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.
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201680067705.2 (2016.11.18)
- Publication No.
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108353168 (2018.07.31)
- Registration No.
- ZL201680067705.2 (2023.04.21)
- Country
- CHINA
- Project Code
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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
-