Patents Assigned to Industry-Academia Cooperation Group of Sejong University
-
Patent number: 11955601Abstract: A sulfide solid electrolyte for all-solid secondary batteries, a method of preparing the same, and an all-solid secondary battery, the sulfide solid electrolyte including lithium, phosphorus, sulfur, and a halogen, wherein: the sulfide solid electrolyte has an argyrodite-type crystal structure, a ratio (I(29.0)/I(30.0) ratio) of a peak intensity at a 2? of 29±0.1° to a peak intensity at a 2? of 30±0.1° is 0.06 or less, the peak intensities being obtained by X-ray diffraction analysis of the sulfide solid electrolyte, and a ratio (I(27.1)/I(30.0) ratio) of a peak intensity at a 2? of 27.1±0.1° to a peak intensity at a 2? of 30±0.1° is 0.06 or less, the peak intensities being obtained by X-ray diffraction analysis of the sulfide solid electrolyte.Type: GrantFiled: August 26, 2021Date of Patent: April 9, 2024Assignees: SAMSUNG SDI CO., LTD., INDUSTRY-ACADEMIA COOPERATION GROUP OF SEJONG UNIVERSITYInventors: Dongrak Sohn, Minsang Song, Jungmin Han, Younggyoon Ryu, Kyulin Lee, Jeongdoo Yi, Sangil Han, Keesun Sohn, Sunggeun Shim, Jinhee Lee
-
Patent number: 11943447Abstract: Disclosed herein are a decoding method and apparatus and an encoding method and apparatus that perform inter-prediction using a motion vector predictor. For a candidate block in a col picture, a scaled motion vector is generated based on a motion vector of the candidate block. When the scaled motion vector indicates a target block, a motion vector predictor of the target block is generated based on the motion vector of the candidate block. The motion vector predictor is used to derive the motion vector of the target block in a specific inter-prediction mode such as a merge mode and an AMVP mode.Type: GrantFiled: July 13, 2022Date of Patent: March 26, 2024Assignees: ELECTRONICS AND TELECOMMUNICATIONS RESEARCH INSTITUTE, INDUSTRY-ACADEMIA COOPERATION GROUP OF SEJONG UNIVERSITY, INDUSTRY-UNIVERSITY COOPERATION FOUNDATION KOREA AEROSPACE UNIVERSITYInventors: Sung-Chang Lim, Jung-Won Kang, Hyunsuk Ko, Jin-Ho Lee, Ha-Hyun Lee, Dong-San Jun, Hui-Yong Kim, Yung-Lyul Lee, Nam-Uk Kim, Jae-Gon Kim
-
Patent number: 11915336Abstract: The present disclosure provides a method of embedding a watermark on a Joint Photographic Experts Group (JPEG) image. The method includes: performing an entropy decoding on the JPEG image to generate quantized discrete cosine transform (DCT) coefficients; determining target bits in a bit plane of the quantized DCT coefficients on the basis of a watermark-embedding table (WET); and embedding a watermark based on metadata of the JPEG image in the target bits. Also, the present disclosure provides a method of verifying integrity of the image by using the embedded watermark.Type: GrantFiled: May 17, 2019Date of Patent: February 27, 2024Assignee: INDUSTRY-ACADEMIA COOPERATION GROUP OF SEJONG UNIVERSITYInventor: Oh Jin Kwon
-
Patent number: 11867803Abstract: The present disclosure relates to a global positioning system for compensating for relative positioning errors between vehicles. A follower vehicle of the global positioning system includes a correction message receiver configured to receive correction message including velocity information about a leader vehicle and GNSS raw measurements of the leader vehicle from the leader vehicle, a relative positioning result calculator configured to calculate a relative positioning result between the leader vehicle and the follower vehicle based on the GNSS measurements of the leader vehicle, and a relative positioning result corrector configured to calculate a corrected relative positioning result through an operation based on the calculated relative positioning result and the velocity information about the leader vehicle.Type: GrantFiled: November 22, 2021Date of Patent: January 9, 2024Assignee: INDUSTRY-ACADEMIA COOPERATION GROUP OF SEJONG UNIVERSITYInventors: Byung Woon Park, Eun Yeong Lee, Cheol Soon Lim, Hyo Jung Yoon
-
