A method of measuring fingertip loading during keyboard use
نویسندگان
چکیده
منابع مشابه
A method of measuring fingertip loading during keyboard use.
A single keycap on a standard alphanumeric computer keyboard was instrumented with a piezoelectric load cell and the fingertip motion was recorded with a high-speed video motion analysis system. Contact force histories between the fingertip and the keycap were recorded while four subjects typed a standard text for five minutes. Each keystroke force history is characterized by three distinct pha...
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OBJECTIVE We described the frequency and distribution of keyboard users' potentially risky postural behaviors. METHOD Forty-three participants' keyboard postural behaviors were rated with the Keyboard-Personal Computer Style instrument (Baker & Redfern, 2005). The frequency and distribution of keyboard postural behaviors and the associations and differences between the right and left sides we...
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Background and aims: Paper-pencil tests have always its own problems in the mental disorders evaluation, including learning questions, bad or good blazon are the problems with this methodology. This study aimed to propose a new alternative method of measuring mental disorders without paper-pencil test using EEG. Methods: The research society involved depr...
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The kinematics of movement of all five digits was analyzed during reach-and-grasp tasks for a variety of objects. Ten healthy subjects performed 20 trials involving the grasp of five objects of distinct size and shape. Joint angles were recorded, and digit trajectories were computed using forward kinematics. For a given subject, fingertip trajectories were consistent across trials. The differen...
متن کاملVirtual Keyboard: Realization of Robust Real-Time Fingertip Detection from Video-Image
我々の研究であるバーチャルキーボードは,特殊なハードウェアを使わずにユーザがキーボード を作成し利用できるシステムである.バーチャルキーボードシステムは, CCDカメラで撮影した ユーザの指先の位置を実時間で検出し,システム内で仮想的に作成されているキーボードをタイプ するためのシステムである.これまでに我々の研究で得られた結論の 1つが, \ビデオ画像から指 先の位置を実時間で正確に検出する必要性"である. 2次元ビデオ画像から毎フレーム各指先座標 を正確に検出する事は容易でなく,これに関わる処理コストは非常に高い.従って,このアプロー チを実用的なバーチャルキーボードシステムの実現に利用するには困難であると考えて来た.しか し昨今の計算機の発展により,エンドユーザが利用している計算機でも実用に近いレベルでバー チャルキーボードシステムを利用可能になって来た.本稿ではバーチャルキー...
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ژورنال
عنوان ژورنال: Journal of Biomechanics
سال: 1994
ISSN: 0021-9290
DOI: 10.1016/0021-9290(94)90227-5