The influence of perceived quality by adjusting frames per second and bits per frame under the limited bandwidth

Huey Min Sun, Yung Chuan Lin, Lih Chyun Shu

Research output: Chapter in Book/Report/Conference proceedingConference contribution

Abstract

Under the limited bandwidth, MPEG-4 video coding stream with Fine Granularity Scalability can be flexibly dropped by very fine granularity to adapt to the available network bandwidth. Therefore, we can either reduce the frame rate, i.e., reduce the frames per second(FPS), by dropping partial frames to keep the spatial sharpness of an image or reduce the bits per frame(BPF) to keep the temporal continuity of a video. We attempt to understand that different content characteristics for the above two schemes affect the visual perceived quality when the bandwidth is limited. In this paper, the double stimulus continuous quality evaluation(DSCQE) is used as our subjective measurement. In our experiment, the subjects assess the scores of perceived quality by comparing the reference sequences with the test sequences for different content characteristics. We find that video contents with low motion characteristic suit to low frame rate and video contents with high motion characteristic suit to high frame rate under the limited bandwidth. The perceived quality of the spatial sharpness for the detailed texture sequences is influenced more than the easy texture sequences when the bit rate is increased.

Original languageEnglish
Title of host publicationAdvances in Visual Information Systems - 9th International Conference, VISUAL 2007, Revised Selected Papers
PublisherSpringer Verlag
Pages230-241
Number of pages12
ISBN (Print)9783540764137
DOIs
Publication statusPublished - 2007
Event9th International Conference on Visual Information Systems, VISUAL 2007 - Shanghai, China
Duration: 2007 Jun 282007 Jun 29

Publication series

NameLecture Notes in Computer Science (including subseries Lecture Notes in Artificial Intelligence and Lecture Notes in Bioinformatics)
Volume4781 LNCS
ISSN (Print)0302-9743
ISSN (Electronic)1611-3349

Other

Other9th International Conference on Visual Information Systems, VISUAL 2007
CountryChina
CityShanghai
Period07-06-2807-06-29

All Science Journal Classification (ASJC) codes

  • Theoretical Computer Science
  • Computer Science(all)

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