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    • 3. 发明公开
    • METHOD AND APPARATUS FOR UP-SCALING AN IMAGE
    • 用于放大图像的方法和设备
    • EP3167428A1
    • 2017-05-17
    • EP15732284.3
    • 2015-07-01
    • Thomson Licensing
    • GANDOLPH, DirkSALVADOR MARCOS, JordiPUTZKE-ROEMING, WolframKOCHALE, Axel
    • G06T3/40
    • G06T3/4053G06T5/50
    • A method and an apparatus (20) for up-scaling an input image (12) are described, wherein a cross-scale self-similarity matching using superpixels is employed to obtain substitutes for missing details in an up-scaled image. The apparatus (20) comprises a superpixel vector generator (7) configured to generate (10) consistent superpixels for the input image (12) and one or more auxiliary input images (I1, I3) and to generate (11) superpixel test vectors based on the consistent superpixels. A matching block (5) performs a cross-scale self-similarity matching (12) across the input image (12) and the one or more auxiliary input images (I1, I3) using the superpixel test vectors. Finally, an output image generator (22) generates (13) an up-scaled output image (O2) using results of the cross-scale self-similarity matching (12).
    • 描述了用于放大输入图像(I2)的方法和设备(20),其中使用超级像素的跨尺度自相似性匹配被用来获得放大图像中丢失细节的替代。 所述设备(20)包括超像素矢量生成器(7),所述超像素矢量生成器被配置为生成(10)用于输入图像(I 2)和一个或多个辅助输入图像(I 1,I 3)的一致超像素并且基于 在一致的超像素上。 匹配块(5)使用超像素测试矢量在输入图像(I2)和一个或多个辅助输入图像(I1,I3)上执行跨比例自相似匹配(12)。 最后,输出图像生成器(22)使用跨尺度自相似匹配(12)的结果生成(13)放大的输出图像(O2)。
    • 5. 发明公开
    • METHOD AND APPARATUS FOR GENERATING A SUPER-RESOLVED IMAGE FROM A SINGLE IMAGE
    • 方法和设备,用于生成高分辨率图像从单
    • EP2979242A1
    • 2016-02-03
    • EP14713103.1
    • 2014-03-26
    • Thomson Licensing
    • DEAMO, AlbertoSALVADOR MARCOS, JordiKOCHALE, Axel
    • G06T3/40
    • G06T3/4053G06K9/6215G06K2009/6213G06T3/4092G06T7/13G06T7/73G06T2207/20201
    • Known methods for generating super-resolved images from single input images have various disadvantages. An improved method for generating a super-resolved image from a single low-resolution input image comprises up-scaling the input image to generate an initial version of the super-resolved image, searching, for each patch of the low-resolution input image, similar low-resolution patches in first search windows within down-sampled versions of the input image, and determining, in less down-sampled versions of the input image, high-resolution patches that correspond to the similar low-resolution patches. The determined high-resolution patches are cropped, a second search window is determined in the initial version of the super-resolved image, and a best-matching position for each cropped high-resolution patch is searched within the second search window. Finally, each cropped high-resolution patch is added to the super-resolved image at its respective best-matching position.
    • 从单一的输入图像生成超分辨图像的已知方法有许多缺点。 用于从单个低分辨率输入图像生成一个超分辨图像的改进的方法包括向上缩放输入图像的超分辨图像的初始版本,以生成,搜索,对于低分辨率输入图像的每个补丁, 在输入图像的下采样版本,和矿业确定性内第一个搜索窗口类似的低分辨率的补丁,在输入图像的少降采样版本,高分辨率的补丁也对应于类似的低分辨率补丁。 确定性开采高分辨率补丁被裁剪,第二搜索窗口是确定性的开采在超分辨图像的初始版本,以及用于每一个最佳匹配位置裁剪高分辨率补片的第二搜索窗内的搜索。 最后,每个裁剪高分辨率补丁在其respectivement最匹配的位置加入到超分辨图像。