超高精細・大画面映像システムの画面パラメータ : 静止映像による画面縦横比と最大画素数の検討

概要

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A system format that optimizes viewer appreciation of UDW (Ultra high-Definition and Wide-screen television) images was investigated. In particular, the relationships among the screen size, viewing distance (angle), screen aspect ratio, and number of pixels were investigated. A linear relationship was found between the screen size and preferred viewing distance. Comparison of the preference for images with four aspect ratios and with 16:9 aspect ratio showed that the preferred aspect ratio depends on the screen size, not on the viewing angle. An aspect ratio of about 2:1 was most preferred in the home environment. The relationship between the screen size and aspect ratio was thus given by a simple equation. An equation for relating the maximum number of pixels necessary for a UDW system to three parameters (screen size, viewing distance, and aspect ratio) was derived using the visual resolution capacity.
社団法人映像情報メディア学会の論文
2002-03-01