Literatura académica sobre el tema "Encoded video stream"

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Artículos de revistas sobre el tema "Encoded video stream"

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Al-Tamimi, Abdel-Karim, Raj Jain, and Chakchai So-In. "High-Definition Video Streams Analysis, Modeling, and Prediction." Advances in Multimedia 2012 (2012): 1–13. http://dx.doi.org/10.1155/2012/539396.

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High-definition video streams' unique statistical characteristics and their high bandwidth requirements are considered to be a challenge in both network scheduling and resource allocation fields. In this paper, we introduce an innovative way to model and predict high-definition (HD) video traces encoded with H.264/AVC encoding standard. Our results are based on our compilation of over 50 HD video traces. We show that our model, simplified seasonal ARIMA (SAM), provides an accurate representation for HD videos, and it provides significant improvements in prediction accuracy. Such accuracy is vi
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Reljin, Irini, and Branimir Reljin. "Fractal and multifractal analyses of compressed video sequences." Facta universitatis - series: Electronics and Energetics 16, no. 3 (2003): 401–14. http://dx.doi.org/10.2298/fuee0303401r.

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The paper considers compressed video streams from the fractal and multifractal (MF) points of view. Video traces in H.263 and MPEG-4 formats generated at the Technical University Berlin and publicly available, were investigated. It was shown that all compressed videos exhibit fractal (long-range dependency) nature and that higher compression ratios provoke more variability of the encoded video stream. This conclusion is approved from the MF spectra of frame size video traces. By analyzing individual frames and their MF spectra the additive nature is approved.
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Grois, Dan, Evgeny Kaminsky, and Ofer Hadar. "Efficient Real-Time Video-in-Video Insertion into a Pre-Encoded Video Stream." ISRN Signal Processing 2011 (February 14, 2011): 1–11. http://dx.doi.org/10.5402/2011/975462.

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This work relates to the developing and implementing of an efficient method and system for the fast real-time Video-in-Video (ViV) insertion, thereby enabling efficiently inserting a video sequence into a predefined location within a pre-encoded video stream. The proposed method and system are based on dividing the video insertion process into two steps. The first step (i.e., the Video-in-Video Constrained Format (ViVCF) encoder) includes the modification of the conventional H.264/AVC video encoder to support the visual content insertion Constrained Format (CF), including generation of isolate
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Stankowski, Jakub, Damian Karwowski, Tomasz Grajek, et al. "Analysis of Compressed Data Stream Content in HEVC Video Encoder." International Journal of Electronics and Telecommunications 61, no. 2 (2015): 121–27. http://dx.doi.org/10.1515/eletel-2015-0015.

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Abstract In this paper, a detailed analysis of the content of the bitstream, produced by the HEVC video encoder is presented. With the use of the HM 10.0 reference software the following statistics were investigated: 1) the amount of data in the encoded stream related to individual frame types, 2) the relationship between the value of the QP and the size of the bitstream at the output of the encoder, 3) contribution of individual types of data to I and B frames. The above mentioned aspects have been thoroughly explored for a wide range of target bitrates. The obtained results became the basis
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Camalapuram Subramanyam, Swarnalatha, Ansuman Bhattacharya, and Koushik Sinha. "Secure and Efficient Video Management: A Novel Framework for CCTV Surveillance Systems." IoT 6, no. 3 (2025): 38. https://doi.org/10.3390/iot6030038.

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This paper presents a novel video encoding and decoding method aimed at enhancing security and reducing storage requirements, particularly for CCTV systems. The technique merges two video streams of matching frame dimensions into a single stream, optimizing disk space usage without compromising video quality. The combined video is secured using an advanced encryption standard (AES)-based shift algorithm that rearranges pixel positions, preventing unauthorized access. During decoding, the AES shift is reversed, enabling precise reconstruction of the original videos. This approach provides a spa
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Politis, Ilias, Michail Tsagkaropoulos, Thomas Pliakas, and Tasos Dagiuklas. "Distortion Optimized Packet Scheduling and Prioritization of Multiple Video Streams over 802.11e Networks." Advances in Multimedia 2007 (2007): 1–11. http://dx.doi.org/10.1155/2007/76846.

