Publications

PhD Students

Research grants / projects

Professional Activities

Associate Professor in the Laboratory of Systems Modelling and Dependability (LM2S).
Research Interests: Hypothesis testing theory, Steganography, Steganalysis, Statistical image processing, Media forensics, Natural image acquisition and modelisation.

Publications: These articles are provided for non-commercial research and education use.

Patents

• R.Cogranne (33%), F. Retraint (33%) and T.H.Thai (33%), ``System for identifying a photographic camera model associated with a JPEG-compressed image, and associated method performed in such a system, uses and applications''. French Patent PS/B52546/FR déposé auprès de l'INPI en mars 2014. Published under PCT treaty under reference PCT/WO/2015/145092 [pdf (from WIPO)] [pdf preprint]

• R.Cogranne (33%), F. Retraint (33%) and T.H.Thai (33%), ``System for identifying a photographic camera model associated with a jpeg-compressed image, and associated method, uses and applications''. French Patent PS/B52545/FR application filled in March 2014. Published under PCT treaty under reference PCT/WO/2015/145091 [pdf (from WIPO)] [pdf preprint]

• R.Cogranne (50%) and F. Retraint (50%), ``System for Determining the Identification of a Photographic Apparatus on the basis of a Photograph and Method Implemented in such a System''. French papent, publication number : FR 2987923 and PCT patent number : PCT/WO 2013/135977 - European EP-12787770 , published in Septembre 2013. [pdf (from WIPO)] [pdf preprint]

Journal Papers

• [R22] T.H. Thai and R. Cogranne, ``Estimation of Primary Quantization Steps in Double-Compressed JPEG Images Using a Statistical Model of Discrete Cosine Transform.'', IEEE Access, In Press, 2019. [doi] [pdf preprint]

• [R21] T. Nguyen, H.L. Mai, R. Cogranne, G. Doyen, W.Mallouli, L. Nguyen, M. El Aoun, E. Montes-de-oca and O. Festor ``Reliable Detection of Interest Flooding Attack in Real Deployment of Named Data Networking.'', IEEE Transactions on Information Forensics and Security, vol. 14, no. 9, pp. 2470--2485, 2019. [doi] [pdf preprint]

• [R20] T. Nguyen, H.L. Mai, G. Doyen, R. Cogranne, W.Mallouli, E. Montes-de-oca and O. Festor. ``A Security Monitoring Plane for Named Data Networking Deployment'', IEEE Communications Magazine (ComMag) Feature topic on Information-Centric Networking Security, vol. 56, no. 11, pp. 88--94, July 2018, [doi] [pdf preprint]

• [R19] R.Cogranne, G. Doyen, N. Ghadban and B. Hammi ``Detecting Botclouds at Large Scale: a Decentralized and Robust Detection Method for Multi-Tenant Virtualized Environments'', IEEE Transactions on Network Service Management, Special Issue on Advances in Big Data Analytics for Management, vol. 15, no. 1, pp. 68 -- 82, 2018, [doi] [pdf preprint]

• [R18] K.Tout, F.Retraint and R.Cogranne``Non-Stationary Process Monitoring for Change-point Detection with known Accuracy: Application to Wheels Coating Inspection'', IEEE Access, vol. 6, no. 1, pp. 6709 -- 6721, 2018, [doi] [pdf preprint]

• [R17] K. Tout R.Cogranne and F. Retraint ``Statistical Decision Methods in the Presence of Linear Nuisance Parameters and Despite Imaging System Heteroscedastic Noise: Application to Wheel Surface Inspection'', Elsevier Signal Processing, vol. 144, pp. 430 -- 443, March 2018, [doi] [pdf preprint]

• [R16] T.Qiao, F.Retraint, R.Cogranne and T.H.Thai ``Individual Camera Device Identification from JPEG Images'', Signal Processing: Image Communication, Elsevier, vol. 52, no. 3, pp. 74 -- 86, March 2017. [doi] [pdf preprint]

• [R15] T.H.Thai, R.Cogranne, F.Retraint and T.N.C.Doan ``JPEG Quantization Step Estimation and Its Applications to Digital Image Forensics'', IEEE Transactions on Information Forensics and Security, vol. 12, no. 1, pp. 123 -- 133, 2017. [doi] [pdf preprint]

