The original paper is in English. Non-English content has been machine-translated and may contain typographical errors or mistranslations. ex. Some numerals are expressed as "XNUMX".
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The original paper is in English. Non-English content has been machine-translated and may contain typographical errors or mistranslations. Copyrights notice
Dans cet article, nous proposons une méthode de contrôle adaptatif de la fréquence d'images vidéo, appelée AFCON, que les encodeurs vidéo utilisent en conjonction avec un contrôle explicite de la congestion basé sur le débit dans le réseau. Premièrement, une contrainte de tampon d'encodeur qui garantit le retard de bout en bout des trames vidéo est dérivée sous l'hypothèse d'un retard de transmission réseau limité pour chaque donnée de trame. AFCON est basé sur la contrainte et comprend la prédiction du débit de canal futur, la suppression de trames et le saut de trames. Les moindres carrés récursifs (RLS) sont utilisés pour prédire la composante basse fréquence du débit du canal. La suppression de trames empêche la violation du délai des trames due à l'erreur de prédiction du débit du canal. Le saut de trame adapte le débit de sortie du codeur au débit du canal tout en évitant une dégradation brusque de la qualité pendant la période de congestion. Les résultats de la simulation montrent qu'AFCON peut s'adapter au canal à débit variable dans le temps avec moins de dégradation de la résolution temporelle et des performances PSNR par rapport à l'approche conventionnelle.
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Myeong-jin LEE, Jae-kyoon KIM, "Adaptive Video Frame Rate Control over Explicit Rate Networks Based on Channel Rate Prediction" in IEICE TRANSACTIONS on Communications,
vol. E84-B, no. 7, pp. 1915-1925, July 2001, doi: .
Abstract: In this paper, we propose an adaptive video frame rate control method, called AFCON, that video encoders use in conjunction with explicit rate based congestion control in the network. First, an encoder buffer constraint which guarantees the end-to-end delay of video frames is derived under the assumption of bounded network transmission delay for every frame data. AFCON is based on the constraint and consists of future channel rate prediction, frame discarding, and frame skipping. Recursive Least-Squares (RLS) is used to predict the low-frequency component of the channel rate. Frame discarding prevents the delay violation of frames due to the prediction error of the channel rate. Frame skipping adapts the encoder output rate to the channel rate while avoiding abrupt quality degradation during the congestion period. From the simulation results, it is shown that AFCON can adapt to the time-varying rate channel with less degradation in temporal resolution and in PSNR performance compared to the conventional approach.
URL: https://global.ieice.org/en_transactions/communications/10.1587/e84-b_7_1915/_p
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@ARTICLE{e84-b_7_1915,
author={Myeong-jin LEE, Jae-kyoon KIM, },
journal={IEICE TRANSACTIONS on Communications},
title={Adaptive Video Frame Rate Control over Explicit Rate Networks Based on Channel Rate Prediction},
year={2001},
volume={E84-B},
number={7},
pages={1915-1925},
abstract={In this paper, we propose an adaptive video frame rate control method, called AFCON, that video encoders use in conjunction with explicit rate based congestion control in the network. First, an encoder buffer constraint which guarantees the end-to-end delay of video frames is derived under the assumption of bounded network transmission delay for every frame data. AFCON is based on the constraint and consists of future channel rate prediction, frame discarding, and frame skipping. Recursive Least-Squares (RLS) is used to predict the low-frequency component of the channel rate. Frame discarding prevents the delay violation of frames due to the prediction error of the channel rate. Frame skipping adapts the encoder output rate to the channel rate while avoiding abrupt quality degradation during the congestion period. From the simulation results, it is shown that AFCON can adapt to the time-varying rate channel with less degradation in temporal resolution and in PSNR performance compared to the conventional approach.},
keywords={},
doi={},
ISSN={},
month={July},}
Copier
TY - JOUR
TI - Adaptive Video Frame Rate Control over Explicit Rate Networks Based on Channel Rate Prediction
T2 - IEICE TRANSACTIONS on Communications
SP - 1915
EP - 1925
AU - Myeong-jin LEE
AU - Jae-kyoon KIM
PY - 2001
DO -
JO - IEICE TRANSACTIONS on Communications
SN -
VL - E84-B
IS - 7
JA - IEICE TRANSACTIONS on Communications
Y1 - July 2001
AB - In this paper, we propose an adaptive video frame rate control method, called AFCON, that video encoders use in conjunction with explicit rate based congestion control in the network. First, an encoder buffer constraint which guarantees the end-to-end delay of video frames is derived under the assumption of bounded network transmission delay for every frame data. AFCON is based on the constraint and consists of future channel rate prediction, frame discarding, and frame skipping. Recursive Least-Squares (RLS) is used to predict the low-frequency component of the channel rate. Frame discarding prevents the delay violation of frames due to the prediction error of the channel rate. Frame skipping adapts the encoder output rate to the channel rate while avoiding abrupt quality degradation during the congestion period. From the simulation results, it is shown that AFCON can adapt to the time-varying rate channel with less degradation in temporal resolution and in PSNR performance compared to the conventional approach.
ER -