Patents by Inventor Yi Wen

Yi Wen has filed for patents to protect the following inventions. This listing includes patent applications that are pending as well as patents that have already been granted by the United States Patent and Trademark Office (USPTO).

  • Patent number: 12219125
    Abstract: A method of constraining the operations of certain inter-mode coding tools in the derivation of motion vector candidates for inter-mode coded blocks employed in video coding standards, such as the now-current Versatile Video Coding (VVC), is performed at a computing device. The computing device determines whether one or more of the reference pictures associated with an inter-mode coded block involved in an operation of an inter-mode coding tool are long-term reference pictures, and constrains the operation of the inter-mode coding tool on the inter-mode coded block based on the determination.
    Type: Grant
    Filed: August 13, 2021
    Date of Patent: February 4, 2025
    Assignee: BEIJING DAJIA INTERNET INFORMATION TECHNOLOGY CO., LTD.
    Inventors: Yi-Wen Chen, Xiaoyu Xiu, Xianglin Wang, Tsung-Chuan Ma
  • Publication number: 20250039437
    Abstract: Methods, apparatuses, and non-transitory computer-readable storage mediums are provided for video coding. In one method, a decoder obtains, for a current chroma block, a non-linear model (non-LM) mode and a linear model (LM) mode, and the LM mode includes a cross component linear model (CCLM) mode and a multi-model linear model (MMLM) mode. The decoder then combines the non-LM mode and the LM mode for a multi-hypothesis-based chroma prediction (MCP) for the current chroma block.
    Type: Application
    Filed: August 9, 2024
    Publication date: January 30, 2025
    Applicant: BEIJING DAJIA INTERNET INFORMATION TECHNOLOGY CO., LTD.
    Inventors: Hong-Jheng JHU, Xiaoyu XIU, Yi-Wen CHEN, Wei CHEN, Che-Wei KUO, Ning YAN, Han GAO, Xianglin WANG, Bing YU
  • Publication number: 20250039420
    Abstract: An electronic apparatus performs a method of decoding video data. The method includes receiving, from the video signal, a picture frame that includes a first component and a second component, receiving, from the video signal, a plurality of sample offsets associated with the second component, reconstructing the samples of the first component before a first in-loop filter module, reconstructing the samples of the second component after a second in-loop filter module, determining a classifier for the second component from one or more reconstructed samples of the first component relative to each sample of the second component, selecting a sample offset from the plurality of sample offsets for the second component according to the classifier, and modifying the reconstructed samples of the second component based on the selected sample offset.
    Type: Application
    Filed: October 8, 2024
    Publication date: January 30, 2025
    Inventors: Che-Wei Kuo, Xiaoyu Xiu, Wei Chen, Xianglin Wang, Yi-Wen Chen, Tsung-Chuan Ma, Hong-Jheng Jhu, Bing Yu
  • Publication number: 20250039458
    Abstract: Methods for video decoding and encoding, apparatuses and non-transitory storage media are provided. In one decoding method, the decoder obtains a plurality of prediction samples of neighboring reconstructed samples of a coding unit (CU). Additionally, the decoder reorders a plurality of geometric partition mode (GPM) split modes based on distortion costs between the plurality of prediction samples of the neighboring reconstructed samples associated with each GPM split mode and neighboring reconstructed samples of the CU according to an order table to obtain a reordered list of the plurality of GPM split modes. Furthermore, the decoder obtains a GPM split mode index and then obtains a GPM split mode based on the GPM split mode index and the reordered list of the plurality of GPM split modes. Moreover, the decoder obtains a GPM predictor based on the GPM split mode.
    Type: Application
    Filed: August 15, 2024
    Publication date: January 30, 2025
    Applicant: BEIJING DAJIA INTERNET INFORMATION TECHNOLOGY CO., LTD.
    Inventors: Han GAO, Xiaoyu XIU, Yi-Wen CHEN, Wei CHEN, Hong-Jheng JHU, Ning YAN, Che-Wei KUO, Xianglin WANG, Bing YU
  • Publication number: 20250039457
    Abstract: Methods for video decoding and encoding, apparatuses and non-transitory storage media are provided. In one decoding method, the decoder obtains a geometric partition mode (GPM) blending area index at a certain level associated with a picture, where the GPM blending area index indicates a blending area width from a set of blending area widths. The decoder obtains one or more weighting values that are used to blend prediction samples of a GPM mode based on the blending area width indicated by the GPM blending area index. Furthermore, the decoder obtains a GPM predictor based on the one or more weighting values.
    Type: Application
    Filed: August 12, 2024
    Publication date: January 30, 2025
    Applicant: BEIJING DAJIA INTERNET INFORMATION TECHNOLOGY CO., LTD.
