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    • 34. 发明申请
    • METHODS AND APPARATUS FOR DITHER SELECTION
    • 用于选择的方法和装置
    • US20120236021A1
    • 2012-09-20
    • US13279192
    • 2011-10-21
    • Manu ParmarJennifer Lee GilleAlan Lewis
    • Manu ParmarJennifer Lee GilleAlan Lewis
    • G09G5/02G09G5/10
    • G09G3/3466G09G3/2044G09G3/2048G09G2310/0205G09G2310/04G09G2320/0261G09G2320/0613G09G2320/103G09G2340/0435
    • Systems, methods and apparatus including computer programs encoded on computer storage media optimize display image quality under a variety of imaging environments. Dynamic frame streams such as those present in video applications may require a higher frame rate to adequately convey motion in the stream. A line multiplying image pipeline may be utilized for dynamic frames, which lowers the resolution of the displayed image. When dithering line multiplied images, a noise signal including asymmetrical high frequency components around zero frequency may be utilized. The display of static frames, such as photographs, may be achieved with acceptable image quality using a relatively lower display frame rate. Such a frame rate may enable the display of a high resolution image. A noise signal tailored for higher resolution, non line multiplied frames, such as a noise signal with symmetric high frequency components around zero frequency may be utilized for static frames.
    • 包括在计算机存储介质上编码的计算机程序的系统,方法和装置在各种成像环境下优化显示图像质量。 诸如在视频应用中存在的动态帧流可能需要更高的帧速率来充分地传送流中的运动。 行乘法图像管线可以用于动态帧,这降低了显示图像的分辨率。 当抖动线倍增图像时,可以利用包括零频率周围的不对称高频分量的噪声信号。 可以使用相对较低的显示帧速率,以可接受的图像质量来实现诸如照片的静态帧的显示。 这样的帧速率可以实现高分辨率图像的显示。 针对较高分辨率,非线相乘帧(例如具有零频率附近的对称高频分量的噪声信号)的噪声信号可用于静态帧。