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An objective method of measuring texture preservation for camcorder performance evaluation

Zhu, KF, Li, SJ and Saupe, D (2012) An objective method of measuring texture preservation for camcorder performance evaluation In: IS&T/SPIE Electronic Imaging 2012, 2012-01-22 - 2012-01-26, Burlingame, CA, USA.

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Abstract

This paper presents a method for evaluating the performance of camcorders in terms of texture preservation, taking into account the contrast sensitivity function of human visual system. A quality metric called texture preservation ratio (TPR) is the outcome of the method. It quantifies to what extent texture structures are preserved in a video recorded by a camcorder. In our experiments, we used the dead leaves chart to simulate a scene with textures of different scales. The dead leaves chart is known as a good target for testing purposes because it is invariant to scaling, translation, rotation, and contrast (exposure) adjustment. Experimental results have shown the following observations on five tested camcorders from three different vendors: 1) the TPR value decreases monotonically with respect to the motion speed; 2) the TPR value increases monotonically with respect to the lossy compression bitrates. Thereby, our study has confirmed TPR as a useful indicator for measuring a camcorder's performance in terms of preserving textures.

Item Type: Conference or Workshop Item (Paper)
Additional Information: Zhu, K F, Li, S J, and Saupe, D. "An objective method of measuring texture preservation for camcorder performance evaluation", Proc. SPIE 8293 (2012); DOI:10.1117/12.907265. Copyright 2012 Society of Photo-Optical Instrumentation Engineers. One print or electronic copy may be made for personal use only. Systematic reproduction and distribution, duplication of any material in this paper for a fee or for commercial purposes, or modification of the content of the paper are prohibited.
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Divisions: Faculty of Engineering and Physical Sciences > Computing Science
Depositing User: Symplectic Elements
Date Deposited: 13 Jun 2012 13:17
Last Modified: 23 Sep 2013 19:26
URI: http://epubs.surrey.ac.uk/id/eprint/532400

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