Title :
Image Based Source Camera Identification using Demosaicking
Author :
Long, Yangjing ; Huang, Yizhen
Author_Institution :
Dept. of Math., Shanghai Jiao Tong Univ.
Abstract :
We represent the spatially periodic inter-pixel correlation due to color filter array interpolation in a quadratic form. Based on this, a coefficient matrix is obtained for each color channel, whose principal components are extracted and fed to feed-forward back propagation networks for source camera identification. Experiments demonstrate the efficacy, sensitivity and robustness of our method
Keywords :
backpropagation; cameras; correlation methods; feedforward neural nets; image segmentation; interpolation; matrix algebra; object detection; optical filters; principal component analysis; coefficient matrix; color channel; color filter array interpolation; feed-forward back propagation network; image demosaicking; principal components; source camera identification; spatially periodic interpixel correlation; Authentication; Computer science; Data mining; Digital cameras; Feedforward systems; Filters; Hardware; Interpolation; Lattices; Sensor arrays; Back Propagation Networks; Principal Components Analysis; Source Camera Identification;
Conference_Titel :
Multimedia Signal Processing, 2006 IEEE 8th Workshop on
Conference_Location :
Victoria, BC
Print_ISBN :
0-7803-9751-7
Electronic_ISBN :
0-7803-9752-5
DOI :
10.1109/MMSP.2006.285343
