Výsledky vyhledávání - "Video coder"

Model-Based Transrating of H.264 Coded Video Autor Hait, N., Malah, D.

“… In works related to previous standards, optimal requantization step sizes were obtained via Lagrangian optimization that minimizes the distortion subject to a rate constraint. Due to H…”
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Video quality assessment of H.264 spatial scalable video coder Autor Hendrawan, Mahadhika, I.

“…H.2646/Scalable Video Coding is the extension of H.264/Advanced Video Coding standard with higher coding efficiency. One of the video coding software having…”
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A 3D lifting based motion compensation augmented video coder Autor Telceken, Sedat, Gorgulu, Sukru, Gerek, Omer Nezih

“… The temporal correlation of consecutive frames causes temporal redundancies, which are subject to lifting-like motion predictive compression…”
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Global Rate-distortion Optimization of Video-based Point Cloud Compression with Differential Evolution Autor Yuan, Hui, Hamzaoui, Raouf, Neri, Ferrante, Yang, Shengxiang, Wang, Tingting

“… Then, the two videos are compressed independently using a state-of-the-art video coder. In the Moving Picture Experts Group (MPEG…”
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Motion vector forecast and mapping (MV-FMap) method for entropy coding based video coders Autor Le Tanou, Julien, Thiesse, Jean-Marc, Jung, Joel, Antonini, Marc

“… Thus, the bit rate reduction of this information becomes a key subject of research. This paper proposes a method for motion vector coding based on an adaptive redistribution of motion vector residuals before entropy coding…”
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Adaptive Unicast Video Streaming With Rateless Codes and Feedback Autor Ahmad, S., Hamzaoui, R., Al-Akaidi, M.

“…Video streaming over the Internet and packet-based wireless networks is sensitive to packet loss, which can severely damage the quality of the received video…”
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An efficient optimisation scheme for scalable surveillance centric video communications Autor Ramzan, Naeem, Zgaljic, Toni, Izquierdo, Ebroul

“…State-of-the-art coders have been optimised over years according to the needs of the broadcasting industry. There are however key applications of coding…”
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Live Coding the Communication Complexity Scale: Validation of a Clinically Relevant Observation Tool Autor Mancini, Jordana

“… Children were administered a 30-minute, scripted play-based assessment which used “sabotaged” games or toys to promote communication of the research subjects…”
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Rate control for VBR video over ATM: simplification and implementation Autor Yan Yang, Hemami, S.S.

“…Rate control is essential to ensure high-quality video transmission over asynchronous transfer mode (ATM) networks; both source and channel rates must not…”
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Unequal error protection of embedded video bitstream with optimized FEC Autor Khan, Mohd Ayyub, Moinuddin, Athar Ali, Khan, Ekram

“…) for transmission of embedded video bitstream over AWGN channel is investigated. The scheme exploits the non-uniform importance and error sensitivity of the bits generated by the a wavelet video coder…”
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Adaptive error resilient video transmission over wide-band CDMA networks Autor Chuxiang Li, Jianhua Lu, Letaief, K.B.

“… The video coder is based on MPEG4 coding standard, while the transmission system is subject to a joint design of quantization, spreading, channel coding, as well as, an effective error concealment…”
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Adaptive subband video coding in a rate-distortion-constrained framework Autor Chung, Wilson Ching-Lun

“…This thesis addresses the problem of subband video coding and is primarily motivated by potential applications of subband coding in future generations of video…”
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Dependent R-D modeling for H.264/SVC bit allocation Autor Cho, Yongjin

“…In this research, we investigate model-based bit allocation algorithms for H.264/SVC, which is newly standardized as a scalable extension of H.264/AVC. Despite…”
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Human–Robot Interaction in Autism Treatment: A Case Study on Three Pairs of Autistic Children as Twins, Siblings, and Classmates Autor Taheri, Alireza, Meghdari, Ali, Alemi, Minoo, Pouretemad, Hamidreza

“…In this paper, three pairs of children with autism include a pair of twins, two siblings, and two classmates were enrolled in a 12-session robot-assisted…”
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Rate Control Scheme Based on Cauchy R-D Optimization Model for H.264/AVC under Low Delay Constraint Autor Eiamjumrus, N., Aramvith, S.

“…264 for low delay constraint. One solution which has been proposed in this paper use the Lagrange Multiplier technique as the cost function to find rate and distortion model subject to target bit rate constraint resulting…”
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Rate control in DCT video coding for low-delay communications Autor Ribas-Corbera, J, Lei, Shawmin

“… the values of the quantization parameters in typical discrete cosine transform video coders. To do this, we derive models for bit rate and distortion in this type of coders, in terms…”
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Transient queueing analysis and performance of packet video systems Autor Lee, Duan-Shin

“… The study covers the design of a video coder to cope with packet loss as well as the transient queueing analysis of packet loss in a statistical multiplexer…”
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Packet video transmission over wireless channels with adaptive channel rate allocation Autor Kung, Wei-Ying, Kim, Chang-Su, Kuo, C.-C. Jay

“… To this end, we develop a simple rate-distortion model for general video coders using DCT and motion compensation, so that the rate and the distortion can be estimated without an expensive encoding procedure…”
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Video coding using a self-adaptive redundant dictionary consisting of spatial and temporal prediction candidates Autor Yuanyi Xue, Yao Wang

“…All standard video coders are based on the prediction plus transform representation of an image block, which predicts the current block using various intra- and inter-prediction modes…”
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A space domain approach for multiple description video coding Autor Franchi, N., Fumagalli, M., Lancini, R., Tubaro, S.

“… For this reason this paper proposes two architectures of MD video coders. The first, called DC-MDVC, is based on the classical MD video codec architecture and the principle…”
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