Quality assessment of upsampled depth map and 3D evaluation using no-reference and full-reference metrics

초록

In 3D image generation, depth map plays an important role in 3D perception of viewers. Due to low capability of depth acquisition devices as well as ready-made depth maps, depth map upsampling is often needed. In this paper, we investigate the relation between objective quality assessments of upsampled depth map and 3D subjective evaluation of stereoscopic image. For the former, full-reference and no-reference image quality assessments are applied to measure the objective quality of upsampled depth maps. Subjective evaluation is carried out by DSCQS test on the stereoscopic images. We use several upsampling methods to achieve different depth map qualities as our experimental samples. Finally, the quantitative value of each measurement is compared with a subjective assessment using three correlation coefficients. The experiment shows promising results that could help to select the most appropriate objective quality assessment tool(s) for stereoscopic image quality measurement. © 2015 ICIC International.

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