A variable bit rate video codec for asynchronous transfer mode networks

Verbiest, W.; Pinnoo, L.

doi:10.1109/49.32339

Cited by 112 publications

(12 citation statements)

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“…The luminance of this video signal (monochrome video) is coded using a simplified discrete cosine transform (DCT)-based VBR coding scheme that does not include differential or motion-compensated coding. This type of coding can be expected to produce traffic quite similar in nature to what a JPEG video coder would produce [29]. The resulting number of bits per video "slice" is recorded every 1.39 ms (24 frames/s, 30 slices/frame).…”

Section: A Simulation Methodologymentioning

confidence: 99%

A predictive self-tuning fuzzy-logic feedback rate controller

Petr

2000

IEEE/ACM Trans. Networking

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This paper addresses the design and analysis of an end-to-end rate-based feedback flow control algorithm motivated by the available bit rate (ABR) service in wide-area asynchronous transfer mode (ATM) networks. Recognizing that the explicit feedback rate at time will not affect the ABR buffer until time + for some 0, our approach is to first predict the ABR buffer status at time + , then base fuzzy-logic rate control decisions on these predicted values, and finally tune the controller parameters using gradient descent methods. Simulations show that this predictive self-tuning fuzzy-logic (PSTF) control scheme is efficient, stable, and outperforms other proposed ABR rate controllers in a variety of network environments. With delays corresponding to a U.S. coast-to-coast connection, the PSTF controller can maintain high link utilization, avoid buffer overflows, and provide fair allocation of resources.Rose Qingyang Hu (S'95-M'98) received the B.

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Section: A Simulation Methodologymentioning

confidence: 99%

A predictive self-tuning fuzzy-logic feedback rate controller

Petr

2000

IEEE/ACM Trans. Networking

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“…Unlike voice sources, video sources have not been well characterized in terms of standard source models. We approximately model the CATV video coder of Verbiest and Pinnoo [27]. It has an average rate of 26.5 Mb/s and a standard deviation of 3.4 Mb/s.…”

Section: Numerical Examplesmentioning

confidence: 99%

Loss correlation for queues with bursty input streams

Schulzrinne

Kurose

Towsley

[Conference Record] SUPERCOMM/ICC '92 Discovering a New World of Communications

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The loss probability of a queueing system provides, in many cases, insufficient information for performance evaluation, for example, of data link layer protocols and applications with forward error correction.This paper evaluates and characterizes the correlation between packet losses for two queueing systems in discrete time that are motivated by BISDN applications. The first, a twoclass discrete-time queueing system, approximates the output queue of an ATM switch. The queue serves periodic foreground traffic and random background traffic. The background traffic is modeled as i.i.d. batches of arbitrary distribution. It is shown that the conditional loss probability (CLP) is independent of the buffer size if the buffer size is a t least as large as the period of the foreground traffic. Example calculations indicate that losses occur essentially randomly as long as the foreground traffic uses less than 10% of the channel capacity.The second analysis derives the CLP seen by a selected stream in a slotted finite-buffer system with a superposition of interrupted Poisson sources. Here, the total number of arrivals may be correlated from slot to slot. Traffic correlation is seen to have a strong influence on loss correlation, while buffer size is seen to have virtually none.

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“…Spurred by the recent advancement of the ATM concept of B-ISDN technology [21], variable-bit-rate coding (packet video) [ll], [12], [22], [23] is becoming a very promising scheme for network-oriented video transmission. This scheme relaxes the bit-rate control restrictions on the encoder and enables constant picture quality transmission instead of constant bit rate.…”

Section: E Variable-bit-rate Coding (Vbr-tami)mentioning

confidence: 99%

Temporally adaptive motion interpolation exploiting temporal masking in visual perception

Lee

Dickinson

1994

IEEE Trans. on Image Process.

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In this paper we present a novel technique to dynamically adapt motion interpolation structures by temporal segmentation. The number of reference frames and the intervals between them are adjusted according to the temporal variation of the input video. Bit-rate control for this dynamic group of pictures (GOP) structure is achieved by taking advantage of temporal masking in human vision. Constant picture quality can be obtained by variable-bit-rate coding using this approach. Further improvement can be made when the intervals between reference frames are chosen by minimizing a measure of the coding difficulty of a GOP. Advantages for low bit-rate coding and implications for variable-bit-rate coding are discussed. Simulations on test video are presented for various GOP structures and temporal segmentation methods, and the results compare favorably with those for conventional fixed GOP structures.

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A variable bit rate video codec for asynchronous transfer mode networks

Cited by 112 publications

References 1 publication

A predictive self-tuning fuzzy-logic feedback rate controller

A predictive self-tuning fuzzy-logic feedback rate controller

Loss correlation for queues with bursty input streams

Temporally adaptive motion interpolation exploiting temporal masking in visual perception

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