公开(公告)号：US12225184B2

公开(公告)日：2025-02-11

申请号：US18214017

申请日：2023-06-26

Applicant: Texas Instruments Incorporated

Inventor： Minhua Zhou

IPC: H04N19/00 ,  H04N19/433

Abstract: A method is provided that includes determining a target picture virtual memory access (VMA) bandwidth rate, wherein the target picture VMA bandwidth rate indicates a maximum VMA bandwidth rate for motion compensation of a picture, and verifying the target picture VMA bandwidth rate for a compressed video bit stream.

公开(公告)号：US20240340435A1

公开(公告)日：2024-10-10

申请号：US18745142

申请日：2024-06-17

Applicant: Texas Instruments Incorporated

Inventor： Minhua Zhou

IPC: H04N19/463 ,  H04N19/109 ,  H04N19/176 ,  H04N19/50 ,  H04N19/625

CPC classification number: H04N19/463 ,  H04N19/109 ,  H04N19/50 ,  H04N19/176 ,  H04N19/625

Abstract: Methods are provided for inter-prediction candidate index coding independent of the construction of the corresponding inter-prediction candidate list, i.e., a merging candidate list or an advanced motion vector predictor list. A maximum allowed number of inter-prediction candidates for an inter-prediction candidate list is used for encoding the inter-prediction candidate index in an encoded bit stream. The maximum allowed number may be pre-determined or may be selected by the encoder and encoded in the bit stream. A decoder may then decode the index using the maximum allowed number of inter-prediction candidates independent of the construction of the corresponding inter-prediction candidate list.

公开(公告)号：US12047584B1

公开(公告)日：2024-07-23

申请号：US18437389

申请日：2024-02-09

Applicant: TEXAS INSTRUMENTS INCORPORATED

Inventor： Minhua Zhou

IPC: H04N13/139 ,  G01C21/34 ,  G05D1/00 ,  G06Q10/02 ,  G06Q50/40 ,  G08G1/127 ,  H04N19/105 ,  H04N19/124 ,  H04N19/13 ,  H04N19/139 ,  H04N19/159 ,  H04N19/513 ,  H04N19/52 ,  H04N19/577 ,  H04N19/61 ,  H04N19/70

CPC classification number: H04N19/139 ,  G01C21/3438 ,  G05D1/0291 ,  G06Q10/02 ,  G06Q50/40 ,  G08G1/127 ,  H04N19/105 ,  H04N19/124 ,  H04N19/13 ,  H04N19/159 ,  H04N19/52 ,  H04N19/521 ,  H04N19/577 ,  H04N19/61 ,  H04N19/70

Abstract: Methods and apparatus for parsing friendly and error resilient merge flag coding in video coding are provided. In some methods, in contrast to merging candidate list size dependent coding of the merge flag in the prior art, a merge flag is always encoded in the encoded bit stream for each inter-predicted prediction unit (PU) that is not encoded using skip mode. In some methods, in contrast to the prior art that allowed the merging candidate list to be empty, one or more zero motion vector merging candidates formatted according to the prediction type of the slice containing a PU are added to the merging candidate list if needed to ensure that the list is not empty and/or to ensure that the list contains a maximum number of merging candidates.

公开(公告)号：US20240146941A1

公开(公告)日：2024-05-02

申请号：US18409147

申请日：2024-01-10

Applicant: Texas Instruments Incorporated

Inventor： Minhua Zhou

IPC: H04N19/176 ,  H04N19/119 ,  H04N19/13 ,  H04N19/147 ,  H04N19/15 ,  H04N19/174

CPC classification number: H04N19/176 ,  H04N19/119 ,  H04N19/13 ,  H04N19/147 ,  H04N19/15 ,  H04N19/174 ,  H04N19/50

Abstract: A method for encoding a video sequence is provided that includes signaling in the compressed bit stream that a subset of a plurality of partitioning modes is used for inter-prediction of a portion of the video sequence, using only the subset of partitioning modes for prediction of the portion of the video sequence, and entropy encoding partitioning mode syntax elements corresponding to the portion of the video sequence, wherein at least one partitioning mode syntax element is binarized according to a pre-determined binarization corresponding to the subset of partitioning modes, wherein the pre-determined binarization differs from a pre-determined binarization for the least one partitioning mode syntax element that would be used if the plurality of partitioning modes is used for inter-prediction.

