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後藤 正英, 井口 義則, 小野 一穂, 杉本 岳大, 安藤 彰男, 武子 太司, 日森 徹, 安野 功修, 栗田 泰市郎, 谷岡 健吉, ...
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Toward an ultra-small high-performance microphone for the next generation, we are studying a silicon microphone. In recent research, we developed a fabrication process which enabled a reduction of the diaphragm stress. This process shows great promise as a 12-V operation silicon microphone for in-car use.
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内山 虹城, 永江 孝規
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Auto focus shader for reproduce human visual characteristics installed in the simple game engine.
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小黒 久史, 郭 素梅, 鈴木 直哉, 佐藤 美恵, 阿山 みよし, 春日 正男
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Today, we can appreciate visual contents in various places with various display devices such as projectors, TVs and cellular phones. However, impressions from the same image may change in different conditions. In this paper, we propose camera control techniques to tune the impressions of the VR contents and adapt to the viewing condition.
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相澤 陽哉, 石井 勇樹, 小松 隆, 齊藤 隆弘
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Previously, as the method to remove signal-dependent noise in a digital color camera, we have proposed a denoising method with the BV-L^1 nonlinear image-decomposition. We experimentally estimate the signal-dependency functions of noise's contributions to the decomposed components, and then the functions will be utilized for improving the denoising method with the BV-L^1 image-decomposition.
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白浜 公章, 上原 邦昭
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We present a method for discovering topics from videos by detecting bursts defined over a continuous time axis.
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大高 一将, 白浜 公章, 上原 邦昭
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We propose a video retrieval framework by using video-ontology, so that we can retrieve events from an archive with various kinds f videos.
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上村 健二, 津村 徳道, 中口 俊哉, 三宅 洋一, 本村 秀人
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The method of texton substitution is improved for super-resolution enhancement of video sequence. The results show that the proposed method reproduces the details of the sequence well and the PSNR is improved by about 1.2 dB on the average.
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村上 智一, 高橋 昌史
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In this paper, we propose a new image segmentation method by combination of total variation filter(TVF) and watershed method. By using TVF, noises are efficiently reduced with keeping sharp edges in the image and the segmentation performance of watershed method is highly enhanced. Simulation results show the efficiency of the proposed method.
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小松 隆, 齊藤 隆弘
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In this paper we propose a new demosaicing method using Total-Variation regularization. Feature of our method is to use TV regularization for color differential (green-red, green-blue) image and for color additional (green+red, green+blue) images, together with to use TV regularization for each 3-color images. We show the demosaicing algorithm and the performance comparison results of experimental simulation.
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加藤 晴久, 米山 暁夫, 滝嶋 康弘
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We propose a fast contrast control method in the coded domain using weighted prediction of H.264. The simulation experiments show that the proposed method is much faster than the baseband editing without degradation.
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坂東 幸浩, 早瀬 和也, 高村 誠之, 上倉 一人, 八島 由幸
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It is really important to decide proper prediction mode in H.264 encoder, since there much more modes than conventional method such as MPEG-2. H.264 encoder like JSVM uses squared error as the criterion of distortion for mode decision. However, squared error dose not always correspond to the distortion from the viewpoint of subjective quality. In this paper, we investigate the mode decision method based on human visual system in order to improve H.264 encoder.
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相澤 陽哉, 石井 勇樹, 小松 隆, 齊藤 隆弘
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This paper presents an image-processing method for noise-suppression-type image contrast enhancement, and the method employs the BV-L^1 nonlinear image-decomposition as the pre-process of the contrast enhancement. This decomposition method separates a given input image into its three components: the BV, the L^1, and the residual components. By applying the contrast enhancement technique robust against noise to the luminance signal of the separated BV component, we construct an advanced algorithm that can enhance image contrast while suppressing the effect of noise simultaneously.
