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Patent Agency Ranking
公开(公告)号：US10134121B2
公开(公告)日：2018-11-20
申请号：US15541905
申请日：2016-02-16
Applicant: BEAMR IMAGING LTD
Inventor： Sharon Carmel , Dror Gill , Tamar Shoham , Udi Yehuda Shrot
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.
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公开(公告)号：US09866837B2
公开(公告)日：2018-01-09
申请号：US15265353
申请日：2016-09-14
Applicant: BEAMR IMAGING LTD
Inventor： Sharon Carmel , Dror Gill , Tamar Shoham
IPC: H04N19/124 , H04N19/86 , H04N19/14 , H04N19/625 , H04N19/154 , H04N19/126 , 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 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.
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公开(公告)号：US20170345170A1
公开(公告)日：2017-11-30
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
CPC classification number: G06T7/44 , G06T5/002 , G06T7/00 , G06T7/42 , G06T9/007 , G06T2207/10016 , G06T2207/10024 , G06T2207/20024 , G06T2207/20052 , G06T2207/20076 , G06T2207/20081 , 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 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.
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公开(公告)号：US20170244965A1
公开(公告)日：2017-08-24
申请号：US15453057
申请日：2017-03-08
Applicant: BEAMR IMAGING LTD
Inventor： Sharon Carmel , Dror GiIl , Tamar Shoham , Amir Leibman
IPC: H04N19/122 , H04N19/154 , H04N19/196 , H04N19/593
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.
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公开(公告)号：US09635387B2
公开(公告)日：2017-04-25
申请号：US14193555
申请日：2014-02-28
Applicant: BEAMR IMAGING LTD
Inventor： Sharon Carmel , Dror Gill , Tamar Shoham , Amir Leibman
IPC: H04N7/12 , H04N19/85 , H04N19/196 , H04N19/172 , H04N19/154 , H04N19/192 , H04N19/124 , 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.
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