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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：US08447096B2
公开(公告)日：2013-05-21
申请号：US12681637
申请日：2008-10-02
CPC分类号： H04N19/597 , H04N13/128 , H04N13/194
摘要： A device and apparatus for processing a depth-map including obtaining a depth-map based on a lossy compressed depth-map, the depth-map including depth information of a scene from a viewpoint, the scene includes an object; obtaining occlusion information for the scene from the viewpoint, the occlusion information including information occluded by the object in the depth-map; and processing at least part of the depth information using at least part of the occlusion information in order to reduce compression artifacts in the depth-map.
摘要翻译： 一种用于处理深度图的设备和装置，包括：基于有损压缩深度图获取深度图，所述深度图包括来自视点的场景的深度信息，所述场景包括对象; 从所述视点获取所述场景的遮挡信息，所述遮挡信息包括由所述深度图中的对象遮挡的信息; 以及使用所述遮挡信息的至少一部分处理所述深度信息的至少一部分，以便减少所述深度图中的压缩伪像。
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公开(公告)号：US20080253447A1
公开(公告)日：2008-10-16
申请号：US11570505
申请日：2005-06-17
CPC分类号： H04N19/124 , H04N19/132 , H04N19/146 , H04N19/159 , H04N19/177 , H04N19/192 , H04N19/40 , H04N21/234354
摘要： The invention relates to an apparatus comprising: processing means (18) for monitoring an input signal (20) so as to identify portions (22) of said input signal (20) having a bit rate greater than a predetermined threshold value (TH), a transcoding module for transcoding said portions (22) so as to reduce their bit rate under said threshold value (TH).
摘要翻译： 本发明涉及一种装置，包括：用于监测输入信号（20）的处理装置（18），以便识别具有大于预定阈值（TH）的比特率的所述输入信号（20）的部分（22） 用于对所述部分（22）进行代码转换以便在所述阈值（TH）之下降低其比特率的代码转换模块。
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45.发明授权Spatial scalable compression scheme using spatial sharpness enhancement techniques 有权使用空间锐度增强技术的空间可缩放压缩方案公开(公告)号：US07421127B2
公开(公告)日：2008-09-02
申请号：US10493274
申请日：2002-10-16
IPC分类号： G06K9/36
CPC分类号： H04N19/577 , H04N19/115 , H04N19/12 , H04N19/124 , H04N19/132 , H04N19/147 , H04N19/172 , H04N19/182 , H04N19/187 , H04N19/192 , H04N19/33 , H04N19/517 , H04N19/587 , H04N19/61
摘要： A video encoder/decoder with spatial scalable compression schemes using spatial sharpness enhancement techniques is disclosed. The video compression scheme introduces a number of various video enhancement techniques on the base layer. A picture analyzer is used to determine the best or the best mix of various video enhancement 5 techniques. The picture analyzer compares the selected mix of video enhancement techniques with the original full resolution input signal to determine for which of the pixels or groups of pixels a residual enhancement layer is required. Parameters defining the selected mix of video enhancement techniques are transmitted to the decoder layer so the same mix of video enhancement techniques can be used in the decoder layer.
摘要翻译： 公开了一种使用空间锐度增强技术的具有空间可缩放压缩方案的视频编码器/解码器。 视频压缩方案在基本层上引入了许多各种视频增强技术。 图像分析仪用于确定各种视频增强技术的最佳或最佳组合。 图像分析仪将所选择的视频增强技术的混合与原始全分辨率输入信号进行比较，以确定需要残余增强层的像素或像素组。 定义所选择的视频增强技术组合的参数被传送到解码器层，因此在解码器层中可以使用相同的视频增强技术混合。
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公开(公告)号：US07359558B2
公开(公告)日：2008-04-15
申请号：US10493266
申请日：2002-10-21
IPC分类号： G06K9/36
CPC分类号： H04N19/198 , H04N19/12 , H04N19/124 , H04N19/132 , H04N19/137 , H04N19/152 , H04N19/172 , H04N19/187 , H04N19/192 , H04N19/196 , H04N19/33 , H04N19/517 , H04N19/577 , H04N19/59 , H04N19/61
摘要： A method and apparatus for providing spatial scalable compression using adaptive content filtering of a video stream is disclosed. The video stream is downsampled to reduce the resolution of the video stream. The downsampled video stream is encoded to produce a base stream. The base stream is decoded and upconverted to produce a reconstructed video stream. The reconstructed video stream is subtracted from the video stream to produce a residual stream. The resulting residual stream is encoded in an enhancement encoder and outputs an enhancement stream. The residual signal in selected frames is muted in the enhancement encoder while the motion information in the frame is maintained.
