中科微点-全球专利检索

  1. Login
  2. Sign Up

Search Results

12 records (took 0.018 seconds)

    Encoding, Decoding, and Representing High Dynamic Range Images
    4.
    发明申请
    Encoding, Decoding, and Representing High Dynamic Range Images 有权

    公开(公告)号：US20130071022A1

    公开(公告)日：2013-03-21

    申请号：US13675643

    申请日：2012-11-13

    Applicant: Dolby Laboratories Licensing Corporation

    Inventor： Wenhui Jia ,  Ajit Ninan ,  Arkady Ten ,  Gregory John Ward

    IPC: G06T9/00

    CPC classification number: G06T9/00 ,  H04N9/67 ,  H04N9/77

    Abstract: Techniques are provided to encode and decode image data comprising a tone mapped (TM) image with HDR reconstruction data in the form of luminance ratios and color residual values. In an example embodiment, luminance ratio values and residual values in color channels of a color space are generated on an individual pixel basis based on a high dynamic range (HDR) image and a derivative tone-mapped (TM) image that comprises one or more color alterations that would not be recoverable from the TM image with a luminance ratio image. The TM image with HDR reconstruction data derived from the luminance ratio values and the color-channel residual values may be outputted in an image file to a downstream device, for example, for decoding, rendering, and/or storing. The image file may be decoded to generate a restored HDR image free of the color alterations.

    Encoding, decoding, and representing high dynamic range images
    6.
    发明授权
    Encoding, decoding, and representing high dynamic range images 有权

    公开(公告)号：US08508617B2

    公开(公告)日：2013-08-13

    申请号：US13675643

    申请日：2012-11-13

    Applicant: Dolby Laboratories Licensing Corporation

    Inventor： Wenhui Jia ,  Ajit Ninan ,  Arkady Ten ,  Gregory John Ward

    IPC: H04N9/73 ,  H04N3/14 ,  H04N5/46 ,  G06K9/40 ,  G06K9/00

    CPC classification number: G06T9/00 ,  H04N9/67 ,  H04N9/77

    Abstract: Techniques are provided to encode and decode image data comprising a tone mapped (TM) image with HDR reconstruction data in the form of luminance ratios and color residual values. In an example embodiment, luminance ratio values and residual values in color channels of a color space are generated on an individual pixel basis based on a high dynamic range (HDR) image and a derivative tone-mapped (TM) image that comprises one or more color alterations that would not be recoverable from the TM image with a luminance ratio image. The TM image with HDR reconstruction data derived from the luminance ratio values and the color-channel residual values may be outputted in an image file to a downstream device, for example, for decoding, rendering, and/or storing. The image file may be decoded to generate a restored HDR image free of the color alterations.

    Encoding, decoding, and representing high dynamic range images
    9.
    发明授权
    Encoding, decoding, and representing high dynamic range images 有权
    编码，解码和表示高动态范围图像

    公开(公告)号：US09036042B2

    公开(公告)日：2015-05-19

    申请号：US13938795

    申请日：2013-07-10

    Applicant: Dolby Laboratories Licensing Corporation

    Inventor： Wenhui Jia ,  Ajit Ninan ,  Arkady Ten ,  Gregory John Ward

    IPC: H04N5/228 ,  H04N9/73 ,  H04N5/46 ,  H04N11/02 ,  G06T9/00 ,  H04N9/67 ,  H04N9/77 ,  H04N5/235 ,  H04N19/169

    CPC classification number: H04N19/124 ,  G06T9/00 ,  H04N5/2355 ,  H04N9/67 ,  H04N9/77 ,  H04N19/136 ,  H04N19/169 ,  H04N19/182 ,  H04N19/186 ,  H04N19/30 ,  H04N19/44 ,  H04N19/50 ,  H04N19/70

    Abstract: Techniques are provided to encode and decode image data comprising a tone mapped (TM) image with HDR reconstruction data in the form of luminance ratios and color residual values. In an example embodiment, luminance ratio values and residual values in color channels of a color space are generated on an individual pixel basis based on a high dynamic range (HDR) image and a derivative tone-mapped (TM) image that comprises one or more color alterations that would not be recoverable from the TM image with a luminance ratio image. The TM image with HDR reconstruction data derived from the luminance ratio values and the color-channel residual values may be outputted in an image file to a downstream device, for example, for decoding, rendering, and/or storing. The image file may be decoded to generate a restored HDR image free of the color alterations.

    Abstract translation: 提供了技术来编码和解码包括色调映射（TM）图像的图像数据，其中HDR重建数据以亮度比和颜色残余值的形式。 在一个示例实施例中，基于高动态范围（HDR）图像和包括一个或多个的图像的导数色调映射（TM）图像，在各个像素的基础上产生颜色空间的颜色通道中的亮度比值和残差值 不能从具有亮度比图像的TM图像中恢复的颜色变化。 可以将从亮度比值和颜色通道残差导出的具有HDR重建数据的TM图像输出到图像文件到下游装置，例如用于解码，渲染和/或存储。 图像文件可以被解码以生成没有颜色变化的恢复的HDR图像。

Patent Agency Ranking