Publication number: 20240004024Abstract: An electronic device includes a first sensor including an anchor and a tag, and a second sensor including an inertial sensor and a geo-magnetic sensor, and a processor configured to estimate a first relative position of an external electronic device based on a time of arrival at which a signal from the anchor arrives at the external device, estimate a first relative pose of the external electronic device, based on measurements of the inertial sensor and the geo-magnetic sensor, convert an acceleration of the electronic device in a sensor frame into an acceleration in a navigation frame, based on the relative pose of the external electronic device, calculate a relative acceleration of the external device, based on the converted acceleration, and estimate a relative position and a relative pose of the external electronic device by applying the calculated relative position and the first relative position of the external electronic device to an Extended Kalman Filter.Type: ApplicationFiled: June 29, 2023Publication date: January 4, 2024Applicants: SAMSUNG ELECTRONICS CO., LTD, INDUSTRY-ACADEMIA COOPERATION GROUP OF SEJONG UNIVERSITYInventors: Heesae Lee, Hyungseok Kim, Soyoung Park, A S M Sharifuzzaman Sagar, Hanjun Kim, Hanwook Bae, Hyuncheol Jeon, Seokpyo Hong
-
Publication number: 20230267589Abstract: Disclosed is a method and apparatus for multi-frame prediction error-based video anomaly detection. The disclosed apparatus for multi-frame prediction error-based video anomaly detection includes a multi-frame predictor configured to predict a current frame and adjacent frames using a prediction model; a multi-frame prediction error obtainer configured to obtain a multi-frame prediction error by obtaining a prediction error of the current frame and prediction errors of the adjacent frames that each prediction error is a difference between a predicted frame and a real frame and by adding the prediction error of the current frame and the prediction errors of the adjacent frames; and an anomaly score evaluator configured to evaluate an anomaly score based on the obtained multi-frame prediction error of the current frame.Type: ApplicationFiled: December 22, 2022Publication date: August 24, 2023Applicant: Industry-Academia Cooperation Group Of Sejong UniversityInventors: Young-Gab KIM, Yujun KIM
-
Publication number: 20230032574Abstract: Disclosed herein are a video decoding method and apparatus and a video encoding method and apparatus, and more particularly, a method and apparatus for performing filtering in video encoding and decoding. An encoding apparatus may perform filtering on a target, and may generate filtering information indicating whether filtering has been performed on the target. Further, the encoding apparatus may generate a bitstream including filtering information. A decoding apparatus may determine, based on filtering information, whether to perform filtering on a target, and may perform filtering on the target. The decoding apparatus may receive filtering information from the encoding apparatus through a bitstream or may derive filtering information using additional information.Type: ApplicationFiled: October 13, 2022Publication date: February 2, 2023Applicants: ELECTRONICS AND TELECOMMUNICATIONS RESEARCH INSTITUTE, INDUSTRY-ACADEMIA COOPERATION GROUP OF SEJONG UNIVERSITYInventors: Sung-Chang LIM, Jung-Won KANG, Hyunsuk KO, Jin-Ho LEE, Ha-Hyun LEE, Dong-San JUN, Seung-Hyun CHO, Hui-Yong KIM, Yung-Lyul LEE, Jun-Woo CHOI, Jin-Soo CHOI, Nam-Uk KIM, Myung-Jun KIM
-
Patent number: 11525171Abstract: A vehicle interior material made of a rose-gold-colored copper alloy may include 0.07 to 0.21 wt % of aluminum (Al), 0.06 to 0.19 wt % of magnesium (Mg), 0.17 to 0.52 wt % of zinc (Zn), and a balance of copper (Cu) and unavoidable impurities, wherein the sum of the aluminum (Al), the magnesium (Mg), and the zinc (Zn) is 0.5 to 1.5 at %.Type: GrantFiled: November 12, 2019Date of Patent: December 13, 2022Assignees: Hyundai Motor Company, Kia Motors Corporation, Industry-Academia Cooperation Group of Sejong UniversityInventors: Hoo-Dam Lee, Chang-Yeol Yoo, Jong-Kook Lee, Sung-Ho Yoon, Ye-Lim Kim, Yeon-Beom Jeong, Ki-Buem Kim
-
