出版者

東洋経済新報社

雑誌

週刊東洋経済 (ISSN:09185755)

巻号頁・発行日

no.5939, 2005-02-12

著者

石橋 博良

出版者

財界研究所

雑誌

財界

巻号頁・発行日

vol.54, no.3, pp.66-69, 2006-01-31

出版者

データエージェント

雑誌

近代中小企業

巻号頁・発行日

vol.41, no.8, pp.28-31, 2006-06

著者

冨山 芳幸

出版者

社団法人日本気象学会

雑誌

天気 (ISSN:05460921)

巻号頁・発行日

vol.53, no.11, pp.857-861, 2006-11-30

被引用文献数

1

---

The improvement of quantitative precipitation forecasts (QPF) is expected to contribute to the disaster mitigation. However, the economic and social impacts of warm-season QPF have not been quantified. The purpose of this study is to estimate for social impacts of available QPF using the warning lead time as the measure. Such warnings as helpful to the decision making of evacuation counsel for disaster are focused in this study. The contribution of QPF to the warning lead time is estimated as 0.8〜2.8 hours.

著者

曲沼 美恵

出版者

日経BP社

雑誌

日経ベンチャ- (ISSN:02896516)

巻号頁・発行日

no.273, pp.15-21, 2007-06

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約束の時間ちょうどに、気象情報会社、ウェザーニューズの創業者で会長の石橋博良は、慌ててフロアに駆け込んで来た。 ネクタイは妻のお手製。それをやや緩めに結んだ石橋は、はっきりしない空模様とは正反対の、晴れやかな笑顔を浮かべながら、会社を立ち上げてからこれまでのことを、こんなふうに表現した。

著者

高橋 俊一 今野 晃市 金野 哲士 千葉 史

出版者

一般社団法人映像情報メディア学会

雑誌

映像情報メディア学会技術報告 (ISSN:13426893)

巻号頁・発行日

vol.32, no.34, pp.25-28, 2008-07-31

---

遺物の復元は,出土した土器片の分類から組み立てまでをほとんど手作業で行っている.このため,土器片の数が多いほど復元に時間を要する.また,専門的な知識も必要となる.本稿では,破片形状の3次元座標点群を利用した土器片のマッチング手法について検討する.本手法は,まず,3次元計測器で十器片を計測することで3次元座標点群を獲得し,獲得した3次元座標点群から土器片の輪郭線を抽出する.その後,分割した輪郭線ごとに幾何情報と文様の位置を比較評価することで,土器片のマッチングを行う.

著者

山根 大祐 今井 慈郎 定行 修

出版者

一般社団法人電子情報通信学会

雑誌

電子情報通信学会技術研究報告. CQ, コミュニケーションクオリティ (ISSN:09135685)

巻号頁・発行日

vol.104, no.441, pp.65-70, 2004-11-11

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遠隔監視制御システムの開発を行っている.システムではネットワークカメラから取得した画像をサーバ上で加工し,クライアントに転送して表示させる.またクライアントからの指示によりサーバを経由して電源のON/OFFなど行う.今回の研究ではクライアントのGU1部分に携帯電話を活用し,サーバに動体キャプチャリング機能を付加することでシステム全体の機能向上を図った.

著者

狩野 真之

出版者

一般社団法人映像情報メディア学会

雑誌

映像情報メディア学会誌 : 映像情報メディア (ISSN:13426907)

巻号頁・発行日

vol.59, no.5, pp.697-700, 2005-05-01

著者

清田 公保 島川 学 本田 幸代 江崎 修央 砂崎 由樹

出版者

一般社団法人情報処理学会

雑誌

情報処理学会研究報告ユビキタスコンピューティングシステム(UBI) (ISSN:09196072)

