Patents by Inventor Ru-Ling Liao

Ru-Ling Liao 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).

  • Publication number: 20240205447
    Abstract: A method for performing motion compensation includes: receiving a first wrap-around motion compensation flag associated with one or more pictures, and a second wrap-around motion compensation flag associated with a sequence of pictures; and determining whether the first wrap-around motion compensation flag is equal to a first value or a second value based on the second wrap-around motion compensation flag or a luma coding tree block size: when the second wrap-around motion compensation flag is equal to the second value, determining the first wrap-around motion compensation flag equal to the second value, or when the luma coding tree block size in unit of minimum coding block plus 1 is greater than a picture width in unit of minimum coding block minus 1, determining the first wrap-around motion compensation flag is equal to the second value.
    Type: Application
    Filed: February 28, 2024
    Publication date: June 20, 2024
    Inventors: Jie CHEN, Yan YE, Ru-Ling LIAO, Jiancong LUO
  • Publication number: 20240205420
    Abstract: An encoder encodes a video, and includes: circuitry; and memory coupled to the circuitry. Using the memory, the circuitry: obtains at least two items of prediction information for a first partition included in the video; derives at least one template from neighboring samples which neighbor the first partition; calculates at least two costs, using the at least one template and the at least two items of prediction information; using the at least two costs, (i) determines at least one splitting direction for the first partition or (ii) assigns one of the at least two items of prediction information to a second partition split from the first partition according to the splitting direction, and another thereof to a third partition split from the first partition according to the splitting direction; and encodes the first partition according to the splitting direction and the at least two items of prediction information.
    Type: Application
    Filed: February 29, 2024
    Publication date: June 20, 2024
    Inventors: Kiyofumi ABE, Takahiro NISHI, Tadamasa TOMA, Ryuichi KANOH, Chong Soon LIM, Ru Ling LIAO, Hai Wei SUN, Sughosh Pavan SHASHIDHAR, Han Boon TEO, Jing Ya LI
  • Patent number: 12015788
    Abstract: The present disclosure provides systems and methods for signaling and using a palette mode in video processing. According to certain disclosed embodiments, an exemplary video processing method includes: receiving a first palette entry for palette coding a target coding unit (CU); determining whether the target CU is part of a single-tree slice; determining whether the target CU is coded with separate luma and chroma trees; and in response to the target CU being determined to be part of a single-tree slice and be coded with separate luma and chroma trees, decoding a first component of the target CU based on the first palette entry, and decoding a second component of the target CU based on a default palette entry.
    Type: Grant
    Filed: September 16, 2022
    Date of Patent: June 18, 2024
    Assignee: Alibaba Group Holding Limited
    Inventors: Mohammed Golam Sarwer, Ru-Ling Liao, Yan Ye, Jiancong Luo, Jie Chen
  • Publication number: 20240196005
    Abstract: An encoder, when sub-block encoding is to be performed, determines a plurality of sub-blocks in a first image block, the plurality of sub-blocks including a first sub-block, determines a first motion vector for the first sub-block by referring to a first candidate list, performs first inter prediction processing on the first sub-block using the first motion vector, and encodes the first image block using a result of the first inter prediction processing. When partition encoding is to be performed, the encoder, in operation, determines a plurality of partitions in a second image block, the plurality of partitions including a first partition, determines a second motion vector for the first partition by referring to a second candidate list, performs second inter prediction processing on the first partition using the second motion vector, and encodes the second image block using a result of the second inter prediction processing.
    Type: Application
    Filed: February 23, 2024
    Publication date: June 13, 2024
    Inventors: Kiyofumi ABE, Takahiro NISHI, Tadamasa TOMA, Ryuichi KANOH, Chong Soon LIM, Ru Ling LIAO, Hai Wei SUN, Sughosh Pavan SHASHIDHAR, Han Boon TEO, Jing Ya LI
  • Publication number: 20240187570
    Abstract: A video processing method includes: determining whether an inter predictor correction is enabled for a coding block; and when the inter predictor correction is enabled for the coding block, performing the inter predictor correction by: obtaining a plurality of predicted samples from a top boundary and a left boundary of a predicted block corresponding to the coding block; obtaining a plurality of reconstructed samples from top neighboring reconstructed samples and left neighboring reconstructed samples of the coding block; and deriving a corrected predicted block based on the plurality of the predicted samples, the plurality of the reconstructed samples and the predicted block.
