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Optimal quality-aware predictor-based adaptation of multimedia messages

Steven Pigeon, Stephane Coulombe
2011 Proceedings of the 6th IEEE International Conference on Intelligent Data Acquisition and Advanced Computing Systems  
Minimizing computational cost will help cope with high-volume traffic while maximizing user-experience, as estimated by the perceived quality of adapted messages, will secure the service provider's user  ...  However, these heterogeneous devices exhibit different capabilities regarding what media types, resolution, and maximal message size they support making the adaptation of messages mandatory to ensure compatibility  ...  Device capabilities are standardized via capability profiles, or profiles for short.  ... 
doi:10.1109/idaacs.2011.6072803 dblp:conf/idaacs/PigeonC11 fatcat:dbiw3nccz5fnticpbt2iaofev4

Quality-aware predictor-based adaptation of still images for the multimedia messaging service

Steven Pigeon, Stéphane Coulombe
2013 Multimedia tools and applications  
The Multimedia Messaging Service (MMS) allows users with heterogeneous terminals to exchange structured messages composed of text, images, sound, and video.  ...  We show that the proposed solutions lead to noticeably superior image quality and faster transcoding times than comparable algorithms offered in products currently on the market and those described in  ...  If the server is capable of determining the capabilities of the terminal, but incapable or unwilling to perform adaptation, it can apply an alternative strategy, such as sending a text-only SMS along with  ... 
doi:10.1007/s11042-013-1481-1 fatcat:icc5dyev7vflzlvrou5f2cvdeq

A Low Complexity MPEG Video Decoder with Arbitrary Downscaling Capability

Shu Shi, Feng Liu, Xu Cheng
2006 2006 IEEE/ACM/IFIP Workshop on Embedded Systems for Real Time Multimedia  
The DCT block recomposition method, which was used in resizing static image, is introduced to downscale video in frequency domain with arbitrary factors.  ...  This paper presents some new techniques to implement arbitrary downscaling in decoding MPEG video with very low complexity.  ...  Implementation Arbitrary Downscaled IDCT The DCT coefficient conversion in frequency domain has also been studied by researchers on static image resizing and video transcoding for many years [6]  ... 
doi:10.1109/estmed.2006.321268 dblp:conf/estimedia/ShiLC06 fatcat:niv5jjtrnvbfpohbnnngy25udi

Do text transcoders improve usability for disabled users?

Giorgio Brajnik, Daniela Cancila, Daniela Nicoli, Mery Pignatelli
2005 Proceedings of the 2005 International Cross-Disciplinary Workshop on Web Accessibility (W4A) - W4A '05  
Although the potential benefits of text transcoders are multifaceted and discussions on appropriateness of text transcoders to produce accessible versions of web sites are still ongoing, at the moment  ...  the impact of transcoded pages on disabled web users has not been scientifically studied yet.  ...  We adopted the ISO definition of accessibility: "usability of a product, service, environment or facility by people with the widest range of capabilities" [11] .  ... 
doi:10.1145/1061811.1061814 dblp:conf/w4a/BrajnikCNP05 fatcat:m563rb6iqncjxj33pmj4swjiwq

Robust QoE-aware prediction-based dynamic content adaptation framework applied to slides documents in mobile Web conferencing

Habib Louafi, Stéphane Coulombe, Umesh Chandra
2014 Multimedia tools and applications  
In this paper, we propose a robust prediction-based dynamic content adaptation framework for JPEG and XHTML formats that computes near-optimal transcoding parameters dynamically with very few computations  ...  (a) Transcoded with optimal parameters (z = 0.4 and QF = 70), (b) Transcoded with z = 0.2 and QF = 80, (c) Transcoded with z = 0.7 and QF = 10, (d) Transcoded with near-optimal parameters computed with  ...  The device's capabilities and the user preferences are extracted and resolved on the Web server, with the option of using a cached UAProf database.  ... 
doi:10.1007/s11042-014-2030-2 fatcat:cs57r43ccnd5pb4hl6grmukpgy

Robust Optimized Discrete Wavelet Transform-Singular Value Decomposition Based Video Watermarking

Swaraja Kuraparthi, Meenakshi Kollati, Padmavathi Kora
2019 Traitement du signal  
Thus when the Peak Signal to Noise Ratio (PSNR) and Normalized Correlation (NC) performance of the proposed algorithm is correlated with other related techniques it is found that the PSNR of the proposed  ...  In such circumstances, detective bees regulate the novel places arbitrarily with the aim of exchanging the places that are eliminated.  ...  The sources of food with L number are preferred arbitrarily among the acceptable lower Pmin=(p(min,1),… p(min,X)) as well as upper limit Pmax=(p(min,1),… p(min,X) ) of distribution with each including  ... 
doi:10.18280/ts.360612 fatcat:rvpy5izxkfbsbdryin7nbfhkce

Quality Prediction-Based Dynamic Content Adaptation Framework Applied to Collaborative Mobile Presentations

Habib Louafi, Stephane Coulombe, Umesh Chandra
2013 IEEE Transactions on Mobile Computing  
In this paper, we propose a dynamic framework that enables us to estimate transcoding parameters on the fly in order to generate near-optimal adapted content for each user.  ...  adaptation can be very useful and practical for interactive multimedia applications, because it allows the delivery of highly customized content to the end-user without the need to generate and store multiple transcoded  ...  Note that, the native OpenOffice XHTML filter capability was very limited, however, and it was found to have numerous bugs.  ... 
doi:10.1109/tmc.2012.173 fatcat:h4j5t3zngvd35mvnf7hbp2ijnm

