検索結果 855件中 1-20 を表示

  • Control of treatment size in cavitation-enhanced high-intensity focused ultrasound using radio-frequency echo signals

    Tomiyasu Kentaro , Takagi Ryo , Iwasaki Ryosuke , Yoshizawa Shin , Umemura Shin-ichiro

    … The result shows that this method can be used to detect boiling bubbles and the following generated cavitation bubbles at their early stage. … By automatically stopping HIFU exposure immediately after detecting the bubbles, overheating was prevented and the deviation of the length of the coagulated region was reduced. …

    Jpn. J. Appl. Phys. 56(7S1), 07JF28, 2017-06-28


  • Blue-laser scanned imaging system using positioning marks formed on an optical disk substrate

    Shima Takayuki , Wang Xiaomin , Shiramizu Hideyuki , Fujimaki Makoto , Awazu Koichi , Ohki Yoshimichi

    … We improved the optical disk-based imaging system to make more precise images at low cost for safety enhancement applications to observe and detect micrometer-order hazardous substances collected on a large-area surface. … An optical disk substrate with positioning marks is prepared, and a signal processor is developed to automatically construct an image using the marks. …

    Jpn. J. Appl. Phys. 56(5), 058003, 2017-03-29


  • ユーザの姿勢を考慮したモバイル端末の把持姿勢認識

    小川 剛史 , 朴 燦鎬

    … ,ユーザの姿勢を含む12種類の把持姿勢を認識する.被験者実験において5分割交差検定を行い,97.7%の精度で12種類の把持姿勢を認識できることを確認した.また,ユーザに対する端末の向きに注目すると99.7%の精度で正しい向きを検出できており,提案手法が端末の把持姿勢認識に有効であることが示された.Most mobile devices detect vertical direction based on acceleration of gravity, and rotate their screens automatically. …

    情報処理学会論文誌デジタルコンテンツ(DCON) 5(1), 31-37, 2017-02-28


  • 人の実装プロセスに学ぶ検査画像処理ソフト自動生成手法

    吉村 裕一郎 , 青木 公也

    … So far our studies make it possible to detect defect and make image processing algorithms automatically. …

    電気学会論文誌. C 137(9), 1201-1208, 2017


  • Visual Indexing of Large Scale Train-Borne Video for Rail Condition Perceiving

    DAI Peng , WANG Shengchun , HUANG Yaping , WANG Hao , DU Xinyu , HAN Qiang

    … In this paper, we propose a simple and effective method to detect the train-swaying quickly and automatically. … The experimental results show that RTP, the compact video representation, can fast examine the visual train-swaying information for track condition perceiving, on which we detect the irregular spots with 92.86% recall and 82.98% precision in only 2 minutes computation from the video close to 1 hour.</p> …

    IEICE Transactions on Information and Systems E100.D(9), 2017-2026, 2017


  • Exercise Transcutaneous Oximetry of the Buttocks ― External Validation With Computed Tomography Angiography ―

    Audonnet Martin , Signolet Isabelle , Colas-Ribas Christophe , Ammi Myriam , Abraham Pierre , Henni Samir

    … Chest-tcPO2 changes were automatically classified into pre-defined profiles representing normal or abnormal responses. … Using DROP <−15 mmHg as a cut-off, Ex-tcPO2 had 80.2% sensitivity, 72.3% specificity, 43.1% PPV, 93.3% NPV and 73.9% accuracy, to detect 1 stenosis >75% in arteries toward the hypogastric circulation. … Optimal DROP to detect stenosis was: −15 mmHg. …

    Circulation Journal 81(8), 1123-1128, 2017


  • In-plant 3D positioning system using point cloud data for remote decontamination machine

    SATOH Yoshinori , AIKAWA Tetsuro , KAWAGUCHI Yuji , SAKAMOTO Naoya , SAITO Masahiro , KANEDA Masayuki , SAKAI Hitoshi

    … Because the position data such as GPS data is not available in the buildings, it was hard for operators to detect its absolute position and orientation in the building, and it took much time to recognize targets to be decontaminated. … In order to reduce positioning time and make operation works easier, we constructed 3D positioning system to automatically detect the absolute 3D position of the decontamination machine in the reactor buildings from a remote safe building. …

    Mechanical Engineering Journal, 2017


  • 赤外線通信により物理的対面を計量するウェアラブルデバイス

    蜂須 拓 , Yadong Pan , 利根 忠幸 , Baptiste Bourreau , 鈴木 健嗣

    … The device has unique capabilities: measuring timing and duration of face-to-face behavior as well as an identity of the partner, being used by multiparty, and automatically logging the behavior by connecting with Android device. … A pilot experiment with two dummy heads shows that the developed devices can detect the face-to-face behavior with a certain angle. …

    日本バーチャルリアリティ学会論文誌 22(1), 11-18, 2017


  • Detection of avalanche locations using infrasound array data(インフラサウンド・アレイ観測による雪崩発生箇所の推定)

    ARAI Nobuo(新井伸夫) , IMAI Toshiaki(今井俊昭) , OTSUKI Masaya(大槻政哉) , SAITO Yoshihiko(斎藤佳彦) , MURAYAMA Takahiko(村山貴彦) , IWAKUNI Makiko(岩國真紀子)