• [R14] V.Sedighi, R.Cogranne and J.Fridrich ``Content-Adaptive Steganography by Minimizing Statistical Detectability'', IEEE Transactions on Information Forensics and Security, vol. 11, no. 2, pp. 221 -- 234, 2016. [doi] [pdf preprint] [bibtex]
  Matlab code used in this publication available in software / download page from this website
  and also from download section of DDE website

• [R13] R.Cogranne and J.Fridrich ``Modeling and Extending the Ensemble Classifier for Steganalysis of Digital Images Using Hypothesis Testing Theory'', IEEE Transactions on Information Forensics and Security, vol. 10, no. 12, pp. 2627 -- 2642, 2015. [doi] [pdf preprint] [bibtex]
  Matlab code used in this publication available in software / download page from this website
  and also (soon) from download section of DDE website

• [R12] T.H.Thai, F.Retraint and R.Cogranne ``Camera Model Identification Based on the Generalized Noise Model in Natural Images'', Elsevier Digital Signal Processing, vol. 48, no. 1, pp. 285 -- 297, January 2016. [doi] [pdf preprint] [bibtex]

• [R11] T.H.Thai, F.Retraint and R.Cogranne ``Generalized Signal-Dependent Noise Model and Parameter Estimation for Natural Images'', Elsevier Signal Processing, vol. 114, pp. 164 -- 170, septembre 2015. [doi] [pdf] [bibtex]

• [R10] T.Qiao, F.Retraint, R.Cogranne and C.Zitzmann ``Steganalysis of JSteg Algorithm Using Hypothesis Testing Theory'', Eurasip Journal on Information Security, vol. 2, no. 1, pp. 1 -- 16, 2015. [doi] [pdf] [pdf open access] [bibtex]

• [R9] T.H.Thai, F.Retraint and R.Cogranne ``Camera Model Identification Based on DCT Coefficient Statistics'', Elsevier Digital Signal Processing, vol. 40, no. 5, pp. 88 -- 100, May 2015. [doi] [pdf] [bibtex]

• [R8] T.H.Thai, R.Cogranne and F.Retraint ``Statistical Model of Quantized DCT Coefficients: Application in the Steganalysis of Jsteg Algorithm'', IEEE Transactions on Image Processing, vol. 23, no. 5, pp. 1980 -- 1993, May 2014. [doi] [pdf] [bibtex]
  Matlab Source code used in this paper are available here

• [R7] R.Cogranne, C.Zitzmann, F.Retraint, I.Nikiforov, P.Cornu and L.Fillatre ``A Local Adaptive Model of Natural Images for Almost Optimal Detection of Hidden Data'', Elsevier Signal Processing, Vol. 100, pp. 169 -- 185, July 2014. [doi] [pdf] [bibtex]

• [R6] T.H.Thai, F.Retraint and R.Cogranne ``Statistical Detection of Data Hidden in Least Significant Bits of Clipped Images'', Elsevier Signal Processing, vol. 98, pp. 263 -- 274, May 2014. [doi] [pdf] [bibtex]

• [R5] T.H.Thai, R.Cogranne and F.Retraint ``Camera Model Identification Based on the Heteroscedastic Noise Model'', IEEE Transactions on Image Processing, vol. 23, no. 1, pp. 250 -- 263, March 2014. [doi] [pdf] [bibtex]

• [R4] R.Cogranne and F.Retraint ``Statistical Detection of Defects in Radiographic Images Using an Adaptive Parametric Model'', Elsevier Signal Processing, vol. 96-B, pp. 173 -- 189, March 2014. [doi] [pdf] [bibtex]

• [R3] R.Cogranne, F.Retraint, C.Zitzmann, I.Nikiforov, L.Fillatre and P.Cornu ``Hidden Information Detection using Decision Theory and Quantized samples: Methodology, Difficulties and Results'', Elsevier Digital Signal Processing, vol 24, pp. 144 -- 161, January 2014. [doi] [pdf] [bibtex]

