Littérature scientifique sur le sujet « Parametric coding »
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Articles de revues sur le sujet "Parametric coding":
Sudaradjat, Djadjat, et Andi Rosano. « Low Bit-Rate Parametric Coding ». Paradigma - Jurnal Komputer dan Informatika 24, no 2 (2 septembre 2022) : 125–29. http://dx.doi.org/10.31294/paradigma.v24i2.1391.
Milova, Julia, et Yuri Melnik. « POLYPARAMETRIC BLOCK CODING ». Informatyka, Automatyka, Pomiary w Gospodarce i Ochronie Środowiska 11, no 1 (31 mars 2021) : 50–53. http://dx.doi.org/10.35784/iapgos.2413.
Jensen, Jesper Rindom, Mads GrÆsbØll Christensen, Morten Holm Jensen, SØren Holdt Jensen et Torben Larsen. « Robust Parametric Audio Coding Using Multiple Description Coding ». IEEE Signal Processing Letters 16, no 12 (décembre 2009) : 1083–86. http://dx.doi.org/10.1109/lsp.2009.2030852.
Christensen, M. G., et S. van de Par. « Efficient parametric coding of transients ». IEEE Transactions on Audio, Speech and Language Processing 14, no 4 (juillet 2006) : 1340–51. http://dx.doi.org/10.1109/tsa.2005.858038.
Yaghoobi, M., L. Daudet et M. E. Davies. « Parametric Dictionary Design for Sparse Coding ». IEEE Transactions on Signal Processing 57, no 12 (décembre 2009) : 4800–4810. http://dx.doi.org/10.1109/tsp.2009.2026610.
Strother, C. M., F. Bender, Y. Deuerling-Zheng, K. Royalty, K. A. Pulfer, J. Baumgart, M. Zellerhoff, B. Aagaard-Kienitz, D. B. Niemann et M. L. Lindstrom. « Parametric Color Coding of Digital Subtraction Angiography ». American Journal of Neuroradiology 31, no 5 (18 février 2010) : 919–24. http://dx.doi.org/10.3174/ajnr.a2020.
Dong, Jie, et King Ngi Ngan. « Parametric Interpolation Filter for HD Video Coding ». IEEE Transactions on Circuits and Systems for Video Technology 20, no 12 (décembre 2010) : 1892–97. http://dx.doi.org/10.1109/tcsvt.2010.2087530.
Raghuvanshi, Nikunj, et John Snyder. « Parametric directional coding for precomputed sound propagation ». ACM Transactions on Graphics 37, no 4 (10 août 2018) : 1–14. http://dx.doi.org/10.1145/3197517.3201339.
Barak, O., M. Tsodyks et R. Romo. « Neuronal Population Coding of Parametric Working Memory ». Journal of Neuroscience 30, no 28 (14 juillet 2010) : 9424–30. http://dx.doi.org/10.1523/jneurosci.1875-10.2010.
Sun, L., et A. Z. Qamhiyah. « Parametric face coding for invariant model representation ». Computer-Aided Design 35, no 6 (mai 2003) : 519–32. http://dx.doi.org/10.1016/s0010-4485(02)00072-6.
Thèses sur le sujet "Parametric coding":
Fatus, Bertrand. « Parametric Coding for Spatial Audio ». Thesis, KTH, MWL Marcus Wallenberg Laboratoriet, 2016. http://urn.kb.se/resolve?urn=urn:nbn:se:kth:diva-198520.
Brown, Allen David Evans. « Parametric spectral analysis using digital signal microprocessors ». Thesis, University of Hertfordshire, 1993. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.387144.
Donnelly, Peter Gerard. « Adaptive parametric modelling of narrowband signals for sonar applications ». Thesis, University of Ulster, 1993. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.357582.
Kelly, Peter Joseph. « An empirical investigation of some parametric techniques for the reductive coding of speech ». Thesis, Queen's University Belfast, 1987. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.356900.
