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    • 2. 发明授权
    • Multi-modal tone-mapping of images
    • 图像的多模式色调映射
    • US08290295B2
    • 2012-10-16
    • US12396590
    • 2009-03-03
    • Antonio CriminisiEvgeny SalnikovToby Sharp
    • Antonio CriminisiEvgeny SalnikovToby Sharp
    • G06K9/38
    • G06K9/38G06T5/009G06T5/40G06T2207/10032G06T2207/10081G06T2207/20208G06T2207/30004G06T2207/30181
    • A system for multi-modal mapping of images is described. Embodiments are described where the image mapping system is used for visualizing high dynamic range images such as medical images, satellite images, high dynamic range photographs and the like and also for compressing such images. In examples, high bit-depth images are tone-mapped for display on equipment of lower bit-depth without loss of detail. In embodiments, the image mapping system computes statistics describing an input image and fits a multi-modal model to those statistics efficiently. In embodiments, the multi-modal model is a Gaussian mixture model and a plurality of sigmoid functions corresponding to the multi-modal model are obtained. In an embodiment the sigmoid functions are added to form a tone-mapping function which is used to transform a high bit-depth image such as 16 or 12 bits per pixel to a low bit-depth image such as 8 bits per pixel.
    • 描述了用于图像的多模态映射的系统。 描述实施例,其中图像映射系统用于可视化诸如医学图像,卫星图像,高动态范围照片等的高动态范围图像,并且还用于压缩这样的图像。 在示例中,高位深图像被色调映射以便在较低位深度的设备上显示而不损失细节。 在实施例中,图像映射系统计算描述输入图像的统计量,并将多模态模型有效地适应于这些统计。 在实施例中,多模态模型是高斯混合模型,并且获得对应于多模态模型的多个S形函数。 在一个实施例中,添加S形功能以形成色调映射功能,其用于将诸如每像素16或12位的高位深度图像变换为诸如每像素8位的低位深度图像。
    • 3. 发明申请
    • Multi-Modal Tone-Mapping of Images
    • 图像的多模态色调映射
    • US20100226547A1
    • 2010-09-09
    • US12396590
    • 2009-03-03
    • Antonio CriminisiEvgeny SalnikovToby Sharp
    • Antonio CriminisiEvgeny SalnikovToby Sharp
    • G06K9/00
    • G06K9/38G06T5/009G06T5/40G06T2207/10032G06T2207/10081G06T2207/20208G06T2207/30004G06T2207/30181
    • A system for multi-modal mapping of images is described. Embodiments are described where the image mapping system is used for visualizing high dynamic range images such as medical images, satellite images, high dynamic range photographs and the like and also for compressing such images. In examples, high bit-depth images are tone-mapped for display on equipment of lower bit-depth without loss of detail. In embodiments, the image mapping system computes statistics describing an input image and fits a multi-modal model to those statistics efficiently. In embodiments, the multi-modal model is a Gaussian mixture model and a plurality of sigmoid functions corresponding to the multi-modal model are obtained. In an embodiment the sigmoid functions are added to form a tone-mapping function which is used to transform a high bit-depth image such as 16 or 12 bits per pixel to a low bit-depth image such as 8 bits per pixel.
    • 描述了用于图像的多模态映射的系统。 描述实施例,其中图像映射系统用于可视化诸如医学图像,卫星图像,高动态范围照片等的高动态范围图像,并且还用于压缩这样的图像。 在示例中,高位深图像被色调映射以便在较低位深度的设备上显示而不损失细节。 在实施例中,图像映射系统计算描述输入图像的统计量,并将多模态模型有效地适应于这些统计。 在实施例中,多模态模型是高斯混合模型,并且获得对应于多模态模型的多个S形函数。 在一个实施例中,添加S形功能以形成色调映射功能,其用于将诸如每像素16或12位的高位深度图像变换为诸如每像素8位的低位深度图像。