Log in

Relevant bibliographies by topics / MPEG video codecs / Journal articles

To see the other types of publications on this topic, follow the link: MPEG video codecs.

Journal articles on the topic 'MPEG video codecs'

Author: Grafiati

Published: 4 June 2021

Last updated: 3 February 2022

Create a spot-on reference in APA, MLA, Chicago, Harvard, and other styles

Select a source type:

Consult the top 45 journal articles for your research on the topic 'MPEG video codecs.'

Next to every source in the list of references, there is an 'Add to bibliography' button. Press on it, and we will generate automatically the bibliographic reference to the chosen work in the citation style you need: APA, MLA, Harvard, Chicago, Vancouver, etc.

You can also download the full text of the academic publication as pdf and read online its abstract whenever available in the metadata.

Browse journal articles on a wide variety of disciplines and organise your bibliography correctly.

1

Jang, Bong-Joo, Suk-Hwan Lee, Young-Suk Lee, and Ki-Ryong Kwon. "Biological Viral Infection Watermarking Architecture of MPEG/H.264/AVC/HEVC." Electronics 8, no. 8 (August 13, 2019): 889. http://dx.doi.org/10.3390/electronics8080889.

Full text

Abstract:

This paper addresses the viral infectious watermarking (VIW) model using biological virus infection for a new-paradigm of video copyright protection of MPEG/H.264/AVC/HEVC. Our model aims to spread or infect the watermark to different codecs each time video contents are copied, edited, or transcoded. Thus, we regard the watermark as the infectious virus, the video content as the host, and the video codec as the contagion medium and then model pathogen, mutant, and contagion as the infectious watermark. Then, we define the techniques of viral infectious watermark generation, kernel-based VIW, and content-based VIW. Furthermore, we present a reversible VIW for fast infection in VIW model. This makes the video quality and strength be adaptively controlled in the infectious process. Experiment results verified that our VIW model can detect or recover the reversible watermark without loss in different codecs and also can maintain the quality of video content that is recovered to the same bit rate.

APA, Harvard, Vancouver, ISO, and other styles

2

Das, Mousumi, Atahar Mostafa, and Khan Wahid. "Division-Free Multiquantization Scheme for Modern Video Codecs." Advances in Multimedia 2012 (2012): 1–10. http://dx.doi.org/10.1155/2012/302893.

Full text

Abstract:

The current trend of digital convergence leads to the need of the video encoder/decoder (codec) that should support multiple video standards on a single platform as it is expensive to use dedicated video codec chip for each standard. The paper presents a high performance circuit shared architecture that can perform the quantization of five popular video codecs such as H.264/AVC, AVS, VC-1, MPEG-2/4, and JPEG. The proposed quantizer architecture is completely division-free as the division operation is replaced by shift and addition operations for all the standards. The design is implemented on FPGA and later synthesized in CMOS 0.18 μm technology. The results show that the proposed design satisfies the requirement of all five codecs with a maximum decoding capability of 60 fps at 187 MHz on Xilinx FPGA platform for 1080 p HD video.

APA, Harvard, Vancouver, ISO, and other styles

3

Alsarayreh, Mahmoud, and Hussein Alzoubi. "GME of MPEG-4 on Multicore Processors." International Journal of Computer Vision and Image Processing 7, no. 4 (October 2017): 16–27. http://dx.doi.org/10.4018/ijcvip.2017100102.

Full text

Abstract:

Multicore processor systems are leading the microprocessor industry today. This has placed more pressure upon programmers to write parallel programs that wisely balance load among cores on the same system and optimize performance. On the other hand, the video-form of data is getting more and more importance. Video is the fuel for many contemporary Internet applications like YouTube. Video is the most storage and bandwidth-hungry type of data, especially in the context of new video applications like HDTV and IPTV. Exploiting video compression manifests itself in real-time applications. In light of this, it is important to bring to practice parallelized video codecs programmed to run on multicore systems. In this paper, the authors concentrate on one aspect of the MPEG-4 video codec, the global motion estimation and compensation. They present a parallel implementation for MPEG-4 global motion estimation and compensation on multicore processors and provide a detailed performance evaluation under various scenarios.

APA, Harvard, Vancouver, ISO, and other styles

4

De Schrijver, Davy, Chris Poppe, Sam Lerouge, Wesley De Neve, and Rik Van de Walle. "MPEG-21 bitstream syntax descriptions for scalable video codecs." Multimedia Systems 11, no. 5 (February 8, 2006): 403–21. http://dx.doi.org/10.1007/s00530-006-0021-5.

Full text

APA, Harvard, Vancouver, ISO, and other styles

5

Battista, Stefano, Massimo Conti, and Simone Orcioni. "Methodology for Modeling and Comparing Video Codecs: HEVC, EVC, and VVC." Electronics 9, no. 10 (September 27, 2020): 1579. http://dx.doi.org/10.3390/electronics9101579.

