专利快速检索-快速检索全球专利，免费商用专利数据库-IPRDB

1. 发明授权

US10158835B2 Extending image dynamic range 有权
公开(公告)号：US10158835B2
公开(公告)日：2018-12-18
申请号：US15000782
申请日：2016-01-19
申请人： Dolby Laboratories Licensing Corporation
发明人： Walter Gish , Zhen Li , Donald Pian , Christopher J. Vogt , Hyung-Suk Kim , David Ruhoff
IPC分类号： H04N9/67 , G09G5/02 , H04N9/68 , H04N9/12 , G06F3/14 , G09G5/10
摘要： Enhancing image dynamic range is described. An input video signal that is represented in a first color space with a first color gamut, which is related to a first dynamic range, is converted to a video signal that is represented in a second color space with a second color gamut. The second color space is associated with a second dynamic range. At least two (e.g., three) color-related components of the converted video signal are mapped over the second dynamic range.

2. 发明申请

US20140348426A1 Spectral Image Processing 有权
标题翻译：光谱图像处理
公开(公告)号：US20140348426A1
公开(公告)日：2014-11-27
申请号：US14369073
申请日：2012-12-20
申请人： Dolby Laboratories Licensing Corporation
发明人： Walter Gish , Christopher J. Vogt , David Ruhoff , Jon S. McElvain
IPC分类号： G06T7/40
CPC分类号： H04N9/646 , G06T7/90 , G06T2207/10024 , H04N1/60 , H04N9/643 , H04N9/735 , H04N17/002 , H04N17/02
摘要： A substantially rectangular spectral representation is synthesized, which is adapted to produce either (a) image capture device sensor outputs if applied to an image capture device or (b) color values if applied to corresponding analysis functions. Spectral expansion, which can be used in various image processing methods, is achieved with the synthesized spectral representation.
摘要翻译：合成基本上矩形的光谱表示，其适于产生（a）如果应用于图像捕获装置的图像捕获装置传感器输出，或（b）如果应用于相应的分析功能，则颜色值。可以用于各种图像处理方法的光谱扩展通过合成的光谱表示来实现。

3. 发明申请

US20140098858A1 High Precision Encoding and Decoding of Video Images 审中-公开
标题翻译：视频图像的高精度编码和解码
公开(公告)号：US20140098858A1
公开(公告)日：2014-04-10
申请号：US14101759
申请日：2013-12-10
申请人： Dolby Laboratories Licensing Corporation
发明人： Gary A. Demos , David Ruhoff
IPC分类号： H04N7/26
CPC分类号： H04N19/124 , H04N19/136 , H04N19/182 , H04N19/184 , H04N19/186 , H04N19/196 , H04N19/45 , H04N19/60 , H04N19/61 , H04N19/90
摘要： Methods, systems, and computer programs for improved quality video compression. Image quality from MPEG-style video coding may be improved by preserving a higher number of bits during intermediate encoding and decoding processing steps. Problems of inverse discrete cosine transform (IDCT) mismatch can be eliminated by exactly matching the IDCT function numerical algorithm of the decoder to the IDCT function numerical algorithm used for the decoding portion of the encoder. Also included is an application of high precision compression to wide dynamic range images by extending the range of the “quantization parameter” or “QP”. The extension of QP may be accomplished either by increasing the range of QP directly, or indirectly through a non-linear transformation. Also included is an application of extended intermediate processing precision and an extended QP range to reduced contrast regions of an image to extend the precision with which the low-contrast portions are compression coded.
摘要翻译：用于改进质量视频压缩的方法，系统和计算机程序。可以通过在中间编码和解码处理步骤期间保留较高数量的比特来改进来自MPEG风格视频编码的图像质量。通过将解码器的IDCT函数数值算法与编码器解码部分的IDCT函数数值算法完全匹配，可以消除逆离散余弦变换（IDCT）失配问题。还包括通过扩展“量化参数”或“QP”的范围来对宽动态范围图像进行高精度压缩的应用。 QP的扩展可以通过直接增加QP的范围或者通过非线性变换来间接地实现。还包括扩展中间处理精度和扩展QP范围的应用，以减少图像的对比度区域，以扩大低对比度部分被压缩编码的精度。

