公开(公告)号：US12047566B2

公开(公告)日：2024-07-23

申请号：US17524618

申请日：2021-11-11

Applicant: Texas Instruments Incorporated

Inventor： Naveen Srinivasamurthy ,  Mahant Siddaramanna ,  Soyeb Nagori

IPC: H04N19/115 ,  H04N19/149 ,  H04N19/172

CPC classification number: H04N19/115 ,  H04N19/149 ,  H04N19/172

Abstract: A method and system for bit rate control during encoding of multimedia data are disclosed. A change in complexity of a multimedia picture relative to complexity associated with one or more multimedia pictures in a multimedia sequence is determined. A complexity associated with a multimedia picture is determined based on number of bits and an average quantization associated with the multimedia picture. A bit rate is adjusted for encoding the multimedia picture based on the change in complexity of the multimedia picture. The bit rate is increased on determining an increase in complexity of the multimedia picture and is decreased on determining a decrease in complexity of the multimedia picture. Utilization of additional bits during the increase in the bit rate and saving of bits during the decrease in the bit rate are compensated during adjusting of bit rates for encoding subsequent multimedia pictures in the multimedia sequence.

公开(公告)号：US20220224937A1

公开(公告)日：2022-07-14

申请号：US17706607

申请日：2022-03-29

Applicant: Texas Instruments Incorporated

Inventor： Mahant Siddaramanna ,  Yashwant Dutt

IPC: H04N19/527 ,  H04N19/107 ,  H04N19/124 ,  H04N19/174 ,  H04N19/167

Abstract: A video codec for encoding a sequence of video frames divides a video frame area into number of row segments. The Video encoder selects a different set of row segments in each video frame in a set of video frames and encodes the selected set of row segments by intra-prediction. As a result, the selected part of the frame is intra-refreshed. The video codec limits the maximum value of the vertical global motion vector GMVy to zero and video codec adjust the number of row segments in the select set of row segments based on the height of the search range configured for the motion estimation. As a result, the video codec may not refer to an un-refreshed portion in the previous frame for encoding an already refreshed area of the current frame.

公开(公告)号：US20220078414A1

公开(公告)日：2022-03-10

申请号：US17524618

申请日：2021-11-11

Applicant: Texas Instruments Incorporated

Inventor： Naveen Srinivasamurthy ,  Mahant Siddaramanna ,  Soyeb Nagori

IPC: H04N19/115 ,  H04N19/149

Abstract: A method and system for bit rate control during encoding of multimedia data are disclosed. A change in complexity of a multimedia picture relative to complexity associated with one or more multimedia pictures in a multimedia sequence is determined. A complexity associated with a multimedia picture is determined based on number of bits and an average quantization associated with the multimedia picture. A bit rate is adjusted for encoding the multimedia picture based on the change in complexity of the multimedia picture. The bit rate is increased on determining an increase in complexity of the multimedia picture and is decreased on determining a decrease in complexity of the multimedia picture. Utilization of additional bits during the increase in the bit rate and saving of bits during the decrease in the bit rate are compensated during adjusting of bit rates for encoding subsequent multimedia pictures in the multimedia sequence.

公开(公告)号：US11202067B2

公开(公告)日：2021-12-14

申请号：US16901078

申请日：2020-06-15

Applicant: Texas Instruments Incorporated

Inventor： Naveen Srinivasamurthy ,  Mahant Siddaramanna ,  Soyeb Nagori

IPC: H04N19/115 ,  H04N19/149 ,  H04N19/172

Abstract: A method and system for bit rate control during encoding of multimedia data are disclosed. A change in complexity of a multimedia picture relative to complexity associated with one or more multimedia pictures in a multimedia sequence is determined. A complexity associated with a multimedia picture is determined based on number of bits and an average quantization associated with the multimedia picture. A bit rate is adjusted for encoding the multimedia picture based on the change in complexity of the multimedia picture. The bit rate is increased on determining an increase in complexity of the multimedia picture and is decreased on determining a decrease in complexity of the multimedia picture. Utilization of additional bits during the increase in the bit rate and saving of bits during the decrease in the bit rate are compensated during adjusting of bit rates for encoding subsequent multimedia pictures in the multimedia sequence.

公开(公告)号：US20130155320A1

公开(公告)日：2013-06-20

申请号：US13689175

申请日：2012-11-29

Applicant: TEXAS INSTRUMENTS INCORPORATED

Inventor： Mahant Siddaramanna ,  Naveen Srinivasamurthy

IPC: H04N7/01

CPC classification number: H04N7/0122 ,  H04N5/46 ,  H04N21/44008 ,  H04N21/440272

Abstract: A method of improving the perceptual video quality of video sequences containing black bars. Horizontal or vertical black bars caused by a missmatch between the aspect ratio of the encoded video and the display device. The presence of black bars is detected, and the encoding process is adjusted to eliminate visual depredation of the reproduced video.

