Lowpass filtering of rate-distortion functions for quality smoothing for real-time video recording and streaming

Zhihai He, Changwen Chen, Jianfei Cai

Research output: Chapter in Book/Report/Conference proceedingConference PaperResearchpeer-review

2 Citations (Scopus)

Abstract

In this work, we introduce the concept of low-pass filtering of rate-distortion (R-D) functions and develop a smoothed rate control (SRC) framework for real-time video recording and streaming. Theoretically, we prove that using a geometric averaging filter the SRC algorithm is able to maintain a very smooth video presentation quality while achieving the target bit rate automatically. The proposed SRC algorithm has very low computational complexity and implementation cost. Our extensive experimental results demonstrate that the proposed SRC algorithm significantly reduces the picture quality variation in the encoded video clips while matching the encoding bit rate target very accurately.

Original languageEnglish
Title of host publicationProceedings - International Conference on Image Processing, ICIP
PublisherIEEE, Institute of Electrical and Electronics Engineers
Pages1101-1104
Number of pages4
Volume5
Publication statusPublished - 2004
Externally publishedYes
Event2004 International Conference on Image Processing, ICIP 2004 - , Singapore
Duration: 18 Oct 200421 Oct 2004

Publication series

NameProceedings - International Conference on Image Processing, ICIP
PublisherIEEE, Institute of Electrical and Electronics Engineers
ISSN (Print)1522-4880

Conference

Conference2004 International Conference on Image Processing, ICIP 2004
CountrySingapore
Period18/10/0421/10/04

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