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    • 6. 发明申请
    • GAMUT ADAPTATION
    • 游戏适应
    • WO2008062355A1
    • 2008-05-29
    • PCT/IB2007/054677
    • 2007-11-16
    • KONINKLIJKE PHILIPS ELECTRONICS N.V.MUIJS, Remco, T., J.KUANG, Jiangtao
    • MUIJS, Remco, T., J.KUANG, Jiangtao
    • H04N1/60
    • H04N1/6058
    • 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.
    • 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- *),一起在色度平面内形成输入点(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。
    • 8. 发明申请
    • ENCODING AND DECODING OF AUDIO OBJECTS
    • 编码和解码音频对象
    • WO2008035275A2
    • 2008-03-27
    • PCT/IB2007/053748
    • 2007-09-17
    • KONINKLIJKE PHILIPS ELECTRONICS N.V.BREEBAART, Dirk J.
    • BREEBAART, Dirk J.
    • G10L19/00H04S3/00
    • G10L19/20G10L19/008
    • An audio system comprises an encoder (209) which encodes audio objects in an encoding unit (403) that generates a down-mix audio signal and parametric data representing the plurality of audio objects. The down-mix audio signal and parametric data is transmitted to a decoder (215) which comprises a decoding unit (301) which generates approximate replicas of the audio objects and a rendering unit (303) which generates an output signal from the audio objects. The decoder (215) furthermore contains a processor (501) for generating encoding modification data which is sent to the encoder (209). The encoder (209) then modifies the encoding of the audio objects, and in particular modifies the parametric data, in response to the encoding modification data. The approach allows manipulation of the audio objects to be controlled by the decoder (215) but performed fully or partly by the encoder (209). Thus, the manipulation may be performed on the actual independent audio objects rather than on approximate replicas thereby providing improved performance.
    • 音频系统包括编码器(209),其在编码单元(403)中编码音频对象(403),该编码单元生成缩减混音音频信号和表示多个音频对象的参数数据。 缩减混音音频信号和参数数据被发送到解码器(215),该解码器包括生成音频对象的近似副本的解码单元(301)和从音频对象生成输出信号的呈现单元(303)。 解码器(215)还包含处理器(501),用于生成发送给编码器(209)的编码修改数据。 编码器(209)然后响应于编码修改数据修改音频对象的编码,并且具体地修改参数数据。 该方法允许操纵要由解码器(215)控制的音频对象,但完全或部分由编码器(209)执行。 因此,可以对实际的独立音频对象而不是近似复制品执行操纵,从而提供改进的性能。