公开(公告)号：US20130329790A1

公开(公告)日：2013-12-12

申请号：US13913291

申请日：2013-06-07

Applicant: Texas Instruments Incorporated

Inventor： Minhua Zhou

IPC: H04N7/26

CPC classification number: H04N19/105 ,  H04N19/159 ,  H04N19/174 ,  H04N19/186 ,  H04N19/196 ,  H04N19/23 ,  H04N19/46 ,  H04N19/503

Abstract: A method for encoding a picture of a video sequence in a bit stream that reduces slice header parsing overhead is provided. The method includes determining weighting factors that may be used for weighted prediction in encoding at least one slice of the picture, wherein a total number of the weighting factors is constrained to not exceed a predetermined threshold number of weighting factors, wherein the threshold number is less than a maximum possible number of weighting factors, and signaling weighted prediction parameters including the weighting factors in a slice header in the bit stream.

Abstract translation: 提供了一种用于对减少片头解析开销的比特流中的视频序列的图像进行编码的方法。 该方法包括确定可以用于对图像的至少一个片段进行编码的加权预测中的加权因子，其中加权因子的总数被限制为不超过预定阈值数量的加权因子，其中阈值数目较少 比最大可能数量的加权因子，以及信令加权预测参数，包括比特流中的片头中的加权因子。

公开(公告)号：US20130188704A1

公开(公告)日：2013-07-25

申请号：US13746063

申请日：2013-01-21

Applicant: TEXAS INSTRUMENTS INCORPORATED

Inventor： Minhua Zhou

IPC: H04N7/26

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.

Abstract translation: 提供了一种用于编码视频序列的方法，其包括在压缩比特流中的信令，使用多个分割模式的子集用于视频序列的一部分的帧间预测，仅使用分割模式的子集来预测 所述视频序列的所述部分以及对应于所述视频序列的所述部分的熵编码分区模式语法元素，其中至少一个分区模式语法元素根据对应于所述分区模式子集的预定二值化二值化，其中， 如果多个划分模式用于帧间预测，则预定二值化与对于将要被使用的最小分割模式语法元素的预定二值化不同。

公开(公告)号：US20130182759A1

公开(公告)日：2013-07-18

申请号：US13784599

申请日：2013-03-04

Applicant: Texas Instruments Incorporated

Inventor： Woo-Shik Kim ,  Madhukar Budagavi ,  Minhua Zhou

IPC: H04N7/26

CPC classification number: H04N19/117 ,  H04N19/82 ,  H04N19/86

Abstract: A method for sample adaptive offset (SAO) filtering in a video encoder is provided that includes estimating SAO parameters for color components of a largest coding unit (LCU) of a picture, wherein estimating SAO parameters includes using at least some non-deblock-filtered reconstructed pixels of the LCU to estimate the SAO parameters, performing SAO filtering on the reconstructed LCU according to the estimated SAO parameters, and entropy encoding SAO information for the LCU in a compressed video bit stream, wherein the SAO information signals the estimated SAO parameters for the LCU.

Abstract translation: 提供了一种用于视频编码器中的采样自适应偏移（SAO）滤波的方法，其包括估计图像的最大编码单元（LCU）的颜色分量的SAO参数，其中估计SAO参数包括使用至少一些非去块滤波 重建像素，以估计SAO参数，根据估计的SAO参数对重建的LCU执行SAO滤波，以及在压缩视频比特流中对LCU进行熵编码SAO信息，其中SAO信息将估计的SAO参数信号发送给 LCU。

公开(公告)号：US20130114715A1

公开(公告)日：2013-05-09

申请号：US13671344

申请日：2012-11-07

Applicant: Texas Instruments Incorporated

Inventor： Ranga Ramanujam Srinivasan ,  Chaitanya Satish Ghone ,  Mihir Narendra Mody ,  Minhua Zhou

IPC: H04N7/32

CPC classification number: H04N19/895 ,  H04N19/107 ,  H04N19/172 ,  H04N19/39 ,  H04N19/65

Abstract: A method is provided that includes receiving pictures of a video sequence in a video encoder, and encoding the pictures to generate a compressed video bit stream that is transmitted to a video decoder in real-time, wherein encoding the pictures includes selecting a picture to be encoded as a delayed duplicate intra-predicted picture (DDI), wherein the picture would otherwise be encoded as an inter-predicted picture (P-picture), encoding the picture as an intra-predicted picture (I-picture) to generate the DDI, wherein the I-picture is reconstructed and stored for use as a reference picture for a decoder refresh picture, transmitting the DDI to the video decoder in non-real time, selecting a subsequent picture to be encoded as the decoder refresh picture, and encoding the subsequent picture in the compressed bit stream as the decoder refresh picture, wherein the subsequent P-picture is encoded as a P-picture predicted using the reference picture.

