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公开(公告)号：EP2788973A1
公开(公告)日：2014-10-15
申请号：EP12808593.3
申请日：2012-12-06
发明人： BALLESTAD, Anders , ATKINS, Robin , JOHNSON, Lewis
IPC分类号： G09G5/00
CPC分类号： G06T1/20 , G06K9/6202 , G06T11/001 , G09G5/00 , G09G5/02
摘要： An emulator yields modified image data that predicts the appearance of image content on a target display. The emulator generates the modified image data based in part on the image content. The emulator may perform a transformation in which one or more parameters representative of features such as black level and/or white level of the target display are functions of image statistics for the image content.
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2.发明公开
公开(公告)号：EP4053786A1
公开(公告)日：2022-09-07
申请号：EP22162378.8
申请日：2011-11-17
摘要： Image data is encoded for distribution in a lower bit-depth format. The image data has a range that is less than a maximum range and is mapped to the lower bit depth format using a mapping such that a ratio of a range of the lower bit depth representation to a maximum range of the lower bit depth representation is greater than a ratio of the range of the image data to a maximum range of the image data. Metadata characterizing the mapping is associated with lower bit depth representation. The metadata may be used downstream in combination with local dimming capabilities of a display to reverse the mapping so that tonal detail is better reproduced.
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公开(公告)号：EP2643809B1
公开(公告)日：2020-06-24
申请号：EP11843959.5
申请日：2011-11-17
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4.发明公开
公开(公告)号：EP3716632A1
公开(公告)日：2020-09-30
申请号：EP20174275.6
申请日：2011-11-17
摘要： Image data is encoded for distribution in a lower bit-depth format. The image data has a range that is less than a maximum range and is mapped to the lower bit depth format using a mapping such that a ratio of a range of the lower bit depth representation to a maximum range of the lower bit depth representation is greater than a ratio of the range of the image data to a maximum range of the image data. Metadata characterizing the mapping is associated with lower bit depth representation. The metadata may be used downstream in combination with global dimming capabilities of a display to reverse the mapping so that tonal detail is better reproduced.
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公开(公告)号：EP2569949B1
公开(公告)日：2018-02-21
申请号：EP11781082.0
申请日：2011-05-09
CPC分类号： H04N1/6058 , H04N9/67
摘要： Apparatus and methods are provided to map out-of-gamut points to in-gamut points. Embodiments transform image data for presentation on a display or medium having a gamut different from that of the image data. Different mapping algorithms may be applied based in part on luminance of the points being mapped. Embodiments apply a reduced dataset representing a gamut boundary. Irregular gamuts may be accommodated
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6.发明授权SYSTEMS AND METHODS FOR APPLYING ADAPTIVE GAMMA IN IMAGE PROCESSING FOR HIGH BRIGHTNESS AND HIGH DYNAMIC RANGE DISPLAYS 有权系统及方法成像显示出与亮度和高度的高动态范围自适应GAMMA中的应用
公开(公告)号：EP2329487B1
公开(公告)日：2016-05-25
申请号：EP09792643.0
申请日：2009-09-17
发明人： WALLENER, Damir , JOHNSON, Lewis
CPC分类号： G09G3/3426 , G09G3/3611 , G09G2320/0276 , G09G2320/0646 , G09G2360/16
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公开(公告)号：EP2617184A2
公开(公告)日：2013-07-24
申请号：EP11825694.0
申请日：2011-09-07
发明人： MESSMER, Neil W. , JOHNSON, Lewis
CPC分类号： G09G5/02 , G09G2340/06 , H04N1/6058 , H04N9/67 , H04N19/186 , H04N19/46
摘要： Methods for transmitting additional information together with image data involve replacing pixel values to take in-gamut points to out-of-gamut points. The additional information may constitute metadata describing the image data and/or useful for controlling display and/or processing of the image data; watermark information; or other information. In some embodiments the image data is restored to its original form after extraction of the additional information.
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公开(公告)号：EP2617184B1
公开(公告)日：2019-01-16
申请号：EP11825694.0
申请日：2011-09-07
发明人： MESSMER, Neil W. , JOHNSON, Lewis
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公开(公告)号：EP2766894A1
公开(公告)日：2014-08-20
申请号：EP12778914.7
申请日：2012-10-12
发明人： WAN, Chun Chi Thomas , GIARETTA, Giorgio , JOHNSON, Lewis , LAU, Ka Wing Terence , ORLICK, Christopher , MESSMER, Neil
IPC分类号： G09G3/34
CPC分类号： G09G3/3413 , G09G3/32 , G09G3/3426 , G09G2320/0646 , G09G2320/0666 , G09G2340/06
摘要： Methods and apparatus are provided for backlighting a dual modulation display device. Each type of light source comprises a multi-primary light source having two or more primary color light emitters having different primary color characteristics from corresponding primary color emitters of other types of light source. Methods may comprise receiving illumination target values for a plurality of locations on the front modulator corresponding to the plurality of light sources, each of the locations on the front modulator configured to be illuminated by two or more of the plurality of light sources, determining primary color drive values source based on the primary color characteristics for that primary color and the illumination target value for the location corresponding to that light source, and driving the primary color light emitters or each type of light source based on the primary color drive values.
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10.发明授权BACKLIGHT SIMULATION AT REDUCED RESOLUTIONS TO DETERMINE SPATIAL MODULATION OF LIGHT FOR HIGH DYNAMIC RANGE IMAGES 有权背光模拟AT降低的分辨率的用于确定光的空间调制对于高范围拍摄
公开(公告)号：EP2335219B1
公开(公告)日：2014-01-15
申请号：EP09737263.5
申请日：2009-10-02
发明人： JOHNSON, Lewis
CPC分类号： G09G3/002 , G06T5/009 , G06T2207/10016 , G06T2207/20012 , G09G3/3426 , G09G3/36 , G09G2320/0646 , G09G2340/0407 , H04N5/142
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