Ms. Xin Jin Profile

Xin Jin

at Ningbo Univ

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Proceedings Article | 4 November 2014 Paper

A foreground object features-based stereoscopic image visual comfort assessment model

Xin Jin, G. Jiang, H. Ying, M. Yu, S. Ding, Z. Peng, F. Shao

Proceedings Volume 9273, 92730Q (2014) https://doi.org/10.1117/12.2073606

KEYWORDS: Visualization, Virtual colonoscopy, Visual process modeling, Image segmentation, Molybdenum, Image visualization, 3D video compression, Image fusion, 3D displays, Image quality

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Since stereoscopic images provide observers with both realistic and discomfort viewing experience, it is necessary to investigate the determinants of visual discomfort. By considering that foreground object draws most attention when human observing stereoscopic images. This paper proposes a new foreground object based visual comfort assessment (VCA) metric. In the first place, a suitable segmentation method is applied to disparity map and then the foreground object is ascertained as the one having the biggest average disparity. In the second place, three visual features being average disparity, average width and spatial complexity of foreground object are computed from the perspective of visual attention. Nevertheless, object’s width and complexity do not consistently influence the perception of visual comfort in comparison with disparity. In accordance with this psychological phenomenon, we divide the whole images into four categories on the basis of different disparity and width, and exert four different models to more precisely predict its visual comfort in the third place. Experimental results show that the proposed VCA metric outperformance other existing metrics and can achieve a high consistency between objective and subjective visual comfort scores. The Pearson Linear Correlation Coefficient (PLCC) and Spearman Rank Order Correlation Coefficient (SROCC) are over 0.84 and 0.82, respectively.

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