4. 发明申请

US20140022410A1 Spectral Synthesis for Image Capture Device Processing 有权
公开(公告)号：US20140022410A1
公开(公告)日：2014-01-23
申请号：US14039415
申请日：2013-09-27
申请人： Dolby Laboratories Licensing Corporation
发明人： Walter C. Gish , David Ruhoff , Jon S. McElvain , Christopher J. Vogt , Kimball Darr Thurston, III
IPC分类号： H04N9/73
CPC分类号： H04N9/646 , G06T7/90 , G06T2207/10024 , H04N1/60 , H04N9/643 , H04N9/735 , H04N17/002 , H04N17/02
摘要： A substantially rectangular spectral representation is synthesized, which is adapted to produce image capture device sensor outputs if applied to an image capture device. The synthesized substantially rectangular spectral representation can be utilized in generating output color values of an output color space from image capture device sensor outputs, where the image capture device sensor outputs correspond to an image captured by an image capture device. The generated output color values correspond to colors perceived by the human visual system for the same image as that captured by the image capture device. Image capture device gamut is also determined.

5. 发明授权

US10721453B2 Compatible stereoscopic video delivery 有权
公开(公告)号：US10721453B2
公开(公告)日：2020-07-21
申请号：US16534716
申请日：2019-08-07
申请人： Dolby Laboratories Licensing Corporation
发明人： Walter J. Husak , David Ruhoff , Alexandros Tourapis , Athanasios Leontaris
IPC分类号： H04N13/00 , H04N13/161 , H04N13/139 , H04N13/15 , H04N13/194 , H04N19/597 , H04N19/61 , H04N19/60 , H04N19/59 , H04N19/00
摘要： Stereoscopic images are subsampled and placed in a “checkerboard” pattern in an image. The image is encoded in a monoscopic video format. The monoscopic video is transmitted to a device where the “checkerboard” is decoded. Portions of the checkerboard (e.g., “black” portions) are used to reconstruct one of the stereoscopic images and the other portion of the checkerboard (e.g., “white” portions) are used to reconstruct the other image. The subsamples are, for example, taken from the image in a location coincident to the checkerboard position in which the subsamples are encoded.

6. 发明申请

US20190356918A1 HIGH PRECISION ENCODING AND DECODING OF VIDEO IMAGES 审中-公开
公开(公告)号：US20190356918A1
公开(公告)日：2019-11-21
申请号：US16364011
申请日：2019-03-25
申请人： DOLBY LABORATORIES LICENSING CORPORATION
发明人： Gary A. Demos , David Ruhoff
IPC分类号： H04N19/124 , H04N19/90 , H04N19/44 , H04N19/184 , H04N19/182 , H04N19/196 , H04N19/136 , H04N19/60 , H04N19/61 , H04N19/186
摘要： Methods, systems, and computer programs for improved quality video compression. Image quality from MPEG-style video coding may be improved by preserving a higher number of bits during intermediate encoding and decoding processing steps. Problems of inverse discrete cosine transform (IDCT) mismatch can be eliminated by exactly matching the IDCT function numerical algorithm of the decoder to the IDCT function numerical algorithm used for the decoding portion of the encoder. Also included is an application of high precision compression to wide dynamic range images by extending the range of the “quantization parameter” or “QP”. The extension of QP may be accomplished either by increasing the range of QP directly, or indirectly through a non-linear transformation. Also included is an application of extended intermediate processing precision and an extended QP range to reduced contrast regions of an image to extend the precision with which the low-contrast portions are compression coded.

7. 发明申请

US20190191143A1 Compatible Stereoscopic Video Delivery 审中-公开
公开(公告)号：US20190191143A1
公开(公告)日：2019-06-20
申请号：US16285007
申请日：2019-02-25
申请人： Dolby Laboratories Licensing Corporation
发明人： Walter J. Husak , David Ruhoff , Alexandros Tourapis , Athanasios Leontaris
IPC分类号： H04N13/161 , H04N19/00 , H04N19/59 , H04N19/60 , H04N13/194 , H04N19/597 , H04N13/15 , H04N13/139 , H04N19/61
CPC分类号： H04N13/161 , H04N13/139 , H04N13/15 , H04N13/194 , H04N19/00 , H04N19/59 , H04N19/597 , H04N19/60 , H04N19/61
摘要： Stereoscopic images are subsampled and placed in a “checkerboard” pattern in an image. The image is encoded in a monoscopic video format. The monoscopic video is transmitted to a device where the “checkerboard” is decoded. Portions of the checkerboard (e.g., “black” portions) are used to reconstruct one of the stereoscopic images and the other portion of the checkerboard (e.g., “white” portions) are used to reconstruct the other image. The subsamples are, for example, taken from the image in a location coincident to the checkerboard position in which the subsamples are encoded.