Full text

Abstract:

Online videos are the major source of internet traffic, and are about to become the largest majority. Increasing effort is aimed to developing more efficient video codecs. In order to compare existing and novel video codecs, this paper presents a simple but effective methodology to model their performance in terms of Rate Distortion (RD). A linear RD model in the dB variables, Peak Signal-to-Noise Ratio (PSNR) and Bitrate (BR), easily allows us to estimate the difference in PSNR or BR between two sets of encoding conditions. Six sequences from the MPEG test set with the same resolution, encoded at different BR and different Quantization Parameters, were used to create the data set to estimate each RD model. Three codecs (HEVC, EVC, and VVC) were compared with this methodology, after estimating their models. Fitting properties of each model and a performance comparison between the models are finally shown and discussed.

APA, Harvard, Vancouver, ISO, and other styles

6

Khosravi, Mohammad R., Sadegh Samadi, and Reza Mohseni. "Spatial Interpolators for Intra-Frame Resampling of SAR Videos: A Comparative Study Using Real-Time HD, Medical and Radar Data." Current Signal Transduction Therapy 15, no. 2 (December 1, 2020): 144–96. http://dx.doi.org/10.2174/2213275912666190618165125.

Full text

Abstract:

Background: Real-time video coding is a very interesting area of research with extensive applications into remote sensing and medical imaging. Many research works and multimedia standards for this purpose have been developed. Some processing ideas in the area are focused on second-step (additional) compression of videos coded by existing standards like MPEG 4.14. Materials and Methods: In this article, an evaluation of some techniques with different complexity orders for video compression problem is performed. All compared techniques are based on interpolation algorithms in spatial domain. In details, the acquired data is according to four different interpolators in terms of computational complexity including fixed weights quartered interpolation (FWQI) technique, Nearest Neighbor (NN), Bi-Linear (BL) and Cubic Cnvolution (CC) interpolators. They are used for the compression of some HD color videos in real-time applications, real frames of video synthetic aperture radar (video SAR or ViSAR) and a high resolution medical sample. Results: Comparative results are also described for three different metrics including two reference- based Quality Assessment (QA) measures and an edge preservation factor to achieve a general perception of various dimensions of the mentioned problem. Conclusion: Comparisons show that there is a decidable trade-off among video codecs in terms of more similarity to a reference, preserving high frequency edge information and having low computational complexity.

APA, Harvard, Vancouver, ISO, and other styles

7

Padmanabhan, S. Anantha, and Krishna Kumar. "An Efficient Video Compression Encoder Based on Wavelet Lifting Scheme in LSK." Journal of Computational and Theoretical Nanoscience 13, no. 10 (October 1, 2016): 7581–91. http://dx.doi.org/10.1166/jctn.2016.5756.

Full text

Abstract:

This paper presents a video compression system using wavelet lifting scheme. Video compression algorithms (“codecs”) manipulate video signals to dramatically reduce the storage and bandwidth required while maximizing the perceived video quality. There are four common methods for compression; discrete cosine transforms (DCT), vector quantization (VQ), fractal compression, and discrete wavelet transform (DWT). A gradient based motion estimation algorithm based on shapemotion prediction is used which takes advantage of the correlation between neighboring Binary Alpha Blocks (BABs), to match with the MPEG-4 shape coding case and speed up the estimation process. Then a non-redundant wavelet transform has been implemented as an iterative filter banks with down sampling operations. LSK operates without lists and is suitable for a fast, simple hardware implementation. Here the Set Partitioned Embedded bloCK coder (SPECK) image compression called Improved Listless SPECK (ILSPECK) is used. ILSPECK code a single zero to several insignificant subbands. This reduces the length of the output bit string as well as encoding/decoding time.

APA, Harvard, Vancouver, ISO, and other styles

8

Widyantara, I. Made Oka, Muhammad Audy Bazly, and Ngurah Indra ER. "ADAPTIVE STREAMING OVER HTTP (DASH) UNTUK APLIKASI VIDEO STREAMING." Majalah Ilmiah Teknologi Elektro 14, no. 2 (December 30, 2015): 18. http://dx.doi.org/10.24843/mite.2015.v14i02p04.

Full text

Abstract:

This paper aims to analyze Internet-based streaming video service in the communication media with variable bit rates. The proposed scheme on Dynamic Adaptive Streaming over HTTP (DASH) using the internet network that adapts to the protocol Hyper Text Transfer Protocol (HTTP). DASH technology allows a video in the video segmentation into several packages that will distreamingkan. DASH initial stage is to compress the video source to lower the bit rate video codec uses H.26. Video compressed further in the segmentation using MP4Box generates streaming packets with the specified duration. These packages are assembled into packets in a streaming media format Presentation Description (MPD) or known as MPEG-DASH. Streaming video format MPEG-DASH run on a platform with the player bitdash teritegrasi bitcoin. With this scheme, the video will have several variants of the bit rates that gave rise to the concept of scalability of streaming video services on the client side. The main target of the mechanism is smooth the MPEG-DASH streaming video display on the client. The simulation results show that the scheme based scalable video streaming MPEG-DASH able to improve the quality of image display on the client side, where the procedure bufering videos can be made constant and fine for the duration of video views

APA, Harvard, Vancouver, ISO, and other styles

9

XU, JUNYU, YUTING SU, and QINGZHONG LIU. "DETECTION OF DOUBLE MPEG-2 COMPRESSION BASED ON DISTRIBUTIONS OF DCT COEFFICIENTS." International Journal of Pattern Recognition and Artificial Intelligence 27, no. 01 (February 2013): 1354001. http://dx.doi.org/10.1142/s0218001413540013.

