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    Methods and systems for improving display resolution in achromatic images using sub-pixel sampling and visual error filtering.
    2.
    发明授权
    Methods and systems for improving display resolution in achromatic images using sub-pixel sampling and visual error filtering. 有权
    用于使用子像素采样和视觉误差滤波来改善消色差图像中的显示分辨率的方法和系统。

    公开(公告)号：US07194147B2

    公开(公告)日：2007-03-20

    申请号：US10888679

    申请日：2004-07-08

    申请人： Rajesh Reddy K. Kovvuri ,  Scott J. Daly

    发明人： Rajesh Reddy K. Kovvuri ,  Scott J. Daly

    IPC分类号： G06K9/32

    CPC分类号： G09G5/395 ,  G09G3/2059 ,  G09G3/2074 ,  G09G5/00 ,  G09G5/02 ,  G09G2320/02 ,  G09G2340/0414 ,  G09G2340/0421 ,  G09G2340/0428 ,  G09G2340/0457

    摘要： Embodiments of the present invention provide systems and methods for converting an achromatic, higher-resolution image to a lower-resolution image with reduced visible errors. These systems and methods comprise a sub-pixel sampling performed on a higher-resolution image. The sub-pixel sampled image is then converted to an opponent color domain image that is separated into separate luminance and chrominance channels. These chrominance channels are then high-pass filtered and combined with the luminance channel to form a filtered opponent color domain image.

    摘要翻译： 本发明的实施例提供了用于将无彩色，更高分辨率图像转换成具有减少的可见误差的较低分辨率图像的系统和方法。 这些系统和方法包括在较高分辨率图像上执行的子像素采样。 然后将子像素采样图像转换成分离成独立亮度和色度通道的对手色域图像。 然后将这些色度通道进行高通滤波并与亮度通道组合以形成滤波后的对应色域图像。

    Methods and systems for improving display resolution in images using sub-pixel sampling and visual error filtering
    3.
    发明授权
    Methods and systems for improving display resolution in images using sub-pixel sampling and visual error filtering 失效

    公开(公告)号：US06608632B2

    公开(公告)日：2003-08-19

    申请号：US09735424

    申请日：2000-12-12

    申请人： Scott J. Daly ,  Rajesh Reddy K. Kovvuri

    发明人： Scott J. Daly ,  Rajesh Reddy K. Kovvuri

    IPC分类号： G09G502

    CPC分类号： G09G3/2003 ,  G09G2340/0457

    摘要： Embodiments of the present invention provide systems and methods for converting a higher-resolution image to a lower-resolution image with reduced visible errors. These embodiments comprise splitting a higher-resolution opponent color domain (OCD) image into separate initial luminance and initial chrominance channels followed by sub-pixel sampling on said initial luminance channel thereby creating an additive color domain (ACD) luminance image. This ACD luminance image is then converted into an OCD luminance image and split into separate sub-pixel sampled (SPS) luminance and SPS chrominance channels. The SPS chrominance channels are high-pass filtered and the initial chrominance channels are low-pass filtered. The filtered initial chrominance channels are sub-sampled and combined with the high-pass filtered SPS chrominance channels. These combined chrominance channels are then combined with said SPS luminance channel to form an error-reduced lower-resolution image.