• [R2] R.Cogranne and F.Retraint ``An Asymptotically Uniformly Most Powerful Test for LSB Matching Detection'', IEEE Transactions on Information Forensics and Security, vol. 8 no. 3, pp. 464 -- 476, 2013. [doi] [pdf] [bibtex]
  Matlab Source code used in this paper are available here

• [R1] R.Cogranne and F.Retraint ``Application of Hypothesis Testing Theory for Optimal Detection of LSB Matching Data Hiding'', Elsevier Signal Processing, vol. 93, no. 7, pp. 1724 -- 1737, 2013.[doi] [pdf] [bibtex]

International Conference Papers

• [C45] R. Cogranne, Q. Giboulot and P. Bas ``The ALASKA Steganalysis Challenge: A First Step Towards Steganalysis "Into The Wild"'', in ACM IH&MEC'19, Information Hiding and Multimedia Security, Paris, France, 3--5 July, 2019 [doi] [pdf preprint]

• [C44] M. Boroumand R. Cogranne and J. Fridrich ``Are we there yet?'', in IS&T Intl' Symposium on Electronic Imaging (Media Watermarking, Security, and Forensics), Burlingame, CA, USA, 13 -- 17 January 2019 [doi soon] [pdf preprint]

• [C43] S. Chehade, N. Matta, J.-B. Pothin and R. Cogranne ``Situation Representation and Awareness for Rescue Operations'', Proc. 16th International Conference on Information Systems for Crisis Response and Management (ISCRAM), Valencia, Spain, May 19-22 2019 [doi soon] [pdf preprint]

• [C42] N. Burger, Y. Langeron, R. Cogranne and P. Lallement ``Security and availability on embedded systems'', Proc. European Safety and Reliability (ESREL), Trondheim, Norway, 17-21 June 2018 [doi] [pdf preprint] [Link to conf. Website]

• [C41] S. Chehade, N. Matta, J.-B. Pothin and R. Cogranne ``Data Interpretation Support in Rescue Operations: Application for French Firefighters'', Proc. 15th ACS/IEEE International Conference on Computer Systems and Applications (AICCSA), Aqaba, Jordan, Oct. 27- Nov. 1 2018 [doi] [pdf preprint]

• [C40] A. Azzam, R. Cogranne, P. Beauseroy, E. Grall-Maës, L. Debelle, N. Belloy, S. Baud, M. Dauchez and S. Almagro, ``An efficient statistical methodology for peptide 3D structure clustering'',in IEEE MECBME, Gammarth - Tunis (Tunisia), March 28-30, 2018. [doi] [pdf preprint]

• [C39] H.L Mai, N.T. Nguyen, G. Doyen, R. Cogranne, W. Mallouli, E. Montes de Oca and O. Festor, ``Towards a Security Monitoring Plane for Named Data Networking: Application to Content Poisoning Attack'', in IEEE/IFIP Network Operations and Management Symposium (NOMS 2018), Taipei, Taiwan, 23-27 April 2018 [doi] [pdf preprint]

• [C38] Q. Giboulot, R.Cogranne and P. Bas ``Steganalysis into the Wild: How to Define a Source'', in IS&T Intl' Symposium on Electronic Imaging (Media Watermarking, Security, and Forensics), San Francisco, CA, USA, 28 January -- 01 February 2018. [doi] [pdf preprint] [pdf from HAL website]

• [C37] K.Tout, F.Retraint and R.Cogranne ``Automatic vision system for wheel surface inspection and monitoring'', in American Society for Nondestructive Testing Annual Conference (ASNT 2017), pp. 207-216, Nashville, TN, USA, 30 October -- 2 November 2017. [Link to conf. Website] [pdf preprint]

[C36] K.Tout, F.Retraint and R.Cogranne ``Wheels Coating Process Monitoring in the Presence of Nuisance Parameters Using Sequential Change-Point Detection Method'', in 25th European Signal Processing Conference (EUSIPCO-2017), pp. 196-200, Island of Kos, Grèce, 29 Aout -- 2 Septembre 2017. [doi] [pdf preprint] [pdf from conf. webstte]