    Type: Application
    Filed: February 14, 2024
    Publication date: June 6, 2024
    Inventors: Xinwei LI, Jie CHEN, Ru-Ling LIAO, Yan YE
  • Patent number: 12003738
    Abstract: The present disclosure provides methods and apparatuses for signaling subpicture partitioning information. An exemplary method includes: determining, according to a subpicture information present flag signaled in a bitstream, whether the bitstream comprises subpicture information; and in response to the bitstream comprising the subpicture information, signaling in the bitstream at least one of: a number of subpictures in a picture, a width, a height, a position, and an identifier (ID) mapping of a target subpicture, a subpic_treated_as_pic_flag, and a loop_filter_across_subpic_enabled_flag.
    Type: Grant
    Filed: October 24, 2022
    Date of Patent: June 4, 2024
    Assignee: Alibaba Group Holding Limited
    Inventors: Jie Chen, Yan Ye, Jiancong Luo, Ru-Ling Liao
  • Publication number: 20240179341
    Abstract: An encoder which includes circuitry and memory. Using the memory, the circuitry generates a list which includes candidates for a first motion vector for a first partition. The list has a maximum list size and an order of the candidates, and at least one of the maximum list size or the order of the candidates is dependent on at least one of a partition size or a partition shape of the first partition. The circuitry selects the first motion vector from the candidates included in the list; encodes an index indicating the first motion vector among the candidates in the list into the bitstream based on the maximum list size; and generates the predicted image for the first partition using the first motion vector.
    Type: Application
    Filed: February 6, 2024
    Publication date: May 30, 2024
    Inventors: Chong Soon LIM, Hai Wei Sun, Sughosh Pavan Shashidhar, Han Boon Teo, Ru Ling Liao, Jing Ya Li, Tadamasa Toma, Takahiro Nishi, Kiyofumi Abe, Ryuichi Kanoh
  • Patent number: 11997271
    Abstract: An encoder partitions into blocks using a set of block partition modes. The set of block partition modes includes a first partition mode for partitioning a first block, and a second block partition mode for partitioning a second block which is one of blocks obtained after the first block is partitioned. When the number of partitions of the first block partition mode is three, the second block is a center block among the blocks obtained after partitioning the first block, and the partition direction of the second block partition mode is same as the partition direction of the first block partition mode, the second block partition mode indicates that the number of partitions is only three. A parameter for identifying the second block partition mode includes a first flag indicating a horizontal or vertical partition direction, and does not include a second flag indicating the number of partitions.
    Type: Grant
    Filed: November 15, 2022
    Date of Patent: May 28, 2024
    Assignee: PANASONIC INTELLECTUAL PROPERTY CORPORATION OF AMERICA
    Inventors: Tadamasa Toma, Takahiro Nishi, Kiyofumi Abe, Ryuichi Kanoh, Chong Soon Lim, Sughosh Pavan Shashidhar, Ru Ling Liao, Hai Wei Sun, Han Boon Teo, Jing Ya Li
  • Publication number: 20240163431
    Abstract: Provided is an encoder which includes circuitry and memory. Using the memory, the circuitry splits an image block into a plurality of partitions, obtains a prediction image for a partition, and encodes the image block using the prediction image. When the partition is not a non-rectangular partition, the circuitry obtains (i) a first prediction image for the partition, (ii) a gradient image for the first prediction image, and (iii) a second prediction image as the prediction image using the first prediction image and the gradient image. When the partition is a non-rectangular partition, the circuitry obtains the first prediction image as the prediction image without using the gradient image.
    Type: Application
    Filed: January 19, 2024
    Publication date: May 16, 2024
    Inventors: Kiyofumi ABE, Takahiro NISHI, Tadamasa TOMA, Ryuichi KANOH, Chong Soon LIM, Ru Ling LIAO, Hai Wei SUN, Sughosh Pavan SHASHIDHAR, Han Boon TEO, Jing Ya LI
  • Patent number: 11985349
    Abstract: An encoder capable of properly handling an image to be encoded or decoded includes processing circuitry and memory connected to the processing circuitry. Using the memory, the processing circuitry: obtains parameters including at least one of (i) one or more parameters related to a first process for correcting distortion in an image captured with a wide angle lens and (ii) one or more parameters related to a second process for stitching a plurality of images; generates an encoded image by encoding a current image to be processed that is based on the image or the plurality of images; and writes the parameters into a bitstream including the encoded image.
