公开(公告)号：US11134252B2

公开(公告)日：2021-09-28

申请号：US16911984

申请日：2020-06-25

Applicant: Texas Instruments Incorporated

Inventor： Arun Shankar Kudana ,  Soyeb Nagori

IPC: H04N19/194 ,  H04N19/11 ,  H04N19/114 ,  H04N19/142 ,  H04N19/159 ,  H04N19/176 ,  H04N19/593 ,  H04N19/573

Abstract: Systems, methods and computer readable mediums are presented for encoding a stream of input video frames, in which the input video frames are down sampled and the down sampled frames are encoded in a first encoding pass to generate a set of first pass coded frames forming a single first pass I frame and a plurality of first pass P frames formed into first pass sub-groups of pictures (SUB-GOPs). First pass encoding statistics are generated for individual first pass SUB-GOPs, and the statistics are used to encode the input video frames in a second encoding pass to generate a set of second pass coded frames.

公开(公告)号：US20210289233A1

公开(公告)日：2021-09-16

申请号：US17331159

申请日：2021-05-26

Applicant: Texas Instruments Incorporated

Inventor： Soyeb Nagori ,  Shyam Jagannathan ,  Deepak Kumar Poddar ,  Arun Shankar Kudana ,  Pramod Swami ,  Manoj Koul

IPC: H04N19/86 ,  H04N19/176 ,  H04N19/117 ,  H04N19/139 ,  H04N19/82

Abstract: The disclosure provides a noise filter. The noise filter includes a motion estimation (ME) engine. The ME receives a current frame and a reference frame. The current frame comprising a current block and the reference frame includes a plurality of reference blocks. The ME engine generates final motion vectors. The current block comprises a plurality of current pixels. A motion compensation unit generates a motion compensated block based on the final motion vectors and the reference frame. The motion compensated block includes a plurality of motion compensated pixels. A weighted average filter multiplies each current pixel of the plurality of current pixels and a corresponding motion compensated pixel of the plurality of motion compensated pixels with a first weight and a second weight respectively. The weighted average filter generates a filtered block. A blockiness removal unit is coupled to the weighted average filter and removes artifacts in the filtered block.

公开(公告)号：US20210014502A1

公开(公告)日：2021-01-14

申请号：US17035143

申请日：2020-09-28

Applicant: Texas Instruments Incorporated

Inventor： Arun Shankar Kudana ,  Uday Pudipeddi Kiran ,  Anurag Mithalal Jain ,  Soyeb Nagori

IPC: H04N19/152 ,  H04N19/172 ,  H04N19/115

Abstract: Several methods and systems for encoding of multimedia pictures are disclosed. In an embodiment, an occupancy level of a coded picture buffer (CPB) associated with a hypothetical reference decoder (HRD) is estimated at an instant of removal of an access unit corresponding to a multimedia picture from the CPB for decoding the access unit. A number of bits for encoding the multimedia picture is allocated based on the estimated occupancy level of the CPB. The multimedia picture is encoded based on the allocated number of bits.

公开(公告)号：US20200177880A1

公开(公告)日：2020-06-04

申请号：US16781461

申请日：2020-02-04

Applicant: Texas Instruments Incorporated

Inventor： Arun Shankar Kudana ,  Soyeb Nagori

IPC: H04N19/126 ,  H04N19/176 ,  H04N19/139

Abstract: Several methods, systems, and computer program products for quantization of video content are disclosed. In an embodiment, the method includes determining by a processing module, motion information associated with a block of video data of the video content. A degree of randomness associated with the block of video data is determined by the processing module based on the motion information. A value of a quantization parameter (QP) associated with the block of video data is modulated by a quantization module based on the determined degree of randomness.

公开(公告)号：US20170230680A1

公开(公告)日：2017-08-10

申请号：US15495568

申请日：2017-04-24

Applicant: Texas Instruments Incorporated

Inventor： Arun Shankar Kudana ,  Soyeb Nagori

IPC: H04N19/513 ,  H04N19/105

CPC classification number: H04N19/513 ,  H04N19/105 ,  H04N19/112 ,  H04N19/172 ,  H04N19/56 ,  H04N19/58

Abstract: Several methods and systems for estimating motion in a plurality of multimedia pictures are disclosed. In an embodiment, at least one temporal distance between a multimedia picture and one or more reference pictures corresponding to the multimedia picture in a capture order associated with the plurality of multimedia pictures is computed. The at least one temporal distance is computed subsequent to an encoding of the multimedia picture. At least one motion estimation parameter is determined based on the at least one temporal distance. Motion associated with a subsequent multimedia picture to be encoded is estimated based on the at least one motion estimation parameter.

