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81.发明公开VIDEO ENCODING METHOD AND APPARATUS USING LOW-COMPLEXITY FREQUENCY TRANSFORMATION, AND VIDEO DECODING METHOD AND APPARATUS 审中-公开VIDEOODIERVERFAHREN UND -VORRICHTUNG MIT NIEDERKOMPLEXER FREQUENZUMWANDLUNG SOWIE VIDEOCODIERVERFAHREN UND -VORRICHTUNG
公开(公告)号：EP2395755A2
公开(公告)日：2011-12-14
申请号：EP10738768.0
申请日：2010-02-08
发明人： CHEON, Min-Su , KIM, Il-Koo , LEE, Tammy
CPC分类号： H04N19/18 , H04N19/119 , H04N19/122 , H04N19/129 , H04N19/132 , H04N19/14 , H04N19/176 , H04N19/46 , H04N19/61
摘要： A video encoding method using a low-complexity transformation. The method includes receiving image data of an input picture in predetermined data units, generating coefficients of the predetermined data units by performing a low-complexity transformation on the image data, and outputting the generated coefficients. The low-complexity transformation includes at least one from among a selective frequency-domain transformation that uses a transformation basis for a predetermined frequency-domain, a sub data unit transformation that performs a transformation by respectively selecting and applying transformation bases for a plurality of sub data units divided from the image data, and a scale-down transformation that uses a scale-down rectangular transformation basis that is a combination of a rectangular matrix and a square matrix.
摘要翻译： 一种使用低复杂度变换的视频编码方法。 该方法包括以预定数据单位接收输入图像的图像数据，通过对图像数据执行低复杂度变换并输出所生成的系数，产生预定数据单元的系数。 低复杂度变换包括使用对于预定频域使用变换基础的选择性频域变换中的至少一个，通过分别选择并应用多个子帧的变换基础来执行变换的子数据单元变换 与图像数据分割的数据单元以及使用矩形矩阵和矩形矩阵的组合的按比例缩小的矩形变换进行缩小变换。
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82.发明公开VIDEO ENCODING METHOD AND APPARATUS AND VIDEO DECODING METHOD AND APPARATUS USING RESIDUAL RESIZING 审中-公开VIDEOCODIERUNGSVERFARHEN以及设备和视频解码方法和设备符合RESTUMBEMESSUNG
公开(公告)号：EP2123041A1
公开(公告)日：2009-11-25
申请号：EP08704906.0
申请日：2008-01-22
发明人： LEE, Tammy , HAN, Woo-jin
IPC分类号： H04N7/24
摘要： A video encoding method and apparatus and a video decoding method and apparatus are provided. The video encoding method encodes residual values included in a residual block of a current block after sub-sampling or down-sampling the residual values, thereby encoding and decoding the current block using a small number of residual values and thus improving the compression rate of video encoding.
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83.发明公开METHOD AND APPARATUS FOR ENCODING/DECODING FGS LAYERS USING WEIGHTING FACTOR 审中-公开编码/解码方法和设备使用FGS的加权系数LAYERS
公开(公告)号：EP2008463A2
公开(公告)日：2008-12-31
申请号：EP07745762.0
申请日：2007-04-02
发明人： LEE, Tammy , HAN, Woo-Jin
IPC分类号： H04N7/24
CPC分类号： H04N19/34 , H04N19/132 , H04N19/577 , H04N19/587 , H04N19/59 , H04N19/593
摘要： Provided is a method of encoding FGS layers by using weighted average sums. Method includes calculating a first weighted average sum by using a restored block of n enhanced layer of a previous frame and a restored block of a base layer of a current frame; calculating a second weighted average sum by using a restored block of n enhanced layer of a next frame and a restored block of a base layer of the current frame; generating a prediction signal of n enhanced layer of the current frame by adding residual data of (n 1) enhanced layer of the current frame to a sum of the first weighted average sum and the second weighted average sum; and encoding residual data of n' enhanced layer, which is obtained by subtracting the generated prediction signal of n enhanced layer from the restored block of n' enhanced layer of the current frame.
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公开(公告)号：EP4276744A1
公开(公告)日：2023-11-15
申请号：EP22763484.7
申请日：2022-02-11
发明人： SHIN, Hanul , KANG, Soomin , AHN, Iljun , SONG, Youngchan , LEE, Tammy
摘要： An image processing apparatus and a method of operating the same are provided. The method includes: a memory storing one or more instructions; and a processor configured to execute the one or more instructions stored in the memory to obtain first frequency coefficient information by converting a first image into a frequency domain in units of blocks having a preset size, obtain correlation information indicating a correlation between at least one block of the first frequency coefficient information and a first kernel, generate a weight corresponding to the first frequency coefficient information based on the correlation information, generate second frequency coefficient information by rearranging coefficients included in the first frequency coefficient information, wherein the one or more of the coefficients having a same frequency is arranged into a same group, and obtain quality information of the first image based on the weight and the second frequency coefficient information.
