In this paper, we propose a method to detect partial-duplications accompanied with affine transformation in an image. The proposed method estimates a transformation matrix of duplications accurately. By using the estimated matrix, duplicated regions are detected in detail and represented by different colors in an image.

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This paper presents a method for blurred image restoration. The proposed method adopts object matching for PSF estimation and adaptive parameter setting of a prior probability distribution for latent image estimation. Then, accurate blur removal becomes feasible without suffering from ringing artifacts.

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This paper describes a file management method by mapping the broadcast contents into the continuous identifier. By applying the proposed method, we can access the contents efficiently. This paper also presents details about the implementation of this method for our developed distributed file system.

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FIMS is a standardization activity initiated as a joint taskforce of AMWA and EBU in December 2009. In this paper, the overview of the FIMS taskforce is introduced with its historical background, its technological characteristics and its first implementation successfully demonstrated at the 2011 NAB Show in Las Vegas.

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We developed a video identification system with digital watermarking to improve operability for TV production. It is proved that our system is able to detect metadata in a short time from compressed videos which are assumed to be transmitted by Field Pick-up Units (FPUs) or optical fiber lines.

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We improved our digital watermarking software. The new version of watermark insertion and extraction modules function as DirectShow filters and use Graphics Processing Units (GPUs) for quickness. The modules insert and extract watermarks in real time.

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Technique for automating generation for digest of sports contents by meta data processing.

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We have developed "The Universal Player" which can play out file based media using RS-422 VCR control. By using this player, it is able to use file based media in linear editing environment to improve current workflow.

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Recently, a server virtualization technology is used for various systems like web servers. However, it hasn't been applied to the broadcasting systems yet. This report is about a trial of the terrestrial digital broadcasting systems using a server virtualization technology.

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The VANC (Vertical ANCillary data, ex. "Audio mode") is very important information for operating master control systems. This surveillance system monitors VANC continuously and detects errors automatically.

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Previously ,to verify closed caption data on CM videos, we needed complex operations and took long time. So,we developed an easier verifying system. By using this system ,we can verify closed caption data for HD , SD and Mobile in at once.

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NHK is developing an advanced hybrid broadcast and broadband system called "Hybridcast". Hybridcast uses application software that runs on a receiver to introduce new kinds of hybrid services. This paper describes a basic model of the application and control methods such as application signaling.

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We developed a presentation control method of applications in Hybridcast which follows presentation policy determined by broadcasters. This paper describes transmission scheme of presentation policy which is primary information for the method and its prototype implementation.

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Through the use of a communication network, users can enjoy personalized communication services on TV receivers. In this paper, we propose a TV receiver with an account manager, which enables registered users to manage their individual information safely.

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We propose the method to measure transmission rates of the home network by using "ping" command. The measured rates with our method were almost same as the rates those were calculated with transmission time and size of sending data, so the accuracy of our method was confirmed. Transmission rates of various transmission lines were measured by using our method.

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We experimented to communicate in USB2.0 transmission line multiplexing with modulated PLC carrier. As a results, we confirmed that the communication using PLC carrier was successful, however the communication among PC and USB devices were failed.

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Many DTV sets in the market are capable of network video playback now. However conventional network video playback service has a problem that a user can only watch the contents on the DTV with which he buys the contents. So we study network video playback scheme with which the contents right can be purchased on a mobile terminal using the payment system for the mobile and transferred to a DTV with infrared signals.

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This paper describes the efficient method for searching digital television program using genre information. The method expands the search range and narrows the range using a combination of genres. Thus the method reduces the number of operation to finish searching the program which user dimly remembers.

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We studied on the system design of Media Player which is possible to play various video file formats. Media Player implemented on digital television platform was successful to play video file.

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We propose a newly developed one-beam push-pull method for multilayer Blu-ray Discs. It can effectively suppress the influence of stray lights from other layers which disturbs tracking error signal.

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This paper describes a method to reduce the radial tilt in flexible optical disks that become a problem when near-field recording is applied to flexible optical disks. The radial tilt was suppressed by controlling pressure distribution on the aerodynamic stabilizer surface.

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Shrinkage phenomena in photopolymer holographic recording media was analyzed using Elastica which is the linear elasticity simulator for multi-phase solid systems. Since photopolymer recording medium is sandwiched with glass substrate, main stress to shrink is vertical direction against glass substrate. However, we found that the elasticity caused by glass substrate doesn't influence inner photopolymer and it shrinks isotropically in this region.

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We developed the HDDs with constant transfer-rate, which consist of two HDD. One records data from outer to inner of the disk, the other from inner to outer. It makes possible to record HD-SDI signal with two HDDs, otherwise three HDDs are needed.

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We fabricated several patterns of notches in [Co/Pd] nanowires by nano-indentation method using scanning probe microscopy, and succeeded to control the local magnetic properties and the trapping energy along the nanowires.

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It has been known that a good broad band antenna could be obtained by adding two parasitic elements at a small distance from and parallel to a dipople antenna. In this paper, the dipole antenna with the two parasitic elements was analyzed. The effect on the dipole antenna with the two parasitic elements was examined for broadband performance of the impedance characteristic. As a result, it is found that the dipole antenna with the two parasitic elements has 53% band width.

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We developed a deployable offset reflector antenna with tensioned stainless mesh surface supported by radial ribs for prompt Satellite News Gathering (SNG). In this paper, we describe electrical and mechanical characteristics of a prototype mesh reflector antenna. The prototype antenna can transmit HD-video from most of the cities in Japan.

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We developed two measuring and monitoring equipments. (1) Spectrum-ID-Analyzer is able to show us spectrum and name of broadcasting station. (2) Channel Checker is used for analyzing TS and checking I-Q Constellation. This paper describes the details of the equipments and suggests to monitoring simply for DTTB.

