公开(公告)号：US11057637B1

公开(公告)日：2021-07-06

申请号：US16775463

申请日：2020-01-29

Applicant: Mellanox Technologies, Ltd. ,  BEAMR IMAGING LTD.

Inventor： Dotan David Levi ,  Assaf Weissman ,  Ohad Markus ,  Uri Gadot ,  Aviad Raveh ,  Tamar Shoham

IPC: H04N19/52 ,  H04N19/177 ,  H04N19/176

Abstract: A video processor includes a memory and a processor. The processor is coupled to memory and is configured to store in the memory (i) multiple raw frames belonging to a Group of Pictures (GOP) to be processed, and (ii) one or more reference frames. The processor is further configured to select for multiple target blocks having a same block-location in respective raw frames associated with a common reference frame, a common search region in the common reference frame, and before selecting another search region, to apply at least two motion estimation operations using at least two of the target blocks and the common search region, to estimate respective at least two Motion Vectors (MVs).

公开(公告)号：US10003799B2

公开(公告)日：2018-06-19

申请号：US14912291

申请日：2014-08-11

Applicant: BEAMR IMAGING LTD

Inventor： Sharon Carmel ,  Dror Gill ,  Tamar Shoham

IPC: H04N19/40 ,  H04N19/124 ,  H04N19/147 ,  H04N19/15 ,  H04N19/177 ,  H04N19/194

CPC classification number: H04N19/124 ,  H04N19/147 ,  H04N19/15 ,  H04N19/177 ,  H04N19/194 ,  H04N19/40

Abstract: A method including obtaining a first plurality of decode-independent segments corresponding to an original video bit-stream, re-encoding each one of the first plurality of decode-independent segments according to a quality criterion, giving rise to a second plurality of decode-independent segments; and generating an output video bitstream including a third plurality of decode-independent segments, wherein each segment in the third plurality of decode-independent segments is selected from either the first plurality of decode-independent segments or from the second plurality of decode-independent segments using a selection criterion that is related at least to a segment's bit-rate.

公开(公告)号：US10362309B2

公开(公告)日：2019-07-23

申请号：US15830190

申请日：2017-12-04

Applicant: BEAMR IMAGING LTD

Inventor： Sharon Carmel ,  Dror Gill ,  Tamar Shoham

IPC: H04N19/14 ,  H04N19/124 ,  H04N19/176 ,  H04N19/60 ,  H04N19/126 ,  H04N19/154 ,  H04N19/17 ,  H04N19/192 ,  H04N19/86 ,  H04N19/182 ,  H04N19/50 ,  H04N19/136 ,  H04N19/625

Abstract: A system and method for generating a second reduced size digital image from a first digital image, the method including iteratively compressing the first digital image to an extent determined by a quality measure comprising at least a blockiness measure quantifying added artifactual edges along coding block bomldaries of the second image and/or use of a quantization matrix generated by computing a weighted average of the quantization matrix of the first digital image and a scaled second quantization matrix.

公开(公告)号：US09942557B2

公开(公告)日：2018-04-10

申请号：US15528473

申请日：2017-01-01

Applicant: BEAMR IMAGING LTD.

Inventor： Sharon Carmel ,  Dror Gill ,  Tamar Shoham ,  Dan Julius ,  Liad Hacmon ,  Lior Mizrahi ,  Udi Yehuda Shrot ,  Amir Leibman ,  Alon Biran ,  Eyal Enav

IPC: H04B1/66 ,  H04N19/189 ,  H04N19/176 ,  H04N19/177 ,  H04N19/154 ,  H04N19/82 ,  H04N19/87 ,  H04N19/61

CPC classification number: H04N19/189 ,  H04N19/115 ,  H04N19/154 ,  H04N19/176 ,  H04N19/177 ,  H04N19/179 ,  H04N19/196 ,  H04N19/61 ,  H04N19/82 ,  H04N19/87

Abstract: A computerized method and system of segment-based video encoding optimization, the method comprising obtaining a set of input segments constituting an input video stream; selecting one or more input segments in accordance with a selection criterion to be one or more representative segments; determining an encoding instruction and obtaining one or more encoded representative segments encoded from the representative segments in accordance with the encoding instruction and using a quality-driven video encoding scheme; determining, based on the encoded representative segments, an encoding configuration, and obtaining one or more encoded input segments encoded from at least a sub-set of the input segments using the encoding configuration; determining an evaluation instruction used to evaluate quality for each encoded input segment; and generating an output video stream, by selecting, for each input segment, a corresponding output segment from a group comprising at least one of the following candidate segments: the input segment, an encoded representative segment, and an encoded input segment.

公开(公告)号：US20180091814A1

公开(公告)日：2018-03-29

申请号：US15830190

申请日：2017-12-04

Applicant: BEAMR IMAGING LTD

Inventor： Sharon Carmel ,  Dror Gill ,  Tamar Shoham

IPC: H04N19/124 ,  H04N19/14 ,  H04N19/625 ,  H04N19/86 ,  H04N19/126 ,  H04N19/154 ,  H04N19/176 ,  H04N19/17

CPC classification number: H04N19/124 ,  H04N19/126 ,  H04N19/136 ,  H04N19/14 ,  H04N19/154 ,  H04N19/17 ,  H04N19/176 ,  H04N19/182 ,  H04N19/192 ,  H04N19/50 ,  H04N19/60 ,  H04N19/625 ,  H04N19/86

Abstract: A system and method for generating a second reduced size digital image from a first digital image, the method including iteratively compressing the first digital image to an extent determined by a quality measure comprising at least a blockiness measure quantifying added artifactual edges along coding block bomldaries of the second image and/or use of a quantization matrix generated by computing a weighted average of the quantization matrix of the first digital image and a scaled second quantization matrix.

