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Tran, Dang Ninh
Publications (4 of 4) Show all publications
Tran, D. N., Zepernick, H.-J. & Chu, T. M. (2019). On LSB Data Hiding in High-Definition Images Using Morphological Operations. In: Proceedings - 2019 19th International Symposium on Communications and Information Technologies, ISCIT 2019: . Paper presented at 19th International Symposium on Communications and Information Technologies, ISCIT, Ho Chi Minh City, 25 September 2019 through 27 September 2019 (pp. 386-391). Institute of Electrical and Electronics Engineers Inc.
Open this publication in new window or tab >>On LSB Data Hiding in High-Definition Images Using Morphological Operations
2019 (English)In: Proceedings - 2019 19th International Symposium on Communications and Information Technologies, ISCIT 2019, Institute of Electrical and Electronics Engineers Inc. , 2019, p. 386-391Conference paper, Published paper (Refereed)
Abstract [en]

The aim of steganography is to conceal the presence of communication by way of hiding secret data in perceptually irrelevant parts of a cover object. In this paper, we propose a method for hiding secret images in edge regions of high-definition (HD) images because the human visual system is less sensitive to intensity changes in these regions. In particular, least significant bit substitution is used to embed a secret image in the edge regions of a HD cover image. The edge regions are obtained using a Canny edge detector followed by morphological operations which are used to control the hiding capacity. A performance assessment of the proposed method reveals the trade-off between capacity, detectability, and perceptibility of the hidden data. © 2019 IEEE.

Place, publisher, year, edition, pages
Institute of Electrical and Electronics Engineers Inc., 2019
Keywords
Economic and social effects, Mathematical morphology, Steganography, Canny edge detectors, Hiding capacity, High definition, Human Visual System, Intensity change, Least-significant-bit substitution, Morphological operations, Performance assessment, Digital television
National Category
Signal Processing Computer Sciences
Identifiers
urn:nbn:se:bth-19049 (URN)10.1109/ISCIT.2019.8905158 (DOI)2-s2.0-85076222836 (Scopus ID)9781728150093 (ISBN)
Conference
19th International Symposium on Communications and Information Technologies, ISCIT, Ho Chi Minh City, 25 September 2019 through 27 September 2019
Available from: 2019-12-27 Created: 2019-12-27 Last updated: 2019-12-27Bibliographically approved
Tran, D. N. & Zepernick, H.-J. (2019). Spherical Light-Weight Data Hiding in 360-Degree Videos with Equirectangular Projection. In: International Conference on Advanced Technologies for Communications: . Paper presented at 12th International Conference on Advanced Technologies for Communications, ATC, Hanoi, 17 October 2019 through 19 October 2019 (pp. 56-62). IEEE Computer Society
Open this publication in new window or tab >>Spherical Light-Weight Data Hiding in 360-Degree Videos with Equirectangular Projection
2019 (English)In: International Conference on Advanced Technologies for Communications, IEEE Computer Society , 2019, p. 56-62Conference paper, Published paper (Refereed)
Abstract [en]

In this paper, we propose a spherical light-weight data hiding technique for 360-degree videos with equirectangular projection between sphere and plane. In particular, computationally efficient least significant bit (LSB) data hiding is applied to the color encoded equirectangular projection of the sphere. As viewers put more attention to the areas around the equator of a 360-degree video compared to the poles, LSB data hiding may be performed in the regions around the poles without causing perceptually significant quality degradation. In addition, the equirectangular projection induces a huge amount of data redundancy in the areas near the poles which increases the capacity available for LSB data hiding. A performance assessment of the proposed spherical light-weight data hiding technique is conducted using the weighted-to-spherically-uniform peak-signal-to-noise ratio (WS-PSNR) and the Craster parabolic projection PSNR (CPP-PSNR). Because both metrics take the non-linear relationship between samples on the sphere and the samples mapped to the plane into account, they are well suited for assessing the performance of the spherical LSB data hiding technique. Numerical results are provided for scenarios in which a 360-degree cover video carries a secret video using different numbers of bit planes. It is shown that video fidelity in terms of WS-PSNR and CPP-PSNR is indeed kept high in the 360-degree stego-video as long as the LSB data hiding is performed in the areas around the poles. © 2019 IEEE.