• [C35] N. Ghadban, R.Cogranne and G.Doyen ``A Decentralized Approach for Adaptive Workload Estimation in Virtualized Environments '', in IEEE/IFIP International Symposium on Integrated Network Management (IM 2017), special track on autonomic managment (acceptance rate 23.5%), pp. 1186-1194, Lisbon, Portugal, 8-12 May 2017. [doi] [pdf preprint]

• [C34] R.Cogranne, V.Sedighi and J.Fridrich ``Practical Strategies for Content-Adaptive Batch Steganography and Pooled Steganalysis'', IEEE Intl' Conference on Acoustics, Speech and Signal Processing (ICASSP 2017), pp. 2122-2126, 5-9 March 2017, New Orleans, LA, USA. [doi] [pdf preprint]

• [C33] T.Nguyen, X.Marchal, G.Doyen, T.Cholez and R.Cogranne ``Content Poisoning in Named Data Networking: Comprehensive Characterization of real Deployment'', in IEEE/IFIP International Symposium on Integrated Network Management (IM 2017, acceptance rate 28.6%), pp. 72-80, Lisbon, Portugal, 8-12 May 2017. [doi] [pdf preprint]

• [C32] K Tout R.Cogranne and F.Retraint ``Fully Automatic Detection of Anomalies on Wheels Surface using an Adaptive Accurate Model and Hypothesis Testing Theory'', 24th European Signal Processing Conference (EUSIPCO-2016), pp. 508-512, 29 August - 2 Sept. 2016, Budapest, Hungary. [doi] [pdf preprint]

• [C31] H.L Mai, N.T. Nguyen, G. Doyen, A. Ploix and R.Cogranne ``On the Readiness of NDN for a Secure Deployment: the case of Pending Interest Table'', in Autonomous Infrastructure, Management and Security(AIMS 2016, acceptance rate 31.8%), 20-23 June 2016, Munich, Germany. [doi] [pdf preprint]

• [C30] V. Sedighi, J. Fridrich and R.Cogranne ``Toss that BOSSbase, Alice!'', in IS&T/SPIE Electronic Imaging (Media Watermarking, Security, and Forensics), San Francisco, CA, USA, 14-18 February 2016. [doi soon] [pdf preprint]

• [C29] R.Cogranne, V.Sedighi, J.Fridrich and T.Pevny ``Is Ensemble Classifier Needed for Steganalysis in High-Dimensional Feature Spaces?'', IEEE Intl' Workshop on Information Forensics and Security 2015 (WIFS), 16-19 Nov. 2015, Rome, Italy [doi] [pdf preprint] [bibtex]
  Matlab code used in this publication available in software / download page from this website
  and also from download section of DDE website .

• [C28] R.Cogranne ``A Sequential Method for Online Steganalysis'', IEEE Intl' Workshop on Information Forensics and Security 2015 (WIFS), 16-19 Nov. 2015, Rome, Italy [doi] [pdf preprint] [bibtex]

• [C27] T.Nguyen, R.Cogranne, G.Doyen and F.Retraint ``Detection of Interest Flooding Attacks in Named Data Networking using Hypothesis Testing'', IEEE Intl' Workshop on Information Forensics and Security 2015 (WIFS), 16-19 Nov. 2015, Rome, Italy [doi] [pdf preprint] [bibtex]

• [C26] T.Qiao, F.Retraint, R.Cogranne and T.H.Thai ``Source Camera Device Identification Based on RAW Images'', Proc. IEEE International Conference on Image Processing (ICIP), pp. 3812-3816, 27 - 30 Sept. 2015 [doi] [pdf preprint] [bibtex]

• [C25] T.Nguyen, R.Cogranne and G.Doyen ``An Optimal Statistical Test for a Robust Detection of Interest Flooding Attacks in CCN'', in IEEE/IFIP International Symposium on Integrated Network Management (IM 2015, acceptance rate 27.2%), pp. 252-260, Ottawa, Canada, 11-15 May 2015 [doi] [pdf preprint] [bibtex]