公开(公告)号：US20210235107A1

公开(公告)日：2021-07-29

申请号：US16775463

申请日：2020-01-29

Applicant: Mellanox Technologies, Ltd. ,  BEAMR IMAGING LTD.

Inventor： Dotan David Levi ,  Assaf Weissman ,  Ohad Markus ,  Uri Gadot ,  Aviad Raveh ,  Tamar Shoham

IPC: H04N19/52 ,  H04N19/176 ,  H04N19/177

Abstract: A video processor includes a memory and a processor. The processor is coupled to memory and is configured to store in the memory (i) multiple raw frames belonging to a Group of Pictures (GOP) to be processed, and (ii) one or more reference frames. The processor is further configured to select for multiple target blocks having a same block-location in respective raw frames associated with a common reference frame, a common search region in the common reference frame, and before selecting another search region, to apply at least two motion estimation operations using at least two of the target blocks and the common search region, to estimate respective at least two Motion Vectors (MVs).

公开(公告)号：US10674158B2

公开(公告)日：2020-06-02

申请号：US15623965

申请日：2017-06-15

Applicant: BEAMR IMAGING LTD.

Inventor： Sharon Carmel ,  Dror Gill ,  Tamar Shoham ,  Amir Leibman ,  Nikolay Terterov ,  Pavel Titkov ,  Alexander Zheludkov

IPC: H04N19/00 ,  H04N19/146 ,  H04N19/50 ,  H04N19/192 ,  H04N19/172 ,  H04N19/103

Abstract: There is provided a computerized method and system of optimized video encoding of an input video sequence corresponding to a plurality of input frames, the method comprising: obtaining an input frame; performing a first encoding of the input frame using a first encoding parameter determined in accordance with a target bit-rate, giving rise to a first encoded frame; performing a second encoding of the input frame using an iterative quality-driven encoding scheme initialized with an initial second encoding parameter, the initial second encoding parameter determined based on the first encoding parameter, the second encoding performed in an attempt to seek a second encoded frame having a lower bit-rate than the first encoded frame and meeting a quality criterion relative to the first encoded frame; and in case of the second encoded frame being found, providing the second encoded frame as an output frame corresponding to the input frame.

公开(公告)号：US10674154B2

公开(公告)日：2020-06-02

申请号：US16433358

申请日：2019-06-06

Applicant: BEAMR IMAGING LTD

Inventor： Sharon Carmel ,  Dror Gill ,  Tamar Shoham

IPC: H04N19/124 ,  H04N19/176 ,  H04N19/60 ,  H04N19/126 ,  H04N19/17 ,  H04N19/192 ,  H04N19/86 ,  H04N19/154 ,  H04N19/182 ,  H04N19/50 ,  H04N19/136 ,  H04N19/14 ,  H04N19/625

Abstract: A system and method for generating a second reduced size digital image from a first digital image, the method including iteratively compressing the first digital image to an extent determined by a quality measure comprising at least a blockiness measure quantifying added artifactual edges along coding block bom1daries of the second image and/or use of a quantization matrix generated by computing a weighted average of the quantization matrix of the first digital image and a scaled second quantization matrix.

公开(公告)号：US09503738B2

公开(公告)日：2016-11-22

申请号：US14527218

申请日：2014-10-29

Applicant: BEAMR IMAGING LTD

Inventor： Sharon Carmel ,  Dror Gill ,  Tamar Shoham

IPC: H04N19/154 ,  H04N19/176 ,  H04N19/60 ,  H04N19/126 ,  H04N19/17 ,  H04N19/192 ,  H04N19/86 ,  H04N19/124 ,  H04N19/182 ,  H04N19/50 ,  H04N19/136

CPC classification number: H04N19/124 ,  H04N19/126 ,  H04N19/136 ,  H04N19/14 ,  H04N19/154 ,  H04N19/17 ,  H04N19/176 ,  H04N19/182 ,  H04N19/192 ,  H04N19/50 ,  H04N19/60 ,  H04N19/625 ,  H04N19/86

Abstract: A system and method for generating a second reduced size digital image from a first digital image, the method including iteratively compressing the first digital image to an extent determined by a quality measure comprising at least a blockiness measure quantifying added artifactual edges along coding block boundaries of the second image and/or use of a quantization matrix generated by computing a weighted average of the quantization matrix of the first digital image and a scaled second quantization matrix.

Abstract translation: 一种用于从第一数字图像生成第二缩小尺寸数字图像的系统和方法，所述方法包括将所述第一数字图像迭代地压缩到由质量测量确定的程度，所述质量度量至少包括沿着编码块边界的编码块边界量化附加伪像边缘的块效应度量 第二图像和/或使用通过计算第一数字图像的量化矩阵和缩放的第二量化矩阵的加权平均而产生的量化矩阵。

公开(公告)号：US11178394B2

公开(公告)日：2021-11-16

申请号：US16880646

申请日：2020-05-21

Applicant: Beamr Imaging Ltd

Inventor： Dror Gill ,  Tamar Shoham ,  Dan Julius ,  Dafna Assaf

IPC: H04N17/00 ,  H04N17/02 ,  H04N21/658 ,  H04B17/309

Abstract: There are provided computerized systems and methods for video quality assessment, the system including a server including a database configured to store pointers to a plurality of video clip pairs and a processor operatively connected thereto, configured to store pointers to a plurality of video clip pairs to be used in one or more test sessions performed by one or more users. The processor is configured to create, for each test session performed by a respective user: a test set, a display order and display positions of the each video in each video clip pairs in the set, and is further configured to send the one or more test sets to the one or more users for assessing quality and to receive feedback regarding the assessed quality, wherein the feedback is usable for providing subjective quality evaluation of the plurality of video clip pairs.