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早瀬 和也, 坂東 幸浩, 高村 誠之, 上倉 一人, 八島 由幸
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By applying a low-pass filter to an original video signal before coding, we can often achieve a high coding efficiency. However, even if this pre-filter is directly applied to JSVC, it can't remove an inter-layer redundancy. In this paper, we have proposed the new pre-filter design to apply usual low-pass filter and inter-layer redundancy removal filter to macroblock adaptively. As a result, we can achieve 11.9% bit reduction.
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Waythit Puangpakisiri, de Silva Chaminda, Toshihiko Yamasaki, Kiyoharu ...
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In this paper, a system for retrieval and segmentation of our daily life personal experience captured by SenseCam is developed. Several machine learning algorithms have been used to classify the activities of daily life. A Wi-Fi-based location estimation technology called PlaceEngine is employed to improve the precision of personal experience segmentation for SenseCam.
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高田 智巳, 小倉 慎矢, 桑原 宗光
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We have developed a prototype of an archive type network digital recorder for surveillance camera system. Virtual access method for this recorder is described in this paper.
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永井 康太, 野村 龍男, 岸田 雅彦, 林 直人, 玉城 孝彦
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We studied magnetic transfer of signal from video tape to magnetic garnet film. We observed the transferred patterns in garnet films having perpendicular magnetization and a in-plane magnetization garnet film. We also measured readout characteristics for these films using pseudo-dynamic magneto-optic readout apparatus.
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佐藤 龍二, 河村 紀一, 徳丸 春樹
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A solid electrochromic cell composed of the cathodic electrochromic material and the anodic electrochromic material was prepared. An electrochromic optical disk with a diameter of 120 mm was also prepared. This disk could wholly color.
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木下 延博, 石井 紀彦, 室井 哲彦, 上條 晃司, 清水 直樹
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A design method of modulation tables for the holographic memory is reported. The requirements and the evaluation function of the modulation tables are defined. By using the genetic algorithm (GA) to optimize the five-to-nine modulation table, we obtained the optimal table in a short time.
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岸上 智, 清瀬 泰広, 竹下 伸夫
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We have developed a new automatic optimization system of Write Strategy for optical discs by using an actual DVD recorder. Optimized Write Strategy can be obtained within only a few minutes for 2x-speed recording of DVD-R discs. Jitter value of playback signal can satisfy the standardized value of 8.0%.
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岡田 光弘, 谷田部 祐介, 稲田 圭介, 小味 弘典, 佐々本 学
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We propose a low power H.264/AVC HD codec LSI architecture which also applicable to MPEG2 and JPEG. This architecture realizes high picture quality with H.264/AVC MBAFF(macroblock adaptive frame/field) technology, while also reducing power consumption so that it can be applied to mobile products. In this paper, we will explain low power pipeline architecture and picture quality enhancement technology.
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鶴本 伸一, 森田 知宏, 湯川 真紀
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Prelinking is a mechanism for linking programs to shared libraries. To use prelinking, we save the cost of linking at runtime. There is a package from MIPS Technologies. And we verified the prelinker on our target board. We measured application startup time, and verified that the prelinking is effective.
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石川 清彦, 藤井 亜里砂, 砂崎 俊二
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Digital broadcasting data service, which provides bidirectional service through access to the Internet, is a case in point. In the context of Internet access, however, one drawback of a TV set, as against a PC, is the difficulty of typing in textual information. We describe the BML to HTML seamless browser, which enables Single Sign-On on a digital TV receiver, allowing the user to gain access to multiple services with only one login process.
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石川 清彦, 西本 友成, 藤井 亜里砂
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Digital broadcasting has already been operational in Japan for years. Broadcasting of digital content requires access to be controlled. A Secure File System (SFS) was developed to control access with a file system layer. This article describes the SFS, which is an excellent file system to manage security. SFS is possible to use with other security application layers presently available. That is, SFS does not conflict with any present security systems with application layers. Domain management is accomplished by using SFS. The result's that contents are able to share between the STB and Handheld TV.
