公开(公告)号：US09380302B2

公开(公告)日：2016-06-28

申请号：US13775064

申请日：2013-02-22

Applicant: Texas Instruments Incorporated

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

IPC: H04N7/26 ,  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.

Abstract translation: 提供了可以降低用于在压缩比​​特流中发送信令的编码率的采样自适应偏移（SAO）信息的信令技术。 更具体地，提供了允许使用表示公共信息的一个或多个语法元素（标志或指示符）来向两个或多个颜色分量公共的SAO信息进行信令的技术。 这些技术减少了为每个颜色分量分别发送SAO信息的需要。

公开(公告)号：US20160150251A1

公开(公告)日：2016-05-26

申请号：US15008888

申请日：2016-01-28

Applicant: TEXAS INSTRUMENTS INCORPORATED

Inventor： Woo-Shik Kim ,  Do-Kyoung Kwon

IPC: H04N19/91 ,  H04N19/80

CPC classification number: H04N19/91 ,  H04N19/117 ,  H04N19/14 ,  H04N19/176 ,  H04N19/182 ,  H04N19/80 ,  H04N19/82

Abstract: A method and apparatus for sample adaptive offset without sign coding. The method includes selecting an edge offset type for at least a portion of an image, classifying at least one pixel of at least the portion of the image into edge shape category, calculating an offset of the pixel, determining the offset is larger or smaller than a predetermined threshold, changing a sign of the offset based on the threshold determination; and performing entropy coding accounting for the sign of the offset and the value of the offset.

Abstract translation: 一种无符号编码的样本自适应偏移的方法和装置。 该方法包括为图像的至少一部分选择边缘偏移类型，将图像的至少部分的至少一个像素分类为边缘形状类别，计算像素的偏移，确定偏移大于或小于 预定阈值，基于所述阈值确定改变所述偏移的符号; 并执行熵编码计算偏移的符号和偏移的值。

公开(公告)号：US20150092865A1

公开(公告)日：2015-04-02

申请号：US14561816

申请日：2014-12-05

Applicant: Texas Instruments Incorporated

Inventor： Do-Kyoung Kwon ,  Hyung Joon Kim ,  Madhukar Budagavi

IPC: H04N19/46 ,  H04N19/51 ,  H04N19/70

CPC classification number: H04N19/46 ,  H04N5/23258 ,  H04N19/102 ,  H04N19/137 ,  H04N19/176 ,  H04N19/51 ,  H04N19/61 ,  H04N19/70

Abstract: A method and apparatus for frame coding in adaptive raster scan order. The method includes encoding at least one of image or video utilizing input frames and at least one of a data related to the input frame to produce bitstream with raster scan order information and displacement information for producing compressed video bitstream, at decoding time, decoding at least one of the encoded bitstream with raster scan order information and displacement information for producing compressed video bitstream.

Abstract translation: 一种用于自适应光栅扫描顺序的帧编码的方法和装置。 该方法包括使用输入帧和与输入帧相关的数据中的至少一个来编码图像或视频中的至少一个，以在解码时产生具有光栅扫描顺序信息和位移信息的位流信息，至少解码 具有光栅扫描顺序信息的编码比特流之一和用于产生压缩视频比特流的位移信息。

公开(公告)号：US20140185691A1

公开(公告)日：2014-07-03

申请号：US14138002

申请日：2013-12-20

Applicant: Texas Instruments Incorporated

Inventor： Do-Kyoung Kwon ,  Madhukar Budagavi

IPC: H04N19/30 ,  H04N19/46

CPC classification number: H04N19/31 ,  H04N19/105 ,  H04N19/156 ,  H04N19/172 ,  H04N19/187 ,  H04N19/33 ,  H04N19/423 ,  H04N19/44 ,  H04N19/46 ,  H04N19/573 ,  H04N19/577

Abstract: A method for encoding a video sequence in a scalable video encoder to generate a scalable bitstream is provided that includes encoding the video sequence in a first layer encoder of the scalable video encoder to generate a first sub-bitstream, encoding the video sequence in a second layer encoder of the scalable video encoder to generate a second sub-bitstream, wherein portions of the video sequence being encoded in the second layer encoder are predicted using reference portions of the video sequence encoded in the first layer encoder, combining the first sub-bitstream and the second sub-bitstream to generate the scalable bitstream, and signaling in the scalable bitstream an indication of a maximum decoded picture buffer (DPB) size needed for decoding the second sub-bitstream and the first sub-bitstream when the second sub-bitstream is a target sub-bitstream for decoding.

Abstract translation: 提供了一种用于对可缩放视频编码器中的视频序列进行编码以生成可分级比特流的方法，其包括对可分级视频编码器的第一层编码器中的视频序列进行编码，以生成第一子比特流，在第二子码流中对视频序列进行编码 所述可分级视频编码器的层编码器生成第二子比特流，其中使用在第一层编码器中编码的视频序列的参考部分来预编码在第二层编码器中的视频序列的部分，将第一子比特流 以及所述第二子比特流，用于生成所述可分级比特流，以及在所述可分级比特流中，当所述第二子比特流在所述第二子比特流中时，对所述第二子比特流进行解码所需的最大解码图像缓冲器（DPB）大小的指示， 是用于解码的目标子比特流。