    Type: Grant
    Filed: July 12, 2021
    Date of Patent: May 14, 2024
    Assignee: PANASONIC INTELLECTUAL PROPERTY CORPORATION OF AMERICA
    Inventors: Chong Soon Lim, Han Boon Teo, Takahiro Nishi, Tadamasa Toma, Ru Ling Liao, Sughosh Pavan Shashidhar, Hai Wei Sun
  • Patent number: 11985350
    Abstract: An encoder capable of properly handling an image to be encoded or decoded includes processing circuitry and memory connected to the processing circuitry. Using the memory, the processing circuitry: obtains parameters including at least one of (i) one or more parameters related to a first process for correcting distortion in an image captured with a wide angle lens and (ii) one or more parameters related to a second process for stitching a plurality of images; generates an encoded image by encoding a current image to be processed that is based on the image or the plurality of images; and writes the parameters into a bitstream including the encoded image.
    Type: Grant
    Filed: July 12, 2021
    Date of Patent: May 14, 2024
    Assignee: PANASONIC INTELLECTUAL PROPERTY CORPORATION OF AMERICA
    Inventors: Chong Soon Lim, Han Boon Teo, Takahiro Nishi, Tadamasa Toma, Ru Ling Liao, Sughosh Pavan Shashidhar, Hai Wei Sun
  • Publication number: 20240155158
    Abstract: Embodiments of the present disclosure provides systems and methods for processing video content. The methods include: reconstructing a chroma block based on a plurality of luma samples associated with the chroma block, wherein reconstructing the chroma block includes: determining whether the chroma block has non-zero chroma residuals; and in response to a determination that the chroma block has no non-zero chroma residuals, bypassing a process of averaging the plurality of luma samples, wherein the process of averaging is used for reconstructing the chroma block.
    Type: Application
    Filed: December 29, 2023
    Publication date: May 9, 2024
    Inventors: Yan YE, Jie CHEN, Ru-Ling LIAO
  • Publication number: 20240146932
    Abstract: A video decoding method using a subblock temporal motion prediction for regular inter mode (sbAmvp mode). The method includes: receiving a bitstream comprising one or more syntax elements signaling coding unit (CU) level motion information associated with a CU, wherein the CU is encoded using regular inter mode; dividing the CU into a plurality of subblocks; and performing the sbAmvp mode on the plurality of subblocks.
    Type: Application
    Filed: October 16, 2023
    Publication date: May 2, 2024
    Inventors: Ru-ling LIAO, Jie CHEN, Yan YE, Xinwei LI
  • Patent number: 11968360
    Abstract: The present disclosure provides a computer-implemented method for encoding video. The method includes: receiving a video frame for processing; generating one or more coding units of the video frame; and processing one or more coding units using one or more palette predictors having palette entries, wherein each palette entry of the one or more palette predictors has a corresponding reuse flag, and wherein a number of reuse flags for each palette predictor is set to a fixed number for a corresponding coding unit.
    Type: Grant
    Filed: March 31, 2021
    Date of Patent: April 23, 2024
    Assignee: Alibaba Group Holding Limited
    Inventors: Ru-Ling Liao, Mohammed Golam Sarwer, Yan Ye, Xuan Huang
  • Publication number: 20240129523
    Abstract: An encoder includes circuitry and memory. Using the memory, the circuitry, in operation, selects an encoding mode from among candidates including a decoder-side motion vector refinement (DMVR) encoding mode and a partition encoding mode. When the DMVR encoding mode is selected, the circuitry: obtains a first motion vector for a first image block; derives a second motion vector from the first motion vector using motion search; and generates a prediction image for the first image block using the second motion vector. When the partition encoding mode is selected, the circuitry: determines a plurality of partitions in a second image block; obtains a third motion vector for each partition; and generates a prediction image for the second image block using the third motion vector, without deriving a fourth motion vector from the third motion vector using motion search.
    Type: Application
    Filed: December 19, 2023
    Publication date: April 18, 2024
    Inventors: Kiyofumi ABE, Takahiro NISHI, Tadamasa TOMA, Ryuichi KANOH, Chong Soon LIM, Ru Ling LIAO, Hai Wei SUN, Sughosh Pavan SHASHIDHAR, Han Boon TEO, Jing Ya LI
  • Patent number: 11962804
    Abstract: An encoder capable of properly handling an image to be encoded or decoded includes processing circuitry and memory connected to the processing circuitry. Using the memory, the processing circuitry: obtains parameters including at least one of (i) one or more parameters related to a first process for correcting distortion in an image captured with a wide angle lens and (ii) one or more parameters related to a second process for stitching a plurality of images; generates an encoded image by encoding a current image to be processed that is based on the image or the plurality of images; and writes the parameters into a bitstream including the encoded image.
