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21.发明授权Generation of high dynamic range images from low dynamic range images in multiview video coding 有权在多视点视频编码中从低动态范围图像生成高动态范围图像公开(公告)号：US09098906B2
公开(公告)日：2015-08-04
申请号：US13808232
申请日：2011-07-05
IPC分类号： G06K9/00 , G06T9/00 , H04N19/597 , H04N19/105 , H04N19/30 , H04N19/593 , H04N19/103 , H04N19/14 , H04N19/154 , H04N19/184 , H04N19/187
CPC分类号： G06T9/004 , H04N19/103 , H04N19/105 , H04N19/14 , H04N19/154 , H04N19/184 , H04N19/187 , H04N19/30 , H04N19/593 , H04N19/597
摘要： Several approaches are disclosed for combining HDR and 3D image structure analysis and coding, in particular an encoding apparatus for encoding a first view high dynamic range image and a second view high dynamic range image comprising: first and second HDR image receivers (203, 1201) arranged to receive the first view high dynamic range image and a second view high dynamic range image; a predictor (209) arranged to predict the first view high dynamic range image from a low dynamic range representation of the first view high dynamic range image; and a view predictor (1203) to predict the second view high dynamic range image from at least one of the first view high dynamic range image, a low dynamic range representation of the second view high dynamic range image, or a low dynamic range representation of the first view high dynamic range image.
摘要翻译： 公开了用于组合HDR和3D图像结构分析和编码的几种方法，特别是用于编码第一视图高动态范围图像和第二视图高动态范围图像的编码装置，包括：第一和第二HDR图像接收器（203,1201） 布置成接收第一视图高动态范围图像和第二视图高动态范围图像; 预测器（209），布置成从第一视图高动态范围图像的低动态范围表示预测第一视图高动态范围图像; 和从第一视图高动态范围图像，第二视图高动态范围图像的低动态范围表示或低动态范围图像的低动态范围表示中的至少一个来预测第二视图高动态范围图像的视图预测器（1203） 第一视图高动态范围图像。
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公开(公告)号：US08755561B2
公开(公告)日：2014-06-17
申请号：US13520588
申请日：2011-01-11
申请人： Ruud Vlutters , Frederik Jan De Bruijn , Lorenzo Feri , Tim Corneel Wilhelmus Schenk , Remco Theodorus Johannes Muijs
发明人： Ruud Vlutters , Frederik Jan De Bruijn , Lorenzo Feri , Tim Corneel Wilhelmus Schenk , Remco Theodorus Johannes Muijs
IPC分类号： G06K9/00
CPC分类号： H05B37/02 , G06K9/2036
摘要： The invention relates to a detection system for determining whether a light contribution of a light source is present at a selected position within a 2D scene. The light contribution includes an embedded code comprising a repeating sequence of N symbols. The detection system includes a camera and a processing unit. The camera is configured to acquire a series of images of the scene via specific open/closure patterns of the shutter. Each image includes a plurality of pixels, each pixel representing an intensity of the light output of the light source at a different physical position within the scene. The processing unit is configured to process the acquired series of images to determine whether the light contribution of the first light source is present at the selected physical position within the scene by e.g. correlating a sequence of pixels of the acquired series corresponding to the selected physical position with the first sequence of N symbols.
摘要翻译： 本发明涉及一种用于确定在2D场景内的选定位置是否存在光源的光贡献的检测系统。 光贡献包括包括N个符号的重复序列的嵌入代码。 检测系统包括照相机和处理单元。 相机被配置为通过快门的特定打开/关闭图案来获取场景的一系列图像。 每个图像包括多个像素，每个像素表示在场景内的不同物理位置处的光源的光输出的强度。 处理单元被配置为处理所获取的一系列图像以确定第一光源的光贡献是否存在于场景内的所选物理位置。 将所选择的所选择的物理位置的序列的像素序列与N个符号的第一序列相关联。
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公开(公告)号：US20140002479A1
公开(公告)日：2014-01-02
申请号：US14003832
申请日：2012-03-19
申请人： Remco Theodorus Johannes Muijs , Mark Jozef Wiiiem Mertens , Wilhelmus Hendrikus Alfonsus Bruls , Chris Damkat , Martin Hammer , Cornelis Wilhelmus Kwisthout
发明人： Remco Theodorus Johannes Muijs , Mark Jozef Wiiiem Mertens , Wilhelmus Hendrikus Alfonsus Bruls , Chris Damkat , Martin Hammer , Cornelis Wilhelmus Kwisthout
IPC分类号： G09G5/10
CPC分类号： G09G5/10 , G06T5/007 , G06T5/50 , G06T2207/20208 , G09G2320/0613 , G09G2320/0626
摘要： The method of analyzing a difference of at least two gradings of an image on the basis of: obtaining a first graded picture (LDR) with a first luminance dynamic range; obtaining data encoding a grading of a second graded picture (HDR) with a second luminance dynamic range, different from the first luminance dynamic range; determining a grading difference data structure (DATGRAD) on the basis of at least the data encoding the grading of the second graded picture (HDR), allows more intelligently adaptive encoding of the imaged scenes, and consequently also better use of those pictures, such as higher quality rendering under various rendering scenarios.
