Perceptual evaluation of JPEG-coded stereoscopic images

Pieter Seuntiens; Lydia Meesters; Wijnand A. IJsselsteijn

doi:10.1117/12.474122

30 May 2003 Perceptual evaluation of JPEG-coded stereoscopic images

Pieter Seuntiens, Lydia Meesters, Wijnand A. IJsselsteijn

Proceedings Volume 5006, Stereoscopic Displays and Virtual Reality Systems X; (2003) https://doi.org/10.1117/12.474122
Event: Electronic Imaging 2003, 2003, Santa Clara, CA, United States

Abstract

JPEG compression of the left and right components of a stereo image pair is a way to save valuable bandwidth when transmitting stereoscopic images. This paper presents results on the effects of camera-base distance and JPEG-coding on overall image quality, perceived depth, perceived sharpness and perceived eye-strain. In the experiment, two stereoscopic still scenes were used, varying in depth (three different camera-base distances: 0, 8 and 12 cm) and compression ratio (4 levels: original, 1:30, 1:40 and 1:60). All levels of compression were applied to both the left and right stereo image, resulting in a 4x4 matrix of all possible symmetric and asymmetric coding combinations. We applied the single stimulus method for subjective testing according to the ITU 500-10 recommendations. The observers were asked to assess image quality, sharpness, depth and eye-strain. Results showed that JPEG coding had a negative effect on image quality, sharpness and eye-strain but had no effect on perceived depth. An increase in camera-base distance increased perceived depth and reported eye-strain but had no effect on perceived sharpness. Furthermore, both sharpness and eye-strain correlated highly with perceived image quality.

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Pieter Seuntiens, Lydia Meesters, and Wijnand A. IJsselsteijn "Perceptual evaluation of JPEG-coded stereoscopic images", Proc. SPIE 5006, Stereoscopic Displays and Virtual Reality Systems X, (30 May 2003); https://doi.org/10.1117/12.474122

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