A hierarchical image authentication watermark with improved localization and security. - Mehmet Utku Celik; Gaurav Sharma 001; Eli Saber; A. Murat Tekalp (ICIP (2), 2001)

Analysis of feature-based geometry-invariant watermarking. - Mehmet Utku Celik; Eli Saber; Gaurav Sharma 001; A. Murat Tekalp (Security and Watermarking of Multimedia Contents, 2001)

Reversible data hiding. - Mehmet Utku Celik; Gaurav Sharma 001; Eli Saber; A. Murat Tekalp (ICIP (2), 2002)

Video authentication with self-recovery. - Mehmet Utku Celik; Gaurav Sharma 001; A. Murat Tekalp; Eli Saber (Security and Watermarking of Multimedia Contents, 2002)

Hierarchical watermarking for secure image authentication with localization. - Mehmet Utku Celik; Gaurav Sharma 001; Eli Saber; A. Murat Tekalp (IEEE Trans. Image Process., 2002)

Watermarking low bit-rate Advanced Simple Profile MPEG-4 bitstreams. - Adnan M. Alattar; Eugene T. Lin; Mehmet Utku Celik (ICASSP (3), 2003)

Level-embedded lossless image compression. - Mehmet Utku Celik; A. Murat Tekalp; Gaurav Sharma 001 (ICASSP (3), 2003)

Collusion-resilient fingerprinting using random prewarping. - Mehmet Utku Celik; Gaurav Sharma 001; A. Murat Tekalp (ICIP (1), 2003)

Level-Successive Encoding for Digital Photography. - Mehmet Utku Celik; Gaurav Sharma 001; A. Murat Tekalp (PICS, 2003)

Evaluation of watermarking low-bit-rate MPEG-4 bit streams. - Adnan M. Alattar; Mehmet Utku Celik; Eugene T. Lin (Security and Watermarking of Multimedia Contents, 2003)

Localized lossless authentication watermark (LAW). - Mehmet Utku Celik; Gaurav Sharma 001; A. Murat Tekalp; Eli Saber (Security and Watermarking of Multimedia Contents, 2003)

Gray-level-embedded lossless image compression. - Mehmet Utku Celik; Gaurav Sharma 001; A. Murat Tekalp (Signal Process. Image Commun., 2003)

Digital watermarking of low bit-rate advanced simple profile MPEG-4 compressed video. - Adnan M. Alattar; Eugene T. Lin; Mehmet Utku Celik (IEEE Trans. Circuits Syst. Video Technol., 2003)

Mathematical Discontinuities in CIEDE2000 Color Difference Computations. - Gaurav Sharma 001; Wencheng Wu; Edul N. Dalal; Mehmet Utku Celik (CIC, 2004)

Universal image steganalysis using rate-distortion curves. - Mehmet Utku Celik; Gaurav Sharma 001; A. Murat Tekalp (Security, Steganography, and Watermarking of Multimedia Contents, 2004)

Collusion-resilient fingerprinting by random pre-warping. - Mehmet Utku Celik; Gaurav Sharma 001; A. Murat Tekalp (IEEE Signal Process. Lett., 2004)

Morphological Steganalysis of Audio Signals and the Principle of Diminishing Marginal Distortions. - Oktay Altun; Gaurav Sharma 001; Mehmet Utku Celik; Mark Sterling; Edward L. Titlebaum; Mark Bocko (ICASSP (2), 2005)

Pitch and Duration Modification for Speech Watermarking. - Mehmet Utku Celik; Gaurav Sharma 001; A. Murat Tekalp (ICASSP (2), 2005)

Semifragile hierarchical watermarking in a set theoretic framework. - Oktay Altun; Gaurav Sharma 001; Mehmet Utku Celik; Mark F. Bocko (ICIP (1), 2005)

Lossless generalized-LSB data embedding. - Mehmet Utku Celik; Gaurav Sharma 001; A. Murat Tekalp; Eli Saber (IEEE Trans. Image Process., 2005)

Secure Watermark Embedding Through Partial Encryption. - Aweke N. Lemma; Stefan Katzenbeisser 001; Mehmet Utku Celik; Michiel van der Veen (IWDW, 2006)