摘要翻译： 基于获得具有第一亮度动态范围的第一分级图像（LDR）来分析图像的至少两个分级的差异的方法; 获得与第一亮度动态范围不同的具有第二亮度动态范围的编码第二渐变图像（HDR）的分级的数据; 至少基于对第二分级图像（HDR）的分级进行编码的数据来确定分级差分数据结构（DATGRAD），允许对图像场景进行更智能的自适应编码，从而更好地利用这些图像，例如 在各种渲染场景下更高质量的渲染。
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公开(公告)号：US20130222377A1
公开(公告)日：2013-08-29
申请号：US13881091
申请日：2011-10-25
IPC分类号： G06T15/00
CPC分类号： G06T15/00 , H04N13/128 , H04N13/161 , H04N19/597
摘要： An approach is provided for generating a depth indication map from an image. The generation is performed using a mapping relating input data in the form of input sets of image spatial positions and a combination of color coordinates of pixel values associated with the image spatial positions to output data in the form of depth indication values. The mapping is generated from a reference image and a corresponding reference depth indication map. Thus, a mapping from the image to a depth indication map is generated on the basis of corresponding reference images. The approach may be used for prediction of depth indication maps from images in an encoder and decoder. In particular, it may be used to generate predictions for a depth indication map allowing a residual image to be generated and used to provide improved encoding of depth indication maps.
摘要翻译： 提供了一种用于从图像生成深度指示图的方法。 使用以输入图像空间位置集合的形式的输入数据和与图像空间位置相关联的像素值的颜色坐标的组合的映射来执行生成，以深度指示值的形式输出数据。 从参考图像和相应的参考深度指示图生成映射。 因此，基于对应的参考图像生成从图像到深度指示图的映射。 该方法可用于从编码器和解码器中的图像预测深度指示图。 特别地，其可以用于生成深度指示图的预测，允许生成残差图像并用于提供深度指示图的改进编码。
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公开(公告)号：US08233098B2
公开(公告)日：2012-07-31
申请号：US12515041
申请日：2007-11-16
IPC分类号： H04N9/30
CPC分类号： H04N1/6058
摘要： A system (600) for performing gamut compression or gamut extension by transforming an input color (608) of an input image defined within a first gamut (102) into a reproduction color (610) of an output image for rendering by a reproduction device capable of rendering colors within a second gamut (104) different from the first gamut. The input color has an input chromaticity (C1) and an input lightness (Z-*) together forming an input point (202) in a chromaticity-lightness plane. The reproduction color has a reproduction point (210) in the chromaticity-lightness plane, wherein an absolute difference between the input lightness and the output lightness is a decreasing function of at least the chromaticity. An absolute difference between the input chromaticity and the output chromaticity is an increasing function of at least the chromaticity.
摘要翻译： 一种用于通过将在第一色域（102）中定义的输入图像的输入颜色（608）变换为输出图像的再现颜色（610）来进行色域压缩或色域扩展的系统（600），用于由能够再现的再现设备呈现 在与第一色域不同的第二色域（104）内渲染颜色。 输入颜色具有输入色度（C1）和输入亮度（Z- *），一起在色度平面中形成输入点（202）。 再现颜色在色度平面中具有再现点（210），其中输入亮度和输出亮度之间的绝对差是至少色度的递减函数。 输入色度和输出色度之间的绝对差是至少色度的增加函数。
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公开(公告)号：US20100309298A1
公开(公告)日：2010-12-09
申请号：US12864513
申请日：2009-01-22
CPC分类号： G09G3/3406 , G09G3/2022 , G09G3/2074 , G09G3/36 , G09G2320/028 , G09G2320/0646 , G09G2360/16 , H04N13/305 , H04N13/317 , H04N13/354 , H04N13/398
摘要： A display control system (11) comprises an input (12) for receiving an image to be displayed by means of a backlight (2) and a transmissive panel (3). A backlight controller (5) provides different colors or luminances for causing the backlight (2) to sequentially apply the different colors or luminances to the transmissive panel (3) in time-sequential sub-fields of the image. A transmissive panel controller (6) provides transmittivities for causing the transmissive panel (3) to sequentially apply the transmittivities to the transmissive panel in the time-sequential sub-fields of the image for displaying the image. The transmissive panel controller (6) selects a transmittivity based on a predetermined amount of off-axis gamma distortion of the transmissive panel.