Full text

Abstract:

Detection of double compression in digital multimedia is considered to reveal the history of multimedia signal processing, which is very useful in digital forensics. In this paper, distributions of quantized DCT coefficients are analyzed in depth after double MPEG-2 compression with constant bit rate (CBR) mode, and a new algorithm is presented to detect double MPEG-2 compression based on convex patterns in the distribution of quantized DCT coefficients. In order to demonstrate the practical value of our proposed algorithm, two digital video cameras (DV) and two MPEG-2 software coders are utilized to simulate the general process of double MPEG-2 compression. Experiment results show that the proposed scheme can effectively detect doubly MPEG-2 compressed videos with CBR mode and the target output bit rate can vary in a large range.

APA, Harvard, Vancouver, ISO, and other styles

10

Kim, Seong-Min, Ju-Hyun Park, Seong-Mo Park, Bon-Tae Koo, Kyoung-Seon Shin, Ki-Bum Suh, Ig-Kyun Kim, Nak-Woong Eum, and Kyung-Soo Kim. "Hardware-Software Implementation of MPEG-4 Video Codec." ETRI Journal 25, no. 6 (December 3, 2003): 489–502. http://dx.doi.org/10.4218/etrij.03.0102.0019.

Full text

APA, Harvard, Vancouver, ISO, and other styles

11

Dung-Yung Liu, Chien-Wu Tsai, and Ja-Ling Wu. "A Java-based MPEG-4 like video codec." IEEE Transactions on Consumer Electronics 44, no. 1 (1998): 200–205. http://dx.doi.org/10.1109/30.663748.

Full text

APA, Harvard, Vancouver, ISO, and other styles

12

RAVI, ARUNA, and K. R. RAO. "PERFORMANCE ANALYSIS AND COMPARISON OF THE DIRAC VIDEO CODEC WITH H.264/MPEG-4 PART 10 AVC." International Journal of Wavelets, Multiresolution and Information Processing 09, no. 04 (July 2011): 635–54. http://dx.doi.org/10.1142/s0219691311004341.

Full text

Abstract:

Dirac is a hybrid motion-compensated state-of-the-art video codec that can be used without the payment of license fees. It can be easily adapted for new platforms and is aimed at applications ranging from HDTV to web streaming. The objective of this paper is to analyze Dirac video codec based on several input test sequences, and compare its performance with H.264/MPEG-4 Part 10 AVC. Both Dirac and H.264 are implemented using different video test sequences at various constant "target" bit rates ranging from 10 KBps to 200 KBps at image resolutions from QCIF to SD. The results have been recorded graphically and we arrive at a conclusion whether Dirac's performance is comparable to H.264. We also research whether Dirac outperforms H.264/MPEG-4 Part 10 in terms of computational speed and efficiency.

APA, Harvard, Vancouver, ISO, and other styles

13

Khan, Imran Ullah, M. A. Ansari, S. Hasan Saeed, and Kakul Khan. "Evaluation and Analysis of Rate Control Methods for H.264/AVC and MPEG-4 Video Codec." International Journal of Electrical and Computer Engineering (IJECE) 8, no. 2 (April 1, 2018): 1273. http://dx.doi.org/10.11591/ijece.v8i2.pp1273-1280.

Full text

Abstract:

<p class="Default">Audio, image and video signals produce a vast amount of data. The only solution of this problem is to compress data before storage and transmission. In general there is the three crucial terms as, Bit Rate Reduction, Fast Data Transfer and Reduction in Storage. Rate control is a vigorous factor in video coding. In video communications, rate control must ensure the coded bitstream can be transmitted effectively and make full use of the narrow bandwidth. There are various test models usually suggested by a standard during the development of video codes models in order to video coding which should be suffienciently be efficient based on H.264 at very low bit rate. These models are Test Model Number 5 (TMN5), Test Model Number 8 for H.263, and Verification Model 8 (VM8) for MPEG-4 and H.264 etc. In this work, Rate control analysis for H.264, MPEG-4 performed. For Rate control analysis test model verification model version 8.0 is adopted.</p>

APA, Harvard, Vancouver, ISO, and other styles

14

Khan, Imran Ullah, M. A. Ansari, S. Hasan Saeed, and Kakul Khan. "Evaluation and Analysis of Rate Control Methods for H.264/AVC and MPEG-4 Video Codec." International Journal of Electrical and Computer Engineering (IJECE) 8, no. 5 (October 1, 2018): 2788. http://dx.doi.org/10.11591/ijece.v8i5.pp2788-2794.

