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A 3-D Video Watermark Embedding Technology in DCT-CS Domain

Longfei Cai, Huimin Zhao, Jun Cai, Li Zhu
2015 International Journal of Machine Learning and Computing  
For protection fingerprint images by the video watermark, the paper proposes a novel 3-D bedding scheme which can hide digital fingerprint images in DCT-CS domain.  ...  Video watermark is an important tool using for protecting digital content in information security field. In video watermark achievement, the embedding method is an important technology.  ...  For some video compression formats, such as MPEG-2 and MPEG-4, the number of variable parameters are many more (i.e., variation in bit-rate, Group of Pictures size, and so on) [4] , [5] .  ... 
doi:10.7763/ijmlc.2015.v5.508 fatcat:4tcvepzzpzfzhob4uatd7ikqbu

Context-based adaptive arithmetic coding in time and frequency domain for the lossless compression of audio coding parameters at variable rate

Jing Wang, Xuan Ji, Shenghui Zhao, Xiang Xie, Jingming Kuang
2013 EURASIP Journal on Audio, Speech, and Music Processing  
For a set of audio samples used in the G.719 application, the proposed technique achieves an average bit rate saving of 7.2% at low bit rate coding mode while producing audio quality equal to that of the  ...  This paper presents a novel lossless compression technique of the context-based adaptive arithmetic coding which can be used to further compress the quantized parameters in audio codec.  ...  Acknowledgements The authors would like to thank the reviewers for their suggestions which have contributed a lot to the great improvement of the manuscript.  ... 
doi:10.1186/1687-4722-2013-9 fatcat:vb44lcreqfb5rpkzbwvjxhzp4a

Real-time frame-dependent video watermarking in VLC domain

Chun-Shien Lu, Jan-Ru Chen, Kuo-Chin Fan
2005 Signal processing. Image communication  
Digital watermarking is a helpful technology for providing copyright protection for valuable multimedia data.  ...  Since video sequences are usually compressed before they are transmitted over networks, we first describe how watermark signals can be embedded into compressed video while keeping the desired bit-rate  ...  In [13] , Langelaar et al. proposed a video watermarking scheme which can be used in the compressed domain by modifying the codewords generated by a variable length codeword (VLC).  ... 
doi:10.1016/j.image.2005.03.012 fatcat:kusheiawjvfspj6rjgthe45vgy

Performance Optimization For Multimedia Transmission In Wireless Home Networks

Paolo Bucciol, Gabriella Convertino, Juan Carlos De Martin, Diego Melpignano, Antonio Servetti, Andrea Vitali
2006 Zenodo  
As bandwidth available for A/V streaming varies with time, Dynamic Rate Shaper (DRS) transcoding is applied in the streaming server controlled by a CLC module.  ...  the DCT domain the coefficients to achieve a defined output rate. • Frame rate change: it allows reducing the incoming frame rate of a compressed stream by dropping B frames.  ... 
doi:10.5281/zenodo.52988 fatcat:lt7i5mguanbnfc4cff64udncn4

A Tutorial and Review on Inter-Layer FEC Coded Layered Video Streaming

Yongkai Huo, Cornelius Hellge, Thomas Wiegand, Lajos Hanzo
2015 IEEE Communications Surveys and Tutorials  
Our conclusions are provided in Section IX, where the pertinent design guidelines of layered video coding schemes will be summarized.  ...  For the sake of combating this problem, the class of inter-layer forward error correction (IL-FEC) solutions, also referred to as layer-aware FEC (LA-FEC 1 ), has been proposed for layered video transmissions  ...  In the above UEP schemes, variable-rate FEC codes were assigned to the different-sensitivity layers for improving the reconstructed video quality.  ... 
doi:10.1109/comst.2015.2392378 fatcat:klyytcham5dt5by24t7crr3r6i

Multimedia Traffic over Wireless and Satellite Networks [chapter]

Floriano De, Mauro Tropea, Peppino Fazio
2010 Digital Video  
The purpose of this study in [60] is to propose a quality metric of video encoded with variable frame rate and quantization parameters suitable for mobile video broadcasting applications.  ...  Since the number of bytes in a frame is dependent upon the content of the video, the actual bit rate is variable over time. However, the MPEG video supports also the constant bit rate (CBR) mode.  ...  and lossy compression.  ... 
doi:10.5772/8023 fatcat:aet6s5dwxrga5lzbowaa3pvbei

Iterative Decoding of Serially Concatenated Arithmetic and Channel Codes With JPEG 2000 Applications

Marco Grangetto, Bartolo Scanavino, Gabriella Olmo, Sergio Benedetto
2007 IEEE Transactions on Image Processing  
An error-resilient arithmetic coder with a forbidden symbol is used in order to improve the performance of the joint source/channel scheme.  ...  In this paper, an innovative joint-source channel coding scheme is presented.  ...  In [23] , the MAP decoding of AC is applied to the case of reliable video transmission, whereas in [24] , a JSCC concatenated scheme based on AC and trellis coded modulation is applied to image transmission  ... 
doi:10.1109/tip.2007.896612 pmid:17547134 fatcat:z6ojkwo7ujgpfefsjx5idihqj4

A novel unequal error protection scheme for 3-D video transmission over cooperative MIMO-OFDM systems

