Watermarking using complex wavelets with resistance to geometric distortion. - Patrick Loo; Nick G. Kingsbury (EUSIPCO, 2000)

Digital Watermarking Using Complex Wavelets. - Patrick Loo; Nick G. Kingsbury (ICIP, 2000)

Motion-estimation-based registration of geometrically distorted images for watermark recovery. - Patrick Loo; Nick G. Kingsbury (Security and Watermarking of Multimedia Contents, 2001)