Abstract translation: 一种提高包含黑条的视频序列的感知视频质量的方法。 由编码视频和显示设备的纵横比之间的匹配引起的水平或垂直黑条。 检测到黑条的存在，并且调整编码处理以消除再现的视频的视觉破坏。

公开(公告)号：US20230231994A1

公开(公告)日：2023-07-20

申请号：US18123417

申请日：2023-03-20

Applicant: Texas Instruments Incorporated

Inventor： Mahant Siddaramanna ,  Naveen Srinivasamurthy ,  Soyeb Nagori

IPC: H04N19/11 ,  H04N19/159 ,  H04N19/176 ,  H04N19/119 ,  H04N19/593 ,  H04N19/14

CPC classification number: H04N19/11 ,  H04N19/159 ,  H04N19/176 ,  H04N19/119 ,  H04N19/593 ,  H04N19/14

Abstract: According to an aspect, a video encoder selects a block of intermediate size from a set of block sizes for intra-prediction estimation for encoding a video signal. A set of neighboring blocks with the intermediate size are tested for combining. If the set of neighboring blocks are determined to be combinable, the video encoder selects a larger block size formed by the tested neighboring blocks for encoding. On the other hand, if the set of neighboring blocks are determined to be not combinable, the video encoder selects a smaller block size from the set of tested neighboring blocks for prediction. According to another aspect of the present disclosure, the best mode for intra-prediction is determined by first intra-predicting a block with intermediate modes in a set of modes. Then the intra-predictions are performed for the neighboring modes of at least one intermediate mode.

公开(公告)号：US11611745B2

公开(公告)日：2023-03-21

申请号：US17165467

申请日：2021-02-02

Applicant: Texas Instruments Incorporated

Inventor： Mahant Siddaramanna ,  Naveen Srinivasamurthy ,  Soyeb Nagori

IPC: H04N19/11 ,  H04N19/159 ,  H04N19/176 ,  H04N19/119 ,  H04N19/593 ,  H04N19/14

Abstract: According to an aspect, a video encoder selects a block of intermediate size from a set of block sizes for intra-prediction estimation for encoding a video signal. A set of neighbouring blocks with the intermediate size are tested for combining. If the set of neighbouring blocks are determined to be combinable, the video encoder selects a larger block size formed by the tested neighbouring blocks for encoding. On the other hand, if the set of neighbouring blocks are determined to be not combinable, the video encoder selects a smaller block size from the set of tested neighbouring blocks for prediction. According to another aspect, the best mode for intra-prediction is determined by first intra-predicting a block with intermediate modes in a set of modes. Then the intra-predictions are performed for the neighbouring modes of at least one intermediate mode.

公开(公告)号：US20210160489A1

公开(公告)日：2021-05-27

申请号：US17165467

申请日：2021-02-02

Applicant: Texas Instruments Incorporated

Inventor： Mahant Siddaramanna ,  Naveen Srinivasamurthy ,  Soyeb Nagori

IPC: H04N19/11 ,  H04N19/159 ,  H04N19/176 ,  H04N19/119 ,  H04N19/593 ,  H04N19/14

Abstract: According to an aspect, a video encoder selects a block of intermediate size from a set of block sizes for intra-prediction estimation for encoding a video signal. A set of neighbouring blocks with the intermediate size are tested for combining. If the set of neighbouring blocks are determined to be combinable, the video encoder selects a larger block size formed by the tested neighbouring blocks for encoding. On the other hand, if the set of neighbouring blocks are determined to be not combinable, the video encoder selects a smaller block size from the set of tested neighbouring blocks for prediction. According to another aspect of the present disclosure, the best mode for intra-prediction is determined by first intra-predicting a block with intermediate modes in a set of modes. Then the intra-predictions are performed for the neighbouring modes of at least one intermediate mode.

公开(公告)号：US10939100B2

公开(公告)日：2021-03-02

申请号：US16011160

申请日：2018-06-18

Applicant: Texas Instruments Incorporated

Inventor： Mahant Siddaramanna ,  Naveen Srinivasamurthy ,  Soyeb Nagori

IPC: H04N19/11 ,  H04N19/159 ,  H04N19/176 ,  H04N19/119 ,  H04N19/593 ,  H04N19/14

Abstract: According to an aspect, a video encoder selects a block of intermediate size from a set of block sizes for intra-prediction estimation for encoding a video signal. A set of neighbouring blocks with the intermediate size are tested for combining. If the set of neighbouring blocks are determined to be combinable, the video encoder selects a larger block size formed by the tested neighbouring blocks for encoding. On the other hand, if the set of neighbouring blocks are determined to be not combinable, the video encoder selects a smaller block size from the set of tested neighbouring blocks for prediction. According to another aspect of the present disclosure, the best mode for intra-prediction is determined by first intra-predicting a block with intermediate modes in a set of modes. Then the intra-predictions are performed for the neighbouring modes of at least one intermediate mode.

公开(公告)号：US10003796B2

公开(公告)日：2018-06-19

申请号：US15213192

申请日：2016-07-18

Applicant: Texas Instruments Incorporated

Inventor： Mahant Siddaramanna ,  Naveen Srinivasamurthy ,  Soyeb Nagori

IPC: H04N19/11 ,  H04N19/159 ,  H04N19/176 ,  H04N19/119 ,  H04N19/593 ,  H04N19/14

CPC classification number: H04N19/11 ,  H04N19/119 ,  H04N19/14 ,  H04N19/159 ,  H04N19/176 ,  H04N19/593

Abstract: According to an aspect, a video encoder selects a block of intermediate size from a set of block sizes for intra-prediction estimation for encoding a video signal. A set of neighboring blocks with the intermediate size are tested for combining. If the set of neighboring blocks are determined to be combinable, the video encoder selects a larger block size formed by the tested neighboring blocks for encoding. On the other hand, if the set of neighboring blocks are determined to be not combinable, the video encoder selects a smaller block size from the set of tested neighboring blocks for prediction. According to another aspect, the best mode for intra-prediction is determined by first intra-predicting a block with intermediate modes in a set of modes. Then the intra-predictions are performed for the neighboring modes of at least one intermediate mode.