Patent number: 11528491Abstract: Disclosed is image encoding/decoding method using color coordinate axis conversion, comprising the steps of: acquiring pixel distribution information, on first color coordinate system, about an image; determining, on the basis of the pixel distribution information, first component having the widest variance from among the components of the first color coordinate system; acquiring an intermediate color coordinate system by rotating, around a starting point, a coordinate axes of the first color coordinate system so that variance of the first component is maximized; determining a second component having the widest variance from among components excluding the first component in the intermediate color coordinate system; acquiring a second color coordinate system by rotating, around the starting point, a coordinate axis of the intermediate color coordinate system so that variance of the second color component is maximized; and encoding the image on the basis of pixel distribution information on the second color cooType: GrantFiled: October 23, 2019Date of Patent: December 13, 2022Assignee: INDUSTRY-ACADEMIA COOPERATION GROUP OF SEJONG UNIVERSITYInventor: Oh Jin Kwon
-
Patent number: 11503286Abstract: Disclosed herein are a video decoding method and apparatus and a video encoding method and apparatus, and more particularly, a method and apparatus for performing filtering in video encoding and decoding. An encoding apparatus may perform filtering on a target, and may generate filtering information indicating whether filtering has been performed on the target. Further, the encoding apparatus may generate a bitstream including filtering information. A decoding apparatus may determine, based on filtering information, whether to perform filtering on a target, and may perform filtering on the target. The decoding apparatus may receive filtering information from the encoding apparatus through a bitstream or may derive filtering information using additional information.Type: GrantFiled: November 28, 2017Date of Patent: November 15, 2022Assignees: Electronics and Telecommunications Research Institute, INDUSTRY-ACADEMIA COOPERATION GROUP OF SEJONG UNIVERSITYInventors: Sung-Chang Lim, Jung-Won Kang, Hyunsuk Ko, Jin-Ho Lee, Ha-Hyun Lee, Dong-San Jun, Seung-Hyun Cho, Hui-Yong Kim, Yung-Lyul Lee, Jun-Woo Choi, Jin-Soo Choi, Nam-Uk Kim, Myung-Jun Kim
-
Publication number: 20220353509Abstract: Disclosed herein are a decoding method and apparatus and an encoding method and apparatus that perform inter-prediction using a motion vector predictor. For a candidate block in a col picture, a scaled motion vector is generated based on a motion vector of the candidate block. When the scaled motion vector indicates a target block, a motion vector predictor of the target block is generated based on the motion vector of the candidate block. The motion vector predictor is used to derive the motion vector of the target block in a specific inter-prediction mode such as a merge mode and an AMVP mode.Type: ApplicationFiled: July 13, 2022Publication date: November 3, 2022Applicants: Electronics and Telecommunications Research Institute, INDUSTRY-ACADEMIA COOPERATION GROUP OF SEJONG UNIVERSITY, INDUSTRY-UNIVERSITY COOPERATION FOUNDATION KOREA AEROSPACE UNIVERSITYInventors: Sung-Chang LIM, Jung-Won KANG, Hyunsuk KO, Jin-Ho LEE, Ha-Hyun LEE, Dong-San JUN, Hui-Yong KIM, Yung-Lyul LEE, Nam-Uk KIM, Jae-Gon KIM
-
Publication number: 20220321890Abstract: Disclosed herein are a method, an apparatus, and a storage medium for image encoding/decoding using geometric partitioning. A target block may be geometrically partitioned, and multiple partitioned regions may be generated from geometric partitioning. Each partitioned region may have a non-square and a non-rectangular shape. Different prediction schemes may be applied to different partitioned regions. The different prediction schemes for multiple partitioned regions may be signaled as explicit information, and may be derived using information about a coding parameter for the target block or the like.Type: ApplicationFiled: July 23, 2020Publication date: October 6, 2022Applicants: Electronics and Telecommunications Research Institute, INDUSTRY-ACADEMIA COOPERATION GROUP OF SEJONG UNIVERSITYInventors: Woong LIM, Jin-Young LEE, Gun BANG, Hui-Yong KIM