Williams, Mary Moulton. « Radar cross-section data encoding based on parametric spectral estimation techniques ». Thesis, This resource online, 1994. http://scholar.lib.vt.edu/theses/available/etd-06162009-063346/.
Wood, A. R. « Acoustic-phonetic reasoning in computer understanding of speech using frame-based expert knowledge to interpret the 'Speech Sketch' a representation of the acoustic parametric behaviou ». Thesis, Staffordshire University, 1985. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.356461.
Lapierre, Jimmy. « Approches paramétriques pour le codage audio multicanal ». Mémoire, Université de Sherbrooke, 2007. http://savoirs.usherbrooke.ca/handle/11143/1355.
Capobianco, Julien. « Codage audio stéréo avancé ». Thesis, Paris 6, 2015. http://www.theses.fr/2015PA066712/document.
During the last ten years, technics for joint coding exploiting relations and redundancies between channels have been developped in order to further reduce the amount of information needed to represent multichannel audio signals.In this document, we focus on the coding of stereo audio signals where prior informations on the nature of sources in presence, their number or the manner they are spatialized is unknown. Such signals are actually the most representative in commercial records of music industry and in multimedia entertainment in general. To address the coding problematic of these signals, we study parametric and signal approaches, where both of them are often mixed.In this context, three types of approaches are used. The spatial parametric approach reduce the number of audio channels of the signal to encode and recreate the original number of channels from reduced channels and spatial parameters extracted from original channels. The signal approach keep the original number of channels, but encode mono signals, built from the combination of the original ones and containing less redundancies. Finally, the hybrid approach introduced in the MPEG USAC standard keep the two channels of a stereo signal, but one is a mono downmix and the other is a residual signal, resulting from a prediction on the downmix, where prediction parameters are encoded as side information.In this document, we first analyse the characteristics of a stereo audio signal coming from a commercial recording and the associated production techniques. This study lead us to consider the relations between the emitter parametric models, elaborated from our analysis of commercial recording production techniques, and the receiver models which are the basis of spatial parametric coding. In the light of these considerations, we present and study the three approaches mentioned earlier. For the parametric approach, we show that transparency cannot be achieved for most of the stereo audio signals, we have a reflection on parametric representations and we propose techniques to improve the audio quality and further reduce the bitrate of their parameters. These improvements are obtained by applying a better segmentation on the signal, based on the significant transient, by exploiting perceptive characteristics of some spatial cues and by adapting the estimation of spatial cues. As the hybrid approach has been recently standardized in MPEG USAC, we propose a full review of it, then we develop a new coding technique to optimize the allocation of the residual bands when the residual is not used on the whole bandwidth of the signal to encode. In the conclusion, we discuss about the future of the general spatial audio coding and we show the importance of developping new technics of segmentation and classification for audio signals to further adapt the coding to the content of the signal
Tano, Richard. « Determining multimediastreaming content ». Thesis, Umeå universitet, Institutionen för fysik, 2011. http://urn.kb.se/resolve?urn=urn:nbn:se:umu:diva-50376.
Detta examensarbete skrevs av Richard Tano student på Umeå universitet åt Ericsson Luleå. Övervakning av nätets prestanda är av yttersta vikt för nätverksleverantörer. Detta görs med modeller för att utvärdera QoS (Quality of Service) som överensstämmer med ITU-T rekommendationer. Vid bestämning av kvaliten på videoströmmar är det mer meningsfullt att utvärdera QoE (Quality of Experience) för att få insikt i hur användaren uppfattar kvaliten. Detta graderas i värden av MOS (Mean opinion score). En viktig aspekt för att bestämma QoE är typen av videoinnehåll, vilket är korrelerat till videons kodningskomplexitet och MOS värden. I detta arbete undersöktes möjligheterna att förbättra kvalitetsuppskattningsmodellerna under uppfyllande av ITU-T studygroup 12 (q.14). Metoder undersöktes och en algoritm utvecklades som använder tidsserieanalys av paketstatistik för uppskattning av videoströmmars MOS-värden. Metoder som ingår i algoritmen är en nyutvecklad frekventa mönster metod tillsammans med regressions analys. En modell som använder algoritmen från låg till hög bithastighet definierades. Den nya modellen gav omkring 20% förbättrad precision i uppskattning av MOS-värden jämfört med existerande referensmodell. Även en algoritm som enbart använder regressionsstatistik och modellerande av statistiska parametrar utvecklades. Denna algoritm levererade jämförbara resultat med föregående algoritm men gav även kraftigt förbättrad effektivitet.
