Title :
Geometrical Attack Robust Spatial Digital Watermarking Based on Improved SIFT
Author :
Sun, JinGuang ; Lan, Shishuang
Author_Institution :
Sch. of Electron. & Inf. Eng., Liaoning Tech. Univ., Huludao, China
Abstract :
Presents an effective against geometric attack robustness of digital watermarking algorithm based on improved SIFT(Scale Invariant Feature Transform). The proposal achieves watermark synchronization using improved Scale-Invariant Feature Transform; Some suitable feature points are selected to form circular patches of the carrier image. The circular patches are divided into sectors, and watermark is embedded into the sectors using spatial odds and even quantification. Watermark is extracted from an odd-even detector before detecting the rotated angle and the scale. Simulation results show that improved SIFT can reduce the matching dimension of feature point, improve the matching rate. And the proposed scheme achieves good image quality and it is able to resume a greater degree of geometric distortion.
Keywords :
image coding; image matching; watermarking; geometrical attack robustness; image matching; image quality; improved SIFT; odd-even detector; scale invariant feature transform; spatial digital watermarking; Data mining; Detectors; Feature extraction; Information technology; Oceans; Quantization; Robustness; Signal processing algorithms; Underwater communication; Watermarking; geometric attack; improved SIFT; odd-even quantization; reduce dimensionality; watermarking;
Conference_Titel :
Innovative Computing & Communication, 2010 Intl Conf on and Information Technology & Ocean Engineering, 2010 Asia-Pacific Conf on (CICC-ITOE)
Conference_Location :
Macao
Print_ISBN :
978-1-4244-5634-5
Electronic_ISBN :
978-1-4244-5635-2
DOI :
10.1109/CICC-ITOE.2010.33