公开(公告)号：US11956446B2

公开(公告)日：2024-04-09

申请号：US17573688

申请日：2022-01-12

Applicant: TEXAS INSTRUMENTS INCORPORATED

Inventor： Minhua Zhou

IPC: G01C21/34 ,  G05D1/00 ,  G06Q10/02 ,  G06Q50/40 ,  G08G1/127 ,  H04N19/105 ,  H04N19/124 ,  H04N19/13 ,  H04N19/139 ,  H04N19/159 ,  H04N19/513 ,  H04N19/52 ,  H04N19/577 ,  H04N19/61 ,  H04N19/70

CPC classification number: H04N19/139 ,  G01C21/3438 ,  G05D1/0291 ,  G06Q10/02 ,  G06Q50/40 ,  G08G1/127 ,  H04N19/105 ,  H04N19/124 ,  H04N19/13 ,  H04N19/159 ,  H04N19/52 ,  H04N19/521 ,  H04N19/577 ,  H04N19/61 ,  H04N19/70

Abstract: Methods and apparatus for parsing friendly and error resilient merge flag coding in video coding are provided. In some methods, in contrast to merging candidate list size dependent coding of the merge flag in the prior art, a merge flag is always encoded in the encoded bit stream for each inter-predicted prediction unit (PU) that is not encoded using skip mode. In some methods, in contrast to the prior art that allowed the merging candidate list to be empty, one or more zero motion vector merging candidates formatted according to the prediction type of the slice containing a PU are added to the merging candidate list if needed to ensure that the list is not empty and/or to ensure that the list contains a maximum number of merging candidates.

公开(公告)号：US11849154B2

公开(公告)日：2023-12-19

申请号：US17355701

申请日：2021-06-23

Applicant: TEXAS INSTRUMENTS INCORPORATED

Inventor： Woo-Shik Kim ,  Do-Kyoung Kwon ,  Minhua Zhou

IPC: H04N19/00 ,  H04N19/86 ,  H04N19/70 ,  H04N19/117 ,  H04N19/463 ,  H04N19/186 ,  H04N19/82 ,  H04N19/91 ,  H04N19/80

CPC classification number: H04N19/86 ,  H04N19/117 ,  H04N19/186 ,  H04N19/463 ,  H04N19/70 ,  H04N19/80 ,  H04N19/82 ,  H04N19/91

Abstract: Techniques for signaling of sample adaptive offset (SAO) information that may reduce the coding rate for signaling such information in the compressed bit stream are provided. More specifically, techniques are provided that allow SAO information common to two or more of the color components to be signaled using one or more syntax elements (flags or indicators) representative of the common information. These techniques reduce the need to signal SAO information separately for each color component.

公开(公告)号：US20230396768A1

公开(公告)日：2023-12-07

申请号：US18237068

申请日：2023-08-23

Applicant: TEXAS INSTRUMENTS INCORPORATED

Inventor： Minhua Zhou ,  Mehmet Umut Demircin ,  Madhukar Budagavi

IPC: H04N19/124 ,  H04N19/176 ,  H04N19/463 ,  H04N19/196 ,  H04N19/167 ,  H04N19/60 ,  H04N19/172 ,  H04N19/184 ,  H04N19/117 ,  H04N19/13 ,  H04N19/15 ,  H04N19/159 ,  H04N19/43 ,  H04N19/61

CPC classification number: H04N19/124 ,  H04N19/176 ,  H04N19/463 ,  H04N19/196 ,  H04N19/167 ,  H04N19/60 ,  H04N19/172 ,  H04N19/184 ,  H04N19/117 ,  H04N19/13 ,  H04N19/15 ,  H04N19/159 ,  H04N19/43 ,  H04N19/61

Abstract: A method is provided that includes receiving a coded largest coding unit in a video decoder, wherein the coded largest coding unit includes a coded coding unit structure and a plurality of coded quantization parameters, and decoding the coded largest coding unit based on the coded coding unit structure and the plurality of coded quantization parameters.