Full text

Abstract:

<p class="Default"><span>Audio, image and video signals produce a vast amount of data. The only solution of this problem is to compress data before storage and transmission. In general there is the three crucial terms as, Bit Rate Reduction, Fast Data Transfer and Reduction in Storage. Rate control is a vigorous factor in video coding. In video communications, rate control must ensure the coded bitstream can be transmitted effectively and make full use of the narrow bandwidth. There are various test models usually suggested by a standard during the development of video codes models in order to video coding which should be suffienciently be efficient based on H.264 at very low bit rate. These models are Test Model Number 5 (TMN5), Test Model Number 8 for H.263, and Verification Model 8 (VM8) for MPEG-4 and H.264 etc. In this work, Rate control analysis for H.264, MPEG-4 performed. For Rate control analysis test model verification model version 8.0 is adopted.</span></p>

APA, Harvard, Vancouver, ISO, and other styles

15

Akiyama, T., H. Aono, K. Aoki, K. W. Ler, B. Wilson, T. Araki, T. Morishige, et al. "MPEG2 video codec using image compression DSP." IEEE Transactions on Consumer Electronics 40, no. 3 (1994): 466–72. http://dx.doi.org/10.1109/30.320829.

Full text

APA, Harvard, Vancouver, ISO, and other styles

16

Biswas, Kusan. "A Robust and High Capacity Data Hiding Method for H.265/HEVC Compressed Videos with Block Roughness Measure and Error Correcting Techniques." Symmetry 11, no. 11 (November 3, 2019): 1360. http://dx.doi.org/10.3390/sym11111360.

Full text

Abstract:

Recently, the H.265/HEVC video coding has been standardised by the ITU-T VCEG and the ISO/IEC MPEG. The improvements in H.265/HEVC video coding structure (CTU, motion compensation, inter- and intra-prediction, etc.) open up new possibilities to realise better data hiding algorithms in terms of capacity and robustness. In this paper, we propose a new data hiding method for HEVC videos. The proposed method embeds data in 4 × 4 and some selected larger transform units. As theory of Human Visual System suggests that human vision is less sensitive to change in uneven areas, relatively coarser blocks among the 8 × 8 and 16 × 16 blocks are selected as embedding destinations based on the proposed Jensen-Shannon Divergence and Second Moment (JSD-SM) block coarseness measure. In addition, the SME(1,3,7) embedding technique is able to embed three bits of message by modifying only one coefficient and therefore exhibits superior distortion performance. Furthermore, to achieve better robustness against re-compression attacks, BCH and Turbo error correcting codes have been used. Comparative studies of BCH and Turbo codes show the effectiveness of Turbo codes. Experimental results show that the proposed method achieves greater payload capacity and robustness than many existing state-of-the-art techniques without compromising on the visual quality.

APA, Harvard, Vancouver, ISO, and other styles

17

Kingra, Staffy, Naveen Aggarwal, and Raahat Devender Singh. "Video Inter-frame Forgery Detection Approach for Surveillance and Mobile Recorded Videos." International Journal of Electrical and Computer Engineering (IJECE) 7, no. 2 (April 1, 2017): 831. http://dx.doi.org/10.11591/ijece.v7i2.pp831-841.

Full text

Abstract:

We are living in an age where use of multimedia technologies like digital recorders and mobile phones is increasing rapidly. On the other hand, digital content manipulating softwares are also increasing making it easy for an individual to doctor the recorded content with trivial consumption of time and wealth. Digital multimedia forensics is gaining utmost importance to restrict unethical use of such easily available tampering techniques. These days, it is common for people to record videos using their smart phones. We have also witnessed a sudden growth in the use of surveillance cameras, which we see inhabiting almost every public location. Videos recorded using these devices usually contains crucial evidence of some event occurence and thereby most susceptible to inter-frame forgery which can be easily performed by insertion/removal/replication of frame(s). The proposed forensic technique enabled detection of inter-frame forgery in H.264 and MPEG-2 encoded videos especially mobile recorded and surveillance videos. This novel method introduced objectivity for automatic detection and localization of tampering by utilizing prediction residual gradient and optical flow gradient. Experimental results showed that this technique can detect tampering with 90% true positive rate, regardless of the video codec and recording device utilized and number of frames tampered.

APA, Harvard, Vancouver, ISO, and other styles

18

Saw, Yoo-Sok, P. M. Grant, J. M. Hannah, and B. Mulgrew. "Radial basis function video rate estimator for constant bit rate MPEG coders." Electronics Letters 32, no. 21 (1996): 1969. http://dx.doi.org/10.1049/el:19961302.

Full text

APA, Harvard, Vancouver, ISO, and other styles

19

Chang, June-Young, Won-Jong Kim, Young-Hwan Bae, Jin Ho Han, Han-Jin Cho, and Hee-Bum Jung. "Performance Analysis for MPEG-4 Video Codec Based on On-Chip Network." ETRI Journal 27, no. 5 (October 14, 2005): 497–503. http://dx.doi.org/10.4218/etrij.05.0905.0025.

