著者
袴田 勇人 海老澤 嘉伸 福元 清剛
出版者
一般社団法人 映像情報メディア学会
雑誌
映像情報メディア学会誌 (ISSN:13426907)
巻号頁・発行日
vol.66, no.12, pp.J510-J515, 2012 (Released:2012-11-22)
参考文献数
10

We propose a method combining eye-gaze detection and PupilMouse to use for communicators for severely physically handicapped people. Both methods are based on remote pupil detection with a near-infrared light source. We had already implemented those methods in similar systems . With PupilMouse, the cursor on the PC display screen is moved smoothly and accurately based on the pupil movements in the camera image caused by the user ' s head movement. In contrast, with the eye-gaze detection method, the cursor moves quickly by shifting the eye-gaze point on the screen and arrives at an inaccurate eye-gaze position. In the proposed method, to use the advantages of both methods, the method is switched in accordance with the speed of the eye-gaze shift. The experimental results show that the proposed method enables characters to be inputs more quickly, accurately, and comfortably than when using one of the two conventional methods.
著者
綾 美浩
出版者
一般社団法人 映像情報メディア学会
雑誌
映像情報メディア学会誌 (ISSN:13426907)
巻号頁・発行日
vol.58, no.1, pp.31-34, 2004-01-01 (Released:2011-03-14)
参考文献数
9
被引用文献数
1
著者
小池 中
出版者
一般社団法人 映像情報メディア学会
雑誌
映像情報メディア学会誌 (ISSN:13426907)
巻号頁・発行日
vol.70, no.1, pp.J6-J11, 2016 (Released:2015-12-21)
参考文献数
3
被引用文献数
1

地震が発生した際に,揺れの大きい地点に設置されている情報カメラ(天気予報等で使用される定点カメラ)の映像をいち早く,必要な部分だけを切出して,放送用映像ファイルであるMXFに変換・出力するループ収録システムを開発した.本システムは,従来作業フローの多くを占めていた手動操作を自動処理し,実務者負担の大幅な改善に寄与している.本稿では,緊急地震速報の活用や,動きベクトルを応用した画像処理等,自動処理の方法を詳述しつつ,手動操作の方法と運用実績も併せて報告する.
著者
細江 紀貴 天野 雄介 下平 美文
出版者
一般社団法人 映像情報メディア学会
雑誌
映像情報メディア学会誌 (ISSN:13426907)
巻号頁・発行日
vol.64, no.10, pp.1503-1509, 2010-10-01 (Released:2011-01-01)
参考文献数
7

In recent years, many specific fields require accurate color reproduction for displays. Such fields are, for example, remote medical care, industrial design, electronic commerce, digital archives and color proofing of printed materials. Changes in chromaticity of the primary colors against the luminance level cause inaccurate color reproduction. This is a common problem in liquid crystal displays (LCDs). In this paper, we propose a method for correcting the phenomenon by using many colors conversion matrices made on the basis of the chromaticity shift of primary colors and luminance levels in the measured profile data of an LCD. Accurate color conversion was performed using the matrices, and the effectiveness of the conversion technique was confirmed. The application of the method enables reproduction of colors with accuracy three times as good as the Shaper Matrix Model. Moreover, it was achieved with a fewer matrices than that of the adaptive matrix color conversion.