A knapsack model for bandwidth management of prerecorded multiple MPEG video sources

Date

2005-01-01

Author

Erten, YM
Gullu, R
Süral, Haldun

Metadata

Show full item record

This work is licensed under a Creative Commons Attribution-NonCommercial-NoDerivatives 4.0 International License.

Item Usage Stats

167
views

0
downloads

In this article we provide a framework for controlling the bit rate of multiple prerecorded MPEG video sequences by choosing the quantization factors assigned to individual sources in a way that the total mean square error at the output of the encoder is minimized. We propose and test a knapsack model for the selection of the quantization factors. Our computations based on a set of relatively diverse video sequences reveal that the proposed model achieves a high utilization of the available bandwidth and acceptable distortion levels without any data loss.

Subject Keywords

Bandwidth management, Quantization selection, Mean square error, Knapsack model

URI

https://hdl.handle.net/11511/33192

Journal

TELECOMMUNICATION SYSTEMS

DOI

https://doi.org/10.1023/b:tels.0000048329.05800.8c

Collections

Department of Industrial Engineering, Article

Suggestions

OpenMETU
Core

A complexity-utility framework for optimizing quality of experience for visual content in mobile devices Önür, Özgür Deniz; Alatan, Abdullah Aydın; Department of Electrical and Electronics Engineering (2012) Subjective video quality and video decoding complexity are jointly optimized in order to determine the video encoding parameters that will result in the best Quality of Experience (QoE) for an end user watching a video clip on a mobile device. Subjective video quality is estimated by an objective criteria, video quality metric (VQM), and a method for predicting the video quality of a test sequence from the available training sequences with similar content characteristics is presented. Standardized spatial i...
A simplified MAP channel estimator for OFDM systems under Rayleigh fading ÇÜRÜK, SELVA; Tanık, Yalçın (2010-06-01) This paper presents a simplified Maximum A Posteriori (SMAP) channel estimator to be used in orthogonal frequency division multiplexing (OFDM) systems under the Rayleigh fading assumption for the subchannels, using a parametric correlation model and assuming that the channel is frequency selective and slowly time varying. Expressions for the mean-square error (MSE) of estimations are derived to evaluate the performance of the estimator. The relation between the correlation of subchannels taps and error vari...
A multi-view video codec based on H.264 Bilen, Cagdas; Aksay, Anil; Akar, Gözde (2006-10-11) H.264 is the current state-of-the-art monoscopic video codec providing almost twice the coding efficiency with the same quality comparing the previous codecs. With the increasing interest in 3D TV, multi-view video sequences that are provided by multiple cameras capturing the three dimensional objects and/or scene are more widely used. Compressing multi-view sequences independently with H.264 (simulcast) is not efficient since the redundancy between the closer cameras is not exploited. In order to reduce th...
OPTIMIZATION OF ENCODING AND ERROR PROTECTION PARAMETERS FOR 3D VIDEO BROADCAST OVER DVB-H Aksay, Anil; Bugdayci, Done; Akar, Gözde (2011-05-18) In this study, we propose a heuristic methodology for modeling the end-to-end distortion characteristics of an error resilient broadcast system for 3D video overDigital Video Broadcasting -Handheld (DVB-H). We also use this model to optimally select the parameters of the video encoder and the error correction scheme, namely, Multi Protocol Encapsulation Forward Error Correction (MPE-FEC), minimizing the overall distortion. The proposed method models the RQ curve of video encoder and performance of channel c...
A real time, low latency, FPGA implementation of the 2-D discrete wavelet transformation for streaming image applications Benderli, O; Tekmen, YC; Ismailoglu, N (2003-09-06) In this paper, we present an architecture and a hardware implementation of the 2-D Discrete Wavelet Transformation (DWT) for applications where row-based raw image data is streamed in at high bandwidths and local buffering of the entire image is not feasible. The architecture is especially suited for multi-spectral imager systems, such as on board an imaging satellite, however can be used in any application where time to next image constraints require real-time processing of multiple images. The latency tha...

Citation Formats

Y. Erten, R. Gullu, and H. Süral, “A knapsack model for bandwidth management of prerecorded multiple MPEG video sources,” TELECOMMUNICATION SYSTEMS, pp. 101–116, 2005, Accessed: 00, 2020. [Online]. Available: https://hdl.handle.net/11511/33192.