8. 发明授权

US10264235B2 Compatible stereoscopic video delivery 有权
公开(公告)号：US10264235B2
公开(公告)日：2019-04-16
申请号：US16044836
申请日：2018-07-25
申请人： Dolby Laboratories Licensing Corporation
发明人： Walter J. Husak , David Ruhoff , Alexandros Tourapis , Athanasios Leontaris
IPC分类号： H04N13/00 , H04N13/161 , H04N13/139 , H04N13/15 , H04N13/194 , H04N19/597 , H04N19/61 , H04N19/60 , H04N19/59 , H04N19/00
摘要： Stereoscopic images are subsampled and placed in a “checkerboard” pattern in an image. The image is encoded in a monoscopic video format. The monoscopic video is transmitted to a device where the “checkerboard” is decoded. Portions of the checkerboard (e.g., “black” portions) are used to reconstruct one of the stereoscopic images and the other portion of the checkerboard (e.g., “white” portions) are used to reconstruct the other image. The subsamples are, for example, taken from the image in a location coincident to the checkerboard position in which the subsamples are encoded.

9. 发明授权

US09479750B2 Spectral synthesis for image capture device processing 有权
公开(公告)号：US09479750B2
公开(公告)日：2016-10-25
申请号：US14039415
申请日：2013-09-27
申请人： Dolby Laboratories Licensing Corporation
发明人： Walter C. Gish , David Ruhoff , Jon S. McElvain , Christopher J. Vogt , Kimball Darr Thurston, III
IPC分类号： H04N9/64 , H04N1/60 , H04N9/73 , H04N17/02 , G06T7/40 , H04N17/00
CPC分类号： H04N9/646 , G06T7/90 , G06T2207/10024 , H04N1/60 , H04N9/643 , H04N9/735 , H04N17/002 , H04N17/02
摘要： A substantially rectangular spectral representation is synthesized, which is adapted to produce image capture device sensor outputs if applied to an image capture device. The synthesized substantially rectangular spectral representation can be utilized in generating output color values of an output color space from image capture device sensor outputs, where the image capture device sensor outputs correspond to an image captured by an image capture device. The generated output color values correspond to colors perceived by the human visual system for the same image as that captured by the image capture device. Image capture device gamut is also determined.

10. 发明申请

US20140118491A1 Encoder Optimization of Stereoscopic Video Delivery Systems 有权
标题翻译：立体视频传输系统的编码器优化
公开(公告)号：US20140118491A1
公开(公告)日：2014-05-01
申请号：US14028438
申请日：2013-09-16
申请人： Dolby Laboratories Licensing Corporation
发明人： Alexandros Tourapis , Walter J. Husak , Athanasios Leontaris , David Ruhoff
IPC分类号： H04N13/00
CPC分类号： H04N13/161 , H04N19/00 , H04N19/117 , H04N19/147 , H04N19/167 , H04N19/176 , H04N19/597 , H04N19/61 , H04N19/70
摘要： Controlling a feature of an encoding process for regions of an image pattern representing more than one image when the regions include an amount of disparity in the represented images that would result in cross-contamination between the represented images if encoded with the feature. The control may be, for example, any of, turning the encoding feature off, using the encoding feature less often than when encoding an image pattern representing a single image, negatively biasing the encoding feature, and enabling the encoding feature for regions determined to have zero or near zero disparity and disabling the feature for all other regions. The represented images comprise, for example, any of a stereoscopic view, multiple stereoscopic views, multiple views of a same scene, and multiple unrelated views.
摘要翻译：当所述区域包括所述图像中的视差的量时，如果对所述特征进行了编码，则控制所述图像模式的区域的代码多于一个图像的区域的特征，所述视差将导致所述表示的图像之间的交叉污染。控制可以是例如关闭编码特征中的任何一个，使用编码特征比编码表示单个图像的图像模式时频繁地编码，负偏压编码特征，以及使确定具有的区域的编码特征零或接近零差异，并禁用所有其他区域的功能。所表示的图像例如包括立体视图，多个立体视图，相同场景的多个视图以及多个不相关视图中的任何一个。

你已经成功收藏专利！

检索式保存成功!

IPRDB

热门服务

关于我们

友情链接

联系方式