@article{oai:jaxa.repo.nii.ac.jp:00021554,
 author = {宮本, 晃 and 山田, 寛 and 松崎, 一葉 and Miyamoto, Akira and Yamada, Hiroshi and Matsuzaki, Ichiyou and Tyurin, Mikhail and Treschev, Sergei},
 issue = {3},
 journal = {宇宙航空環境医学, Japanese journal of aerospace and environmental medicine},
 month = {Sep},
 note = {Japan Aerospace Exploration Agency (JAXA) has a plan to install a High Definition Television (HDTV) system which will be applied to the crew's healthcare as telemedicine in Japanese Experiment Module (JEM). Prior to the start of JEM operation, JAXA made a contract for experiments of filming on board using a HDTV camera with Russian Space Agency (RSA). The purpose of this feasibility study was to see how we use the HDTV system in space and what kind of medical information we can obtain through HDTV images. Four Russian cosmonauts were assigned to two subjects and two cameramen during the expeditions of #3 and #5 in International Space Station (ISS). They stayed in space for four and six months respectively. Each filming was instructed by a scenario written on the onboard document, and the filmed body portions were frontal face, lateral face, eyes, mouth, teeth, tongue, pharynx, hand and arm. The recorded tapes were delivered to Japan and HDTV images were evaluated by physicians on a Cathode Ray Tube (CRT) monitor. Regarding the quality of HDTV images, 92.7 % of images in the expedition #3 and 97.7 % of images in the expedition #5 were evaluated well in positioning of target. More than 95 % of images in both expeditions were usable in the evaluation about brightness, including slight dark images. In the evaluation about focus, 79.9 % of images in the expedition #3 and 95.8 % of images in the expedition #5 were good. In the medical evaluation, 82.4 % of images in the expedition #3 and 89.4 % in the expedition #5 were judged usable to make a diagnosis. The reason why 3.3 % of images were judged unusable for diagnosis was that they were out of focus or with insufficient brightness. Therefore, the HDTV images can be one of the very useful tools in the crew's healthcare, if these technical problems are solved by enough crew training or supports from the medical staff on the ground., 資料番号: DS0049820002},
 pages = {115--122},
 title = {宇宙飛行士の健康管理を目的としたHDTV映像の評価},
 volume = {43},
 year = {2006}
}