    Inventors: Han GAO, Xiaoyu XIU, Yi-Wen CHEN, Wei CHEN, Hong-Jheng JHU, Ning YAN, Che-Wei KUO, Xianglin WANG, Bing YU
  • Publication number: 20250039377
    Abstract: This disclosure provides a video decoding apparatus and method for transform coefficient sign prediction on a video decoder side. The method may include: receiving, by a decoder, a bitstream comprising encoded data of transform coefficients of a transform block of a video frame; determining, by the decoder, multiple regions in the transform block, where the multiple regions include a sign prediction area for performing the sign prediction and at least one other region; parsing the bitstream, by the decoder, to obtain signs of transform coefficients associated with the multiple regions of the transform block according to a region-based order used to signal the signs of the transform coefficients; estimating, by the decoder, original signs for a set of candidate transform coefficients associated with the sign prediction area of the transform block; and updating the transform coefficients associated with the sign prediction area based on the estimated original signs.
    Type: Application
    Filed: July 17, 2024
    Publication date: January 30, 2025
    Applicant: BEIJING DAJIA INTERNET INFORMATION TECHNOLOGY CO., LTD.
    Inventors: Xiaoyu XIU, Ning YAN, Yi-Wen CHEN, Che-Wei KUO, Wei CHEN, Hong-Jheng JHU, Han GAO, Xianglin WANG, Bing YU
  • Publication number: 20250039463
    Abstract: An electronic apparatus performs a method of decoding video data. The method comprises: receiving, from bitstream, a plurality of syntax elements associated with a coding unit, wherein the plurality of syntax elements indicate a size of the coding unit and a coding tree type of the coding unit; determining a minimum palette mode block size for the coding unit in accordance with the coding tree type of the coding unit; in accordance with a determination that the size of the coding unit is greater than the minimum palette mode block size: receiving, from the bitstream, a palette mode enable flag associated with the coding unit; and decoding, from the bitstream, the coding unit in accordance with the palette mode enable flag.
    Type: Application
    Filed: October 15, 2024
    Publication date: January 30, 2025
    Applicant: BEIJING DAJIA INTERNET INFORMATION TECHNOLOGY CO., LTD.
    Inventors: Hong-Jheng JHU, Yi-Wen Chen, Xiaoyu Xiu, Xianglin Wang, Tsung-Chuan Ma, Bing Yu
  • Publication number: 20250039365
    Abstract: Methods for video decoding and encoding, apparatuses and non-transitory storage media are provided. In one decoding method, the decoder obtains a restricted area that is not adjacent to a current coding unit (CU) according to a value associated with the restricted area. Additionally, the decoder obtains one or more motion vector (MV) candidates from a plurality of non-adjacent CUs to the current CU based on the restricted area. Furthermore, the decoder obtains one or more control point motion vectors (CPMVs) for the current CU based on the one or more MV candidates.
    Type: Application
    Filed: October 16, 2024
    Publication date: January 30, 2025
    Applicant: BEIJING DAJIA INTERNET INFORMATION TECHNOLOGY CO., LTD.
    Inventors: Wei CHEN, Xiaoyu XIU, Yi-Wen CHEN, Hong-Jheng JHU, Che-Wei KUO, Ning YAN, Xianglin WANG, Bing YU
  • Patent number: 12210282
    Abstract: Primer layers having improved reflectivity and thermal insulation properties are provided for use in microencapsulated thermal imaging sheets. Primer layers having a polymeric binder, of about 3% to about 60% by weight, relative to the total weight of the primer layer, of a white particulate, a primer substrate, and hollow particulate particles improve the reflectivity, color development, color density, and thermal insulation of microcapsule imaging sheets including the same. A black back-coat applied to the substrate on a side opposite the primer layer further enhances the Dmax and E10 of microcapsule imaging sheets and prevents premature exposure of microcapsule imaging sheets in stacked media.
    Type: Grant
    Filed: June 6, 2022
    Date of Patent: January 28, 2025
    Assignee: Polaroid IP B.V.
    Inventors: Rong-Chang Liang, Wei You, Yi Wen Chen
  • Publication number: 20250030872
    Abstract: Methods, apparatuses, and non-transitory computer-readable storage mediums are provided for decoding a video signal. A decoder partitions a video picture into a plurality of coding units (CUs) comprising a lossless CU. The decoder may further receive a high-level syntax. The high-level syntax may include, for example, a first flag that indicates whether a residual coding scheme is switchable.
    Type: Application
    Filed: September 26, 2024
    Publication date: January 23, 2025
    Applicant: BEIJING DAJIA INTERNET INFORMATION TECHNOLOGY CO., LTD.