摘要翻译： 显示控制系统（11）包括用于通过背光（2）和透射面板（3）接收要显示的图像的输入端（12）。 背光控制器（5）提供不同的颜色或亮度，用于使得背光（2）在图像的时序子场中顺序地将不同的颜色或亮度施加到透射面板（3）。 透射面板控制器（6）提供透射率，用于使透射面板（3）在用于显示图像的图像的时序子场中顺序地将透射率施加到透射面板。 透射面板控制器（6）基于透射面板的预定量的离轴伽马失真来选择透射率。
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公开(公告)号：US20100110312A1
公开(公告)日：2010-05-06
申请号：US12515041
申请日：2007-11-16
CPC分类号： H04N1/6058
摘要： A system (600) for performing gamut compression or gamut extension by transforming an input color (608) of an input image defined within a first gamut (102) into a reproduction color (610) of an output image for rendering by a reproduction device capable of rendering colors within a second gamut (104) different from the first gamut. The input color has an input chromaticity (C1) and an input lightness (Z-*) together forming an input point (202) in a chromaticity-lightness plane. The reproduction color has a reproduction point (210) in the chromaticity-lightness plane, wherein an absolute difference between the input lightness and the output lightness is a decreasing function of at least the chromaticity. An absolute difference between the input chromaticity and the output chromaticity is an increasing function of at least the chromaticity.
摘要翻译： 一种用于通过将在第一色域（102）中定义的输入图像的输入颜色（608）变换为输出图像的再现颜色（610）来进行色域压缩或色域扩展的系统（600），用于由能够再现的再现设备呈现 在与第一色域不同的第二色域（104）内渲染颜色。 输入颜色具有输入色度（C1）和输入亮度（Z- *），一起在色度平面中形成输入点（202）。 再现颜色在色度平面中具有再现点（210），其中输入亮度和输出亮度之间的绝对差是至少色度的递减函数。 输入色度和输出色度之间的绝对差是至少色度的增加函数。
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公开(公告)号：US20090278953A1
公开(公告)日：2009-11-12
申请号：US12297242
申请日：2007-04-17
申请人： Leo Jan Velthoven , Michiel Adriaanszoon Klompenhouwer , Remco Theodorus Johannes Muijs , Gerben Johan Hekstra
发明人： Leo Jan Velthoven , Michiel Adriaanszoon Klompenhouwer , Remco Theodorus Johannes Muijs , Gerben Johan Hekstra
CPC分类号： G06T5/001 , H04N19/117 , H04N19/136 , H04N19/14 , H04N19/17 , H04N19/527 , H04N19/80
摘要： The apparatus (100) for enhancing at least a region of an input picture (P_in) having input pixel values enabling inter alia the reduction of quantization banding artefacts, comprises: an estimation unit (102) arranged to estimate a quantization precision (QP) of at least the region of the input picture; a pattern analysis unit (104), arranged to determine positions in the input picture of changes in input pixel value of less than or equal to the quantization precision (QP), and to output analysis information (INF_AN) representing the positions; and an adaptive filter (106), arranged to calculate an output picture (P out) corresponding to at least the region of the input picture, comprising output pixels being determined on the basis of adaptive combinations of input pixels, and arranged to determine the adaptive combinations in dependence on the analysis information.
摘要翻译： 用于增强输入图像（P_in）的至少一个区域的设备（100）包括：估计单元（102），用于估计量化精度（QP），所述估计单元 至少输入图像的区域; 模式分析单元，被配置为确定输入图像中的输入像素值的变化小于或等于量化精度（QP）的位置，以及输出表示位置的分析信息（INF_AN）; 以及自适应滤波器（106），被配置为计算对应于所述输入图像的至少所述区域的输出图像（P out），包括基于输入像素的自适应组合确定的输出像素，并且被布置为确定所述自适应 组合依赖于分析信息。
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