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Technical Program
Paper Detail
| Paper: | MA-P6.4 |
| Session: | Perceptual Modeling |
| Time: | Monday, October 9, 09:40 - 12:20 |
| Presentation: |
Poster
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| Title: |
INFLUENCE OF THE PRESENTATION TIME ON SUBJECTIVE VOTINGS OF CODED STILL IMAGES |
| Authors: |
Marcus Barkowsky; University of Erlangen-Nuremberg | | | | | Bjoern Eskofier; University of Erlangen-Nuremberg | | | | | Jens Bialkowski; University of Erlangen-Nuremberg | | | | | André Kaup; University of Erlangen-Nuremberg | | |
| Abstract: |
The quality of coded images is often assessed by a subjective test. Usually the viewers get as much time as they need to find a stable result. In video sequences however, the viewer has to judge the quality in a shorter time that is defined by the changing content or a following scene cut. In this paper we present the results of a suitable subjective test on coded still images. The images were presented for six different durations, ranging from 200ms to 3s. Special care was taken to avoid the memorization effect usually present after short presentations. The results show that the viewers tend to avoid extreme votings at short durations. The variance of the votings is also discussed in detail. Based on the result of the voting for the longest presentation time, we propose a prediction model for the voting of the shorter durations using a logistic curve fit. This Presentation Time Model (PTM) is presented and analysed in detail. |
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