-
Publication number: 20220312009Abstract: Disclosed herein are a method and apparatus for image encoding and image decoding using region segmentation. A picture is divided into multiple sub-pictures, and encoding and/or decoding are performed on the multiple sub-pictures resulting from division. Encoding operations and/or decoding operations on the sub-pictures may be independently performed. Merging and filtering are applied to reconstructed sub-pictures generated by decoding, and a reconstructed picture is generated after processing of merging and filtering.Type: ApplicationFiled: June 22, 2020Publication date: September 29, 2022Applicants: Electronics and Telecommunications Research Institute, INDUSTRY-ACADEMIA COOPERATION GROUP OF SEJONG UNIVERSITYInventors: Gun BANG, Jin-Young LEE, Woong LIM, Hui-Yong KIM
-
Patent number: 11425390Abstract: Disclosed herein are a decoding method and apparatus and an encoding method and apparatus that perform inter-prediction using a motion vector predictor. For a candidate block in a col picture, a scaled motion vector is generated based on a motion vector of the candidate block. When the scaled motion vector indicates a target block, a motion vector predictor of the target block is generated based on the motion vector of the candidate block. The motion vector predictor is used to derive the motion vector of the target block in a specific inter-prediction mode such as a merge mode and an AMVP mode.Type: GrantFiled: January 25, 2019Date of Patent: August 23, 2022Assignees: Electronics and Telecommunications Research Institute, INDUSTRY-ACADEMIA COOPERATION GROUP OF SEJONG UNIVERSITY, INDUSTRY-UNIVERSITY COOPERATION FOUNDATION KOREA AEROSPACE UNIVERSITYInventors: Sung-Chang Lim, Jung-Won Kang, Hyunsuk Ko, Jin-Ho Lee, Ha-Hyun Lee, Dong-San Jun, Hui-Yong Kim, Yung-Lyul Lee, Nam-Uk Kim, Jae-Gon Kim
-
Patent number: 11363260Abstract: Disclosed herein are a decoding method and apparatus and an encoding method and apparatus for deriving an intra-prediction mode. An intra-prediction mode may be derived using a method for deriving an intra-prediction mode based on a neighbor block of the target block, a method for deriving an intra-prediction mode using signaling of the intra-prediction mode of the target block, or a method for deriving an adaptive intra-prediction mode based on the type of a target slice. An MPM list may be used to derive the intra-prediction mode, and a temporal neighbor block or the like may be used to configure the MPM list.Type: GrantFiled: August 3, 2020Date of Patent: June 14, 2022Assignees: Electronics and Telecommunications Research Institute, Industry-University Cooperation Foundation Korea Aerospace University, Industry-Academia Cooperation Group of Sejong UniversityInventors: Jin-Ho Lee, Jae-Gon Kim, Jung-Won Kang, Do-Hyeon Park, Yung-Lyul Lee, Ha-Hyun Lee, Sung-Chang Lim, Hui-Yong Kim, Ji-Hoon Do, Yong-Uk Yoon
-
Publication number: 20220171053Abstract: The present disclosure relates to a global positioning system for compensating for relative positioning errors between vehicles. A follower vehicle of the global positioning system includes a correction message receiver configured to receive correction message including velocity information about a leader vehicle and GNSS raw measurements of the leader vehicle from the leader vehicle, a relative positioning result calculator configured to calculate a relative positioning result between the leader vehicle and the follower vehicle based on the GNSS measurements of the leader vehicle, and a relative positioning result corrector configured to calculate a corrected relative positioning result through an operation based on the calculated relative positioning result and the velocity information about the leader vehicle.Type: ApplicationFiled: November 22, 2021Publication date: June 2, 2022Applicant: INDUSTRY-ACADEMIA COOPERATION GROUP OF SEJONG UNIVERSITYInventors: Byung Woon PARK, Eun Yeong LEE, Cheol Soon LIM, Hyo Jung YOON
-
