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公开(公告)号：US20220329350A1
公开(公告)日：2022-10-13
申请号：US17717766
申请日：2022-04-11
Inventor： Myung Hoon SUNWOO , Jae Hong ROH , U Seok LEE
Abstract: Disclosed are an apparatus and method for successive cancellation flip decoding of a polar code. The apparatus for successive cancellation flip decoding of a polar code according to an embodiment includes an iterative unit subtotal matrix generator configured to generate an iterative unit subtotal matrix corresponding to a preset iterative unit size based on a portion of an entire subtotal matrix, a selection logic configured to determine one or more selection bits based on a bit string representing a position of a bit returned when re-decoding and generate an auxiliary matrix for generating the entire subtotal matrix from the one or more selection bits, and an entire subtotal matrix generator configured to generate the entire subtotal matrix by using the iterative unit subtotal matrix and the auxiliary matrix.
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公开(公告)号：US20220292647A1
公开(公告)日：2022-09-15
申请号：US17694988
申请日：2022-03-15
Inventor： Myung Hoon SUNWOO , Min Cheol Kim
Abstract: There are disclosed an apparatus and method for processing images. The apparatus for processing images according to an embodiment includes an image input unit configured to receive a first image of a Bayer pattern including noise and an image output unit configured to output a noise-removed image by removing noise from the first image using a noise removal model, and the noise removal model includes a color correlation block configured to generate a second image of the Bayer pattern including RGB correlation information about the first image from the first image by performing rearrange and convolution operations on the first image, a discrete cosine transform (DCT) block configured to generate a third image in which a high-frequency component of the first image is highlighted by applying a DCT to the first image, and one or more discrete wavelet transform (DWT) blocks configured to generate a low-frequency feature map and one or more high-frequency feature maps by applying a DWT to a first feature map generated based on the first image, the second image, and the third image, and generate a final feature map in which a high-frequency component and a low-frequency component of the first feature map are highlighted based on the low-frequency feature map and the one or more high-frequency feature maps.
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公开(公告)号：US20220231702A1
公开(公告)日：2022-07-21
申请号：US17455729
申请日：2021-11-19
Inventor： Myung Hoon SUNWOO , Chan HWANGBO , U Seok LEE
Abstract: An apparatus for inserting an error correction code according to an embodiment includes an identifier configured to identify a plurality of critical sets included in a codeword generated using a polar code, based on the number of information bits and a total code length of the codeword, a divider configured to divide the codeword into a plurality of partitions, and an inserter configured to insert an error correction code into each of the divided partitions based on a distribution position of each of the plurality of critical sets.
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Patent Agency Ranking
公开(公告)号：US20220222316A1
公开(公告)日：2022-07-14
申请号：US17291186
申请日：2019-08-21
Inventor： Myung Hoon SUNWOO , Tae Sun KIM
Abstract: A convolution method for high speed deep learning according to the present invention includes (a) a step in which a feature map receiving unit of the convolution system receives a feature map configured by N channels; (b) a step in which a main controller of the convolution system selects a “0”-th channel from the feature map configured by N channels; (c) a step in which the main controller confirms a coordinate in which x, y coordinate is “0”, from the feature map of the “0”-th channel; (d) a coarse step in which a convolution calculating unit of the convolution system performs a convolution operation and a rectified linear unit (ReLU) operation while shifting by 2 in a horizontal direction and a vertical direction in the feature map; (e) a step in which the channel switching unit of the convolution system switches the channel to a subsequent channel when the coarse step is completed for the feature map of the “0”-th channel; (g) a step in which the main controller determines whether the switched channel is greater or less than N; and (g) a step in which if the channel switched in step (0 is greater than N, the main controller determines that the convolution operation for all channels has been completed and outputs the feature map by means of a feature map output unit. By doing this, the convolution operation which occupies most of the convolution neural network is reduced to increase inference speed in the deep learning.