Full text

APA, Harvard, Vancouver, ISO, and other styles

20

Ramchandran, K., A. Ortega, and M. Vetterli. "Bit allocation for dependent quantization with applications to multiresolution and MPEG video coders." IEEE Transactions on Image Processing 3, no. 5 (1994): 533–45. http://dx.doi.org/10.1109/83.334987.

Full text

APA, Harvard, Vancouver, ISO, and other styles

21

Alpert, T., V. Baroncini, D. Choi, L. Contin, R. Koenen, F. Pereira, and H. Peterson. "Subjective evaluation of MPEG-4 video codec proposals: Methodological approach and test procedures." Signal Processing: Image Communication 9, no. 4 (May 1997): 305–25. http://dx.doi.org/10.1016/s0923-5965(97)00004-0.

Full text

APA, Harvard, Vancouver, ISO, and other styles

22

Qiang, Haifeng. "Consumption Reduction Solution of TV News Broadcast System Based on Wireless Communication Network." Complexity 2021 (April 20, 2021): 1–13. http://dx.doi.org/10.1155/2021/9936803.

Full text

Abstract:

At present, the news broadcast system using mobile network on the market provides the basic functions required by TV stations, but there are still many problems and shortcomings. In view of the main problems existing in the current system and combined with the actual needs of current users, this paper has preliminarily developed a news broadcast system based on 5G Live. The card frame adaptive strategy significantly improves the user experience by using gradual video frame buffering technology. Hardware codec technology significantly reduces the consumption of system resources; H.264 high-compression algorithm can reduce network bandwidth by 50% compared with MPEG-2 and MPEG-4 without a significant change in image quality. At the same time, the use of mobile video acquisition terminals in the system not only solves the problem that satellite broadcast vehicles cannot reach the site due to the lack of roads but also greatly reduces the cost of early deployment and late maintenance of the news broadcast system. This paper studies the card frame adaptive strategy, the system resource consumption reduction solution, and the deployment scheme of the mobile video and audio transmission terminal, which is of great significance to improve the design and research of the news broadcast system under the wireless network application and also has certain reference value for the design of other broadcasting and television solutions.

APA, Harvard, Vancouver, ISO, and other styles

23

Ranathunga, Lochandaka, Roziati Zainuddin, and Nor Aniza Abdullah. "Compacted Dither Pattern Codes Over MPEG-7 Dominant Colour Descriptor In Video Visual Depiction." Malaysian Journal of Computer Science 23, no. 2 (September 1, 2010): 68–84. http://dx.doi.org/10.22452/mjcs.vol23no2.1.

Full text

APA, Harvard, Vancouver, ISO, and other styles

24

Khan, Imran Ullah, Asheesh Shah, M. A. Ansari, S. Hasan Saeed, and Kakul Khan. "Rate Control Methods Evaluation and Analysis for H.263 and MPEG-4 Video Codec." Indian Journal of Science and Technology 10, no. 13 (April 1, 2017): 1–7. http://dx.doi.org/10.17485/ijst/2017/v10i13/101882.

Full text

APA, Harvard, Vancouver, ISO, and other styles

25

Saw, Yoo-Sok, Peter M. Grant, John M. Hannah, and Bernard Mulgrew. "Video rate control using a radial basis function estimator for constant bit-rate MPEG coders." Signal Processing: Image Communication 13, no. 3 (September 1998): 183–99. http://dx.doi.org/10.1016/s0923-5965(98)00003-4.

Full text

APA, Harvard, Vancouver, ISO, and other styles

26

Yin, Haibing, Shizhong Li, Honggang Qi, and Hongqi Hu. "A Regular VLSI Architecture of Motion Vector Prediction for Multiple-Standard MPEG-Like Video Codec." Journal of Signal Processing Systems 76, no. 1 (July 5, 2013): 47–62. http://dx.doi.org/10.1007/s11265-013-0808-5.

Full text

APA, Harvard, Vancouver, ISO, and other styles

27

Saw, Y. S., P. M. Grant, and J. M. Hannah. "Rate-distortion analysis of nonlinear quantisers for MPEG video coders: sigmoidal and unimodal quantiser control functions." IEE Proceedings - Vision, Image, and Signal Processing 145, no. 4 (1998): 249. http://dx.doi.org/10.1049/ip-vis:19981918.

Full text

APA, Harvard, Vancouver, ISO, and other styles

28

Hyungjoon Kim, N. Kamaci, and Y. Altunbasak. "Low-complexity rate-distortion optimal macroblock mode selection and motion estimation for MPEG-like video coders." IEEE Transactions on Circuits and Systems for Video Technology 15, no. 7 (July 2005): 823–34. http://dx.doi.org/10.1109/tcsvt.2005.848354.

Full text

APA, Harvard, Vancouver, ISO, and other styles

29

Hatabu, Atsushi, Takashi Miyazaki, and Ichiro Kuroda. "QVGA/CIF Resolution MPEG-4 Video Codec Based on a Low-Power and General-Purpose DSP." Journal of VLSI Signal Processing-Systems for Signal, Image, and Video Technology 39, no. 1/2 (January 2005): 7–14. http://dx.doi.org/10.1023/b:vlsi.0000047268.39953.60.