摘要翻译： 公开了一种使用视频流的自适应内容滤波来提供空间可缩放压缩的方法和装置。 视频流被下采样以降低视频流的分辨率。 下采样的视频流被编码以产生基本流。 基本流被解码和上变频以产生重建的视频流。 从视频流中减去重建的视频流以产生残余流。 所得到的残留流被编码在增强编码器中并输出增强流。 所选帧中的残留信号在增强编码器中被静音，同时保持帧中的运动信息。
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公开(公告)号：US06963609B2
公开(公告)日：2005-11-08
申请号：US09936137
申请日：2001-01-05
CPC分类号： H04N19/40 , H04N19/117 , H04N19/126 , H04N19/137 , H04N19/159 , H04N19/172 , H04N19/176 , H04N19/18 , H04N19/186 , H04N19/46 , H04N19/56 , H04N19/60 , H04N19/61 , H04N19/80 , H04N19/85
摘要： A method and a device are provided, in which a signal is encoded to obtain a bit-stream. Blocks of quantized transform coefficients are provided. Transform coefficients corresponding to higher frequencies are attenuated more than coefficients corresponding to lower frequencies. For attenuating higher-frequency coefficients, the invention provides a curve (QC) with higher quantization step-size (QADD) for transform coefficients (Ci) corresponding to higher frequencies. Because this additional quantization step size (QADD) is put in the resulting bit-stream, the reconstruction is performed with an original quantization step-size, without taking the additional quantizing into account. Therefore, a reconstructed coefficient will have a lower value than an original coefficient (Ci). Bit rates can easily be regulated by shifting the curve (QC) to lower or higher frequencies and/or multiplying the curve (QC).
摘要翻译： 提供了一种方法和装置，其中对信号进行编码以获得比特流。 提供量化变换系数块。 对应于较高频率的变换系数比对应于较低频率的系数衰减更多。 为了衰减较高频率系数，本发明提供了一种对应于较高频率的变换系数（C SUB）的较高量化步长（Q SUB）的曲线（QC） 。 因为这个附加的量化步长（QADDADD）被放在得到的比特流中，所以以原始的量化步长执行重构，而不考虑额外的量化。 因此，重建的系数将具有比原始系数（C i）小的值。 通过将曲线（QC）移动到较低或更高的频率和/或乘以曲线（QC），可以容易地调节比特率。
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公开(公告)号：US10097843B2
公开(公告)日：2018-10-09
申请号：US13508739
申请日：2010-11-08
申请人： Wilhelmus Hendrikus Alfonsus Bruls , Christiaan Varekamp , Reinier Bernardus Maria Klein Gunnewiek
发明人： Wilhelmus Hendrikus Alfonsus Bruls , Christiaan Varekamp , Reinier Bernardus Maria Klein Gunnewiek
IPC分类号： H04N7/18 , H04N19/21 , H04N19/597 , H04N19/46 , H04N13/161 , G06T9/20
摘要： A method of encoding a video data signal (15) is provided, together with a method for decoding. The encoding comprises providing color information (51) for pixels in an image, providing a depth map with depth information (52) for the pixels, providing transition information (56, 57, 60, 70, 71) being representative of a width (63, 73) of a transition region (61, 72) in the image, the transition region (61, 72) comprising a depth transition (62) and blended pixels in which colors of a foreground object and a background object are blended, and generating (24) the video data signal (15) comprising encoded data representing the color information (51), the depth map (52) and the transition information (56, 57, 60, 70, 71). The decoding comprises using the transition information (56, 57, 60, 70, 71) for determining the width (63, 73) of the transition regions (61, 72) and for determining alpha values (53) for pixels inside the transition regions (61, 72). The determined alpha values (53) are used for determining the color of a blended pixel at the transition of a foreground object and a background object.
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公开(公告)号：US09560344B2
公开(公告)日：2017-01-31
申请号：US14009555
申请日：2012-04-13
IPC分类号： H04N13/04
CPC分类号： H04N13/349 , H04N13/327 , H04N13/398
摘要： A device 120 for processing three-dimensional [3D] image data 122 for display on a 3D display 160, the 3D display being arranged for adjacently emitting, in a viewing cone 180, a series of views 100 of the 3D image data, the series of views enabling autostereoscopic viewing of the 3D image data at multiple viewing positions 182, 184 in the viewing cone by a viewer perceiving two different ones of the series of views, and the device comprising an indicator generator 140 arranged for establishing a graphical shape in the 3D image data for, when being displayed on the 3D display, providing to the viewer a position indicator graphically representing a relative position of the two different ones of the series of views within the series of views.
摘要翻译： 一种用于处理用于在3D显示器160上显示的三维[3D]图像数据122的装置120，3D显示器布置成在观察锥180中相邻地发射3D图像数据的一系列视图100，该系列 的观点使得能够观察到视觉锥体中的两个不同视角的观察锥体在观察锥体的多个观察位置182,184处能够自动立体观察3D图像数据，并且该装置包括指示器发生器140，该指示器生成器140被布置成在 当在3D显示器上显示时，3D图像数据向用户提供图形化地表示该系列视图内的两个不同视图的相对位置的位置指示器。
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公开(公告)号：US09036715B2
公开(公告)日：2015-05-19
申请号：US13184928
申请日：2011-07-18
摘要： In a method and apparatus for encoding an input video bitstream to produce an encoded output bitstream, a base stream is enhanced based on enhancement control parameters. At least one picture content parameter is extracted from the enhanced base stream. At least one picture content parameter is extracted from the input video bitstream. The enhanced picture content parameters are compared with the input picture content parameters. An output from the comparison step is received and the enhancement control parameters are calculated so as to minimize the difference between the input picture content parameters and the enhanced picture content parameters. The calculated control parameters are incorporated into the encoded output bitstream.
摘要翻译： 在用于对输入视频比特流进行编码以产生经编码的输出比特流的方法和装置中，基于增强控制参数来增强基本流。 从增强的基本流中提取至少一个图像内容参数。 从输入视频比特流中提取至少一个图像内容参数。 将增强图像内容参数与输入图像内容参数进行比较。 接收比较步骤的输出，并且计算增强控制参数，以使输入图像内容参数和增强图像内容参数之间的差异最小化。 所计算的控制参数被并入编码的输出比特流中。
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