巻号頁・発行日

vol.2006, no.14, pp.139-143, 2006-02-16

被引用文献数

2

---

This paper proposes a text reading system by using active micro camera. This system is designed as information navigation for visually impaired person. The system is composed with a laptop PC Network Camera and a command input device. At first the system extracts character areas automatically and characters are recognized by offline-character recognition application. Next The text database of the layered structure is composed from captured menu image by using the system. A technical factor in this system is as follows. Because the user of the system is the blind the captured menu image is not certain whether to contain an appropriate character area. Some characters are transformed such as inclination too big or small. Therefore the proposed system extracts the character area including a small character first. The camera zooms to each candidate character area and then character area of high resolution is extracted. The proposed system can be used to check items of menu and prices. We apply this system to restaurant menu reading system for blind person. The user opens the first page of the menu and pushes [capture] button on the portable PC. In this time the camera turned in the direction of the menu. Then system tries to make database of the menu automatically. Then a menu item database is composed of the menu items that are extracted by offline character recognition. The database items are name of menu and its price. The system announces the menu items by voice synthesizer. The user is able to select the candidate item by using [yes] or [No] button on the control interface board in the system. This operation is very easy for the blind. From the viewpoint that the visually impaired person uses it we discuss that the system design of menu reading system and the presentation method of an efficient voice reading out.This paper proposes a text reading system by using active micro camera. This system is designed as information navigation for visually impaired person. The system is composed with a laptop PC, Network Camera and a command input device. At first, the system extracts character areas automatically, and characters are recognized by offline-character recognition application. Next, The text database of the layered structure is composed from captured menu image by using the system. A technical factor in this system is as follows. Because the user of the system is the blind, the captured menu image is not certain whether to contain an appropriate character area. Some characters are transformed such as inclination, too big or small. Therefore the proposed system extracts the character area including a small character first. The camera zooms to each candidate character area, and then character area of high resolution is extracted. The proposed system can be used to check items of menu and prices. We apply this system to restaurant menu reading system for blind person. The user opens the first page of the menu, and pushes [capture] button on the portable PC. In this time, the camera turned in the direction of the menu. Then system tries to make database of the menu automatically. Then, a menu item database is composed of the menu items that are extracted by offline character recognition. The database items are name of menu and its price. The system announces the menu items by voice synthesizer. The user is able to select the candidate item by using [yes] or [No] button on the control interface board in the system. This operation is very easy for the blind. From the viewpoint that the visually impaired person uses it, we discuss that the system design of menu reading system, and the presentation method of an efficient voice reading out.

著者

三輪 誠 若林 伸和 矢野 吉治

出版者

公益社団法人 日本航海学会

雑誌

日本航海学会論文集 (ISSN:03887405)

巻号頁・発行日

vol.114, pp.243-250, 2006

被引用文献数

2 2

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The regulation to enforce improvement of security level was executed in 2004. Ships which are obliged should take the cost for introduction of new security system. We tried to construct on-board LAN using wireless technology aboard existent ship in operation, in order to utilize ship's monitoring system. In this paper, we describe outline of implementation of on-board LAN system aboard T. S. Fukae-maru and conclusion of the radio intensity measurement of wireless LAN, also describe ship monitoring system utilizing network camera as a practical application of the LAN.

著者

上島 貞浩 道下 文雄

出版者

一般社団法人日本機械学会

雑誌

鉄道技術連合シンポジウム(J-Rail)講演論文集

巻号頁・発行日

vol.2006, no.13, pp.359-362, 2006-12-13

---

In the Keihanna line of Kintetsu Corporation opened for service this spring, we have developed and introduced a remote monitoring and control system for automatic fare collection equipment and other station equipment such as elevators, escalators etc., in order to reduce railway station duties. This system uses the network camera product and is applying the VoIP technology, and data streams of video, voice and control are integrated in digital form and transmitted on the IP network, so the system can be simply constructed. And the consoles are placed at two centers and six stations, so remote operation is available from every station, as well as from center.

著者

郭 孝範 堀内 岳人

出版者

一般社団法人映像情報メディア学会

雑誌

映像情報メディア学会誌 : 映像情報メディア (ISSN:13426907)

巻号頁・発行日

vol.62, no.7, pp.985-988, 2008-07-01

著者

柳井 啓司

出版者

一般社団法人映像情報メディア学会

雑誌

映像情報メディア学会誌 : 映像情報メディア (ISSN:13426907)

巻号頁・発行日

vol.62, no.7, pp.1022-1027, 2008-07-01

被引用文献数

1

著者

西掘 研人 竹内 義則 松本 哲也 工藤 博章 大西 昇

出版者

一般社団法人映像情報メディア学会

雑誌

映像情報メディア学会誌 : 映像情報メディア (ISSN:13426907)

巻号頁・発行日

vol.62, no.7, pp.1086-1097, 2008-07-01

被引用文献数

1 1

---

We propose a new method for determining the correspondence between audio and visual events based on the selective attention which is observed in a living organism. For auditory attention, our system recognizes a target sound in noisy environments using an auditory filter that focuses on a specific period corresponding to visual events. It was confirmed that the success rate of correspondence between audio and visual events increased from 78.6% without the auditory filter, to 95.2% with the auditory filter. This certifies the importance of visual information for auditory attention. We also realized a visual attention of localizing a sound source and adjusting the line of sight and the iris of a camera when the system perceived a sound, but could not obtain visual information. The success rate of experiments based on visual attention is 93.3%. These results show the effectiveness of the proposed method.