Full text

APA, Harvard, Vancouver, ISO, and other styles

30

Sharrab, Yousef O., Mohammad Alsmirat, Bilal Hawashin, and Nabil Sarhan. "Machine learning-based energy consumption modeling and comparison of H.264/AVC and google VP8 encoders." International Journal of Electrical and Computer Engineering (IJECE) 11, no. 2 (April 1, 2021): 1303. http://dx.doi.org/10.11591/ijece.v11i2.pp1303-1310.

Full text

Abstract:

Advancement of the prediction models used in a variety of fields is a result of the contribution of machine learning approaches. Utilizing such modeling in feature engineering is exceptionally imperative and required. In this research, we show how to utilize machine learning to save time in research experiments, where we save more than five thousand hours of measuring the energy consumption of encoding recordings. Since measuring the energy consumption has got to be done by humans and since we require more than eleven thousand experiments to cover all the combinations of video sequences, video bit_rate, and video encoding settings, we utilize machine learning to model the energy consumption utilizing linear regression. VP8 codec has been offered by Google as an open video encoder in an effort to replace the popular MPEG-4 Part 10, known as H.264/AVC video encoder standard. This research model energy consumption and describes the major differences between H.264/AVC and VP8 encoders in terms of energy consumption and performance through experiments that are based on machine learning modeling. Twenty-nine raw video sequences are used, offering a wide range of resolutions and contents, with the frame sizes ranging from QCIF(176x144) to 2160p(3840x2160). For fairness in comparison analysis, we use seven settings in VP8 encoder and fifteen types of tuning in H.264/AVC. The settings cover various video qualities. The performance metrics include video qualities, encoding time, and encoding energy consumption.

APA, Harvard, Vancouver, ISO, and other styles

31

Gozálvez, David, David Gómez-Barquero, Thomas Stockhammer, and Michael Luby. "AL-FEC for Improved Mobile Reception of MPEG-2 DVB-T Transport Streams." International Journal of Digital Multimedia Broadcasting 2009 (2009): 1–10. http://dx.doi.org/10.1155/2009/614178.

Full text

Abstract:

We investigate the use of application layer FEC protection in DVB-T (Digital Video Broadcasting-Terrestrial) networks for the provision of mobile services. Mobile reception is characterized by variations of the received signal caused by fast fading and shadowing. DVB-T was originally designed for fixed and portable reception, and generally does not provide enough quality in mobile environments. The link layer protection mechanism MPE-FEC (Multi Protocol Encapsulation-Forward Error Correction) was standardized in DVB-H (Digital Video Broadcasting-Handheld) for the protection of mobile TV services. Although DVB-T itself does not incorporate any link or application layer protection mechanism, AL-FEC (Application layer Forward Error Correction) protection can be introduced in DVB-T in a backwards compatible way. By means of AL-FEC, it is possible to improve the robustness of DVB-T services for the provision of mobile TV. In this paper, we explain the concept of AL-FEC protection in DVB-T and evaluate its performance by means of laboratory measurements and dynamic simulations with shadowing. We study different configurations of AL-FEC and compare its performance with MPE-FEC. In this paper, we discuss some implementation aspects of AL-FEC in real scenarios and propose an implementation based on Raptor codes and hash sequences. We also present results obtained by a first AL-FEC prototype for DVB-T that demonstrates the feasibility of the approach.

APA, Harvard, Vancouver, ISO, and other styles

32

Pickering, Mark R., John F. Arnold, and Michael C. Cavenor. "A VBR rate control algorithm for MPEG-2 video coders with perceptually adaptive quantisation and traffic shaping." Signal Processing: Image Communication 11, no. 1 (November 1997): 1–19. http://dx.doi.org/10.1016/s0923-5965(96)00026-4.

Full text

APA, Harvard, Vancouver, ISO, and other styles

33

Takahashi, M., M. Hamada, T. Nishikawa, H. Arakida, T. Fujita, F. Hatori, S. Mita, et al. "A 60-mW MPEG4 video codec using clustered voltage scaling with variable supply-voltage scheme." IEEE Journal of Solid-State Circuits 33, no. 11 (1998): 1772–80. http://dx.doi.org/10.1109/4.726575.

Full text

APA, Harvard, Vancouver, ISO, and other styles

34

Saponara, Sergio, and Luca Fanucci. "Homogeneous and Heterogeneous MPSoC Architectures with Network-On-Chip Connectivity for Low-Power and Real-Time Multimedia Signal Processing." VLSI Design 2012 (August 14, 2012): 1–17. http://dx.doi.org/10.1155/2012/450302.

