Comparing static and statistical multiplexing in DVB-H

López, Alejandro; Mas, José Ruiz; Fernández, Gabriel

doi:10.1109/isbmsb.2009.5133816

Cited by 1 publication

(1 citation statement)

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“…Constant Bit Rate (CBR) encoding is required in live streaming scenarios where the media content needs to be streamed at a predictable bit rate and with consistent bandwidth usage. Although Variable Bit Rate (VBR) encoding produces a better quality-to-space ratio compared to a CBR encoding of the same data [6], it may take more time to encode the video and the process is more complex. VBR encoding may also pose problems when streaming over a dial-up or broadband Internet connection as the instantaneous bit rate, if unconstrained, may rise above the maximum allowable data transfer speed.…”

Section: Introductionmentioning

confidence: 99%

Pyramid coding based rate control for constant bit rate video streaming

Varma

Mahapatra

2015

Multimed Tools Appl

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In this paper, a novel pyramid coding based rate control scheme is proposed for video streaming applications constrained by a constant channel bandwidth. To achieve the target bit rate with the best quality, the initial quantization parameter (QP) is determined by the average spatio-temporal complexity of the sequence, its resolution and the target bit rate. Simple linear estimation models are then used to predict the number of bits that would be necessary to encode a frame for a given complexity and QP. The experimental results demonstrate that the proposed rate control scheme significantly outperforms the existing rate control scheme in the Joint Model (JM) reference software in terms of Peak Signal to Noise Ratio (PSNR) and consistent perceptual visual quality while achieving the target bit rate. Finally, the proposed scheme is validated through experimental evaluation over a miniature test-bed.

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Section: Introductionmentioning

confidence: 99%