Title :
The use of DCT coefficient sign for content-based copy detection
Author :
Arnia, Fitri ; Fujiyoshi, Masaaki ; Kiya, Hitoshi
Author_Institution :
Tokyo Metropolitan Univ., Tokyo
Abstract :
In this paper, we propose to use DCT coefficients signs of DC image as features for content-based copy detection. The features are robust to scaling, JPEG compression, contrast and gamma changing and noise addition. Furthermore, the features are also robust to combined-attacks/alterations such as scaling-noise addition, and scaling-contrast changing.
Keywords :
data compression; discrete cosine transforms; image coding; transform coding; DC image; DCT coefficient; JPEG compression; combined-attacks-alterations; content-based copy detection; gamma changing; noise addition; scaling-contrast changing; scaling-noise addition; Computer vision; Digital images; Discrete cosine transforms; Image coding; Image retrieval; Motion detection; Motion measurement; Noise robustness; Pulse modulation; Transform coding;
Conference_Titel :
Communications and Information Technologies, 2007. ISCIT '07. International Symposium on
Conference_Location :
Sydney,. NSW
Print_ISBN :
978-1-4244-0976-1
Electronic_ISBN :
978-1-4244-0977-8
DOI :
10.1109/ISCIT.2007.4392248
