Influence of chroma variations on naturalness and image quality of stereoscopic images

A. Kuijsters, W.A. IJsselsteijn, M.T.M. Lambooij, I.E.J. Heynderickx

Onderzoeksoutput: Hoofdstuk in Boek/Rapport/CongresprocedureConferentiebijdrageAcademicpeer review

11 Citaten (Scopus)

Samenvatting

The computational view on image quality of Janssen and Blommaert states that the quality of an image is determined by the degree to which the image is both useful (discriminability) and natural (identifiability). This theory is tested by creating two manipulations. Firstly, multiplication of the chroma values of each pixel with a constant in the CIELab color space, i.e., chroma manipulation, is expected to increase only the usefulness by increasing the distances between the individual color points, enhancing the contrast. Secondly, introducing stereoscopic depth by varying the screen disparity, i.e., depth manipulation, is expected to increase both the usefulness and the naturalness. Twenty participants assessed perceived image quality, perceived naturalness and perceived depth of the manipulated versions of two natural scenes. The results revealed a small, yet significant shift between image quality and naturalness as a function of the chroma manipulation. In line with previous research, preference in quality was shifted to higher chroma values in comparison to preference in naturalness. Introducing depth enhanced the naturalness scores, however, in contrast to our expectations, not the image quality scores. It is argued that image quality is not sufficient to evaluate the full experience of 3D. Image quality appears to be only one of the attributes underlying the naturalness of stereoscopic images.
Originele taal-2Engels
TitelHuman Vision and Electronic Imaging XIV, 19-22 January 2009, San Jose
RedacteurenB.E. Rogowitz, T.N. Pappas
Plaats van productieSan Jose, CA
UitgeverijSPIE
ISBN van geprinte versie9780819474902
DOI's
StatusGepubliceerd - 2009
Evenementconference; Human Vision and Electronic Imaging XIV; 2009-01-19; 2009-01-22 -
Duur: 19 jan 200922 jan 2009

Publicatie series

NaamProceedings of SPIE
Volume7240
ISSN van geprinte versie0277-786X

Congres

Congresconference; Human Vision and Electronic Imaging XIV; 2009-01-19; 2009-01-22
Periode19/01/0922/01/09
AnderHuman Vision and Electronic Imaging XIV

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