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This paper presents a generic framework solution for minimizing video distortion of all multiple video streams transmitted over 802.11e wireless networks, including intelligent packet scheduling and channel access differentiation mechanisms. A distortion prediction model designed to capture the multireferenced frame coding characteristic of H.264/AVC encoded videos is used to predetermine the distortion importance of each video packet in all streams. Two intelligent scheduling algorithms are proposed: the “even-loss distribution,” where each video sender is experiencing the same loss and the “
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Yang, Fu Zheng, Jia Run Song, and Shu Ai Wan. "A No-Reference Quality Assessment System for Video Streaming over RTP." Advanced Materials Research 179-180 (January 2011): 243–48. http://dx.doi.org/10.4028/www.scientific.net/amr.179-180.243.

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In the paper a no-reference system for quality assessment of video streaming over RTP is proposed for monitoring the quality of networked video. The proposed system is composed of four modules, where the quality assessment module utilizes information extracted from the bit-stream by the modules of RTP header analysis, frame header analysis and display buffer simulation. Taking MPEG-4 encoded video stream over RTP as an example, the process of video quality assessment using the proposed system is described in this paper. The proposed system is featured by its high efficiency without sorting to
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Wang, Ke, Xuejing Li, Jianhua Yang, Jun Wu, and Ruifeng Li. "Temporal action detection based on two-stream You Only Look Once network for elderly care service robot." International Journal of Advanced Robotic Systems 18, no. 4 (2021): 172988142110383. http://dx.doi.org/10.1177/17298814211038342.

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Human action segmentation and recognition from the continuous untrimmed sensor data stream is a challenging issue known as temporal action detection. This article provides a two-stream You Only Look Once-based network method, which fuses video and skeleton streams captured by a Kinect sensor, and our data encoding method is used to turn the spatiotemporal temporal action detection into a one-dimensional object detection problem in constantly augmented feature space. The proposed approach extracts spatial–temporal three-dimensional convolutional neural network features from video stream and vie
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Hamza, Ahmed M., Mohamed Abdelazim, Abdelrahman Abdelazim, and Djamel Ait-Boudaoud. "HEVC Rate-Distortion Optimization with Source Modeling." Electronic Imaging 2021, no. 10 (2021): 259–1. http://dx.doi.org/10.2352/issn.2470-1173.2021.10.ipas-259.

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The Rate-Distortion adaptive mechanisms of MPEG-HEVC (High Efficiency Video Coding) and its derivatives are an incremental improvement in the software reference encoder, providing a selective Lagrangian parameter choice which varies by encoding mode (intra or inter) and picture reference level. Since this weighting factor (and the balanced cost functions it impacts) are crucial to the RD optimization process, affecting several encoder decisions and both coding efficiency and quality of the encoded stream, we investigate an improvement by modern reinforcement learning methods. We develop a neur
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Mohammed, Dhrgham Hani, and Laith Ali Abdul-Rahaim. "A Proposed of Multimedia Compression System Using Three - Dimensional Transformation." Webology 18, SI05 (2021): 816–31. http://dx.doi.org/10.14704/web/v18si05/web18264.

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Video compression has become especially important nowadays with the increase of data transmitted over transmission channels, the reducing the size of the videos must be done without affecting the quality of the video. This process is done by cutting the video thread into frames of specific lengths and converting them into a three-dimensional matrix. The proposed compression scheme uses the traditional red-green-blue color space representation and applies a three-dimensional discrete Fourier transform (3D-DFT) or three-dimensional discrete wavelet transform (3D-DWT) to the signal matrix after c
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Tesis sobre el tema "Encoded video stream"

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Allouche, Mohamed. "Video tracking for marketing applications." Electronic Thesis or Diss., Institut polytechnique de Paris, 2024. http://www.theses.fr/2024IPPAS033.