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公开(公告)号：EP4231639A3
公开(公告)日：2023-08-30
申请号：EP23180140.8
申请日：2012-10-29
发明人： LEE, Tammy , CHEN, Jianle
IPC分类号： H04N19/105 , H04N19/176 , H04N19/593 , H04N19/11 , H04N19/136 , H04N19/182 , H04N19/159
摘要： A method and apparatus for intra predicting a video. The method includes: determining availability of a predetermined number of adjacent pixels used for intra prediction of a current block; if a first adjacent pixel is unavailable, searching for a second adjacent pixel that is available by searching the predetermined number of adjacent pixels in a predetermined direction based on the first adjacent pixel; and replacing a pixel value of the first adjacent pixel with a pixel value of a found second adjacent pixel. At least one third adjacent pixel in another location, which is not available and excludes the first adjacent pixel at a predetermined location, is sequentially replaced by using a directly adjacent pixel in a predetermined direction.
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公开(公告)号：EP4231639A2
公开(公告)日：2023-08-23
申请号：EP23180140.8
申请日：2012-10-29
发明人： LEE, Tammy , CHEN, Jianle
IPC分类号： H04N19/105 , H04N19/176 , H04N19/593 , H04N19/11 , H04N19/136 , H04N19/182 , H04N19/159
摘要： A method and apparatus for intra predicting a video. The method includes: determining availability of a predetermined number of adjacent pixels used for intra prediction of a current block; if a first adjacent pixel is unavailable, searching for a second adjacent pixel that is available by searching the predetermined number of adjacent pixels in a predetermined direction based on the first adjacent pixel; and replacing a pixel value of the first adjacent pixel with a pixel value of a found second adjacent pixel. At least one third adjacent pixel in another location, which is not available and excludes the first adjacent pixel at a predetermined location, is sequentially replaced by using a directly adjacent pixel in a predetermined direction.
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公开(公告)号：EP4083874A1
公开(公告)日：2022-11-02
申请号：EP22705003.6
申请日：2022-02-11
发明人： AHN, Iljun , KANG, Soomin , SHIN, Hanul , LEE, Tammy
摘要： An image processing device, including a memory configured to store one or more instructions; and a processor configured to execute the one or more instructions stored in the memory to: obtain kernel coefficient information corresponding to each pixel of a plurality of pixels included in a first image, using a convolution neural network including one or more convolution layers, generate a spatially variant kernel including a kernel corresponding to the each pixel , based on a gradient kernel set including a plurality of gradient kernels corresponding to one or more gradient characteristics of the plurality of pixels, and the kernel coefficient information, and generate a second image, by applying the kernel included in the spatially variant kernel to a region centered on the each pixel, and filtering the first image.
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公开(公告)号：EP3790272A1
公开(公告)日：2021-03-10
申请号：EP19838734.2
申请日：2019-07-16
发明人： AHN, Iljun , PARK, Yongsup , PARK, Jaeyeon , LEE, Tammy , CHEON, Minsu
摘要： Provided is an image processing apparatus for generating a high-resolution image. The image processing apparatus includes a memory storing one or more instructions and a processor configured to execute the one or more instructions stored in the memory, wherein the processor is configured to extract feature information regarding a low-resolution image of a current frame by using a first convolutional neural network, generate, based on the feature information, a first high-resolution image of the current frame, remove flickering of the first high-resolution image by using a high-resolution image of a previous frame, and remove flickering of a high-resolution image of a next frame by using at least one of a flickering-removed second high-resolution image of the current frame, or the feature information.
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公开(公告)号：EP3780601A1
公开(公告)日：2021-02-17
申请号：EP20199452.2
申请日：2012-10-29
发明人： LEE, Tammy , CHEN, Jianle
IPC分类号： H04N19/105 , H04N19/176 , H04N19/593 , H04N19/11 , H04N19/136 , H04N19/182 , H04N19/159
摘要： A method and apparatus for intra predicting a video. The method includes: determining availability of a predetermined number of adjacent pixels used for intra prediction of a current block; if a first adjacent pixel is unavailable, searching for a second adjacent pixel that is available by searching the predetermined number of adjacent pixels in a predetermined direction based on the first adjacent pixel; and replacing a pixel value of the first adjacent pixel with a pixel value of a found second adjacent pixel. At least one third adjacent pixel in another location, which is not available and excludes the first adjacent pixel at a predetermined location, is sequentially replaced by using a directly adjacent pixel in a predetermined direction.
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公开(公告)号：EP3742390A1
公开(公告)日：2020-11-25
申请号：EP20165972.9
申请日：2020-03-26
发明人： LEE, Cheon , KIM, Donghyun , PARK, Yongsup , PARK, Jaeyeon , AHN, Iljun , LEE, Hyunseung , AHN, Taegyoung , MOON, Youngsu , LEE, Tammy
摘要： An image processing apparatus applies an image to a first learning network model to optimize the edges of the image, applies the image to a second learning network model to optimize the texture of the image, and applies a first weight to the first image and a second weight to the second image based on information on the edge areas and the texture areas of the image to acquire an output image.
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