公开(公告)号：US11051046B2

公开(公告)日：2021-06-29

申请号：US16988978

申请日：2020-08-10

Applicant: Texas Instruments Incorporated

Inventor： Soyeb Nagori ,  Shyam Jagannathan ,  Deepak Kumar Poddar ,  Arun Shankar Kudana ,  Pramod Swami ,  Manoj Koul

IPC: H04N19/86 ,  H04N19/176 ,  H04N19/117 ,  H04N19/139 ,  H04N19/82

Abstract: The disclosure provides a noise filter. The noise filter includes a motion estimation (ME) engine. The ME receives a current frame and a reference frame. The current frame comprising a current block and the reference frame includes a plurality of reference blocks. The ME engine generates final motion vectors. The current block comprises a plurality of current pixels. A motion compensation unit generates a motion compensated block based on the final motion vectors and the reference frame. The motion compensated block includes a plurality of motion compensated pixels. A weighted average filter multiplies each current pixel of the plurality of current pixels and a corresponding motion compensated pixel of the plurality of motion compensated pixels with a first weight and a second weight respectively. The weighted average filter generates a filtered block. A blockiness removal unit is coupled to the weighted average filter and removes artifacts in the filtered block.

公开(公告)号：US20200336758A1

公开(公告)日：2020-10-22

申请号：US16920815

申请日：2020-07-06

Applicant: Texas Instruments Incorporated

Inventor： Arun Shankar Kudana ,  Soyeb Nagori

IPC: H04N19/513 ,  H04N19/56 ,  H04N19/105 ,  H04N19/112 ,  H04N19/58

Abstract: Several methods and systems for estimating motion in a plurality of multimedia pictures are disclosed. In an embodiment, at least one temporal distance between a multimedia picture and one or more reference pictures corresponding to the multimedia picture in a capture order associated with the plurality of multimedia pictures is computed. The at least one temporal distance is computed subsequent to an encoding of the multimedia picture. At least one motion estimation parameter is determined based on the at least one temporal distance. Motion associated with a subsequent multimedia picture to be encoded is estimated based on the at least one motion estimation parameter.

公开(公告)号：US20200327342A1

公开(公告)日：2020-10-15

申请号：US16865080

申请日：2020-05-01

Applicant: TEXAS INSTRUMENTS INCORPORATED

Inventor： Arun Shankar Kudana ,  Manu Mathew ,  Soyeb Nagori

IPC: G06K9/00 ,  G06K9/46 ,  G06K9/62

Abstract: Advanced driver assistance systems can be designed to recognize and to classify traffic signs under real time constraints, and under a wide variety of visual conditions. This disclosure provides techniques that employ binary masks extracted by color space segmentation, with a different binary mask generated for each sign shape. Temporal tracking is employed to add robustness to the detection system. The system is generic, and is trainable to the traffic signs used in various countries.

公开(公告)号：US10587878B2

公开(公告)日：2020-03-10

申请号：US16139405

申请日：2018-09-24

Applicant: Texas Instruments Incorporated

Inventor： Arun Shankar Kudana ,  Soyeb Nagori

IPC: H04N19/126 ,  H04N19/139 ,  H04N19/176

Abstract: Several methods, systems, and computer program products for quantization of video content are disclosed. In an embodiment, the method includes determining by a processing module, motion information associated with a block of video data of the video content. A degree of randomness associated with the block of video data is determined by the processing module based on the motion information. A value of a quantization parameter (QP) associated with the block of video data is modulated by a quantization module based on the determined degree of randomness.

公开(公告)号：US10085023B2

公开(公告)日：2018-09-25

申请号：US13633292

申请日：2012-10-02

Applicant: Texas Instruments Incorporated

Inventor： Arun Shankar Kudana ,  Soyeb Nagori

IPC: H04N7/12 ,  H04N19/126 ,  H04N19/139 ,  H04N19/176

CPC classification number: H04N19/126 ,  H04N19/139 ,  H04N19/176

Abstract: Several methods, systems, and computer program products for quantization of video content are disclosed. In an embodiment, the method includes determining by a processing module, motion information associated with a block of video data of the video content. A degree of randomness associated with the block of video data is determined by the processing module based on the motion information. A value of a quantization parameter (QP) associated with the block of video data is modulated by a quantization module based on the determined degree of randomness.