    Inventors: Tsung-Chuan MA, Xianglin WANG, Xiaoyu XIU, Yi-Wen CHEN, Hong-Jheng JHU, Bing YU
  • Publication number: 20250030899
    Abstract: A method for video encoding, a method for video decoding, apparatuses and non-transitory computer-readable storage media thereof are provided. In the method for video decoding, the decoder may obtain one or more filtering parameters, wherein the one or more filtering parameters are from a filtering parameter set comprising a number of similar blocks, a search range, and a window size; obtain, based on the one or more filtering parameters, one or more similar pixels for a first pixel that has been filtered in a picture and the first pixel; and obtain an original pixel associated with the first pixel based on the one or more similar pixels.
    Type: Application
    Filed: September 27, 2024
    Publication date: January 23, 2025
    Applicant: BEIJING DAJIA INTERNET INFORMATION TECHNOLOGY CO., LTD.
    Inventors: Ning YAN, Yi-Wen CHEN, Xiaoyu XIU, Che-Wei KUO, Hong-Jheng JHU, Wei CHEN, Han GAO, Xianglin WANG, Bing YU
  • Publication number: 20250030838
    Abstract: Video coding methods, apparatuses, and non-transitory computer readable mediums are provided. The method includes: obtaining a list of reference pictures comprising a plurality of pictures stored in a buffer, where the plurality of pictures comprise at least a first picture with a first spatial resolution, and a second picture with a second spatial resolution different from the first spatial resolution; obtaining a reference picture from the list of reference pictures; predicting a current picture by using the reference picture with its original spatial resolution without ensuring the reference picture to have a same spatial resolution as the current picture; and generating a bitstream based on a predicted current picture.
    Type: Application
    Filed: October 1, 2024
    Publication date: January 23, 2025
    Applicant: BEIJING DAJIA INTERNET INFORMATION TECHNOLOGY CO., LTD.
    Inventors: Xianglin WANG, Yi-Wen CHEN, Yunfei ZHENG, Xing WEN, Yucong CHEN, Yue HUANG
  • Publication number: 20250024084
    Abstract: A method for video coding is provided. The method includes: setting, by an encoder, a first syntax element in a picture parameter set (PPS) specifying whether a picture corresponding to the PPS comprises more than one network abstraction layer (NAL) units and whether the more than one NAL units have a same NAL unit type; setting, by the encoder, a second syntax element in a picture header (PH) specifying whether the picture corresponding to the PH is an intra random access point (IRAP) picture or a gradual decoding refresh (GDR) picture, where a value of the second syntax element is set based on a value of the first syntax element; and forming, by the encoder, a bitstream with the first syntax element and the second syntax element.
    Type: Application
    Filed: July 19, 2024
    Publication date: January 16, 2025
    Applicant: BEIJING DAJIA INTERNET INFORMATION TECHNOLOGY CO., LTD.
    Inventors: Xiaoyu XIU, Yi-wen CHEN, Tsung-Chuan MA, Hong-Jheng JHU, Wei CHEN, Xianglin WANG, Bing YU
  • Publication number: 20250024060
    Abstract: Methods for video decoding and encoding, apparatuses and non-transitory storage media are provided. In one decoding method, the decoder obtains a plurality of motion vector candidates from a history-based motion vector prediction (HMVP) table, where the plurality of motion vector candidates include a first motion vector constructed candidate and a second motion vector constructed candidate, and the HMVP table stores translational motion information and non-translation motion information. Furthermore, the decoder obtains a virtual block based on the first motion vector constructed candidate and the second motion vector constructed candidate and obtains a plurality of control point motion vectors (CPMVs) for a current block based on a plurality of CPMVs of the virtual block.
    Type: Application
    Filed: September 27, 2024
    Publication date: January 16, 2025
    Applicant: BEIJING DAJIA INTERNET INFORMATION TECHNOLOGY CO., LTD.
    Inventors: Wei CHEN, Xiaoyu XIU, Yi-Wen CHEN, Hong-Jheng JHU, Che-Wei KUO, Ning YAN, Xianglin WANG, Bing YU
  • Publication number: 20250024058
    Abstract: A method for decoding video data. The method comprises: obtaining, from a bitstream, a video block and filter shape information; determining a region to derive a multiple linear regression (MLR) model; obtaining luma and chroma sample values in the region; deriving the MLR model using the luma and chroma sample values in the region based on the filter shape information; predicting each of chroma samples in the video block by applying the MLR model to corresponding luma samples for that chroma sample based on the filter shape information; and obtaining decoded video block using the predicted chroma samples.
    Type: Application
    Filed: July 24, 2024
    Publication date: January 16, 2025
    Applicant: BEIJING DAJIA INTERNET INFORMATION TECHNOLOGY CO., LTD.