• [C24] V.Sedighi, J.Fridrich and R.Cogranne ``Content-Adaptive Pentary Steganography Using the Multivariate Generalized Gaussian Cover Model'', in IS&T/SPIE Electronic Imaging (Media Watermarking, Security, and Forensics), pp. 94090H, San Francisco, CA, USA, 8-12 February 2015. [doi] [pdf preprint] [bibtex]
  Matlab code used in this publication available in software / download page from this website
  and also from download section of DDE website

• [C23] R.Cogranne, T.Denemark and J.Fridrich ``Theoretical Model of the FLD Ensemble Classifier Based on Hypothesis Testing Theory'', in Proc. of IEEE Intl' Workshop on Information Forensics and Security 2014 (WIFS), pp. 167 - 172, 3 - 5 Dec. 2014. [doi] [pdf preprint] [bibtex]
  Matlab code used in this publication available in software / download page from this website
  and also from download section of DDE website

• [C22] M.Goljan, J.Fridrich and R.Cogranne ``Rich Model for Steganalysis of Color Images'', in Proc. of IEEE Intl' Workshop on Information Forensics and Security 2014 (WIFS, acceptance rate 38.2%), pp. 185 - 190, 3 - 5 Dec. 2014. [doi] [pdf preprint] [bibtex]
  Matlab code used in this publication available from download section of DDE website

• [C21] T.Denemark, V.Sedighi, V.Holub, R.Cogranne, and J.Fridrich ``Selection-Channel-Aware Rich Model for Steganalysis of Digital Images'', in Proc. of IEEE Intl' Workshop on Information Forensics and Security 2014 (WIFS, acceptance rate 38.2%), pp. 48 - 53, 3 - 5 Dec. 2014. [doi] [pdf preprint] [bibtex]
  Matlab code used in this publication available from download section of DDE website

• [C20] T.H.Thai, R.Cogranne and F.Retraint ``Optimal Detection of OutGuess using an Accurate Model of DCT Coefficients'', in Proc. of IEEE Intl' Workshop on Information Forensics and Security 2014 (WIFS, acceptance rate 38.2%), pp. 179 - 184, 3 - 5 Dec. 2014. [doi] [pdf preprint] [bibtex]

• [C19] T.Qiao, C.Zitzmann, F.Retraint and R.Cogranne ``Statistical Detection of Jsteg Steganography Using Hypothesis Testing Theory.'', in Proc. of IEEE International Conference on Image Processing (ICIP), pp. 5517 - 5521, 27 - 30 Oct. 2014. [doi] [pdf preprint] [bibtex]

• [C18] T.H.Thai, R.Cogranne and F.Retraint ``Optimal Detector for Camera Model Identification Based on an Accurate Model of DCT Coeficients'', in Proc. of IEEE International Workshop on Multimedia Signal Processing (MMSP), pp. 1 - 6, 22 - 24 Sept. 2014. [doi] [pdf preprint] [bibtex]

• [C17] T.Qiao, C.Zitzmann, R.Cogranne and F.Retraint ``Detection of JSteg Algorithm Using Hypothesis Testing Theory and a Statistical Model with Nuisance Parameters.'', in Proc. of ACM Information Hiding and Multimedia Security Workshop (IH&MMSec) , pp. 3 - 13, 11- 13 June 2014. [doi] [pdf] [bibtex]

• [C16] R.Cogranne and F.Retraint ``A New Tomography Model for Almost Optimal Detection of Anomalies'', Proc. of IEEE International Conference on Image Processing (ICIP), pp. 1461 - 1465, 15 - 18 Sept. 2013. [doi] [pdf] [pdf from conf. website] [bibtex]

• [C15] T.H.Thai, R.Cogranne and F.Retraint ``Steganalysis of Jsteg Algorithm Based on a Novel Statistical Model of Quantized DCT Coefficients'', Proc. of IEEE International Conference on Image Processing (ICIP), pp. 4427 - 4431, 15 - 18 Sept. 2013. [doi] [pdf from conf. website] [bibtex]

• [C14] R.Cogranne, T.H.Thai and F.Retraint ``Asymptotically Optimal Detection of LSB Matching Data Hiding'', Proc. of IEEE International Conference on Image Processing (ICIP), pp. 4437 - 4441, 15 - 18 Sept. 2013. [doi] [pdf] [pdf from conf. website] [bibtex]