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Au cours des dernières décennies, la production et la consommation de vidéos ont considérablement augmenté et il est communément admis que 80 % du trafic Internet est constitué de vidéos. Dans ce cadre, les vidéos de marketing sont encore dominées par le contenu payant (c'est-à-dire le contenu créé par l'annonceur qui paie un annonceur pour distribuer ce contenu). Cependant, le contenu vidéo organique progresse lentement mais sûrement. Le terme « contenu organique » fait référence à un contenu dont la création et/ou la distribution n'est pas payante. Dans la plupart des cas, il s'agit d'un con
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Hu, Wan-Hsun, and 胡萬勳. "A Modified H.264 Encoder to Stream Video for Narrowband Networks." Thesis, 2009. http://ndltd.ncl.edu.tw/handle/46330012096890207087.

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碩士<br>國立臺灣大學<br>資訊工程學研究所<br>97<br>Public and home safeties are important in human life. For the sake of security, it is necessary to have as many monitors of the surveillance system as possible to monitor specific regions. However, there is usually not sufficient bandwidth of networks to return all video streams, especially in narrowband networks. To solve this issue, we propose a modified H.264 encoder, which uses little bandwidth to transfer more video streams as possible. The key concept is to compress all input video streams into one. Because we just know what happens in specific regions,
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Capítulos de libros sobre el tema "Encoded video stream"

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Zhu, Kanghua, Yongfang Wang, Jian Wu, Yun Zhu, and Wei Zhang. "Content Oriented Video Quality Prediction for HEVC Encoded Stream." In Communications in Computer and Information Science. Springer Singapore, 2017. http://dx.doi.org/10.1007/978-981-10-4211-9_33.

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Salama, Paul, Ness B. Shroff, and Edward J. Delp. "Error Concealment in Encoded Video Streams." In Signal Recovery Techniques for Image and Video Compression and Transmission. Springer US, 1998. http://dx.doi.org/10.1007/978-1-4757-6514-4_7.

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Yu, Tong, and Nicolas Padoy. "Encode the Unseen: Predictive Video Hashing for Scalable Mid-stream Retrieval." In Computer Vision – ACCV 2020. Springer International Publishing, 2021. http://dx.doi.org/10.1007/978-3-030-69541-5_26.

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Abbate, Maurizio, Ciro D’Elia, and Paola Mariano. "A Low Complexity Motion Segmentation Based on Semantic Representation of Encoded Video Streams." In Image Analysis and Processing – ICIAP 2011. Springer Berlin Heidelberg, 2011. http://dx.doi.org/10.1007/978-3-642-24088-1_22.

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Lal, Chhagan, Vijay Laxmi, and M. S. Gaur. "A Rate Adaptation Scheme to Support QoS for H.264/SVC Encoded Video Streams over MANETs." In Advanced Communication and Networking. Springer Berlin Heidelberg, 2011. http://dx.doi.org/10.1007/978-3-642-23312-8_11.

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"Encoded Output Delivered as a Bit Stream,." In A Practical Guide to Video and Audio Compression. Routledge, 2005. http://dx.doi.org/10.4324/9780080488066-19.

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Cycon, H. "Mobile Serverless Video Communication." In Encyclopedia of Mobile Computing and Commerce. IGI Global, 2007. http://dx.doi.org/10.4018/978-1-59904-002-8.ch098.

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The main new feature, scalability, addresses schemes for delivery of video to diverse clients over heterogeneous networks, particularly in scenarios where the downstream conditions are not known in advance. The basic idea is that one encoded stream can serve networks with varying bandwidths or clients with different display resolutions or systems with different storage resources, which is an obvious advantage in heterogeneous networks prevalent in mobile applications.
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Lawrence, Linju, and R. Shreelekshmi. "Chained Digital Signature for the Improved Video Integrity Verification." In Frontiers in Artificial Intelligence and Applications. IOS Press, 2021. http://dx.doi.org/10.3233/faia210284.

