We have developed a 65-inch slim laser TV. In this laser TV set, a depth of 255 mm has been realized owing to a wide angle projection optics which consists of a projection lens and an aspherical mirror.

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We have developed the structure of moving screen to eliminate scintillation for Laser TV. The screen is supported to the frames through the springs, and driven with two linear motors in high reliability.

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We have developed an optical transmission system for laser TV. It consists only of a few lenses and an optical fiber, and enables laser TV to offer high-quality images without speckle noise.

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Recently, screen size of displays is becoming larger and larger. Also, consumers want less expensive products. Projection displays are preferable because you can achieve large screen displays without talking high cost. However, they have a problem that moire patterns are caused by correcting optical distortion. In this paper, a way to reduce both moire patterns and optical distortion is discussed.

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We have been developing the off-axis projection optics and new Fresnel lens screen for Laser TV. TIR Fresnel lens screen characterized by large incident angle, high uniformity. However we expected stray-light images were created on the roughly half of the screen area. In this paper, we introduce the new TIR Fresnel lens for drastic improvement of stray-light reducion.

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We proposed a novel front projection display system that diffuses only projected light towards the viewing angle range and reflects an ambient light towards the other angle ranges. With this system, we realized a high quality front projection display with a high contrast ratio even in a bright room.

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5.8-inch flexible AMOLED display with OTFT backplane has been fabricated. Performances of the OTFT backplane were improved by using a polymeric separator for patterning of organic semiconductors. We have confirmed an improvement of image quality in terms of brightness, uniformity, and response of the flexible display.

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In order to improve the luminescence characteristics of ultra-high-resolution plasma display panels, we devised a new coplanar electrode structure that uses twin-path discharges. The horizontal dark space between the vertical cells was reduced to 43%, and the luminance improved to 1.4 times with the conventional striped barrier rib structure.

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A new technique that couples electric circuit and discharge simulation has been developed to analyze the discharge operation of a large-screen plasma display panel (PDP) which has many pixels. Calcuation of the electrical and luminescent characteristics provides guidelines for the development of such a PDP.

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We devised the interference-included 2×2 matrix method as an optical calculation theory which could consider multiple interferences. As a result, the high-precision measurements of the parameters were achieved, and we succeeded in the improvement of the simulation accuracy of the optical characteristics by ten times compared with the conventional accuracy.

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This paper proposes a super-resolution method with a novel registration algorithm. On registration, the proposed method performs a block matching algorithm on the images whose image grids are shifted by various subpixel displacements. The effectiveness of the proposed method is shown in experiments.

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As the so-called motion-sharpening known in the field of psychology, a new phenomenon named "TFA (Temporaly-Free Aliasing) motion" was discovered, which is distorted with aliasing in still pictures, but is clear when moving. The resolution is twice higher than considered by the sampling theorem, which may lead to super-resolution. This is analyzed in the spatio-temporal frequency domain, and examined by watching computer-simulated pictures.

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Since the functionality and universal design of video camcorders have been improved year after year, it becomes easier for us to shoot video scenes as we intend. However, shooting-misses have not been fixed completely, shooting-miss factors by amateur users have been studied.

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We propose an optimal method of selecting affiliated broadcaster for automobile digital TV tuner. By this method, a TV service which consists of the good quality of video and audio is selected more rapidly when users watch a TV service which consists of the poor quality of video and audio.

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In order to record the history data of watching digital television, and to realize the program recommendation function according to a user, it is important to optimize the writing data design in the flash device of small capacity which has restriction of limited number of writing data.

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The task commission with personal authentication is the technology which buys "the right to download contents" using a mobile phone, andis used in order to download contents with home AV equipment. We performed examination of the communication sequence of a task commission, and a protocol, and developed the experiment system.

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Monocular architecture is an attractive candidate for a consumer drive. A raw data density of 663Gbits/inch^2 was achieved using this architecture with a blue laser and a high NA objective lens.

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A new signal quality metric and novel margin allocation technique for a page based holographic memory system were developed. The margin allocation result for a 500GB capacity system is both realistic and achievable.

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In holographic memories, photopolymer is a hopeful meterial as a recording medium. To use a photopolymer for holographic memories as practical recording media, it is necessary to clarify the design condition of recording/reproduction characteristics. By using our simulator, we clarified the relationship between media parameters and recording characteristics.

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The improvement of the signal quality of the reproduction image is requested for the recording density improvement. This paper studies the simulation for recording/reproduction process including wavefront aberration in holographic memory.

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Holographic medium shrinks orexpands due to temperature variation. This causes interference fringes distortion, which degrade reconstructed image quality. Therefore, we compensated the distortion using adaptive optics. As a result, mean brightness in reconstructed image could be improved.

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To realize ultra-high resolution spatial light modulator (SLM), we are developing new magneto-optical SLM driven by spin transfer switching. In this study, we observed micro magnetic structure using magneto-optical microscope and succeeded in observation of magnetization reversal of spin valve pillars.

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In this research, we have provided an evaluation of magnetic-optical properties in perpendicular magnetization GMR (Giant-Magneto-Resistive) films with Pt/Co multilayer.

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We have investigated the aerodynamic stabilizer mechanisms for the thin optical disk. The axial runout was effectively suppressed by restriction on air-inflow into the stabilizer. As the result, the clearance setting between the thin optical disk and the stabilizer was extended by about three times.

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We developed the network-id detection equipment and studied on the remote and automatic simple monitoring method for DTTB relay stations by detecting network-id. This paper describes the details of our study and shows the result of the verification experiment.

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This paper discusses the cooperative reception scheme of the digital TV broadcasting. The received signal after the symbol decision is used as the exchanged signal. And the signal is re-modulated after exchanging. The optimum weight is derived from the noise distribution of exchanged signal for the maximum ratio combining.