Place, publisher, year, edition, pages
IEEE Computer Society, 2019
Keywords
360-degree video, CPP-PSNR, equirectangular projection, LSB data hiding, WS-PSNR, Poles, Signal to noise ratio, Spheres, Computationally efficient, Data hiding, Least significant bits, Non-linear relationships, Peak signal to noise ratio, Steganography
National Category
Computer Sciences Communication Systems
Identifiers
urn:nbn:se:bth-19141 (URN)10.1109/ATC.2019.8924565 (DOI)2-s2.0-85077542044 (Scopus ID)9781728123929 (ISBN)
Conference
12th International Conference on Advanced Technologies for Communications, ATC, Hanoi, 17 October 2019 through 19 October 2019
Available from: 2020-01-23 Created: 2020-01-23 Last updated: 2020-01-23Bibliographically approved
Tran, D. N., Zepernick, H.-J. & Chu, T. M. (2018). On Moderately Significant Bit Data Hiding Techniques for High-Definition Images. In: International Conference on Advanced Technologies for Communications: . Paper presented at 11th International Conference on Advanced Technologies for Communications, ATC 2018, Ho Chi Minh City, 18 October 2018 through 20 October 2018 (pp. 47-52). IEEE Computer Society
Open this publication in new window or tab >>On Moderately Significant Bit Data Hiding Techniques for High-Definition Images
2018 (English)In: International Conference on Advanced Technologies for Communications, IEEE Computer Society , 2018, p. 47-52Conference paper, Published paper (Refereed)
Abstract [en]

In this paper, we study moderately significant bit data hiding techniques for high-definition (HD) images. In contrast to least significant bit data hiding, we explore the potential of HD images to engage higher order bits for increasing the capacity of hiding secret images. In particular, the number of secret images embedded in moderately significant bits of a given cover image is successively increased to study the impact of this data hiding approach on image fidelity and image quality in the context of HD images. A comprehensive performance assessment is conducted on the stego-image carrying the secret images in terms of peak-signal-to-noise ratio (PSNR) and structural similarity (SSIM) index. It is shown that HD images indeed offer the potential of hiding several images within certain image fidelity and objective perceptual image quality constraints of the resulting stego-HD images. © 2018 IEEE.

Place, publisher, year, edition, pages
IEEE Computer Society, 2018
Keywords
Image quality, Signal to noise ratio, Steganography, Comprehensive performance assessments, High definition, Image fidelity, Least significant bits, Peak signal to noise ratio, Perceptual image quality, Secret images, Structural similarity indices (SSIM), Digital television
National Category
Communication Systems
Identifiers
urn:nbn:se:bth-17622 (URN)10.1109/ATC.2018.8587484 (DOI)000458771800010 ()2-s2.0-85060813550 (Scopus ID)9781538661130 (ISBN)
Conference
11th International Conference on Advanced Technologies for Communications, ATC 2018, Ho Chi Minh City, 18 October 2018 through 20 October 2018
Available from: 2019-02-21 Created: 2019-02-21 Last updated: 2019-03-08Bibliographically approved
Tran, D. N., Zepernick, H.-J. & Chu, T. M. (2018). On the Positioning of Moderately Significant Bit Data Hiding in High-Definition Images. In: Wysocki, TA Wysocki, BJ (Ed.), 2018 12TH INTERNATIONAL CONFERENCE ON SIGNAL PROCESSING AND COMMUNICATION SYSTEMS (ICSPCS): . Paper presented at 12th International Conference on Signal Processing and Communication Systems (ICSPCS, Cairns, DEC 17-19. IEEE
Open this publication in new window or tab >>On the Positioning of Moderately Significant Bit Data Hiding in High-Definition Images
2018 (English)In: 2018 12TH INTERNATIONAL CONFERENCE ON SIGNAL PROCESSING AND COMMUNICATION SYSTEMS (ICSPCS) / [ed] Wysocki, TA Wysocki, BJ, IEEE , 2018Conference paper, Published paper (Refereed)
Abstract [en]

Mobile services have seen a shift from voice services toward visual stimuli-based services ranging from mobile imaging over mobile gaming to upcoming mobile extended reality applications. In this paper, given the increased resolutions of the related mobile multimedia formats, we propose and examine positioning strategies for light-weight data hiding of secret images in moderately significant bits of high-definition (HD) cover images. Apart from linear and random positioning, visual attention mechanisms of the human visual system are addressed by separately utilizing either the background or center of the HD cover image for data hiding. A performance assessment of these positioning strategies is conducted in terms of the peak-signal-to-noise ratio (PSNR), structural similarity (SSIM) index, and visual information fidelity (VIF). It is shown that HD cover images indeed can carry more than a single secret image until noticeable quality loss is observed. Further, it is revealed that linear positioning of secret images in the whole, background, or center of HD cover images outperforms random positioning. As for the utilized performance metrics, it has been observed that PSNR cannot differentiate among the positioning strategies as it measures pixel-by-pixel differences and hence removes the impact of the position of the hidden data. As for the two quality metrics, compared to the SSIM index, VIF is found to stronger differentiate among the performance of the considered positioning strategies.

Place, publisher, year, edition, pages
IEEE, 2018
Keywords
LSB SUBSTITUTION; QUALITY; PSNR
National Category
Telecommunications
Identifiers
urn:nbn:se:bth-17693 (URN)000458665600008 ()978-1-5386-5602-0 (ISBN)
Conference
12th International Conference on Signal Processing and Communication Systems (ICSPCS, Cairns, DEC 17-19
Available from: 2019-03-07 Created: 2019-03-07 Last updated: 2019-04-05Bibliographically approved
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