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The recorded videos from the surveillance cameras can be used as potential evidence in forensic applications. These videos can be easily manipulated or tampered with video editing tools without leaving visible clues. Hence integrity verification is essential before using the videos as evidence. Existing methods mostly depend on the analysis of video data stream and video container for tampering detection. This paper discusses an active video integrity verification method using Elliptic Curve Cryptography and blockchain. The method uses Elliptic Curve Digital Signature Algorithm for calculating
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Fleury, Martin, and Laith Al-Jobouri. "Techniques and Tools for Adaptive Video Streaming." In Intelligent Multimedia Technologies for Networking Applications. IGI Global, 2013. http://dx.doi.org/10.4018/978-1-4666-2833-5.ch004.

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Adaptive video streaming is becoming increasingly necessary as quality expectations rise, while congestion persists and the extension of the Internet to mobile access creates new sources of packet loss. This chapter considers several techniques for adaptive video streaming including live HTTP streaming, bitrate transcoding, scalable video coding, and rate controllers. It also includes additional case studies of congestion control over the wired Internet using fuzzy logic, statistical multiplexing to adapt constant bitrate streams to the bandwidth capacity, and adaptive error correction for the
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Koumaras, Harilaos, Charalampos Skianis, and Anastasios Kourtis. "Analysis and Modeling of H.264 Unconstrained VBR Video Traffic." In Innovations in Mobile Multimedia Communications and Applications. IGI Global, 2011. http://dx.doi.org/10.4018/978-1-60960-563-6.ch016.

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In future communication networks, video is expected to represent a large portion of the total traffic, given that especially variable bit rate (VBR) coded video streams, are becoming increasingly popular. Consequently, traffic modeling and characterization of such video services is essential for the efficient traffic control and resource management. Besides, providing an insight of video coding mechanisms, traffic models can be used as a tool for the allocation of network resources, the design of efficient networks for streaming services and the reassurance of specific QoS characteristics to t
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Actas de conferencias sobre el tema "Encoded video stream"

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Grzelka, Adam, Adrian Dziembowski, Dawid Mieloch, and Marek Domański. "The Study of the Video Encoder Efficiency in Decoder-side Depth Estimation Applications." In WSCG'2022 - 30. International Conference in Central Europe on Computer Graphics, Visualization and Computer Vision'2022. Západočeská univerzita, 2022. http://dx.doi.org/10.24132/csrn.3201.31.

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The paper presents a study of a lossy compression impact on depth estimation and virtual view quality. Two scenarios were considered: the approach based on ISO/IEC 23090-12 coder-agnostic MPEG Immersive video standard, and the more general approach based on simulcast video coding. The commonly used compression techniques were tested: VVC (MPEG-I Part 3 / H.266), HEVC (MPEG H part 2 / H.265), AVC (MPEG 4 part 10 / H.264), MPEG-2 (MPEG 2 part 2 / H.262), AV1 (AOMedia Video 1), VP9 (AOMedia VP9). The quality of virtual views generated from the encoded stream was assessed by the IV-PSNR metric whi
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Kaminsky, Evgeny, Dan Grois, and Ofer Hadar. "Efficient real-time Video-in-Video insertion into a pre-encoded video stream for the H.264/AVC." In 2010 IEEE International Conference on Imaging Systems and Techniques (IST). IEEE, 2010. http://dx.doi.org/10.1109/ist.2010.5548511.

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Meddeb, Marwa, Marco Cagnazzo, and Beatrice Pesquet-Popescu. "ROI-based rate control using tiles for an HEVC encoded video stream over a lossy network." In 2015 IEEE International Conference on Image Processing (ICIP). IEEE, 2015. http://dx.doi.org/10.1109/icip.2015.7351028.