Resource-driven content adaptation

Yung-Hsiang Lu, David S. Ebert, Edward J. Delp, Charles A. Bouman, Eric L. Miller, Ilya Pollak
2006 Computational Imaging IV  
In order to provide useful content across systems with different resources, we propose "resource-driven content adaptation" by augmenting the content with metadata that can be used to display or render  ...  The concept of "anytime" at "anywhere" with "any device" requires that the content be adapted to meet the needs of the system and the user.  ...  With this large difference in display capability, the content in many applications needs to be adapted to the display and the user environment.  ... 
doi:10.1117/12.659736 dblp:conf/cimaging/LuED06 fatcat:3vfdo5bhszhijjqcgk4tsaksfy

Building a post-compression region-of-interest encryption framework for existing video surveillance systems

Andreas Unterweger, Kevin Van Ryckegem, Dominik Engel, Andreas Uhl
2015 Multimedia Systems  
We propose an encryption framework design and implementation which add region of interest encryption functionality to existing video surveillance systems with minimal integration and deployment effort.  ...  We therefore recommend to resize the images so that they all have the same size.  ...  Fig. 1 depicts a schematic of a typical surveillance system which is capable of post-compression RoI encryption.  ... 
doi:10.1007/s00530-015-0473-6 fatcat:hm7c6itxxvfjpmslc2466s6x54

Hybrid DWT-SVD Based Video Watermarking For Copyright Protection Using Improved Artificial Bee Colony Optimization Algorithm

Anjaneyulu Sake, RamaShri Tirumala
2015 Research Journal of Applied Sciences Engineering and Technology  
The experimental results proved the capability to embed the watermark in short video sequences and the effectiveness of the algorithm against some attacks such as re-compression by the H.264 codec, transcoding  ...  A watermark is capable of exhibiting numerous significant characteristics.  ... 
doi:10.19026/rjaset.11.2035 fatcat:naaa7a63unghrjmhjkyjtuv6ee

Creating global software: Text handling and localization in Taligent's CommonPoint application system

M. E. Davis, J. D. Grimes, D. J. Knoles
1996 IBM Systems Journal  
M any organizations today are faced with the challenge of implementing software that operates seamlessly across national borders.  ...  These applications are then localized for use in a particular geographic region, usually a country, that shares a language along with other local characteristics such as a time zone, currency units, and  ...  For efficiency, the block is resized only when necessary. Figure 1 shows the use of memory with successive character insertions.  ... 
doi:10.1147/sj.352.0227 fatcat:5zqkw2y22ndwlgfdc4qhvezqnu

MediaDART: A Decentralized Framework for Sharing Multimedia Content

Maurizio Agelli, Orlando Murru
2008 Sixth International Conference on Creating, Connecting and Collaborating through Computing (C5 2008)  
Inspired by the participative model of Web 2.0, MediaDART relies on a scalable and decentralized architecture that can grow with the contribution of users.  ...  Adapting a resource implies the creation of a new resource by applying operations of transcoding, batch editing, resizing, or bit-rate modification.  ...  A node is a single computer that is capable to provide all resource-related MediaDART services.  ... 
doi:10.1109/c5.2008.23 dblp:conf/c5/AgelliM08 fatcat:ynarvfltabdzbckjd6c7w64es4

PrivEdge: From Local to Distributed Private Training and Prediction [article]

Ali Shahin Shamsabadi, Adria Gascon, Hamed Haddadi, Andrea Cavallaro
2020 arXiv   pre-print
MLaaS applications often rely on centralised collection and aggregation of user data, which could lead to significant privacy concerns when dealing with sensitive personal data.  ...  With PrivEdge, each user independently uses their private data to locally train a one-class reconstructive adversarial network that succinctly represents their training data.  ...  As the width of the lines are larger than their heights, and to keep the aspect ratio during resizing, we first resize the height of the text to 128, followed by resizing the width with the same height  ... 
arXiv:2004.05574v1 fatcat:lw4wzi7zlfe4texugl4ovxvwuu

Information Forensics: An Overview of the First Decade

Matthew C. Stamm, Min Wu, K. J. Ray Liu
2013 IEEE Access  
issue that must be addressed next, namely, to ensure that content, devices, and intellectual property are being used by authorized users for legitimate purposes, and to be able to forensically prove with  ...  FIGURE 1 . 1 The p-map of an unaltered image (a) along with the p-map of a resized image (b).  ...  This is no longer sufficient once a data stream may be transcoded in various ways.  ... 
doi:10.1109/access.2013.2260814 fatcat:l3hs7vh2nzakpkihwmkubh24dy

Benchmarking of image watermarking algorithms for digital rights management

2004 Proceedings of the IEEE  
The VT is generally arbitrarily set when the forced choice gives 75% of well-classified images (watermarked and nonwatermarked ones). The VT is also very useful for dealing with attacks.  ...  During an appearance before a court, the key owner will be the single person capable to produce the watermark in question; see such early papers as [14] ).  ... 
doi:10.1109/jproc.2004.827361 fatcat:oxzupzexezelrisa4sx6hpgtgi
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