Mahé, Pierre. « Codage ambisonique pour les communications immersives ». Thesis, La Rochelle, 2022. http://www.theses.fr/2022LAROS011.
This thesis takes place in the context of the spread of immersive content. For the last couple of years, immersive audio recording and playback technologies have gained momentum and have become more and more popular. New codecs are needed to handle those spatial audio formats, especially for communication applications. There are several ways to represent spatial audio scenes. In this thesis, we focused on First Order Ambisonic. The first part of our research focused on improving multi-monocoding by decorrelated each ambisonic signal component before the multi-mono coding. To guarantee signal continuity between frames, efficient quantization new mechanisms are proposed. In the second part of this thesis, we proposed a new coding concept using a power map to recreate the original spatial image. With this concept, we proposed two compressing methods. The first one is a post-processing focused on limiting the spatial distortion of the decoded signal. The spatial correction is based on the difference between the original and the decoded spatial image. This post-processing is later extended to a parametric coding method. The last part of this thesis presents a more exploratory method. This method studied audio signal compression by neural networks inspired by image compression models using variational autoencoders
Livres sur le sujet "Parametric coding":
Cantrell, Bradley, et Adam Mekies. Codify : Parametric and Computational Design in Landscape Architecture. Taylor & Francis Group, 2018.
Chapitres de livres sur le sujet "Parametric coding":
Keiser, Bernhard E., et Eugene Strange. « Parametric and Hybrid Coding ». Dans Digital Telephony and Network Integration, 84–110. Boston, MA : Springer US, 1995. http://dx.doi.org/10.1007/978-1-4615-1787-0_4.
Politis, Archontis, et Ville Pulkki. « Higher-Order Directional Audio Coding ». Dans Parametric Time-Frequency Domain Spatial Audio, 141–59. Chichester, UK : John Wiley & Sons, Ltd, 2017. http://dx.doi.org/10.1002/9781119252634.ch6.
Pulkki, Ville, Archontis Politis, Mikko-Ville Laitinen, Juha Vilkamo et Jukka Ahonen. « First-Order Directional Audio Coding (DirAC) ». Dans Parametric Time-Frequency Domain Spatial Audio, 89–140. Chichester, UK : John Wiley & Sons, Ltd, 2017. http://dx.doi.org/10.1002/9781119252634.ch5.
Baudoin, G., P. Jardin, J. Gross et G. Chollet. « Comparison of Parametric Spectral Representations for Voice Recognition in Noisy Environments ». Dans Speech Recognition and Coding, 313–16. Berlin, Heidelberg : Springer Berlin Heidelberg, 1995. http://dx.doi.org/10.1007/978-3-642-57745-1_45.
Reimer, Jacob, et Nicholas G. Hatsopoulos. « The Problem of Parametric Neural Coding in the Motor System ». Dans Advances in Experimental Medicine and Biology, 243–59. Boston, MA : Springer US, 2009. http://dx.doi.org/10.1007/978-0-387-77064-2_12.
Lenarczyk, Michał. « Parametric Speech Coding Framework for Voice Conversion Based on Mixed Excitation Model ». Dans Text, Speech and Dialogue, 507–14. Cham : Springer International Publishing, 2014. http://dx.doi.org/10.1007/978-3-319-10816-2_61.