Patent number: 11330274Abstract: The present invention discloses an encoding apparatus using a Discrete Cosine Transform (DCT) scanning, which includes a mode selection means for selecting an optimal mode for intra prediction; an intra prediction means for performing intra prediction onto video inputted based on the mode selected in the mode selection means; a DCT and quantization means for performing DCT and quantization onto residual coefficients of a block outputted from the intra prediction means; and an entropy encoding means for performing entropy encoding onto DCT coefficients acquired from the DCT and quantization by using a scanning mode decided based on pixel similarity of the residual coefficients.Type: GrantFiled: June 12, 2019Date of Patent: May 10, 2022Assignees: Electronics and Telecommunications Research Institute, Kwangwoon University Research Institute for Industry Cooperation, Industry-Academia Cooperation Group of Sejong UniversityInventors: Se-Yoon Jeong, Hae-Chul Choi, Jeong-Il Seo, Seung-Kwon Beack, In-Seon Jang, Jae-Gon Kim, Kyung-Ae Moon, Dae-Young Jang, Jin-Woo Hong, Jin-Woong Kim, Yung-Lyul Lee, Dong-Gyu Sim, Seoung-Jun Oh, Chang-Beom Ahn, Dae-Yeon Kim, Dong-Kyun Kim
-
Patent number: 11240312Abstract: Provided are an apparatus and method of interworking IoT servers associated with heterogeneous platforms. The method of providing IoT resource information in an IoT server operating based on a first IoT platform includes: receiving device information of a first IoT device to register in a resource table; transmitting resource information of the first IoT device including a resource path of the first IoT device to an external IoT server through an interworking brokerage server; receiving resource information of a second IoT device registered in the external IoT server operating based on a second IoT platform through the interworking brokerage server; and translating an original resource path included in the resource information of the second IoT device into a format according to the first IoT platform to store the resource information of the second IoT device including the original resource path and a translated resource path in the resource table.Type: GrantFiled: April 15, 2021Date of Patent: February 1, 2022Assignee: INDUSTRY-ACADEMIA COOPERATION GROUP OF SEJONG UNIVERSITYInventors: Young Gab Kim, Ja Hoon Koo, Se Ra Oh
-
Publication number: 20210341878Abstract: An optical scanning holography system includes a polarization-sensitive lens configured to receive a linearly polarized beam and generate a first spherical wave of right-handed circular polarized light having a negative focal length and a second spherical wave of left-handed circular polarized light having a positive focal length, a first polarizer configured to pass only a beam component therethrough in a predetermined polarization direction among components of the generated first and second spherical waves, a scanning unit configured to scan an object by using an interference beam generated between the first and second spherical waves passing through the first polarizer, and a first photodetector configured to detect a beam reflected from the object.Type: ApplicationFiled: August 23, 2019Publication date: November 4, 2021Applicant: INDUSTRY-ACADEMIA COOPERATION GROUP OF SEJONG UNIVERSITYInventor: Tae Geun KIM
-
Patent number: 11155699Abstract: Provided are nanocellulose composite and preparation method thereof. The method comprises preparing cellulose nanofiber, mixing the cellulose nanofiber with a silica precursor in a solvent to attach silica particles to the surface of the cellulose nanofiber, or to form a silica coating layer on the surface of the cellulose nanofiber, and mixing the cellulose nanofiber with the silica particles or the silica coating layer with a polymer. According to the present invention, by using surface vitrification-treated nano cellulose, nanocellulose polymer composites that exhibits high mechanical properties such as impact resistance as well as excellent heat resistance can be prepared.Type: GrantFiled: April 12, 2018Date of Patent: October 26, 2021Assignee: INDUSTRY-ACADEMIA COOPERATION GROUP OF SEJONG UNIVERSITYInventors: Young Soo Seo, Sang Yul Park, Hyo Sun Kim, Song Hee Lee