• [C13] T.Qiao, F.Retraint and R.Cogranne ``Image Authentication by Statistical Analysis''. in Proc. of 21th European Signal Processing Conference (EUSIPCO-2013) , pp. 1--5, 9 - 13 Sept. 2013. [lien ieeexplore] [pdf][bibtex]

• [C12] A.Ker, P.Bas, R.Boehme, R.Cogranne, S.Craver, T.Filler, J.Fridrich and T.Pevny ``Moving Steganography and Steganalysis from the Laboratory into the Real World'', Proc. of ACM Information Hiding and Multimedia Security Workshop (IH&MMSec) , pp. 45--58, 17 - 19 June 2013. [doi] [link to pdf] [bibtex]

• [C11] T.H.Thai, F.Retraint, and R.Cogranne ``Statistical model of natural images''. Proc. of IEEE International Conference on Image Processing (ICIP), pp. 2525--2528, 30. Sept. - 3 Oct. 2012. [doi] [pdf] [bibtex]

• [C10] R.Cogranne, C.Zitzmann, F. Retraint, I.Nikiforov, P.Cornu, and L.Fillatre ``Statistical Detection of Information Hiding Based on Adjacent Pixels Difference''. Proc. of 20th European Signal Processing Conference (EUSIPCO-2012) , pp. 1737--1741, 27 - 31 August 2012. [lien ieeexplore] [pdf depuis le site de la conf.] [bibtex]

• [C9] T.H.Thai, R.Cogranne , and F.Retraint ``Camera Model Identification Based on Hypothesis Testing Theory''. Proc. of 20th European Signal Processing Conference (EUSIPCO-2012) , pp. 1747--1751, 27 - 31 August 2012. [lien ieeexplore] [pdf depuis le site de la conf.] [bibtex]

• [C8] R.Cogranne, C.Zitzmann, F. Retraint, I.Nikiforov, L.Fillatre and P.Cornu ``Statistical Detection of LSB Matching in the Presence of Nuisance Parameters''. Proc. of IEEE Workshop on Statistical Signal Processing (SSP), pp. 924--927, 5-8 August 2012. [doi] [pdf] [bibtex]
  Matlab Source code used in this paper are available here

• [C7] R.Cogranne, C.Zitzmann, F.Retraint, I.Nikiforov, L.Fillatre, and P.Cornu ``Statistical detection of LSB matching using hypothesis testing theory''. Proc. of Information Hiding conference (IH), 15-18 May 2012, LNCS vol.7692, pp. 46--62, Springer, Heidelberg, 2012. [doi] [pdf], [slides from conf. website]. [bibtex]
  Matlab Source code used in this paper are available here

• [C6] C.Zitzmann, R.Cogranne, L.Fillatre, I.Nikiforov, F. Retraint and P.Cornu ``Hidden information detection based on quantized Laplacian distribution''. Proc. of IEEE International Conference on Acoustics, Speech, and Signal Processing (ICASSP), pp. 1793--1796, 25-30 March 2012, [doi] [pdf]. [bibtex]

• [C5] R.Cogranne, C.Zitzmann, L.Fillatre, F. Retraint, I.Nikiforov and P.Cornu ``Statistical decision by using quantized observations''. Proc. of IEEE Intl Symposium on Information Theory (ISIT), pp. 1135--1139, 31 July - 5 August 2011. [doi] [pdf] [slides] [bibtex]

• [C4] R.Cogranne, C.Zitzmann, L.Fillatre, I.Nikiforov, F. Retraint and P.Cornu ``Reliable Detection of Hidden Information Based on a Non-Linear Local Model''. Proc. of IEEE Workshop on Statistical Signal Processing (SSP), pp. 493--496, 28-30 June 2011. [doi] [pdf] [bibtex]

• [C3] C.Zitzmann, R.Cogranne, F. Retraint, I.Nikiforov, L.Fillatre and P.Cornu ``Hypothesis Testing by Using Quantized Observations''. Proc. of IEEE Workshop on Statistical Signal Processing (SSP), pp. 501--504, 28-30 June 2011. [doi] [pdf] [bibtex]