Ábrego, Gustavo Hernández, Enric Monte et José B. Mariño. « Non parametric coding of speech by means of a MLP with hints ». Dans Biological and Artificial Computation : From Neuroscience to Technology, 1068–74. Berlin, Heidelberg : Springer Berlin Heidelberg, 1997. http://dx.doi.org/10.1007/bfb0032566.
Disch, Sascha, et Achim Kuntz. « A Dedicated Decorrelator for Parametric Spatial Coding of Applause-like Audio Signals ». Dans Microelectronic Systems, 363–71. Berlin, Heidelberg : Springer Berlin Heidelberg, 2011. http://dx.doi.org/10.1007/978-3-642-23071-4_34.
Fletcher, David. « The parametric park ». Dans Codify, 71–76. Milton Park, Abingdon, Oxon ; New York, NY : Routledge, 2018. : Routledge, 2018. http://dx.doi.org/10.4324/9781315647791-7.
« Re-Coding Homes ». Dans Advances in Civil and Industrial Engineering, 1–19. IGI Global, 2020. http://dx.doi.org/10.4018/978-1-5225-8958-7.ch001.
Actes de conférences sur le sujet "Parametric coding":
Ojala, Pasi, Mikko Tammi et Miikka Vilermo. « Parametric binaural audio coding ». Dans 2010 IEEE International Conference on Acoustics, Speech and Signal Processing. IEEE, 2010. http://dx.doi.org/10.1109/icassp.2010.5495804.
Tok, M., A. Glantz, A. Krutz et T. Sikora. « Parametric motion vector prediction for hybrid video coding ». Dans 2012 Picture Coding Symposium (PCS). IEEE, 2012. http://dx.doi.org/10.1109/pcs.2012.6213369.
Tok, M., A. Krutz, A. Glantz et T. Sikora. « Lossy parametric motion model compression for global motion temporal filtering ». Dans 2012 Picture Coding Symposium (PCS). IEEE, 2012. http://dx.doi.org/10.1109/pcs.2012.6213354.
Thakur, Uday Singh, et Bappaditya Ray. « Image coding using parametric texture synthesis ». Dans 2016 IEEE 18th International Workshop on Multimedia Signal Processing (MMSP). IEEE, 2016. http://dx.doi.org/10.1109/mmsp.2016.7813339.
Suresh, K., et R. Akhil Raj. « MDCT domain parametric stereo audio coding ». Dans 2012 International Conference on Signal Processing and Communications (SPCOM). IEEE, 2012. http://dx.doi.org/10.1109/spcom.2012.6290038.
Mudugamuwa, Damith J., et Alan B. Bradley. « Adaptive transformation for segmented parametric speech coding ». Dans 5th International Conference on Spoken Language Processing (ICSLP 1998). ISCA : ISCA, 1998. http://dx.doi.org/10.21437/icslp.1998-377.
Teixeira de Jesus, Luis Miguel, et Gavin C. Cawley. « Speech coding and synthesis using parametric curves ». Dans 5th European Conference on Speech Communication and Technology (Eurospeech 1997). ISCA : ISCA, 1997. http://dx.doi.org/10.21437/eurospeech.1997-218.
Gamito, Manuel N., et Miguel S. Dias. « JPEG 2000 coding of textured parametric surfaces ». Dans Electronic Imaging 2004, sous la direction de Sethuraman Panchanathan et Bhaskaran Vasudev. SPIE, 2004. http://dx.doi.org/10.1117/12.526643.
Patlayenko, Mikola. « Adaptive Fractal Coding UHD Images with Parametric Algorithm ». Dans 2018 International Scientific-Practical Conference Problems of Infocommunications. Science and Technology (PIC S&T). IEEE, 2018. http://dx.doi.org/10.1109/infocommst.2018.8632137.
Viveros-Cancino, Oscar, et Boris Escalante-Ramirez. « Parametric image coding by means of polynomial transforms ». Dans Electronic Imaging '97, sous la direction de Jan Biemond et Edward J. Delp III. SPIE, 1997. http://dx.doi.org/10.1117/12.263298.