公开(公告)号：US20190306526A1

公开(公告)日：2019-10-03

申请号：US16374601

申请日：2019-04-03

Applicant: Electronics and Telecommunications Research Institute

Inventor： Seung-Hyun CHO ,  Je-Won KANG ,  Na-Young KIM ,  Jung-Kyung LEE ,  Joo-Young LEE ,  Hyunsuk KO ,  Youn-Hee KIM ,  Jong-Ho KIM ,  Jin-Wuk SEOK ,  Dae-Yeol LEE ,  Woong LIM ,  Se-Yoon JEONG ,  Hui-Yong KIM ,  Jin-Soo CHOI

IPC: H04N19/513 ,  H04N19/105 ,  H04N19/132 ,  G06N20/00

Abstract: Disclosed herein are an inter-prediction method and apparatus using a reference frame generated based on deep learning. In the inter-prediction method and apparatus, a reference frame is selected, and a virtual reference frame is generated based on the selected reference frame. A reference picture list is configured to include the generated virtual reference frame, and inter prediction for a target block is performed based on the virtual reference frame. The virtual reference frame may be generated based on a deep-learning network architecture, and may be generated based on video interpolation and/or video extrapolation that use the selected reference frame.

公开(公告)号：US20190246102A1

公开(公告)日：2019-08-08

申请号：US16270468

申请日：2019-02-07

Applicant: Electronics and Telecommunications Research Institute

Inventor： Seung-Hyun CHO ,  Youn-Hee KIM ,  Jin-Wuk SEOK ,  Joo-Young LEE ,  Woong LIM ,  Jong-Ho KIM ,  Dae-Yeol LEE ,  Se-Yoon JEONG ,  Hui-Yong KIM ,  Jin-Soo CHOI ,  Je-Won KANG ,  Na-Young KIM

IPC: H04N19/109 ,  G06N3/04 ,  H04N19/184 ,  H04N19/172 ,  H04N19/176

CPC classification number: H04N19/109 ,  G06N3/0454 ,  H04N19/172 ,  H04N19/176 ,  H04N19/184

Abstract: Disclosed herein are a video decoding method and apparatus and a video encoding method and apparatus. A virtual frame is generated by a video generation network including a generation encoder and a generation decoder. The virtual frame is used as a reference frame in inter prediction for a target. Further, a video generation network for inter prediction may be selected from among multiple video generation networks, and inter prediction that uses the selected video generation network may be performed.

公开(公告)号：US20170338952A1

公开(公告)日：2017-11-23

申请号：US15350376

申请日：2016-11-14

Applicant: ELECTRONICS AND TELECOMMUNICATIONS RESEARCH INSTITUTE

Inventor： Chang-Ho HONG ,  Na-Young KIM ,  O-Sung KWON ,  Youn-Chang JEONG ,  Haeng-Seok KO ,  Jin-Gak JANG ,  Dae-Sung KWON

IPC: H04L9/08

CPC classification number: H04L9/0858 ,  H04L9/083

Abstract: A device and method for quantum key distribution (QKD). The QKD center includes an authentication key sharing unit for sharing authentication keys with QKD client devices; a quantum key generation unit for generating a sifted key for each of the QKD client devices using a quantum slate; an error correction unit for generating output bit strings by correcting errors of the sifted keys; and a bit string operation unit for calculating an encryption bit string by performing a cryptographic operation on the authentication keys, the distribution output bit strings and output bit strings received from the QKD client devices. The present invention improves security by preventing the QKD center from being aware of keys shared among users.