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15.发明申请公开(公告)号：US20210288664A1
公开(公告)日：2021-09-16
申请号：US17178356
申请日：2021-02-18
Inventor： Myung Hoon SUNWOO , Seung Yong KIM
Abstract: A method for decoding a signal encoded with polar codes by a decoding system is provided. The method comprises receiving, from a transmission system, a signal in which a plurality of cyclic redundancy checks (CRCs) are encoded by the polar codes, the plurality of CRCs being inserted into positions determined based on a plurality of information bits, a number of the plurality of information bits and a total code length, and decoding a code section including bits ranging from a first bit of the signal to a position where a last bit of a first CRC is inserted. The method further comprises re-performing successive cancellation flip decoding for the decoded code section, or determining whether to decode a next code section adjacent to the decoded code section, based on whether a CRC is detected in the decoded code section.
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公开(公告)号：US20200266840A1
公开(公告)日：2020-08-20
申请号：US16528967
申请日：2019-08-01
Inventor： Myung Hoon SUNWOO , Seo Rin JUNG
Abstract: The present disclosure a method of decoding a polar code based on a shared node, the method includes extracting an input node from target data that are data to be decoded, by an extractor, sorting the input node as one of a first node of which the pattern of the frozen bit satisfies a predetermined first reference, a second node of which the pattern of the information bit satisfies a predetermined second reference, and a third node that is not the first node and the second node, by a sorter, calculating at least one codeword candidate and at least one path metric that correspond to the input node in accordance with the sorting result by a calculator, finishing decoding the target data by iterating the extracting, the sorting as one, and the calculating of at least one path metric by a controller.
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17.发明申请公开(公告)号：US20180177434A1
公开(公告)日：2018-06-28
申请号：US15855504
申请日：2017-12-27
Inventor： Jin Hong KIM , Myung Hoon SUNWOO , Jung Won LEE
IPC: A61B5/103 , G06T7/00 , G06T7/90 , A61B5/145 , A61B5/1455
CPC classification number: A61B5/1034 , A61B5/0077 , A61B5/14546 , A61B5/1455 , A61B5/6898 , A61B5/7264 , A61B2576/00 , G06T7/0012 , G06T7/90 , G06T2207/10024 , G06T2207/30041
Abstract: Disclosed are image based jaundice analyzing method and apparatus. The image based jaundice analyzing method according to an exemplary embodiment of the present disclosure includes: receiving an image for jaundice diagnosis obtained by photographing a specific body part of a user and a reference object in a location where the user is currently located; generating color distortion information representing a degree of color distortion of the reference object included in the image for jaundice diagnosis; generating a correction image for jaundice diagnosis by correcting the color distortion of the image for jaundice diagnosis based on the color distortion information; and diagnosing a jaundice symptom of the user using the correction image for jaundice diagnosis.
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18.发明申请HEVC ENCODING DEVICE AND METHOD FOR DETERMINING INTRA-PREDICTION MODE USING THE SAME 审中-公开HEVC编码装置及使用该方法确定预测模式的方法公开(公告)号：US20160309145A1
公开(公告)日：2016-10-20
申请号：US15130403
申请日：2016-04-15
Inventor： Myung Hoon SUNWOO , Tae Sun KIM
IPC: H04N19/11 , H04N19/147 , H04N19/593
CPC classification number: H04N19/11 , H04N19/147 , H04N19/593
Abstract: Disclosed is a high efficiency video coding (HEVC) encoding device including a candidate group updater configured to select a plurality of representative modes as a candidate group from among intra-prediction modes and update the candidate group using a plurality of minimum modes selected from the candidate group, the plurality of representative modes each representing a range where there is an optimal mode, and an optimal mode selector configured to select any one mode as an optimal mode from among a plurality of minimum modes selected from the updated candidate group.
Abstract translation: 公开了一种高效率视频编码（HEVC）编码装置，其包括：候选群组更新器，其被配置为从帧内预测模式中选择多个代表模式作为候选群，并且使用从候选者中选择的多个最小模式来更新候选群组 组，表示其中存在最佳模式的范围的多个代表模式，以及最优模式选择器，被配置为从从更新的候选组中选择的多个最小模式中选择任何一种模式作为最佳模式。
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