• [C2] R.Cogranne, C.Zitzmann, L.Fillatre, I.Nikiforov, F. Retraint and P.Cornu ``A Cover Image Model For Reliable Steganalysis''. Proc. of Information Hiding conference (IH), 18-20 May 2011, LNCS vol.6958, pp. 178--192, Springer, Heidelberg (2011), (Student travel grant award). [doi] [pdf] [slides] [bibtex]

• [C1] C.Zitzmann, R.Cogranne, F. Retraint, I.Nikiforov, L.Fillatre and P.Cornu ``Statistical Decision Methods in Hidden Information Detection.''. Proc. of Information Hiding conference (IH), 18-20 May 2011, LNCS vol.6958, pp. 163--177, Springer, Heidelberg (2011). [doi] [pdf] [slides depuis le site de la conf.] [bibtex]

National Conference Papers

• T.Nguyen, G.Doyen and R.Cogranne ``Detection and mitigation of emerging attacks in virtualized Named Data Networking (NDN) environment'', 2^nd Journées RESSI, 10-13 mai 2016, Toulouse. [pdf]

• R.Cogranne et F. Retraint ``Détection quasi-optimale d'anomalie dans une image tomographique'', XXIV^ième colloque GRETSI, 03-06 septembre 2013, Brest. [pdf]

• R.Slysz, R.Cogranne, L.Moreau et H.Borouchaki ``Une nouvelle méthode de détection de contours basée sur une régression locale de surface'', XXIV^ième colloque GRETSI, 03-06 septembre 2013, Brest. [pdf]

• R.Cogranne, C.Zitzmann, L.Fillatre, F. Retraint, I. Nikiforov et P. Cornu ``Détection Optimale d'information cachées indépendante du contenu des images'', XXIII^ième colloque GRETSI, 05-08 septembre 2011, Bordeaux. [doi soon] [pdf] [slides soon]

• C.Zitzmann, R.Cogranne, F. Retraint, I.Nikiforov, L.Fillatre et P.Cornu ``Détection optimale à base de distribution laplacienne quantifiée'', XXIII^ième colloque GRETSI, 05-08 septembre 2011, Bordeaux. [pdf]

• R.Cogranne, C.Zitzmann, F.Retraint, L.Fillatre et I.Nikiforov ``Applications de la théorie de la décision statistique à l'évaluation de la sécurité de stégosystèmes'', JCS'12, mars 2012, Rennes. [pdf]

• R.Cogranne, L.Fillatre, F. Retraint et C.Zitzmann ``Détection Optimale d'information cachées indépendante du contenu des images'', JCS'11, janvier 2011, Saint-Cyr Coëtquidan. [pdf] [slides from conf. website]

• R.Cogranne, C.Zitzmann, F.Retraint, L.Fillatre et I.Nikiforov ``Applications de la théorie de la décision statistique à l'évaluation de la sécurité de stégosystèmes'', JCS'12, mars 2012, Saint-Cyr Coëtquidan. [pdf]

• R.Cogranne, L.Fillatre, F. Retraint et C.Zitzmann ``Modélisation des images naturelles pour la criminalistique numérique'', workshop 3SGS, Reims, septembre 2010 (Best presentation award). [poster]

Invited Talks

• R.Cogranne, ``Application des tests statistiques d'hypothèses pour la criminalistique des images'', Research workshop of North-Est network (RGE), Troyes, October 4 2012.

• R.Cogranne, ``Modélisation des images numérique pour la recherche de preuves : détection d'information cachées et certification d'intégrité'', Workshop of LIRMM digital security group, Montpellier University 2 - CNRS, May 31th 2012.

• R.Cogranne, ``Criminalistique des images et recherche de preuves'', Intl' Workshop on Cyber-security (French), Montpellier. 4-5 avril 2012.

PhD Thesis

• R.Cogranne ``Statistical detection of information hidden in a natural image using a physical model'', defended in Troyes University of Technology on December 2nd 2011, [ available here ].