公开(公告)号：US20230217045A1

公开(公告)日：2023-07-06

申请号：US18120624

申请日：2023-03-13

Applicant: TEXAS INSTRUMENTS INCORPORATED

Inventor： Vivienne Sze ,  Madhukar Budagavi ,  Woo-Shik Kim ,  Do-Kyoung Kwon ,  Minhua Zhou

IPC: H04N19/86 ,  H04N19/70 ,  H04N19/117 ,  H04N19/463 ,  H04N19/82 ,  H04N19/80 ,  H04N19/91

CPC classification number: H04N19/86 ,  H04N19/70 ,  H04N19/117 ,  H04N19/463 ,  H04N19/82 ,  H04N19/80 ,  H04N19/91

Abstract: A method for sample adaptive offset (SAO) filtering and SAO parameter signaling in a video encoder is provided that includes determining SAO parameters for largest coding units (LCUs) of a reconstructed picture, wherein the SAO parameters include an indicator of an SAO filter type and a plurality of SAO offsets, applying SAO filtering to the reconstructed picture according to the SAO parameters, and entropy encoding LCU specific SAO information for each LCU of the reconstructed picture in an encoded video bit stream, wherein the entropy encoded LCU specific SAO information for the LCUs is interleaved with entropy encoded data for the LCUs in the encoded video bit stream. Determining SAO parameters may include determining the LCU specific SAO information to be entropy encoded for each LCU according to an SAO prediction protocol.

公开(公告)号：US11606573B2

公开(公告)日：2023-03-14

申请号：US17243638

申请日：2021-04-29

Applicant: TEXAS INSTRUMENTS INCORPORATED

Inventor： Minhua Zhou

IPC: H04N19/00 ,  H04N19/463 ,  H04N19/50 ,  H04N19/109 ,  H04N19/176 ,  H04N19/625

Abstract: Methods are provided for inter-prediction candidate index coding independent of the construction of the corresponding inter-prediction candidate list, i.e., a merging candidate list or an advanced motion vector predictor list. A maximum allowed number of inter-prediction candidates for an inter-prediction candidate list is used for encoding the inter-prediction candidate index in an encoded bit stream. The maximum allowed number may be pre-determined or may be selected by the encoder and encoded in the bit stream. A decoder may then decode the index using the maximum allowed number of inter-prediction candidates independent of the construction of the corresponding inter-prediction candidate list.

公开(公告)号：US11589040B2

公开(公告)日：2023-02-21

申请号：US17743812

申请日：2022-05-13

Applicant: TEXAS INSTRUMENTS INCORPORATED

Inventor： Minhua Zhou

IPC: H04N19/105 ,  H04N19/52 ,  H04N19/96 ,  H04N19/109 ,  H04N19/463 ,  H04N19/167 ,  H04N19/176 ,  H04N19/44 ,  H04N19/593

Abstract: A method for derivation of a temporal motion data (TMD) candidate for a prediction unit (PU) in video encoding or video decoding is provided. The derived TMD candidate is for inclusion in an inter-prediction candidate list for the PU. The method includes determining a primary TMD position relative to a co-located PU in a co-located largest coding unit (LCU), wherein the co-located PU is a block in a reference picture having a same size, shape, and coordinates as the PU, and selecting at least some motion data of a secondary TMD position as the TMD candidate when the primary TMD position is in a bottom neighboring LCU or in a bottom right neighboring LCU of the co-located LCU, wherein the secondary TMD position is determined relative to the co-located PU.