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Detail

Registered METHOD AND DEVICE FOR ENCRYPTING/DECRYPTING IMAGE BY USING GEOMETRICALLY CHANGED IMAGE

Inventors
Kang Jung Won, Hyunsuk Ko, Sung-Chang Lim, Jun Dong-San, Jinho Lee, Kim Hui Yong, 박광훈, Choi Jin Soo, 김태현, 허영수, 이대영
Application No.
201680067705.2 (2016.11.18)
Publication No.
108353168 (2018.07.31)
Registration No.
ZL201680067705.2 (2023.04.21)
Country
CHINA
Project Code
15MR3800, Development of UHD Realistic Broadcasting, Digital Cinema, and Digital Signage Convergence Service Technology, Choi Jin Soo
Abstract
The invention relates to a method and device for video encryption/decryption by using a geometrically changed picture. A method for encrypting an image according to the invention may comprise the steps of: a geometrically changed reference picture generating step of geometrically changing a reference picture and generating a geometrically changed reference picture; a step of generating a prediction block of a current block in a picture to be encrypted by carrying out inter-screen prediction by referring to the reference picture or the geometrically changed reference picture; and encrypting inter-screen prediction information on the current block.
KSP Keywords
Video encryption
Family
 
패밀리 특허 목록
Status Patent Country KIPRIS
Registered METHOD AND DEVICE FOR ENCODING/DECODING IMAGE BY USING GEOMETRICALLY CHANGED IMAGE UNITED STATES
Registered METHOD AND DEVICE FOR ENCODING/DECODING IMAGE BY USING GEOMETRICALLY CHANGED IMAGE UNITED STATES