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IDSB-T system uses Convolution code and Viterbi decode for FEC (Forward Error Correction). On the other hand, ISDB-S2 uses LDPC code and Cellular system uses Turbo code. We study characteristic receptions applying such other error correction codes to the ISDB-T. This paper shows improvements of equivalent CNR under both AWGN and mobile reception environment.

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Since OFDM has computational efficient implementation and the robustness against the multipath fading channel, it is widely used in many wireless applications. However, it has also the disadvantages in poor frequency response and redundant insertion of guard interval. In this report, a lapped near perfect reconstruction transmultiplexer is considered as a multi carrier modulation system, and a channel equalizer is proposed. Simulation results show the robustness against the delay spread of the channel.

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Satelite broadcasting in the 21-GHz band is expected to transmit large-capacity signals such as Super Hi-Vision using wide band transmission scheme. However, this band suffers from large rain attenuation. We have been studying rain fading mitigation technique using phased array antenna. In this system, the radiation pattern changes dynamically in accordance with the movement of the heavy rainfall area. In this paper, we calculate the relation between the power flux desities and the annual service availability in each city because the rain attenuaion has regional characteristics. And we propose an example system configuration of the 21-GHz band broadcasting satellite.

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A tested which is a conceptial model of a content download service is prepared for the advanced satellite broadcasting system with communication networks. Characteristics of this model are not only 70 Mbps high-data-rate content delivery service but also harmonization with DRM and portal website of IPTV. The new service would be launched after 2011.

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In this paper, we discuss how to construct a data broadcasting system which works with an external provider. This system allows users to browse their personal information from the external provider on data broadcasting without interrruption of TV program viewing.

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This paper proposes a system to personalize broadcasting TV programs using the Internet-delivered additional information. In this system the Internet-delivered content are provided in sync with the on-air broadcating and both broadcast and Internet content are re-synchronized and combined at the receiver before presentation. Functional requirements for the system and a prototype implementation of a personalized subtitle service are discussed.

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In this paper, some studies are introduced relating to sub-block divisions used in prediction and transform processes of H.264/AVC based intra coding. Specifically, coding efficiency gain achieved by adding new type of division as well as each division's effectiveness are discussed.

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In this paper, we propose efficient technique for low resolution image generation in H.264. This method uses the DC coefficent of H.264 stream. Experimental results show that the proposed method reduces complexity by about 40% of the JM method.

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We propose a new method for improving of coding efficiency using motion estimation between reference frames. The proposed method is reducing bitrate average 4.8% and PSNR gain average 0.17 dB.

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On our previous method to extracts a short clip from a user generated video (UGV) by video analysis technology on color feature, the extracted clips lack in appeal to users. We propose a method to extract a more attractive highlight movie clip, that consists of video analysis technology on motion feature.

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The authors propose the new method for detection of improtant visual information from video program. Conventional methods used visual and audio features specific to each object for detection. In contrast, proposed method uses features regarding video production technique. As a result, object independent detection is realized.

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In this paper, we propose a method to extract indicated objects corresponding to demonstrative words for remote captioning. We extract indicated objects based on a trajectory of the edge position of a pointing stick and select the objects when a lecturer indicates the objects with demonstrative words.

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In this paper, we propose a sport teaching system based on video image correspondence. The system extracts a body silhouette from a video image sequence, matches the form of both images by DP matching algorithm and displays the differences between the form of a user and that of a teacher.

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This paper proposes a novel system for traffic sign recognition. The detection and the classification stages are processed in captured images by wide and narrow angle cameras separately. The edge information and ellipse fitting method are used for detecting the candidates of traffic signs in wide angle camera. The high resolution images of candidate are captured using narrow angle camera. The template matching method is used for classification.

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Fractal dimension is used for texture analysis as it correlates to a high degree with the human perception of surface roughness. It has been applied to quantifying the structures of a wide range of objects in biology and medicine. In this paper, we attempt to analyze skin texture images using fractal dimension, and discuss its application to evaluating skin state. This technique could be helpful in extracting human features and could be useful in detecting a wide range of skin diseases. This paper presents a method to calculate the fractal dimension of skin using a camera with lenses of different magnification. We take a series of photographs of the skin using lenses of different magnification as the magnification factor of a fractal set (skin), and count the number of objects (skin cells) in each photograph as the number of self-similar pieces of fractal set.

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This paper promoted us to conduct a trial to confirm the margins of error in the current GPS services available on mobile phones. It was carried out in several sites in Japan in order to ascertain the nature of the errors. To identity more spacifically the by GPS function, image processing technique, using autocorrelation method between mobile phone still image and accumulated motion images was examined.

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As a fundamental consideration for constructing the objective assessment method in the coded stereoscopic video, we examine the difference of the perception degree of the quality degradation in the stereoscopic video and its two dimensional (2D) video. At first, using subjective DSIS method, we obtain the mean opinion score (MOS-3D) of coded stereoscopic video, its score (MOS-L) of coded left-video, and its score (MOS-R) of coded right-video. Next, after we obtain an average value of MOS-L and MOS-R, and the difference between MOS-3D and its average, we define its difference as the improvement of subjective quality between stereoscopic video and two dimensional video. As a result of subjective assessment test, MOS-3D is always about 0.5 point higher than MOS of coded two dimensional video.

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In this paper, we propose a robust matting method for filtering out unwanted regions in silhouettes by dividing each silhouette into closed regions. This method features the AND-operation of shape from silhouette, projections of VH into each silhouette, and interative procedures. Experimental results show the effectiveness of the proposed method.

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We propose two methods of the optimum allocation of monitoring cameras. One is to observe the specific area with more than two cameras. The other is to consider the camera connecting cost. The cost is estimated by wire length.

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