Omar Hazim Salim, Wei Xiang
2012 EURASIP Journal on Wireless Communications and Networking  
A concatenating form of the rate-variable low-density parity-check (LDPC) codes and the MIMO system based on diversity of space-time block codes (STBC) is employed for protecting the prioritized video  ...  This article presents a novel unequal error protection (UEP) scheme for 3-D video transmission over cooperative MIMO-OFDM systems.  ...  Figure 9 shows the LDPC performance for the set of code length 2048 and fifty maximum iterations with variable coding rates R = 8/16, 9/16, . . . , 13/16 under BPSK modulation.  ... 
doi:10.1186/1687-1499-2012-269 fatcat:csxfy3fnhzfurl6cf7tcg7ogzq

Processor Architectures for Multimedia [chapter]

Borko Furht
1998 Multimedia Technologies and Applications for the 21st Century  
These architectures provide dedicated modules for several tasks of the video codec algorithm, such as DCT module or variable length coding [9] , [10] .  ...  In this case, the complexity of the MPEG-2 decoder becomes 735 to 876 MOPS for a bit rate of 4 Mbps.  ... 
doi:10.1007/978-0-585-28767-6_1 fatcat:bewu4c7wgncvxjk7eiu6tbpnde

Adaptive motion estimation and video vector quantization based on spatiotemporal non-linearities of human perception [chapter]

J. Malo, F. Ferri, J. Albert, J. M. Artigas
1997 Lecture Notes in Computer Science  
Also, a novel bit allocation procedure is proposed for the quantization of the DCT transform of the video signal.  ...  The two main tasks of a video coding system are motion estimation and vector quantization of the signal.  ...  Taking into account that compression is the main objective of a video coder, Dufaux et al.  ... 
doi:10.1007/3-540-63507-6_232 fatcat:yaqzbnhcxzc5zablwgiaklciwq

Estimating the Resize Parameter in End-to-end Learned Image Compression [article]

Li-Heng Chen and Christos G. Bampis and Zhi Li and Lukáš Krasula and Alan C. Bovik
2022 arXiv   pre-print
We describe a search-free resizing framework that can further improve the rate-distortion tradeoff of recent learned image compression models.  ...  To determine resize factors for different inputs, we utilize another neural network jointly trained with the compression model, with the end goal of minimizing the rate-distortion objective.  ...  Early attempts on end-to-end video compression, such as [31] , [32] , have employed frame interpolation schemes which temporally interpolate frames in a video using neural networks.  ... 
arXiv:2204.12022v1 fatcat:aalto6lg7rcodotsm7uatgllua

2020 Index IEEE Transactions on Circuits and Systems for Video Technology Vol. 30

2020 IEEE transactions on circuits and systems for video technology (Print)  
., see Sepas-Moghaddam, A., TCSVT Dec. 2020 4496-4512 Hassanpour, H., see Khosravi, M.H., TCSVT Jan. 2020 48-58 Hatzinakos, D., see 2900-2916 Hayat, M., see 2900-2916 He, C., Hu, Y., Chen, Y., Fan  ...  ., +, TCSVT May 2020 1361-1373 Toward Variable-Rate Generative Compression by Reducing the Channel Redundancy.  ...  Elgabli, A., +, TCSVT July 2020 2240-2249 Iterative Reweighted Tikhonov-Regularized Multihypothesis Prediction Scheme for Distributed Compressive Video Sensing.  ... 
doi:10.1109/tcsvt.2020.3043861 fatcat:s6z4wzp45vfflphgfcxh6x7npu

Fine-grain real-time reconfigurable pipelining

S. Kim, C. H. Ziesler, M. C. Papaefthymiou
2003 IBM Journal of Research and Development  
To evaluate our methodology, we designed an inverse discrete cosine transform (IDCT) module for MPEG-2.  ...  Consequently, VLSI systems capable of processing data at a maximum specified rate can be excessively dissipative when data rates are low.  ...  In general, two coding types are used for video compression: intraframe and interframe.  ... 
doi:10.1147/rd.475.0599 fatcat:t2z3uhpnevfeblshtew7kk5kaa

Experimental video broadcasting in DVB-RCS/S2 with land mobile satellite channel: A reliability issue

Alberto Gotta, Paolo Barsocchi
2008 2008 IEEE International Workshop on Satellite and Space Communications  
This paper aims at studying the behaviour of Satellite DVB systems in a vehicular mobile environment by deriving a channel model at packet level that accounts for the mobile characteristic of the channel  ...  . packet level FEC and interleaving, in order to boost the Quality of Service of streaming applications by providing quantitative and qualitative metrics of the reliability of such transmissions over a  ...  deeply degrade the quality of an entire audio/video sequence.  ... 
doi:10.1109/iwssc.2008.4656797 fatcat:uqmqpxpgnzfzpjs7uafptkukri

Guest Editorial: Multimedia Information Security and Its Applications in Cloud Computing

Chuan Qin, Weiming Zhang, Xinpeng Zhang
2018 Multimedia tools and applications  
images and videos, and biometric spoofing.  ...  Multimedia applications are omnipresent in our daily lives, however, a lot of relevant security issues have emerged as well, such as covert communication using multimedia files, copy-move forgery in digital  ...  Besides the auxiliary data construction, a coefficient selection strategy is also proposed in this paper to further improve compression rate.  ... 
doi:10.1007/s11042-018-5831-x fatcat:x3tdme6i7vhrbbfrxgpbl44f4a
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