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伊東 薫, 鈴木 克剛, 志賀 智一, 御子柴 茂生, 石井 啓二, 村上 由紀夫
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Luminance and luminous efficacy of a narrow sustain gap PDP was investigated. When the Xe content was over 30%, the efficacy of 35μm sustain gap was higher than that of 70μm sustain gap. Luminance reduction due to the reduction of the discharge area was compensated by the use of high Xe content. The narrow sustain gap structure provided low sustain voltage.
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秋山 利幸, 山田 高士, 野口 康幸, 四戸 耕治, 北川 雅俊, 篠田 傳
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Technologies for high luminous efficacy PDPs were investigated applying high Xe content gas condition. In this work, voltage pulse period dependence and electrode width dependence of luminous characteristics were evaluated. Thus it becomes obvious that high luminous efficacy can be realized applying narrower width of discharge electrodes in high Xe content condition and in rather short period of voltage pulses.
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山田 高士, 秋山 利幸, 野口 康幸, 四戸 耕治, 北川 雅俊, 篠田 傳
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This paper reports on the groove structures of dielectric layer covering sustain electrodes in PDPs that was formed in order to decrease discharge voltage under high Xe content gas condition. As a result, the discharge voltages of the groove structures were much lower than that of flat dielectric layer without reducing luminous efficacy.
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大沢 通孝, 秋山 幸男, 長瀬 拓生, 石坂 勝男
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We found that the high speed IGBT was the best device for PDP driving, and developed the new IGBTs which reduced about 40% of the power dissipation of clump devices. We used the new IGBTs in PDP sustain circuits and realized high efficiency driving circuits.
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大沢 通孝, 秋山 幸男, 綿貫 清司, 井上 広一
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We improved the low inductance mounting technology in the past. This time, we developed simulation technology in consideration of 42inch's PDP, and found how to decrease mounting inductance. We report the newly developed low inductance mounting technology to improve radiation, driving pulse distortion, and so on.
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後沢 瑞芳, 萩原 啓, 堺 俊克, 斎藤 信雄
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Raman spectrum indicates that GNF consists of small graphene sheets. Scanning atom probe analysis indicates that those graphene sheets have structural defects, which is considered to be related to emission sites, and GNF has carbon clusters combined with oxygen on its surface, which is considered to degrade the emission property.
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山本 敏裕, 藤崎 好英, 中嶋 宜樹, 佐藤 弘人, 藤掛 英夫, 時任 静士, 栗田 泰市郎
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An organic LED panel and a field-sequential color LCD panel driven by organic TFTs (OTFTs) have been fabricated using plastic films. Large W/L ratio of OTFT makes it possible to obtain sufficient write operation to the pixel within a short selection time for the moving picture with frame rate of 60Hz in both panels. Good display characteristics are confirmed on the rate. However, feedthrough voltage should be lowered to reduce the driving voltage and to increase the luminance in the future.
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小池 昭史, 根尾 陽一郎, 青木 徹, 三村 秀典
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We have studied a three-dimensional(3D) image reconstruction from 3D X-ray CT data by Computer Generated Holography with a liquid crystal panel device as a spatial light modulator. To display more significant 3D images by holography, it was considered that surface extraction and/or material distinction are important.
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野地 朱眞, 斉藤 貴志, 永田 章
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This paper presents an effective method for animation creation on multiple screen system CAVE using just one PC. This will assist creator to make multiple camera control and rendering CG animation easy.
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横山 和彦, 相良 直哉, 杉山 賢二
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About video encoding, movement compensation and DCT are effective. However, block artifact appears if with much quantization errors. We examine technique as an objective evaluation method of block artifact quantity to compare an adjacent pixel difference of the block border part and an adjacency pixel difference of the block inside.
