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The feasibility of a virtual colored overlay is based on constraints of computer and user preference and it is evaluated for people with Scotopic Sensitivity Syndrome. We draw  and chromaticities of virtual colored overlay which will be implemented on IT devices by measuring optical characteristics of 2 representative film overlays and simulating them. We analyzed the influence of two illuminating conditions on the virtual colored overlay. We find that it is possible to get the multiple combinations of alpha and source RGB values to match a chromaticity which is presented in CIE-Luv color space under ideal white condition of display, a user can select one among them with respect to clarity and comfort. Under 100 lx difference of illumination conditions, the changes of chromaticities are negligible, but luminances are increased 37.8 cd/㎡ average(std 2.006) at high illumination condition.키워드 : 필름 오버레이, 광과민성 증후군, 컴퓨터화된 색 오버레이, 주변조명, 포화도

This paper is a presentation a new intelligent agent which converts HTML contents to VXML contents for voice services via web. In this paper, I propose an interactive hybrid sequential contents selection method to select desired contents fast and robustly from known web pages. It uses real time structural features as well as included text and/or prior structural knowledge such as link symbol position. To verify its effectiveness, a full agent system is implemented and tested for Korean web sites. The method reflects user intention more accurately than conventional selections using structural features and is more robust to variations of HTML programming techniques. The agent is fast and has less of computational burden than methods using conventional XML or XHTML conversion as intermediate stage.