著者

島本 洋 三橋 政次 峯 忠己 船津 良平 橘川 俊哉 三谷 公二 浜田 浩行 羽鳥 好律

出版者

一般社団法人映像情報メディア学会

雑誌

映像情報メディア学会誌 : 映像情報メディア (ISSN:13426907)

巻号頁・発行日

vol.62, no.7, pp.1104-1109, 2008-07-01

被引用文献数

5 1

---

We have developed a prototype single-chip color HDTV camera for broadcasting. This camera uses a 1.25-inch 8.9-M-pixel CMOS image sensor for obtaining enough resolution characteristics and signal-to-noise ratio (SNR) in a singlechip color system. The camera has an HD-SDI output and a body weight of only 1.4 kg (3.1 lb). The measured resolution was more than 35% on a modulation transfer function (MTF) (45% on a square wave response) at 800 TV-lines. The sensitivity was an f-stop of 11 at 2000 lux with a dynamic range of 400%, and the SNR was 60 dB. These characteristics were as high as those with conventional 2.2-M-pixel 3-CCD HDTV cameras. The measured color difference (delta-E) between this camera and a 3CCD camera on a CIELAB color space was about 9.3. Our simulation showed that the delta-E was about 1.8 with a linear matrix color correction.

著者

海老澤 嘉伸 中島 彩

出版者

一般社団法人映像情報メディア学会

雑誌

映像情報メディア学会誌 : 映像情報メディア (ISSN:13426907)

巻号頁・発行日

vol.62, no.7, pp.1122-1126, 2008-07-01

被引用文献数

4 11

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In general, the relative position between the centers of the pupil and corneal reflection are used for precise eye-gaze detection. Recently, for stable pupil detection under various ambient light conditions, the pupil has been detected by the difference between the bright and dark pupil images. However, due to the difference in acquisition timing between the bright and dark images, the precision of the pupil position easily decreases when the head moves. We propose a compensation method which differentiates those pupil images after shifting one of the images so that the positions of corneal reflections in both images should match, and show its effectiveness.

著者

三科 智之 山本 健詞 大井 隆太朗 奥井 誠人

出版者

一般社団法人映像情報メディア学会

雑誌

映像情報メディア学会誌 : 映像情報メディア (ISSN:13426907)

巻号頁・発行日

vol.62, no.7, pp.1132-1137, 2008-07-01

被引用文献数

5

---

We describe how to reduce interference between elemental images suitable for production of holograms during integral photography pickup that uses a lens array composed of typical convex lenses used as elemental lenses. We propose the use of an optical system that consists of both a field lens and an aperture that is located in the focal plane of the field lens. The system is arranged between the lens array and the camera used for taking elemental images. Diffraction patterns in the focal plane of the field lens of beams going through elemental lenses were calculated with the Fresnel-Kirchhoff diffraction formula. Consequently, we clarified that the system was able to limit the incident angle of the beam passing through the elemental lenses with the size of the aperture located in the focal plane. In addition, we carried out an optical experiment and proved that using the optical system reduced the interference between the elemental images.

著者

吉川 浩 津田 貴生 檜山 茂雄 新谷 幹夫 小黒 久史

出版者

一般社団法人映像情報メディア学会

雑誌

映像情報メディア学会誌 : 映像情報メディア (ISSN:13426907)

巻号頁・発行日

vol.62, no.8, pp.1255-1258, 2008-08-01

被引用文献数

1

著者

浦浜 喜一

出版者

一般社団法人映像情報メディア学会

雑誌

映像情報メディア学会誌 : 映像情報メディア (ISSN:13426907)

巻号頁・発行日

vol.62, no.8, pp.1268-1273, 2008-08-01

被引用文献数

8 7

著者

大竹 剛 真島 恵吾 合志 清一 藤井 亮介 伊藤 浩 鈴木 光義 高井 重典 寛座 武智

出版者

一般社団法人映像情報メディア学会

雑誌

映像情報メディア学会誌 : 映像情報メディア (ISSN:13426907)

巻号頁・発行日

vol.62, no.8, pp.1292-1300, 2008-08-01

被引用文献数

1

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As digital broadcasting has become widespread and the available bandwidth for Internet access has become wider, more high-quality digital content has been distributed to users, making illegal copying a critical issue in the content business. New technology for identifying illegally distributed content is necessary to deter it. We developed two methods for identifying video content: the extraction of characteristic information from video and the use of phase-only correlation. A system was developed to apply these methods to digital TV programs. Experiments on four weeks of broadcast content gave good results, which suggests that a combination of the two methods would enable us to identify video content distributed illegally over the Internet precisely and quickly.