Workspace Recognition Assisting for the Visually Impaired by Clock-Position Navigation of Hand

通过手动时钟位置导航辅助视障人士的工作空间识别

• 批准号: 20500798
• 负责人: MIYAKAWA Masahiro
• 金额: $ 3万
• 依托单位: Tsukuba University of Technology
• 依托单位国家: 日本
• 项目类别: Grant-in-Aid for Scientific Research (C)
• 财政年份: 2008
• 资助国家: 日本
• 起止时间: 2008 至 2010
• 项目状态: 已结题
• 来源: https://kaken.nii.ac.jp/grant/KAKENHI-PROJECT-20500798/
• 关键词: 視覚障害補償; クロックポジション; 手の誘導; 近接状況認識; 空間把握; 距離場空間モデル

We propose an arm-navigation system which assists a visually impaired person with navigating his arm to an object on the table. This is achieved by indicating the direction of the object with its "clock-position" and simultaneously indicating the velocity of the hand by a sound signal. We have adopted optical tracking of markers attached both on the hand and objects, instead of scene analysis in order to assist the navigation in real-time. The most important aspect in providing such assistance is to help the visually impaired person create a cognitive map of the workspace. Therefore, we have tried to provide spatial information of the workspace obtained by using the geometric modeler of space: the Distance Field Model (DFM). Furthermore, we found that the followings are effective : (1) the velocity of the hand is determined by a fuzzy control rule, (2) degrees of congestion on the table is judged by applying a neural network pattern recognizer on the DFM data of the workspace and it is conveyed to the user.

我们提出了一个手臂导航系统，帮助视障人士导航他的手臂上的一个对象在桌子上。这是通过用“时钟位置”指示物体的方向，同时用声音信号指示手的速度来实现的。我们采用光学跟踪的标记附着在手上和物体上，而不是场景分析，以协助实时导航。在提供这种协助时，最重要的方面是帮助视障人士创建工作场所的认知地图。因此，我们试图通过使用空间的几何建模工具：距离场模型（DFM）来提供工作空间的空间信息。此外，我们发现以下是有效的：（1）手的速度是由一个模糊控制规则，（2）在工作空间的DFM数据上应用神经网络模式识别器来判断表上的拥挤程度，并将其传达给用户。

项目成果

Aiding Arm Navigation of a Visually Impaired Person,-Workspace Congestion Judgment by Neural Network-

辅助视障人士手臂导航，-通过神经网络进行工作空间拥堵判断-

• 发表时间: 2009
• 期刊: Proc. Perspectives of System Informatics(PSI' 09) Eighth International Andrei Ershov Memorial Conference
• 作者: Yasuyuki Murai;Hisayuki Tatsumi;Masahiro Miyakawa
• 通讯作者: Masahiro Miyakawa

Aiding Arm Navigation of a Visually Impaired Person

帮助视障人士进行手臂导航

• 发表时间: 2009
• 期刊: Proc.7th Int.Conf.Perspectives of System Informatics (Educational Informatics)
• 作者: 澤田昌之;田中敏光;佐川雄二;Yasuyuki MURAI
• 通讯作者: Yasuyuki MURAI

Arm Navigation Assisting for the Visually Impaired

为视障人士提供手臂导航辅助

• 发表时间: 2008
• 期刊: Proc.WAC (World Automation Congress) 6th Int.Forum on Multimedia and Image Processing No.343
• 作者: Yasuyuki Murai;Hisayuki Tatsumi;Masahiro Miyakawa;Shinji Tokumasu
• 通讯作者: Shinji Tokumasu

Kanji Writing Assisting through Haptic Interface for the Visually Impaired

通过触觉界面为视障人士提供汉字书写辅助

• 发表时间: 2010
• 期刊: Proc.WAC (World Automation Congress) 2010 Int.Forum on Multimedia and Image Processing (IFMIP) No.534
• 作者: 村井保之;巽久行;宮川正弘
• 通讯作者: 宮川正弘

Passage Route Navigation Algorithms for Holon Type Mobile Robots under Dynamic Environments

动态环境下Holon型移动机器人通道路线导航算法

• 发表时间: 2008
• 期刊: Proc. World Automation Congress 2008 (WAC'2008) IFMIP-315
• 作者: 大西仁;林大作;中村直人;望月要;Yasuyuki. Murai
• 通讯作者: Yasuyuki. Murai