    Type: Grant
    Filed: July 12, 2021
    Date of Patent: April 16, 2024
    Assignee: PANASONIC INTELLECTUAL PROPERTY CORPORATION OF AMERICA
    Inventors: Chong Soon Lim, Han Boon Teo, Takahiro Nishi, Tadamasa Toma, Ru Ling Liao, Sughosh Pavan Shashidhar, Hai Wei Sun
  • Publication number: 20240121384
    Abstract: An encoder includes circuitry and memory connected to the circuitry. The circuitry: derives an absolute value of a sum of horizontal gradient values; derives, as a first parameter, the total sum of the absolute values of horizontal gradient values; derives, as a second parameter, the total sum of the absolute values of vertical gradient values; derives a horizontal-related pixel difference value; derives, as a third parameter, the total sum of the absolute values of horizontal-related pixel difference values; derives a vertical-related pixel difference value; derives, as a fourth parameter, the total sum of the absolute values of vertical-related pixel difference values; and generates a prediction image using the first to fourth parameters.
    Type: Application
    Filed: December 14, 2023
    Publication date: April 11, 2024
    Inventors: Jing Ya LI, Ru Ling Liao, Chong Soon Lim, Han Boon Teo, Hai Wei Sun, Che Wei Kuo, Kiyofumi Abe, Takahiro Nishi, Tadamasa Toma
  • Patent number: 11956467
    Abstract: An encoder, when sub-block encoding is to be performed, determines a plurality of sub-blocks in a first image block, the plurality of sub-blocks including a first sub-block, determines a first motion vector for the first sub-block by referring to a first candidate list, performs first inter prediction processing on the first sub-block using the first motion vector, and encodes the first image block using a result of the first inter prediction processing. When partition encoding is to be performed, the encoder, in operation, determines a plurality of partitions in a second image block, the plurality of partitions including a first partition, determines a second motion vector for the first partition by referring to a second candidate list, performs second inter prediction processing on the first partition using the second motion vector, and encodes the second image block using a result of the second inter prediction processing.
    Type: Grant
    Filed: September 8, 2021
    Date of Patent: April 9, 2024
    Assignee: PANASONIC INTELLECTUAL PROPERTY CORPORATION OF AMERICA
    Inventors: Kiyofumi Abe, Takahiro Nishi, Tadamasa Toma, Ryuichi Kanoh, Chong Soon Lim, Ru Ling Liao, Hai Wei Sun, Sughosh Pavan Shashidhar, Han Boon Teo, Jing Ya Li
  • Patent number: 11956463
    Abstract: A method for performing motion compensation includes: receiving a first wrap-around motion compensation flag associated with one or more pictures and indicating whether horizontal wrap-around motion compensation is enabled for the one or more pictures; and in response to the horizontal wrap-around motion compensation being enabled for the one or more pictures, receiving a parameter associated with a wrap-around motion compensation offset, the wrap-around motion compensation offset being associated with the one or more pictures, wherein a value of the wrap-around motion compensation offset is less than or equal to a difference minus 2, and the difference is obtained by a quotient of a picture width in luma samples divided by a minimum luma coding block size minus a quotient of a luma coding tree block size divided by the minimum luma coding block size.
    Type: Grant
    Filed: December 16, 2022
    Date of Patent: April 9, 2024
    Assignee: Alibaba Group Holding Limited
    Inventors: Jie Chen, Yan Ye, Ru-Ling Liao, Jiancong Luo
  • Publication number: 20240114160
    Abstract: An image decoder includes circuitry and a memory, wherein the circuitry, in operation, calculates first values of a first partition in a current block, using a first motion vector for the first partition; calculates second values of a second partition in the current block, using a second motion vector for the second partition; calculates third values of a set of pixels between the first partition and the second partition, using the first motion vector; calculates fourth values of the set of pixels, using the second motion vector; and weights the third values and the fourth values. A number of pixels in a row in the set of pixels is two or more, and two or more weights applied to the third values increase along the row.
    Type: Application
    Filed: December 7, 2023
    Publication date: April 4, 2024
    Inventors: Kiyofumi ABE, Takahiro NISHI, Tadamasa TOMA, Ryuichi KANOH, Chong Soon LIM, Ru Ling LIAO, Hai Wei SUN, Sughosh Pavan SHASHIDHAR, Han Boon TEO, Jing Ya LI