公开(公告)号：US20250113047A1

公开(公告)日：2025-04-03

申请号：US18980549

申请日：2024-12-13

Applicant: Texas Instruments Incorporated

Inventor： Hyung Joon Kim ,  Minhua Zhou ,  Akira Osamoto ,  Hideo Tamama

IPC: H04N19/192 ,  H04N19/103 ,  H04N19/107 ,  H04N19/119 ,  H04N19/147 ,  H04N19/169 ,  H04N19/176 ,  H04N19/51 ,  H04N19/52 ,  H04N19/593

Abstract: A method for coding unit partitioning in a video encoder is provided that includes performing intra-prediction on each permitted coding unit (CU) in a CU hierarchy of a largest coding unit (LCU) to determine an intra-prediction coding cost for each permitted CU, storing the intra-prediction coding cost for each intra-predicted CU in memory, and performing inter-prediction, prediction mode selection, and CU partition selection on each permitted CU in the CU hierarchy to determine a CU partitioning for encoding the LCU, wherein the stored intra-prediction coding costs for the CUs are used.

公开(公告)号：US12256087B2

公开(公告)日：2025-03-18

申请号：US18217706

申请日：2023-07-03

Applicant: TEXAS INSTRUMENTS INCORPORATED

Inventor： Hyung Joon Kim

IPC: H04N19/176 ,  H04N19/119 ,  H04N19/14

Abstract: A method for determining coding unit (CU) partitioning of a largest coding unit (LCU) of a picture is provided that includes computing a first statistical measure and a second statistical measure for the LCU, selecting the LCU as the CU partitioning when the first statistical measure does not exceed a first threshold and the second statistical measure does not exceed a second threshold, and selecting CUs in one or more lower layers of a CU hierarchy of the LCU to form the CU partitioning when the first statistical measure exceeds the first threshold and/or the second statistical measure exceeds the second threshold.

公开(公告)号：US12170782B2

公开(公告)日：2024-12-17

申请号：US17896174

申请日：2022-08-26

Applicant: Texas Instruments Incorporated

Inventor： Hyung Joon Kim

IPC: H04N19/176 ,  H04N19/107 ,  H04N19/109 ,  H04N19/119 ,  H04N19/147 ,  H04N19/96

Abstract: A method for determining intra-prediction modes for prediction units (PUs) of a largest coding unit (LCU) is provided that includes determining an intra-prediction mode for each child PU of a PU, and selecting an intra-prediction mode for the PU based on the intra-prediction modes determined for the child PUs.

公开(公告)号：US11589060B2

公开(公告)日：2023-02-21

申请号：US17193409

申请日：2021-03-05

Applicant: Texas Instruments Incorporated

Inventor： Hyung Joon Kim ,  Minhua Zhou ,  Akira Osamoto ,  Hideo Tamama

IPC: H04N19/192 ,  H04N19/119 ,  H04N19/147 ,  H04N19/176 ,  H04N19/51 ,  H04N19/593 ,  H04N19/107 ,  H04N19/169 ,  H04N19/52 ,  H04N19/103

Abstract: A method for coding unit partitioning in a video encoder is provided that includes performing intra-prediction on each permitted coding unit (CU) in a CU hierarchy of a largest coding unit (LCU) to determine an intra-prediction coding cost for each permitted CU, storing the intra-prediction coding cost for each intra-predicted CU in memory, and performing inter-prediction, prediction mode selection, and CU partition selection on each permitted CU in the CU hierarchy to determine a CU partitioning for encoding the LCU, wherein the stored intra-prediction coding costs for the CUs are used.

公开(公告)号：US20220417534A1

公开(公告)日：2022-12-29

申请号：US17896174

申请日：2022-08-26

Applicant: Texas Instruments Incorporated

Inventor： Hyung Joon Kim

IPC: H04N19/176 ,  H04N19/147 ,  H04N19/107 ,  H04N19/109 ,  H04N19/96 ,  H04N19/119

Abstract: A method for determining intra-prediction modes for prediction units (PUs) of a largest coding unit (LCU) is provided that includes determining an intra-prediction mode for each child PU of a PU, and selecting an intra-prediction mode for the PU based on the intra-prediction modes determined for the child PUs.

公开(公告)号：US20210136389A1

公开(公告)日：2021-05-06

申请号：US17088346

申请日：2020-11-03

Applicant: Texas Instruments Incorporated

Inventor： Hyung Joon Kim

IPC: H04N19/176 ,  H04N19/147 ,  H04N19/107 ,  H04N19/109 ,  H04N19/96 ,  H04N19/119

Abstract: A method for determining intra-prediction modes for prediction units (PUs) of a largest coding unit (LCU) is provided that includes determining an inter-prediction mode for each child PU of a PU, and selecting an intra-prediction mode for the PU based on the intra-prediction modes determined for the child PUs.

公开(公告)号：US20190394474A1

公开(公告)日：2019-12-26

申请号：US16559788

申请日：2019-09-04

Applicant: Texas Instruments Incorporated

Inventor： Hyung Joon Kim ,  Minhua Zhou ,  Akira Osamoto ,  Hideo Tamama

IPC: H04N19/192

Abstract: A method for coding unit partitioning in a video encoder is provided that includes performing intra-prediction on each permitted coding unit (CU) in a CU hierarchy of a largest coding unit (LCU) to determine an intra-prediction coding cost for each permitted CU, storing the intra-prediction coding cost for each intra-predicted CU in memory, and performing inter-prediction, prediction mode selection, and CU partition selection on each permitted CU in the CU hierarchy to determine a CU partitioning for encoding the LCU, wherein the stored intra-prediction coding costs for the CUs are used.

公开(公告)号：US10178385B2

公开(公告)日：2019-01-08

申请号：US15785236

申请日：2017-10-16

Applicant: Texas Instruments Incorporated

Inventor： Ranga Ramanujam Srinivasan ,  Hyung Joon Kim ,  Akira Osamoto

IPC: H04N19/11 ,  H04N19/176 ,  H04N19/119 ,  H04N19/147 ,  H04N19/157 ,  H04N19/174 ,  H04N19/33 ,  H04N19/593 ,  H04N19/136 ,  H04N19/61

Abstract: Several systems and methods for intra-prediction estimation of video pictures are disclosed. In an embodiment, the method includes accessing four ‘N×N’ pixel blocks comprising luma-related pixels. The four ‘N×N’ pixel blocks collectively configure a ‘2N×2N’ pixel block. A first pre-determined number of candidate luma intra-prediction modes is accessed for each of the four ‘N×N’ pixel blocks. A presence of one or more luma intra-prediction modes that are common among the candidate luma intra-prediction modes of at least two of the four ‘N×N’ pixel blocks is identified. The method further includes performing, based on the identification, one of (1) selecting a principal luma intra-prediction mode for the ‘2N×2N’ pixel block and (2) limiting a partitioning size to a ‘N×N’ pixel block size for a portion of the video picture corresponding to the ‘2N×2N’ pixel block.