公开(公告)号：US09111367B2

公开(公告)日：2015-08-18

申请号：US14129764

申请日：2012-12-13

申请人： Peking University ,  Peking University Founder Group Co., Ltd. ,  Beijing Founder Electronics Co., Ltd.

发明人： Jiaying Liu ,  Yue Zhou ,  Jie Ren ,  Zongming Guo

IPC分类号： G06K9/36 ,  G06T3/40 ,  H04N19/51 ,  H04N19/59

CPC分类号： G06T3/4053 ,  H04N19/51 ,  H04N19/59

摘要： The present invention relates to the field of digital image enhancement technologies, and more particularly to a non-locality-based super-resolution reconstruction method and device, so as to solve the problem of relatively low resolution of an image after non-locality-based super-resolution reconstruction in the prior art. The method in the embodiment of the present invention comprises: determining a position of a search window where a current macro-block is mapped in each of other image frames; determining a search window where the current pixel block is mapped in the each of the image frames, according to the position of the search window where the macro-block, where the pixel corresponding to the current pixel block is located, is mapped in the each of the image frames, and determining a similarity value of each determined pixel block in the determined search window relative to the current pixel block respectively; and determining an optimized central pixel value of each pixel block according to the determined similarity value. By use of the embodiments of the present invention, the resolution of an image subjected to non-locality-based super-resolution reconstruction is enhanced.

摘要翻译： 本发明涉及数字图像增强技术的领域，更具体地涉及一种基于非局部性的超分辨率重建方法和装置，以解决非局部性之后图像分辨率相对较低的问题 现有技术中的超分辨率重构。 本发明实施例中的方法包括：确定当前宏块映射到其他图像帧的每一个中的搜索窗口的位置; 根据搜索窗口的位置来确定当前像素块被映射到每个图像帧中的搜索窗口，其中与当前像素块相对应的像素所在的宏块被映射到每个 并且确定所确定的搜索窗口中的每个确定的像素块相对于当前像素块的相似度值; 以及根据所确定的相似度值确定每个像素块的优化的中心像素值。 通过使用本发明的实施例，增强了经受基于非局部性的超分辨率重构的图像的分辨率。

公开(公告)号：US20140133780A1

公开(公告)日：2014-05-15

申请号：US14129764

申请日：2012-12-13

申请人： Perking University ,  Beijing Founder Electronics Co., Ltd. ,  Perking University Founder Group Co., Ltd.

发明人： Jiaying Liu ,  Yue Zhou ,  Jie Ren ,  Zongming Guo

IPC分类号： G06T3/40

CPC分类号： G06T3/4053 ,  H04N19/51 ,  H04N19/59

摘要： The present invention relates to the field of digital image enhancement technologies, and more particularly to a non-locality-based super-resolution reconstruction method and device, so as to solve the problem of relatively low resolution of an image after non-locality-based super-resolution reconstruction in the prior art. The method in the embodiment of the present invention comprises: determining a position of a search window where a current macro-block is mapped in each of other image frames; determining a search window where the current pixel block is mapped in the each of the image frames, according to the position of the search window where the macro-block, where the pixel corresponding to the current pixel block is located, is mapped in the each of the image frames, and determining a similarity value of each determined pixel block in the determined search window relative to the current pixel block respectively; and determining an optimized central pixel value of each pixel block according to the determined similarity value. By use of the embodiments of the present invention, the resolution of an image subjected to non-locality-based super-resolution reconstruction is enhanced.

摘要翻译： 本发明涉及数字图像增强技术的领域，更具体地涉及一种基于非局部性的超分辨率重建方法和装置，以解决非局部性之后图像分辨率相对较低的问题 现有技术中的超分辨率重构。 本发明实施例中的方法包括：确定当前宏块映射到其他图像帧的每一个中的搜索窗口的位置; 根据搜索窗口的位置来确定当前像素块被映射到每个图像帧中的搜索窗口，其中与当前像素块相对应的像素所在的宏块被映射到每个 并且确定所确定的搜索窗口中的每个确定的像素块相对于当前像素块的相似度值; 以及根据所确定的相似度值确定每个像素块的优化的中心像素值。 通过使用本发明的实施例，增强了经受基于非局部性的超分辨率重构的图像的分辨率。