Abstract translation: 提供了一种方法，其包括接收视频编码器中的视频序列的图像，并对图像进行编码以生成被实时发送到视频解码器的压缩视频比特流，其中编码图像包括选择图像为 编码为延迟重复帧内预测图像（DDI），其中图像将被编码为帧间预测图像（P图像），将图像编码为帧内预测图像（I图像）以生成DDI 其中，I图像被重建和存储以用作解码器刷新图像的参考图像，以非实时的方式将DDI发送到视频解码器，选择待编码的后续图像作为解码器刷新图像，以及编码 压缩比特流中的后续图像作为解码器刷新图像，其中后续P图像被编码为使用参考图片预测的P图像。

公开(公告)号：US20130101036A1

公开(公告)日：2013-04-25

申请号：US13658807

申请日：2012-10-23

Applicant: Texas Instruments Incorporated

Inventor： Minhua Zhou

IPC: H04N7/26

CPC classification number: H04N19/176 ,  H04N19/11 ,  H04N19/157 ,  H04N19/59 ,  H04N19/593

Abstract: A method for processing a prediction unit (PU) to generate predicted samples is provided that includes computing predicted samples for samples of the PU using sample-based angular intra-prediction (SAP) when lossless coding is enabled for the PU, and computing predicted samples for the samples of the PU using block-based angular intra-prediction when lossless coding is not enabled for the PU. Computation of the predicted using SAP includes determining an intra-prediction angle for the PU, and computing a predicted sample for each sample of the samples in the PU based on linear interpolation of two reference samples adjacent to the sample, wherein the two reference samples are selected according to the intra-prediction angle.

Abstract translation: 提供了一种用于处理预测单元（PU）以产生预测样本的方法，其包括当针对PU进行无损编码时，使用基于样本的角度内预测（SAP）来计算PU的采样的预测样本，以及计算预测样本 对于PU的采样，使用基于块的角度内部预测，当PU不启用无损编码时。 使用SAP预测的计算包括确定PU的帧内预测角度，并且基于与样本相邻的两个参考样本的线性内插来计算PU中样本的每个样本的预测样本，其中两个参考样本是 根据帧内预测角度选择。

公开(公告)号：US20250168325A1

公开(公告)日：2025-05-22

申请号：US19031597

申请日：2025-01-18

Applicant: Texas Instruments Incorporated

Inventor： Minhua Zhou

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

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.

公开(公告)号：US20250159161A1

公开(公告)日：2025-05-15

申请号：US19026963

申请日：2025-01-17

Applicant: Texas Instruments Incorporated

Inventor： Minhua Zhou

IPC: H04N19/119 ,  H04N19/157 ,  H04N19/172

Abstract: A method for encoding a picture of a video sequence in a bit stream that constrains tile processing overhead is provided. The method includes computing a maximum tile rate for the video sequence, computing a maximum number of tiles for the picture based on the maximum tile rate, and encoding the picture wherein a number of tiles used to encode the picture is enforced to be no more than the maximum number of tiles.

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：US12231638B2

公开(公告)日：2025-02-18

申请号：US18237068

申请日：2023-08-23

Applicant: TEXAS INSTRUMENTS INCORPORATED

Inventor： Minhua Zhou ,  Mehmet Umut Demircin ,  Madhukar Budagavi

IPC: H04N19/176 ,  H04N19/117 ,  H04N19/124 ,  H04N19/13 ,  H04N19/15 ,  H04N19/159 ,  H04N19/167 ,  H04N19/172 ,  H04N19/184 ,  H04N19/196 ,  H04N19/43 ,  H04N19/463 ,  H04N19/60 ,  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：US12200194B2

公开(公告)日：2025-01-14

申请号：US18201296

申请日：2023-05-24

Applicant: TEXAS INSTRUMENTS INCORPORATED

Inventor： Minhua Zhou

IPC: H04N19/105 ,  H04N19/159 ,  H04N19/174 ,  H04N19/186 ,  H04N19/196 ,  H04N19/23 ,  H04N19/46 ,  H04N19/503

Abstract: A method for encoding a picture of a video sequence in a bit stream that reduces slice header parsing overhead is provided. The method includes determining weighting factors that may be used for weighted prediction in encoding at least one slice of the picture, wherein a total number of the weighting factors is constrained to not exceed a predetermined threshold number of weighting factors, wherein the threshold number is less than a maximum possible number of weighting factors, and signaling weighted prediction parameters including the weighting factors in a slice header in the bit stream.