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Mu, Mu, Roswitha Gostner, Andreas Mauthe, Gareth Tyson, and Francisco Garcia. "Visibility of individual packet loss on H.264 encoded video stream: a user study on the impact of packet loss on perceived video quality." In IS&T/SPIE Electronic Imaging, edited by Reza Rejaie and Ketan D. Mayer-Patel. SPIE, 2009. http://dx.doi.org/10.1117/12.815538.

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Razavi, R., M. Fleury, and M. Ghanbari. "Unequal protection of encoded video streams in bluetooth EDR." In Packet Video 2007. IEEE, 2007. http://dx.doi.org/10.1109/packet.2007.4397049.

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Antsiferova, Anastasia, Alexander Yakovenko, Nickolay Safonov, Dmitriy Kulikov, Alexander Gushin, and Dmitriy Vatolin. "Applying Objective Quality Metrics to Video-Codec Comparisons: Choosing the Best Metric for Subjective Quality Estimation." In 31th International Conference on Computer Graphics and Vision. Keldysh Institute of Applied Mathematics, 2021. http://dx.doi.org/10.20948/graphicon-2021-3027-199-210.

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Quality assessment is essential to creating and comparing video compression algorithms. Despite the development of many new quality-assessment methods, well-known and generally accepted codecs comparisons mainly employ classical methods such as PSNR, SSIM, and VMAF. These methods have different variations: temporal pooling techniques, color-component summations and versions. In this paper, we present comparison results for generally accepted video-quality metrics to determine which ones are most relevant to video codecs comparisons. For evaluation we used videos compressed by codecs of differe
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Rehbein, Gustavo, Eduardo Costa, Guilherme Corrêa, Cristiano Santos, and Marcelo Porto. "A Machine-Learning-Driven Fast Video-based Point Cloud Compression (V-PCC)." In Proceedings of the Brazilian Symposium on Multimedia and the Web. Sociedade Brasileira de Computação - SBC, 2024. http://dx.doi.org/10.5753/webmedia.2024.242069.

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In recent years, 3D point cloud content has gained attention due to its application possibilities, such as multimedia systems, virtual, augmented, and mixed reality, through the mapping and visualization of environments and/or 3D objects, real-time immersive communications, and autonomous driving systems. However, raw point clouds demand a large amount of data for their representation, and compression is mandatory to allow efficient transmission and storage. The MPEG group proposed the Video-based Point Cloud Compression (V-PCC) standard, which is a dynamic point cloud encoder based on the use
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Xin, Jun, Ming-Ting Sun, and Kangwook Chun. "Bit-allocation for transcoding pre-encoded video streams." In Electronic Imaging 2002, edited by C. C. Jay Kuo. SPIE, 2002. http://dx.doi.org/10.1117/12.453054.

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Cen, Nan, Zhangyu Guan, and Tommaso Melodia. "Joint decoding of independently encoded compressive multi-view video streams." In 2013 Picture Coding Symposium (PCS). IEEE, 2013. http://dx.doi.org/10.1109/pcs.2013.6737753.

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Hong Zhou, Jingli Zhou, and Xiaojian Xia. "The motion vector reuse algorithm to improve dual-stream video encoder." In 2008 9th International Conference on Signal Processing (ICSP 2008). IEEE, 2008. http://dx.doi.org/10.1109/icosp.2008.4697366.

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Informes sobre el tema "Encoded video stream"

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Chen, Yongzhou, Ammar Tahir, and Radhika Mittal. Controlling Congestion via In-Network Content Adaptation. Illinois Center for Transportation, 2022. http://dx.doi.org/10.36501/0197-9191/22-018.

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Realizing that it is inherently difficult to match precisely the sending rates at the endhost with the available capacity on dynamic cellular links, we built a system, Octopus, that sends real-time data streams over cellular networks using an imprecise controller (that errs on the side of overestimating network capacity) and then drops appropriate packets in the cellular-network buffers to match the actual capacity. We designed parameterized primitives for implementing the packet-dropping logic, which the applications at the endhost can configure differently to express various content-adaptati
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