公开(公告)号：US20140185681A1

公开(公告)日：2014-07-03

申请号：US14137995

申请日：2013-12-20

Applicant: Texas Instruments Incorporated

Inventor： Do-Kyoung Kwon ,  Madhukar Budagavi

IPC: H04N19/33 ,  H04N19/51

CPC classification number: H04N19/31 ,  H04N19/105 ,  H04N19/156 ,  H04N19/172 ,  H04N19/187 ,  H04N19/33 ,  H04N19/423 ,  H04N19/44 ,  H04N19/46 ,  H04N19/573 ,  H04N19/577

Abstract: A method for encoding a video sequence in a scalable video encoder to generate a scalable bitstream is provided that includes encoding the video sequence in a first layer encoder of the scalable video encoder to generate a first sub-bitstream, encoding the video sequence in a second layer encoder of the scalable video encoder to generate a second sub-bitstream, wherein portions of the video sequence being encoded in the second layer encoder are predicted using reference portions of the video sequence encoded in the first layer encoder, combining the first sub-bitstream and the second sub-bitstream in the scalable bitstream, and signaling an indication of a highest temporal level of the first sub-bitstream comprising at least one of the reference portions in the scalable bitstream.

Abstract translation: 提供了一种用于对可缩放视频编码器中的视频序列进行编码以生成可分级比特流的方法，其包括对可分级视频编码器的第一层编码器中的视频序列进行编码，以生成第一子比特流，在第二子码流中对视频序列进行编码 所述可分级视频编码器的层编码器生成第二子比特流，其中使用在第一层编码器中编码的视频序列的参考部分来预编码在第二层编码器中的视频序列的部分，将第一子比特流 以及可伸缩比特流中的第二子比特流，以及信令包括可伸缩比特流中的至少一个参考部分的第一子比特流的最高时间级别的指示。

公开(公告)号：US20250168397A1

公开(公告)日：2025-05-22

申请号：US19028209

申请日：2025-01-17

Applicant: TEXAS INSTRUMENTS INCORPORATED

Inventor： Do-Kyoung Kwon ,  Madhukar Budagavi

IPC: H04N19/567

Abstract: A method for encoding video data is provided that includes determining whether or not a parent coding unit of a coding unit of the video data was predicted in intra-prediction block copy (IntraBC) mode and, when it is determined that the parent coding unit was not predicted in IntraBC mode: computing activity of the coding unit, determining an IntraBC coding cost of the coding unit by computing the IntraBC coding cost of the coding unit using a two dimensional (2D) search when the activity of the coding unit is not than an activity threshold, and computing the IntraBC coding cost of the coding unit using a one dimensional (1D) search when the activity of the coding unit is less than the activity threshold, using the IntraBC coding cost to select an encoding mode from one of a plurality of encoding modes, encoding the coding unit using the selected encoding mode.

公开(公告)号：US12075069B2

公开(公告)日：2024-08-27

申请号：US17477602

申请日：2021-09-17

Applicant: Texas Instruments Incorporated

Inventor： Woo-Shik Kim ,  Do-Kyoung Kwon

IPC: G06K9/36 ,  G06K9/46 ,  H04N19/00 ,  H04N19/182 ,  H04N19/30 ,  H04N19/463 ,  H04N19/82

CPC classification number: H04N19/30 ,  H04N19/00 ,  H04N19/182 ,  H04N19/463 ,  H04N19/82

Abstract: A method and apparatus for image coding using hierarchical sample adaptive band offset. The method includes decoding a signal of a portion of an image, determining a band offset type and offset of a portion of the image, utilizing the band offset type and offset to determine a sub-band, and reconstructing a pixel value according to the determined offset value.

公开(公告)号：US11863758B2

公开(公告)日：2024-01-02

申请号：US17488355

申请日：2021-09-29

Applicant: TEXAS INSTRUMENTS INCORPORATED

Inventor： Do-Kyoung Kwon ,  Hyung-Joon Kim

IPC: H04N19/154 ,  H04N19/172 ,  H04N19/115 ,  H04N19/194

CPC classification number: H04N19/154 ,  H04N19/115 ,  H04N19/172 ,  H04N19/194

Abstract: An embodiment includes a method and an encoder for SSIM-based bits allocation. The encoder includes a memory and a processor utilized for allocating bits based on SSIM, wherein the processor estimates the model parameter of SSIM-based distortion model for the current picture and determines allocates bits based on the SSIM estimation.

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：US20230403403A1

公开(公告)日：2023-12-14

申请号：US18238264

申请日：2023-08-25

Applicant: TEXAS INSTRUMENTS INCORPORATED

Inventor： Do-Kyoung Kwon ,  Madhukar Budagavi

IPC: H04N19/31 ,  H04N19/46 ,  H04N19/423 ,  H04N19/573 ,  H04N19/577

CPC classification number: H04N19/31 ,  H04N19/46 ,  H04N19/423 ,  H04N19/573 ,  H04N19/577 ,  H04N19/105

Abstract: A method for encoding a video sequence in a scalable video encoder to generate a scalable bitstream is provided that includes encoding the video sequence in a first layer encoder of the scalable video encoder to generate a first sub-bitstream, encoding the video sequence in a second layer encoder of the scalable video encoder to generate a second sub-bitstream, wherein portions of the video sequence being encoded in the second layer encoder are predicted using reference portions of the video sequence encoded in the first layer encoder, combining the first sub-bitstream and the second sub-bitstream in the scalable bitstream, and signaling an indication of a highest temporal level of the first sub-bitstream comprising at least one of the reference portions in the scalable bitstream.