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：US20180063536A1

公开(公告)日：2018-03-01

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: H04N19/189 ,  H04N19/176 ,  H04N19/177 ,  H04N19/82 ,  H04N19/154

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：US20170372467A1

公开(公告)日：2017-12-28

申请号：US15541905

申请日：2016-02-16

Applicant: BEAMR IMAGING LTD

Inventor： Sharon CARMEL ,  Dror GILL ,  Tamar SHOHAM ,  Udi Yehuda SHROT

IPC: G06T7/00 ,  G06T7/90 ,  G06T7/40

CPC classification number: G06T7/0002 ,  G06K9/036 ,  G06K9/4604 ,  G06T5/002 ,  G06T7/40 ,  G06T7/90 ,  G06T2207/10016 ,  G06T2207/10024 ,  G06T2207/20012 ,  G06T2207/20021 ,  G06T2207/30168

Abstract: There is provided a computerized method and system of controlling a quality measure in a compression quality evaluation system, the method comprising: calculating a value indicative of a characteristic of an input image; and configuring the quality measure upon a criterion being met by the value, the quality measure being indicative of perceptual quality of a compressed image compressed from the input image. The value can be a smoothness value indicative of an extent of smoothness of an input image, and the configuration of the quality measure can be performed upon a smoothness criterion being met by the smoothness value. Alternatively, the value can be a gradient value indicative of an extent of gradual spatial changes of an input image, and the configuration of the quality measure can be performed upon a gradient criterion being met by the gradient value.

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：US10986363B2

公开(公告)日：2021-04-20

申请号：US16333279

申请日：2017-09-05

Applicant: BEAMR IMAGING LTD.

Inventor： Mikhail Terterov ,  Alexey Martemyanov ,  Boris Filippov ,  Tamar Shoham

IPC: H04N19/52 ,  H04N19/513 ,  H04N19/86 ,  H04N19/137 ,  H04N19/117 ,  H04N19/14 ,  H04N5/21 ,  H04N19/172 ,  H04N19/174 ,  H04N19/523 ,  H04N5/232

Abstract: There are provided computerized systems and methods of pre-processing video information for optimized video encoding. In various aspects, the pre-processing can be performed in different ways. By way of example, this can be performed by aligning a plurality of consecutive frames in the sequence of video frames. By way of another example, this can be performed by conducting adaptive pre-filtering of the video information. By way of yet another example, this can be performed by filtering the video information in order to remove grain content thereof.

公开(公告)号：US20210021805A1

公开(公告)日：2021-01-21

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 ,  H04B17/309 ,  H04N21/658

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.

公开(公告)号：US20190289293A1

公开(公告)日：2019-09-19

申请号：US16433358

申请日：2019-06-06

Applicant: BEAMR IMAGING LTD

Inventor： Sharon CARMEL ,  Dror GILL ,  Tamar SHOHAM

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

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：US20190158830A1

公开(公告)日：2019-05-23

申请号：US16260304

申请日：2019-01-29

Applicant: BEAMR IMAGING LTD

Inventor： Sharon Carmel ,  Dror GiIl ,  Tamar Shoham ,  Amir Leibman

IPC: H04N19/122 ,  H04N19/192 ,  H04N19/154 ,  H04N19/172 ,  H04N19/196 ,  H04N19/85 ,  H04N19/124 ,  H04N19/593 ,  H04N19/86

CPC classification number: H04N19/122 ,  H04N19/124 ,  H04N19/154 ,  H04N19/172 ,  H04N19/182 ,  H04N19/192 ,  H04N19/197 ,  H04N19/593 ,  H04N19/85 ,  H04N19/86

Abstract: According to examples of the presently disclosed subject matter, a method of controlling a video content system can include: obtaining a current input frame and a preceding input frame from an input video sequence and obtaining a current degraded frame and a preceding degraded frame from a degraded video sequence corresponding to the input video sequence; computing a first differences value from the current input and the preceding input frames and a second differences value from the current degraded frame and the preceding degraded frame, comparing the first and second differences values, giving rise to an inter-frame, quality score; computing an intra-frame quality score using an intra-frame quality measure that is applied in the pixel-domain of the current degraded frame and the current input frame and providing a configuration instruction to the video content system based on a quality criterion related to the inter-frame and the intra-frame quality scores.

公开(公告)号：US10136131B2

公开(公告)日：2018-11-20

申请号：US15254565

申请日：2016-09-01

Applicant: Beamr Imaging Ltd.

Inventor： Alexander Zheludkov

IPC: H04N7/12 ,  H04N19/119 ,  H04N19/124 ,  H04N19/593

Abstract: By one approach a control circuit receives video information to be encoded, uses a particular rounding control value when processing the video information, and detects when color banding occurs when processing the video information using the particular rounding control value and responsively reprocesses the video information using a different rounding control value. By another approach, the control circuit has a plurality of different intra prediction types, including a planar intra prediction type, available to use when encoding the video information and wherein the control circuit determines when the planar intra prediction type can be employed without testing use of all of the plurality of different intra prediction types. By yet another approach, the control circuit selects block coding parameters, at least in part, by comparing corresponding mode costs, detects a smooth area in the video information, and then modifies mode costs as a function of having detected the smooth area.