文章基本信息

标题：Effects of Image Resolutions on Subjective Impressions of Moving Images in Association with Image Contents and the Presentation Manner of Movies
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作者：Hanako Ikeda ; Chiaki Tanaka ; Souta Hidaka 等
期刊名称：認知科学
印刷版ISSN：1341-7924
电子版ISSN：1881-5995
出版年度：2016
卷号：23
期号：2
页码：101-117
DOI：10.11225/jcss.23.101
出版社：Japanese Cognitive Science Society
摘要：In relation to the recent development of ultra high definition imaging technique (4K) that have quadruple amount of pixels relative to high definition imaging (HD), it has been reported that observer’s subjective impression differ between these imaging. The present study examined how differences in resolution (4K and HD imaging) influence subjective impressions of movies in association with movie contents (natural/artificial objects) and fields of view (wide/medium/narrow) (Exp1). We also investigated the effects of the quantities of motion on subjective impressions of movies in different im- ge resolutions with the flame rate higher (59.94 fps) than the previous study (23.98 fps) (Exp2). We found that 4K movies, as compared to HD movies, induced stronger impressions regarding evaluation and comfort especially when they were presented with natural scene and/or larger field of view. It was also shown that 4K movies with higher flame rate induced stronger impressions regarding desirability and comfort regardless of motion quantities, contrary to the previous finding that 4K movies with the larger quantities of motion gave observer lower impression regarding desirability and comfort than HD movies. These results demonstrate that the differences in image resolution could modulate subjective impressions of movies in accordance with the differences in movie contents, fields of view, and flame rate. Moreover, the current findings suggest that there exist some desirable conditions under which the ultra high definition imaging could effectively enhance observers’ subjective impressions of movies.
关键词：ultra high definition imaging ; subjective impression ; movie contents ; fields of view ; frame rate