Abstract
For better image-texture analysis and interpretation of moving images used in the construction field, a real-time VISibility evaluation system (VIS system) for "Feature Composite Moving (FCM) images" inducing visual illusion (i.e., pseudo-rotational and persistent of vision) has been developed. The animation-like FCM images are produced by continuously displaying emboss processing-based images (i.e., shade images) according to eight directions of light sources. The power spectra for the fluctuation of digital number values (i.e., spatial frequency components) in each pixel of FCM image are grouped into 40 classes which are delineated on "Visibility Evaluation (VE) map." VIS system can execute those image processing in real time, which contributes to improve the accuracy of quantitative evaluation of visibility for various kinds of texture features in moving images.