New modulation-based watermarking technique for video. - Aweke N. Lemma; Michiel van der Veen; Mehmet Utku Celik (Security, Steganography, and Watermarking of Multimedia Contents, 2006)

A Set Theoretic Framework for Watermarking and Its Application to Semifragile Tamper Detection. - Oktay Altun; Gaurav Sharma 001; Mehmet Utku Celik; Mark F. Bocko (IEEE Trans. Inf. Forensics Secur., 2006)

Lossless watermarking for image authentication: a new framework and an implementation. - Mehmet Utku Celik; Gaurav Sharma 001; A. Murat Tekalp (IEEE Trans. Image Process., 2006)

Forensic Watermarking in Digital Rights Management. - Michiel van der Veen; Aweke N. Lemma; Mehmet Utku Celik; Stefan Katzenbeisser 001 (Security, Privacy, and Trust in Modern Data Management, 2007)

Privacy preserving error resilient dna searching through oblivious automata. - Juan Ramón Troncoso-Pastoriza; Stefan Katzenbeisser 001; Mehmet Utku Celik (CCS, 2007)

Secure Embedding of Spread Spectrum Watermarks using Look-up-Tables. - Mehmet Utku Celik; Aweke N. Lemma; Stefan Katzenbeisser 001; Michiel van der Veen (ICASSP (2), 2007)

Camcorder Capture Robust Low-Complexity Watermarking of MPEG-2 Bit-Streams. - Mehmet Utku Celik; Joop Talstra; Aweke N. Lemma; Stefan Katzenbeisser 001 (ICIP (5), 2007)

Forensic Watermarking During AAC Playback. - Serap Kirbiz; Mehmet Utku Celik; Aweke N. Lemma; Stefan Katzenbeisser 001 (ICME, 2007)

Combining Tardos Fingerprinting Codes and Fingercasting. - Stefan Katzenbeisser 001; Boris Skoric; Mehmet Utku Celik; Ahmad-Reza Sadeghi (Information Hiding, 2007)

A secure multidimensional point inclusion protocol. - Juan Ramón Troncoso-Pastoriza; Stefan Katzenbeisser 001; Mehmet Utku Celik; Aweke N. Lemma (MM&Sec, 2007)

Decode-Time Forensic Watermarking of AAC Bitstreams. - Serap Kirbiz; Aweke N. Lemma; Mehmet Utku Celik; Stefan Katzenbeisser 001 (IEEE Trans. Inf. Forensics Secur., 2007)

Forensic watermarking and bit-rate conversion of partially encrypted AAC bitstreams. - Aweke N. Lemma; Stefan Katzenbeisser 001; Mehmet Utku Celik; Serap Kirbiz (Security, Forensics, Steganography, and Watermarking of Multimedia Contents, 2008)

Symmetric Tardos fingerprinting codes for arbitrary alphabet sizes. - Boris Skoric; Stefan Katzenbeisser 001; Mehmet Utku Celik (Des. Codes Cryptogr., 2008)

Lookup-Table-Based Secure Client-Side Embedding for Spread-Spectrum Watermarks. - Mehmet Utku Celik; Aweke N. Lemma; Stefan Katzenbeisser 001; Michiel van der Veen (IEEE Trans. Inf. Forensics Secur., 2008)

A Buyer-Seller Watermarking Protocol Based on Secure Embedding. - Stefan Katzenbeisser 001; Aweke N. Lemma; Mehmet Utku Celik; Michiel van der Veen; Martijn Maas (IEEE Trans. Inf. Forensics Secur., 2008)

Tardos Fingerprinting is Better Than We Thought. - Boris Skoric; T. U. Vladimirova; Mehmet Utku Celik; Joop Talstra (IEEE Trans. Inf. Theory, 2008)

Video fingerprinting for live events. - Mehmet Utku Celik; Jaap Haitsma; Pavlo Barvinko; Gerhard C. Langelaar; Martijn Maas (Media Forensics and Security, 2009)

Tardos Fingerprinting Codes in the Combined Digit Model. - Boris Skoric; Stefan Katzenbeisser 001; Hans Georg Schaathun; Mehmet Utku Celik (IEEE Trans. Inf. Forensics Secur., 2011)