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：US20170374361A1

公开(公告)日：2017-12-28

申请号：US15528468

申请日：2016-01-27

Applicant: BEAMR IMAGING LTD.

Inventor： Sharon CARMEL ,  Dror GILL ,  Tamar SHOHAM ,  Shevach RIABTSEV

IPC: H04N19/103 ,  H04N19/15 ,  H04N19/124

CPC classification number: H04N19/103 ,  H04N19/124 ,  H04N19/15 ,  H04N19/154 ,  H04N19/156 ,  H04N19/172

Abstract: There is provided a computerized method and system of controlling a video content system based on an input video bitstream, the input video bitstream including encoded data encoded from one or more input frames of a video sequence, the method comprising: extracting, from the input video bitstream, encoding information associated with each input frame of said one or more input frames, the encoding information being used in an encoding process of the input frame to encode pixels included in the input frame into corresponding section of the input video bitstream; calculating one or more intricateness values each for a respective input frame based on the encoding information associated therewith, each intricateness value being indicative of encoding difficulty of the respective input frame in the encoding process; and providing a configuration instruction for controlling a video content system by using the one or more intricateness values.

公开(公告)号：US20170150149A1

公开(公告)日：2017-05-25

申请号：US15265353

申请日：2016-09-14

Applicant: BEAMR IMAGING LTD

Inventor： Sharon CARMEL ,  Dror GILL ,  Tamar SHOHAM

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

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.

公开(公告)号：US20160205407A1

公开(公告)日：2016-07-14

申请号：US14912291

申请日：2014-08-11

Applicant: BEAMR IMAGING LTD

Inventor： Sharon CARMEL ,  Dror GILL ,  Tamar SHOHAM

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

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

Abstract: A method, comprising 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 comprising 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.

Abstract translation: 一种方法，包括获得与原始视频比特流相对应的第一多个解码独立片段，根据质量标准对所述第一多个解码独立片段中的每一个进行重新编码，从而产生第二多个解码 独立细分; 以及生成包括第三多个解码独立片段的输出视频比特流，其中所述第三多个解码独立片段中的每个片段从所述第一多个解码独立片段中或从所述第二多个解码独立片段中选择 使用至少与段的比特率相关的选择标准。

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.

公开(公告)号：US20210168354A1

公开(公告)日：2021-06-03

申请号：US17095765

申请日：2020-11-12

Applicant: MELLANOX TECHNOLOGIES, LTD. ,  BEAMR IMAGING LTD.

Inventor： Dotan David Levi ,  Assaf Weissman ,  Ohad Markus ,  Uri Gadot ,  Aviad Raveh ,  Dror Gill ,  Nikolay Terterov ,  Pavel Titkov ,  Alexey Mitkovets ,  Alexey Martemyanov ,  Alexander Zheludkov

IPC: H04N19/105 ,  H04N19/119 ,  H04N19/159 ,  H04N19/51 ,  H04N19/176

Abstract: A video coding system including an acceleration device including input circuitry configured, for each of a first plurality of video frames to be encoded, to receive an input including at least one raw video frame and at least one reference frame, and to divide each of the first plurality of video frames to be encoded into a second plurality of blocks, and similarity computation circuitry configured, for each one of the first plurality of video frame to be encoded: for each the block of the second plurality of blocks, to produce an intra-prediction hint and an intra-prediction direction. Related apparatus and methods are also provided.

公开(公告)号：US10567764B2

公开(公告)日：2020-02-18

申请号：US16260304

申请日：2019-01-29

Applicant: BEAMR IMAGING LTD

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

IPC: H04N19/122 ,  H04N19/124 ,  H04N19/86 ,  H04N19/196 ,  H04N19/172 ,  H04N19/154 ,  H04N19/192 ,  H04N19/85 ,  H04N19/593 ,  H04N19/182

Abstract: 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：US10013772B2

公开(公告)日：2018-07-03

申请号：US15528472

申请日：2016-10-10

Applicant: BEAMR IMAGING LTD.

Inventor： Sharon Carmel ,  Dror Gill ,  Tamar Shoham ,  Udi Yehuda Shrot ,  Boris Filippov

IPC: G06T7/00 ,  G06T7/44 ,  G06T5/00 ,  G06T9/00

CPC classification number: G06T7/44 ,  G06T5/002 ,  G06T7/00 ,  G06T7/42 ,  G06T9/002 ,  G06T9/007 ,  G06T2207/10016 ,  G06T2207/10024 ,  G06T2207/20024 ,  G06T2207/20052 ,  G06T2207/20076 ,  G06T2207/20081 ,  G06T2207/30168 ,  H04N19/124 ,  H04N19/154 ,  H04N19/172

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 grain value indicative of an extent of grain present in an input image, the grain value being calculated based on one or more features characterizing a base image related to the 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 calculated grain value may be dependent also on further characteristics of the input image, or in the case of a sequence of images, dependent also on the relation between the image and the preceding image.

公开(公告)号：US20170078663A1

公开(公告)日：2017-03-16

申请号：US15254565

申请日：2016-09-01

Applicant: Beamr Imaging Ltd.

Inventor： Alexander Zheludkov

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

CPC classification number: H04N19/119 ,  H04N19/11 ,  H04N19/124 ,  H04N19/126 ,  H04N19/14 ,  H04N19/147 ,  H04N19/17 ,  H04N19/176 ,  H04N19/593 ,  H04N19/86

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.

Abstract translation: 通过一种方式，控制电路接收要编码的视频信息，在处理视频信息时使用特定的舍入控制值，并且在使用特定的舍入控制值处理视频信息时检测何时出现颜色条带，并且使用 不同的舍入控制值。 通过另一种方法，控制电路具有多个不同的帧内预测类型，包括平面帧内预测类型，可用于在编码视频信息时使用，并且其中控制电路确定何时可以采用平面帧内预测类型而不测试使用 所有多个不同的帧内预测类型。 通过另一种方法，控制电路至少部分地通过比较相应的模式成本，检测视频信息中的平滑区域，然后根据检测到平滑区域来修改模式成本来选择块编码参数。