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Dive into the research topics where Takehiro Nakai is active.

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Featured researches published by Takehiro Nakai.


user interface software and technology | 2011

Gesture keyboard requiring only one camera

Taichi Murase; Atsunori Moteki; Noriaki Ozawa; Nobuyuki Hara; Takehiro Nakai; Katsuhito Fujimoto

In this paper, we propose a novel gesture-based virtual keyboard (Gesture Keyboard) of QWERTY key layout requiring only one camera. Gesture Keyboard tracks the users fingers and recognizes gestures as the input, and each virtual key of it follows a corresponding finger. Therefore, it is possible to input characters at the users preferred hand position even if displacing hands during inputting. Because Gesture Keyboard requires only one camera to obtain sensor information, keyboard-less devices can feature it easily.


symposium on 3d user interfaces | 2012

Poster: Head gesture 3D interface using a head mounted camera

Atsunori Moteki; Nobuyuki Hara; Taichi Murase; Noriaki Ozawa; Takehiro Nakai; Takahiro Matsuda; Katsuhito Fujimoto

In this paper, we propose a real world UI that uses head gestures. This UI detects user head motion obtained in images by head mounted camera (HMC). It estimates the relative position and distance between a users head and objects user is viewing. To prevent erroneous judgment, a head-specific motion model is applied in gesture recognition. As a feedback to the user, detailed object information is displayed on head mounted display (HMD). This UI allows hands-free interaction with surrounding objects. We show the UIs effectiveness by experiments.


Archive | 2012

IMAGE SELECTION DEVICE AND IMAGE SELECTING METHOD

Hiroyuki Kobayashi; Kimitaka Murashita; Masayoshi Shimizu; Takehiro Nakai


Archive | 2001

Acoustic echo canceler and handsfree telephone set

Takehiro Nakai; Hiroshi Katayama; Chiharu Kawai; Hideaki Kurihara


Archive | 2006

IMAGE SHOOTING DEVICE WITH CAMERA SHAKE CORRECTION FUNCTION, CAMERA SHAKE CORRECTION METHOD AND STORAGE MEDIUM RECORDING PRE-PROCESS PROGRAM FOR CAMERA SHAKE CORRECTION PROCESS

Kaoru Chujo; Takashi Wakamatsu; Takehiro Nakai; Akifumi Izumisawa; Yasuhiro Kawakatsu; Masayuki Hirose


Archive | 2000

Speech recognizing apparatus

Chiharu Kawai; Hiroshi Katayama; Takehiro Nakai


Archive | 2011

Work support device and work support program

Takehiro Nakai; Katsuto Fujimoto; Nobuyuki Hara; 丈裕 中井; 伸之 原; 克仁 藤本


Archive | 2010

IMAGE PICKUP APPARATUS AND FOCUSING MECHANISM CONTROL METHOD

Takehiro Nakai; Akifumi Izumisawa


Archive | 2010

IMAGE CAPTURING APPARATUS, IMAGE CAPTURING METHOD, AND IMAGE CAPTURING PROGRAM

Terufumi Izumisawa; Takehiro Nakai; 丈裕 中井; 映文 泉澤


Archive | 2006

Image shooting device with camera shake correction function

Kaoru Chujo; Takashi Wakamatsu; Takehiro Nakai; Akifumi Izumisawa; Yasuhiro Kawakatsu; Masayuki Hirose

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