公开(公告)号：US12238273B2

公开(公告)日：2025-02-25

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 ,  H04N19/176 ,  H04N19/51

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：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：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：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：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：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.