    … <p>Infrasound observations can be used to measure the energy radiated by an avalanche into the atmosphere and detect avalanches over large areas. … In the 2014-2015 winter season, we deployed three sensors spaced by 1-2km in a triangular array and attempted to automatically extract signals associated with avalanches from the observed raw data using time-domain processing. …

    Bulletin of Glaciological Research 35(0), 1-6, 2017


  • Non-linear Time-series Analysis of Social Influence

    Thinh Minh Do , Yasuko Matsubara , Yasushi Sakurai

    … (b) If there are, can we automatically detect them? … (b) If there are, can we automatically detect them? …

    情報処理学会論文誌データベース(TOD) 9(3), 2016-09-30


  • 高感度映像とDeep Neural Networkを用いた夜間対応型知的防犯カメラ

    長山 格 , 宮原 彬 , 島袋 航一

    … Certain characteristics of motion are determined from video streams, and using a deep neural network the system automatically classifies the situations in the video streams into criminal or non-criminal scenes. … The experimental results show that the system can effectively detect snatching incidents with an accuracy of 96.66%.</p> …

    電気学会論文誌. D, 産業応用部門誌 136(10), 727-734, 2016


  • 犯行映像のGabor特徴情報と多数決ネットワークによる街頭犯罪の高精度検知

    長山 格 , 島袋 航一 , 宮原 彬

    … Gabor features are determined from video streams and, using a majority rule network (MRN) composed of various artificial intelligence (AI) systems, the video streams are automatically classified into criminal or non-criminal scenes. … The experimental results show that the proposed system can effectively detect criminal scenes with high accuracy.</p> …

    電気学会論文誌. D, 産業応用部門誌 136(10), 735-743, 2016


  • 人混み状況下におけるひったくりを自動検知する次世代型スマート防犯カメラ

    長山 格 , 宮原 彬 , 島袋 航一

    … Certain characteristics of motion are determined from video streams, and using a nonlinear support vector machine the system automatically classifies the situation of the video streams into criminal or non-criminal scenes. … The experimental results show that the system can effectively detect snatching incidents with an accuracy of 96.87%.</p> …

    電気学会論文誌. D, 産業応用部門誌 136(10), 711-718, 2016


  • 自律走行パイプ検査ロボット



    自動制御連合講演会講演論文集 59(0), 310-315, 2016



    BISWAS Robin K. , YOROZUYA Atsuhiro , EGASHIRA Shinji

    …  The present study introduces a method with modifying the gradient-based edge detection method for mapping sandbars automatically using satellite-based information. … The authors employ threshold and gradient based methods to detect sandbars. …

    土木学会論文集B1(水工学) 72(4), I_931-I_936, 2016


  • 筋萎縮性側索硬化症における睡眠時動脈血酸素飽和度の数理解析

    大橋 彰華 , 猪山 昭徳 , 佐古田 三郎 , 吉野 公三

    … We developed an algorithm to automatically detect and quantify the characteristics of the decrease and recovery phenomena of SpO2 during sleep. …

    生体医工学 54Annual(28PM-Abstract), S399-S399, 2016


  • DSMの半自動作成による2011年津波時の沿岸被害把握の試み

    有働 恵子 , 武田 百合子 , 越村 俊一

     現時点におけるDSM作成の最先端技術を用いた沿岸域被害把握の可能性を探るため,2011年の東北地方沖地震津波により甚大な被害を受けた仙台湾南部海岸を対象に,リモートセンシングソフトウェアERDAS IMAGINEによって半自動作成したDSMと,航空レーザー測量により作成された数値標高モデルDEMを比較することにより,作成したDSMの精度を検証するとともに,被災前後の被害推定の妥当性を確認した.半 …

    土木学会論文集B2(海岸工学) 72(2), I_1747-I_1752, 2016


  • Non-linear Time-series Analysis of Social Influence

    Do Thinh Minh , Matsubara Yasuko , Sakurai Yasushi

    … (b) If there are, can we automatically detect them? …

    Journal of Information Processing 24(6), 937-945, 2016


  • Examination of the number of classesrequired for arteriosclerosis detection

    Koya Yoshiharu , Yamada Atsuko

    … When using this method, however, it is difficult to detect arteriosclerosis in its early stages when the artery wall has not yet thickened. … Thus, we must automatically change the number of classes for each image that is obtained. …

    Proceedings of the ISCIE International Symposium on Stochastic Systems Theory and its Applications 2016(0), 67-73, 2016


  • Detecting Violations of Security Requirements for Vulnerability Discovery in Source Code

    LI Hongzhe , OH Jaesang , LEE Heejo

    … Existing source code auditing tools for vulnerability detection generate too many false positives, and only limited types of vulnerability can be detected automatically. … The experimental results show that the proposed mechanism can detect vulnerabilities with zero false positives and indicate the extendability of the mechanism to cover more types of vulnerabilities.</p> …

    IEICE Transactions on Information and Systems E99.D(9), 2385-2389, 2016