Full text

Abstract:

Two multiprocessor system-on-chip (MPSoC) architectures are proposed and compared in the paper with reference to audio and video processing applications. One architecture exploits a homogeneous topology; it consists of 8 identical tiles, each made of a 32-bit RISC core enhanced by a 64-bit DSP coprocessor with local memory. The other MPSoC architecture exploits a heterogeneous-tile topology with on-chip distributed memory resources; the tiles act as application specific processors supporting a different class of algorithms. In both architectures, the multiple tiles are interconnected by a network-on-chip (NoC) infrastructure, through network interfaces and routers, which allows parallel operations of the multiple tiles. The functional performances and the implementation complexity of the NoC-based MPSoC architectures are assessed by synthesis results in submicron CMOS technology. Among the large set of supported algorithms, two case studies are considered: the real-time implementation of an H.264/MPEG AVC video codec and of a low-distortion digital audio amplifier. The heterogeneous architecture ensures a higher power efficiency and a smaller area occupation and is more suited for low-power multimedia processing, such as in mobile devices. The homogeneous scheme allows for a higher flexibility and easier system scalability and is more suited for general-purpose DSP tasks in power-supplied devices.

APA, Harvard, Vancouver, ISO, and other styles

35

Koutsakis, P., S. Psychis, and M. Paterakis. "Integrated Wireless Access for Videoconference From MPEG-4 and H.263 Video Coders With Voice, E-mail, and Web Traffic." IEEE Transactions on Vehicular Technology 54, no. 5 (September 2005): 1863–74. http://dx.doi.org/10.1109/tvt.2005.853460.

Full text

APA, Harvard, Vancouver, ISO, and other styles

36

Ben Amor, Mohamed, Mohamed-Chaker Larabi, Fahmi Kammoun, and Nouri Masmoudi. "A reduced reference video quality assessment of H.264 and mpeg2 codec based on sharpness metric." Journal of the Society for Information Display 24, no. 11 (November 2016): 696–706. http://dx.doi.org/10.1002/jsid.517.

Full text

APA, Harvard, Vancouver, ISO, and other styles

37

Hamamato, Y., M. Taoka, Y. Sugiyama, E. Sugimoto, and T. Urano. "A low-power single-chip MPEG2 (half-D1) video codec LSI for portable consumer-products applications." IEEE Transactions on Consumer Electronics 45, no. 3 (1999): 496–500. http://dx.doi.org/10.1109/30.793532.

Full text

APA, Harvard, Vancouver, ISO, and other styles

38

Mochizuki, Seiji, Tetsuya Shibayama, Masaru Hase, Fumitaka Izuhara, Kazushi Akie, Masaki Nobori, Ren Imaoka, Hiroshi Ueda, Kazuyuki Ishikawa, and Hiromi Watanabe. "A 64 mW High Picture Quality H.264/MPEG-4 Video Codec IP for HD Mobile Applications in 90 nm CMOS." IEEE Journal of Solid-State Circuits 43, no. 11 (November 2008): 2354–62. http://dx.doi.org/10.1109/jssc.2008.2004534.

Full text

APA, Harvard, Vancouver, ISO, and other styles

39

Toyokura, M., H. Kodama, E. Miyagoshi, K. Okamoto, M. Gion, T. Minemaru, A. Ohtani, et al. "A video DSP with a macroblock-level-pipeline and a SIMD type vector-pipeline architecture for MPEG2 CODEC." IEEE Journal of Solid-State Circuits 29, no. 12 (1994): 1474–81. http://dx.doi.org/10.1109/4.340420.

Full text

APA, Harvard, Vancouver, ISO, and other styles

40

Koutsakis, P., and M. Paterakis. "Call-Admission-Control and Traffic- Policing Mechanisms for the Transmission of Videoconference Traffic From MPEG-4 and H.263 Video Coders in Wireless ATM Networks." IEEE Transactions on Vehicular Technology 53, no. 5 (September 2004): 1525–30. http://dx.doi.org/10.1109/tvt.2004.833639.

Full text

APA, Harvard, Vancouver, ISO, and other styles

41

YANG, WOOSEUNG, and CHONG-MIN KYUNG. "CONSCEP: A CONFIGURABLE SoC EMULATION PLATFORM FOR C-BASED FAST PROTOTYPING." Journal of Circuits, Systems and Computers 14, no. 01 (February 2005): 137–57. http://dx.doi.org/10.1142/s0218126605002210.

Full text

Abstract:

FPGA-based emulation, which is now widely used in the design and verification of System-on-a-Chip (SoC), is applicable only when the RTL design for the whole system is available, thus resulting in a long design turn-around time. In this paper, we present a new design flow based on a C-to-hardware IMPLEmentation tool (CIMPLE) and a CONfigurable SoC Emulation Platform (CONSCEP) that emulates the on-chip bus system prior to the RTL design of each SoC component. With the emulation environment set up in the early stage of the design process, the design and verification task of each functional block in the SoC can be performed not only faster, but also more complete as a more complete set of test vectors can be applied before the integration. CONSCEP consists of (1) configurable bus components for the given on-chip bus standard and (2) a set of transactors to link the HDL models of the pre-verified IP blocks with the C models for the behavioral blocks to be designed, or software blocks. CIMPLE translates the C model for a hardware module to a SystemC code, which can be synthesized and directly attached to the CONSCEP as an IP. CIMPLE allows global variables, nested function calls, and simple pointer access, which significantly reduces the code migration. The proposed design flow is demonstrated using a JPEG encoder/decoder system and successfully applied to a commercial MPEG4 video codec chip.