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谷田 隆一, 清水 淳, 上倉 一人, 八島 由幸, 米原 紀子
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We have improved a bit-rate estimation algorithm for H.264/MPEG-4 AVC video coding standards. If using CAVLC for estimating bit-rate of CABAC, it gets highly accurate presumption but another scanning is needed in case of using 8x8DCT because of the restriction on standard. So, we proposed a new bit-rate estimation algorithm for 8x8DCT using CAVLC without another scanning.
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吉野 知伸, 内藤 整, 小池 淳
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4K digital cinema is a representative video application featuring super high definition images. In order to realize a reliable transmission of such high resolution images, we developed a real time codec compliant with the DCI specification. This equipment can also be utilized for contents production as the part of` 4K digital cinema authoring environment. In this paper, the outline and some experimental results are addressed especially for the encoder process.
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黒住 正顕, 西田 幸博, 田中 康暁, 深澤 勝彦, 岩津 茂太郎
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We have developed a compression and transmission system for Super Hi-Vision (SHV). Using this system, we conducted a long-distance transmission experiment of a live SHV program via IP network. This paper reports this experiment.
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安田 英史, 林 雅之
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This paper describes our development of real-time monitoring systems for data-broadcasting. The system based on new concepts using TS analyzer, can watch contents of data-broadcasting without using consumer DTV receiver. It is easy to monitor units of mono-media and helps operators in TV-master.
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本間 真一, 尾上 和穂, 小林 彰夫, 佐藤 庄衛, 今井 亨, 都木 徹
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This paper describes an experiment of a real-time captioning system for broadcast news by using hybrid speech recognition of direct program sound and rephrased utterances by a re-speaker. The result shows that the system could be used for captioning typical news programs operated by one or two error correctors and a re-speaker.
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道家 守, 浜口 斉周, 金子 浩之, 井上 誠喜, 浜田 浩行, 林 正樹
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We have been researching and developing a computer language TVML (TV program Making Language) which enables users to make TV programs based on real-time CG (Computer Graphics), only by describing TV program script on their PC. TVML Player, which is a program application on Windows PC, generates TV programs using real-time CG and voice synthesis etc. by interpreting the script written in TVML. This time, we have developed an ad-lib type TVML system, which enables users to control CG character's action on TVML Player easily by simple action description, by using external control function of TVML Player. And we introduce an application of this system for actual program production.
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柳澤 斉, 奥田 誠, 津田 貴生, 武藤 一利, 井上 誠喜, 平野 亨, 小沢 和明
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Various shooting methods are adopted in sports relay programs of athletic competitions in order to shoot a decisive play. In this paper, we had an experiment of a tracking camera system in sumo tournament relay which makes it possible to detect and track sumo wrestlers.
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大久保 隆, 伊丹 誠, 藤井 雅弘, 伊藤 紘二
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セッションID: 12-1
発行日: 2007/08/01
公開日: 2017/05/24
会議録・要旨集
フリー
Because of its narrow band characteristic, onesegment ISDB-T reception is more degraded under multipath fading environments than 13segemnts ISDB-T reception. Moreover, efficient divesity reception is difficult for ite physically small size of receiver. In order overcome this problem, cooperative divesity reception between several receivers is proposed and its performance is evaluated.
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成清 善一, 岡野 正寛, 土田 健一, 渋谷 一彦, 五十嵐 政清
原稿種別: 本文
セッションID: 12-2
発行日: 2007/08/01
公開日: 2017/05/24
会議録・要旨集
フリー
We propose a method of One-Seg connected re-transmission in which firstly the corresponding segments from two or more received broadcasted waves are extracted, then connected together, and finally re-transmitted. This paper describes field trial results with this system in Sapporo underground shopping arcades. These results show that there is little difference between the received powers of each segment.
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塩山 雅昭, 冨澤 淑光
原稿種別: 本文
セッションID: 12-3
発行日: 2007/08/01
公開日: 2017/05/24
会議録・要旨集
フリー
To a broadcast start of a digital radio, I developed a receiver for broadcasting use
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