    Inventors: Che-Wei KUO, Xiaoyu XIU, Ning YAN, Hong-Jheng JHU, Yi-Wen CHEN, Wei CHEN, Han GAO, Xianglin WANG, Bing YU
  • Publication number: 20250022672
    Abstract: A light-emitting keyboard includes a bracket, keycaps, a circuit layer, a composite light-emitting layer, a spacing layer and an adhesive layer. The keycaps are disposed on the bracket and connected to the bracket. The circuit layer is disposed between the keycaps and the bracket. The composite light-emitting layer is disposed under the bracket, and includes a conductive layer, and light sources. The light sources are electrically connected to a portion of the conductive layer. The spacing layer is disposed between the composite light-emitting layer and the bracket, and includes holes corresponding to the light sources. One of the light sources is located in one of the holes of the spacing layer, and the light source is spaced from a wall of the corresponding hole. The adhesive layer is disposed between the composite light-emitting layer and the bracket, and the adhesive layer is spaced from one of the light sources.
    Type: Application
    Filed: September 27, 2024
    Publication date: January 16, 2025
    Applicants: LITE-ON ELECTRONICS (GUANGZHOU) LIMITED, Lite-On Technology Corporation
    Inventor: Yi-Wen Chen
  • Publication number: 20250024046
    Abstract: Methods, apparatuses, and non-transitory computer-readable storage mediums are provided for video coding. In one method, a decoder obtains a first flag in a transform block (TB), a coding block (CB), a slice, a picture, or a sequence level, wherein the first flag indicates whether signaling of inherited intra mode is enabled on a current video block; and in response to determining that the inherited intra mode is enabled on the current video block based on the first flag, the decoder obtains a second flag that indicates whether the inherited intra mode is used at a signaled level.
    Type: Application
    Filed: August 27, 2024
    Publication date: January 16, 2025
    Applicant: BEIJING DAJIA INTERNET INFORMATION TECHNOLOGY CO., LTD.
    Inventors: Hong-Jheng JHU, Xiaoyu XIU, Yi-Wen CHEN, Wei CHEN, Che-Wei KUO, Ning YAN, Han GAO, Xianglin WANG, Bing YU
  • Patent number: 12200198
    Abstract: A method and a computing device are provided for video coding. The method may include deriving parameter ? and parameter ? for a CCLM mode by using a predetermined number of neighboring reconstructed luma samples and chroma samples in a CU; and generating a final chroma predictor for the chroma samples of the CU by using the parameter ? and the parameter ?.
    Type: Grant
    Filed: October 23, 2023
    Date of Patent: January 14, 2025
    Assignee: BEIJING DAJIA INTERNET INFORMATION TECHNOLOGY CO., LTD.
    Inventors: Yi-Wen Chen, Xianglin Wang, Xiaoyu Xiu
  • Patent number: 12200220
    Abstract: Methods, apparatuses, and non-transitory computer-readable storage mediums are provided for decoding a video block in geometry partition mode (GPM). The method may include partitioning the video block into first and second geometric partitions. The method may include obtaining a first motion vector refinement (MVR) for the first geometric partition. The method may include obtaining a second MVR for the second geometric partition. The method may include obtaining a candidate list that comprises a plurality of motion vectors (MVs). The method may include obtaining a first MV from the candidate list for the first geometric partition. The method may include obtaining a second MV from the candidate list for the second geometric partition. The method may include calculating a third MV by adding the first MV with the first MVR for the first geometric partition. The method may include calculating a fourth MV. The method may include obtaining prediction samples.
    Type: Grant
    Filed: December 2, 2022
    Date of Patent: January 14, 2025
    Assignee: BEIJING DAJIA INTERNET INFORMATION TECHNOLOGY CO., LTD.
    Inventors: Xiaoyu Xiu, Wei Chen, Che-Wei Kuo, Yi-Wen Chen, Tsung-Chuan Ma, Hong-Jheng Jhu, Xianglin Wang, Bing Yu
  • Publication number: 20250016331
    Abstract: Methods for video decoding and encoding, apparatuses and non-transitory storage media are provided. In one decoding method, the decoder obtains a first geometric partition mode (GPM) part and a second GPM part for a coding unit (CU). The decoder disables template matching (TM) based GPM split modes reordering for multiple GPM split modes that are applied to the CU in response to determining that the first GPM part or the second GPM part is predicted with intra prediction. Furthermore, the decoder enables the TM based GPM split modes reordering for the multiple GPM split modes in response to determining that both the first GPM part and the second GPM part are predicted with inter prediction.
    Type: Application
    Filed: July 18, 2024
    Publication date: January 9, 2025
    Applicant: BEIJING DAJIA INTERNET INFORMATION TECHNOLOGY CO., LTD.
    Inventors: Han GAO, Xiaoyu XIU, Yi-Wen CHEN, Wei CHEN, Hong-Jheng JHU, Ning YAN, Che-Wei KUO, Xianglin WANG, Bing YU