APA, Harvard, Vancouver, ISO, and other styles

42

Joskowicz, Jose, J. Carlos López Ardao, and Rafael Sotelo. "Quantitative Modeling of the Impact of Video Content in the ITU-T G.1070 Video Quality Estimation Function." Informática na educação: teoria & prática 14, no. 2 (May 3, 2012). http://dx.doi.org/10.22456/1982-1654.21825.

Full text

Abstract:

In this paper we present an enhancement to the video quality estimation model described in ITU-T Recommendation G.1070 “Opinion model for video-telephony applications”, in order to include the impact of video content, for different display sizes and codecs. This enhancement provides a much better approximation of the model results with respect to the perceptual MOS values for a wide range of video contents. SAD (Sum of Absolute Differences) is used as an estimation of the video spatial-temporal activity, and is included as a new parameter in the model. The results are based on more than 1500 processed video clips, coded in MPEG-2 and H.264/AVC, in bit rate ranges from 50 kb/s to 12 Mb/s, in SD, VGA, CIF and QCIF display formats.

APA, Harvard, Vancouver, ISO, and other styles

43

NIGAM, RAHUL, ASHISH MISHRA, and AMIT KUMAR DIWAKAR. "Performance evaluation of entropy coding for MPEG-4 video codec." IARJSET, December 20, 2014, 214–16. http://dx.doi.org/10.17148/iarjset.2014.1405.

Full text

APA, Harvard, Vancouver, ISO, and other styles

44

"DNN Based Moth Search Optimization for Video Forgery Detection." International Journal of Engineering and Advanced Technology 9, no. 1 (October 30, 2019): 1190–99. http://dx.doi.org/10.35940/ijeat.a9517.109119.

Full text

Abstract:

Recently, video tampering process becomes easier due to the rapid advancements in user-friendly editing software and multimedia technology (e.g., Mokey by Imagineer Systems, and Photoshop and Premiere by Adobe). This technologies may highly tamper the original videos, so that the audience gets mislead. Nowadays, MPEG-4 codec is included in a large proportions of video cameras and surveillance systems. Therefore the double compression detection process included as an initial step in the video forensic is receiving a high significance. In this paper, the double compression artifacts is detected by adopting the Markov based features, which identifies the interpolated original videos. The double compressed frames are then segmented by introducing an SLIC super pixel segmentation technique. Here, the feature extraction is performed by applying the scale information that is obtained from the multi-scale Gabor filters. The features of this Gabor scale accurately extract the structural features and also reduce too much of redundancy. This extracted features are then provided to DNN (deep neural network) for forgery detection. In this video forensic process, DNN classifier is included for forgery detection. The CNN classifier is included in various existing forgery detection techniques. But, in our work we include DNN because it contains number of hidden layers which provide accurate results for this forgery detection process. To improve the DNN performance, Moth Search Optimization (MSO) algorithm is introduced in this forgery detection technique. Every nook and corner of this world we can able to find the surveillance cameras for security purpose. But, some fraudsters perform forgeries in this recorded videos for their own benefits. To identify this, a lot of forgery detection techniques are coming into existence. So in this work, we introduce the DNN based MSO to perform the forgery detection in videos.This implementation is processed in python simulation platform. The parametric evaluations are taken in terms of F1- Score, average accuracy, Precision, Recall and. Experimental results will provide improved performance in video forgery detection.

APA, Harvard, Vancouver, ISO, and other styles

45

Graziosi, D., O. Nakagami, S. Kuma, A. Zaghetto, T. Suzuki, and A. Tabatabai. "An overview of ongoing point cloud compression standardization activities: video-based (V-PCC) and geometry-based (G-PCC)." APSIPA Transactions on Signal and Information Processing 9 (2020). http://dx.doi.org/10.1017/atsip.2020.12.

Full text

Abstract:

Abstract This article presents an overview of the recent standardization activities for point cloud compression (PCC). A point cloud is a 3D data representation used in diverse applications associated with immersive media including virtual/augmented reality, immersive telepresence, autonomous driving and cultural heritage archival. The international standard body for media compression, also known as the Motion Picture Experts Group (MPEG), is planning to release in 2020 two PCC standard specifications: video-based PCC (V-CC) and geometry-based PCC (G-PCC). V-PCC and G-PCC will be part of the ISO/IEC 23090 series on the coded representation of immersive media content. In this paper, we provide a detailed description of both codec algorithms and their coding performances. Moreover, we will also discuss certain unique aspects of point cloud compression.

APA, Harvard, Vancouver, ISO, and other styles

We offer discounts on all premium plans for authors whose works are included in thematic literature selections. Contact us to get a unique promo code!