse flags is terminated.

    METHOD FOR CONTROLLING LIGHTING ELEMENT AND ASSOCIATED SYSTEM
    43.
    发明申请
    METHOD FOR CONTROLLING LIGHTING ELEMENT AND ASSOCIATED SYSTEM 有权
    控制照明元件及相关系统的方法

    公开(公告)号：US20160174342A1

    公开(公告)日：2016-06-16

    申请号：US14836969

    申请日：2015-08-27

    Applicant: Mediatek Inc.

    Inventor： Chenghao Liu ,  Shan Liu

    IPC: H05B37/02 ,  H05B41/38 ,  H05B33/08

    CPC classification number: H05B37/0272 ,  H05B33/0845 ,  H05B33/0857 ,  Y02B20/46

    Abstract: A method for controlling at least one lighting element includes: setting a dimming speed; determining a dimming level according to the dimming speed; and using the dimming level to perform a stepped dimming operation to brighten or dim the lighting element.

    Abstract translation: 用于控制至少一个照明元件的方法包括：设置调光速度; 根据调光速度确定调光水平; 并且使用调光级别进行阶梯式调光操作以使照明元件变亮或变暗。

    Method and apparatus for intra chroma coding in image and video coding
    44.
    发明授权
    Method and apparatus for intra chroma coding in image and video coding 有权

    公开(公告)号：US12289456B2

    公开(公告)日：2025-04-29

    申请号：US16338514

    申请日：2017-09-28

    Applicant: MEDIATEK INC.

    Inventor： Jing Ye ,  Xiaozhong Xu ,  Shan Liu

    IPC: H04N19/176 ,  H04N19/105 ,  H04N19/11 ,  H04N19/159 ,  H04N19/186 ,  H04N19/593

    Abstract: A method and apparatus for video coding of chroma coded in derived-mode Intra prediction are disclosed. If derived-mode (DM) Intra prediction is selected for a current chroma block, a corresponding luma block area is determined by locating a first upper-left pixel address of the corresponding luma block area corresponding to that of the current chroma block. Further, one or more candidate luma coding modes are determined from a sub-block set consisting of one or more sub-blocks of the corresponding luma block area, where if the sub-block set consists of only one sub-block, the sub-block set excludes a corner sub-block located at a top-left corner of the corresponding luma block area. Additionally, a current chroma Intra mode for the current chroma block is derived based on information comprising the candidate luma coding modes, and Intra-prediction encoding or decoding is applied to the current chroma block using the current chroma Intra mode derived.

    Method and apparatus of video coding with affine motion compensation
    45.
    发明授权
    Method and apparatus of video coding with affine motion compensation 有权

    公开(公告)号：US11375226B2

    公开(公告)日：2022-06-28

    申请号：US16827881

    申请日：2020-03-24

    Applicant: MEDIATEK INC.

    Inventor： Tzu-Der Chuang ,  Ching-Yeh Chen ,  Han Huang ,  Xiaozhong Xu ,  Shan Liu

    IPC: H04N19/513 ,  H04N19/423 ,  H04N19/52 ,  H04N19/537 ,  H04N19/119 ,  H04N19/176 ,  H04N19/58 ,  H04N19/105

    Abstract: An embodiment of the method receives input data associated with a current block in a current picture at a video encoder or receiving a video bitstream corresponding to compressed data including the current block in the current picture at a video decoder, wherein the current block is coded or to be coded in an affine mode according to an affine motion model; calculates and storing affine parameters for a plurality of coded blocks in the current picture; retrieves the affine parameters of one or more coded blocks from the temporal buffer; derives an affine candidate including affine motion vectors using the retrieved affine parameters of the neighboring block; and encodes or decodes the current block by predicting the current block using one or more motion compensated blocks by the derived affine candidate.

    Deriving and signaling a region or viewport in streaming media
    46.
    发明授权
    Deriving and signaling a region or viewport in streaming media 有权

    公开(公告)号：US11197040B2

    公开(公告)日：2021-12-07

    申请号：US15730851

    申请日：2017-10-12

    Applicant: MediaTek Inc.

    Inventor： Xin Wang ,  Wang Lin Lai ,  Lulin Chen ,  Shan Liu

    IPC: H04N21/4728 ,  H04N21/235 ,  H04N19/40 ,  G06T19/00 ,  H04N19/184 ,  H04N13/388 ,  H04N21/845 ,  H04N21/854 ,  H04N21/2343 ,  H04N21/2365

    Abstract: A method or system for supporting dynamic construction of a user selected sub-region (e.g., viewport or region of interest) from other sub-regions of a reference media presentation encodes reference media presentation as component tracks. A streaming decoder receives a streaming media file of the reference media presentation and displays an arbitrarily selected sub-region of the reference media presentation. The streaming media file has a derived track that (i) references one or more of the plurality of component tracks and (ii) specifies a set of operations for constructing media samples based on the media samples of the referenced component tracks. The streaming decoder provides media samples for the selected sub-region by retrieving the referenced component tracks and performing the set of operations specified by the derived track.

    Method of system for video coding using intra block copy mode
    47.
    发明授权
    Method of system for video coding using intra block copy mode 有权

    公开(公告)号：US11146794B2

    公开(公告)日：2021-10-12

    申请号：US15746892

    申请日：2016-07-26

    Applicant: MEDIATEK INC.

    Inventor： Shan Liu ,  Xiaozhong Xu

    IPC: H04N19/159 ,  H04N19/105 ,  H04N19/172 ,  H04N19/174 ,  H04N19/176 ,  H04N19/186 ,  H04N19/52 ,  H04N19/70 ,  H04N19/82

    Abstract: A method and system for video system using coding modes including an Inter prediction mode and an Intra Block Copy (IntraBC) mode are disclosed. A syntax element in a bitstream is determined to indicate whether two versions of a reconstructed current image unit are needed. If two versions of the reconstructed current image unit are needed, a loop-filtered version of the reconstructed current image unit and a non-loop-filter version of the reconstructed current image unit are allowed to be stored and used as reference data. Otherwise, only one version of the reconstructed current image unit is stored as the reference data. According to another method, bi-prediction mode is converted to uni-prediction mode for a certain prediction mode, where the bandwidth exceeds the existing worst case.

    Method and system of decoded picture buffer for intra block copy mode
    48.
    发明授权
    Method and system of decoded picture buffer for intra block copy mode 有权

    公开(公告)号：US11122276B2

    公开(公告)日：2021-09-14

    申请号：US16581077

    申请日：2019-09-24

    Applicant: MEDIATEK INC.

    Inventor： Xiaozhong Xu ,  Shan Liu

    IPC: H04N19/159 ,  H04N19/134 ,  H04N19/152 ,  H04N19/423 ,  H04N19/172 ,  H04N19/82 ,  H04N19/70 ,  H04N19/105 ,  H04N19/58 ,  H04N19/174

    Abstract: A method for a video encoder or decoder using an Intra Block Copy (IntraBC) mode is disclosed. If IntraBC mode is enabled and no loop filter is used for a current picture, a currently decoded reference picture for the current picture is marked as a long-term reference picture before and during decoding of the current picture. The currently decoded reference picture is assigned in reference picture list construction for IntraBC reference of the current picture and buffer fullness for the DPB is calculated before starting decoding the current picture by taking into account of only one reference picture buffer. According to another method, if the maximum DPB size is 1, a variable or a syntax element is set to a target value to impose restriction to use only one picture storage buffer in the DPB to store reference picture for encoding or decoding of a current picture.

    Incremental quality delivery and compositing processing
    49.
    发明授权
    Incremental quality delivery and compositing processing 有权

    公开(公告)号：US10951874B2

    公开(公告)日：2021-03-16

    申请号：US16328382

    申请日：2017-09-01

    Applicant: MEDIATEK INC.

    Inventor： Lulin Chen ,  Shan Liu ,  Xin Wang ,  Wang-Lin Lai

    IPC: H04N13/161 ,  H04N19/33 ,  H04N19/593 ,  H04N13/178 ,  H04N13/139

    Abstract: A media content delivery apparatus that encodes media content as multiple spatial objects is provided. The media content delivery apparatus encodes a first spatial object according to a first set of parameters. The media content delivery apparatus also encodes a second spatial object according to a second set of parameters. The first and second spatial objects are encoded independently. The media content delivery apparatus also generates a metadata based on the first set of parameters, the second set of parameters, and a relationship between the first and second spatial objects. The media content delivery apparatus then transmits or stores the encoded first spatial object, the encoded second spatial object, and the generated metadata.

Patent Agency Ranking