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A reception performance of recent televisions for digital terrestrial broadcasting is more improved than before. Then, we surveyed the reception performance of the latest televisions in order to understand how they operate for multipath environments.

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The propagation measurement that measured the radio wave that reflected to the building was executed, and the polarized angle of electromagnetic wave was examined. And, the analyzable method of the arrival radio wave to which delay time in the same direction by the measurement of the polarization angle degree in addition to the analysis at delay time and the arrival direction analysis was adjacent was studied.

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It was hardly possible so far to compute correctly the shadow loss of the complicated-shaped building, the steel tower which has E.M. wave permeability, the mountain which has many ruggedness and so on. We contrived practical way to compute simply and quickly these shadow loss and became able to compute the E.M. wave interference area this way in the Radio Propagation Software.

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The push-to-talk communication line for broadcasting organization is used in VHF band (160MHz Band), and used for a way of communication in the program production. In this report, we designed a helical antenna with a metal case as a handy-type transceiver and calculated the SAR in the human body exposed to electromagnetic waves from the antenna. As a result, the SAR in the human body exposed to electromagnetic waves from the antenna located as usual operation satisfied the limit value indicated in the safety guidelines by the ministry of internal affairs and communications.

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We have been developing a large-scale diversity reception system using distributed remote antennas and radio-over-fiber links. This report describes the delay difference correction technique implemented on a prototype receiver and its indoor performance evaluation.

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A TV-studio-use wireless HDTV camera, "millimeter-wave mobile camera" is being developed and bi-directional transmission is required for live TV shooting. To apply STBC technique with 4 transmitting antennas for the return link system, the effect of carrier frequency offset among transmitters on STBC transmission performance was evaluated by computer simulation.

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We have been developing an experimental prototype that applies TDD(Time Division Duplex) for bi-directional FPU(Field Pick-up Unit), and have done some experiments. These results show the appropriate TDD frame size is over 20 ms, and very high uplink/downlink ratio makes the transmission rate lower in this method.

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We study mobile reception transmission method for a next-generation digital terrestrial broadcasting system which use 2×2 MIMO-OFDM and SFBC coding. This paper describes computer simulation results of the performance in each SIMO, MISO, and MIMO transmission under the dynamic channel.

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In this paper, we study EPG display and operation ,and propose channel masking function in Multi-channel CATV services.

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A 1Mpixel CMOS image sensor with column-parallel folding-integration and cyclic ADCs has 80μVrms (1.2e-) temporal noise, 82dB dynamic range using 64 samplings in the folding-integration ADC mode. Very high variable gray-scale resolution of 13b through 19b is attained by changing the number of samplings of pixel outputs.

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A new electrostatic-focusing field emitter for FEA (field emitter array)-HARP (High-gain Avalanche Rushing amorphous Photoconductor) image sensor was proposed and simulated. The simulation results showed that the new emitter improved the emission current and suppressed the bombardment of electrons to the insulator which deteriorated the reliability of FEA.

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We propose a method to apply a color filter made on another transparent substrate to colorize the BSI CCD chip processed chip-based BSI. Before applying this method, we analyzed the color crosstalk on this BSI CCD by optical simulation. Amount of crosstalk depends on the distance to the surface of BSI CCD, but it can be reduced and stabilized by the application of microlens. This method can absorb the uneveness of the surface on BSI CCD.

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High-dose radiation destroys cancer cells in radiation therapy. Verification imaging is performed to adjust the patient's position to precisely target the tumor. We have applied a refraction contrast imaging technique to verification imaging to improve the accuracy of radiation treatment. The edge enhancement effect in refraction contrast imaging can produces higher contrast images than those in conventional imaging. In this study, rat skull images were obtained by refraction contrast imaging and conventional imaging for the evaluation of image quality improvement.

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Toward a low-voltage-operating high-performance microphone for next generation, we are studying a silicon electret condenser microphone. Recently we developed a prototype microphone with inorganic electret charged by corona discharge. The microphone exhibited sufficient sensitivity and frequency range comparable to biased silicon condenser microphone. We also confirmed outstanding heat resistance of the inorganic electret compared to conventional organic electrets.

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In this paper, we propose a new method of motion vector detection at a high frame rate on an image sensor and describe the design of the image sensor on which the method is implemented.

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Perfomance of polarization-analyzing CMOS image sensor was improved by using multiple polarization-analyzing pixel array sets. The accuracy of polarization analysis was improved to σ=0.0061deg. Using the present CMOS sensor, real-time chiral analysis of menthol solution was successfully measured.

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We propose a polarization analyzing image sensor pixel based on 65-nm CMOS process. The polarizer is designed by using a metal layer. The designed pixel structure and characteristics are described. By the fabricated sensor, extinction ratio greater than 90 is successfully achieved.

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This paper presents a CMOS image sensor for optical communications using LED signal light source. In this article, we propose a pixel structure for both spatial optical communication and imaging. Simulation results show that the proposed pixel can be used at 1MHz carrier frequency.

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We propose and demonstrate wireless intra-brain communication. By using a brain as a transmission medium, low power communication is realized. An image from an image sensor is successfully transmitted through a mouse brain.

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This paper presents a time-resolved CMOS image sensor with lock-in pixels using draining only modulation. Compared with a two stage charge transfer pixel structure, this structure removes the transfer gate between pinned photo diode and pined storage diode, thus realizes trapping-less charge transfer, leading to low-noise and high sensitivity detection.

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Our group has been developing a new type of image sensor overlaid with three organic photoconductive films. In this paper, we investigated a fabrication process toward the realization of highly-sensitive, high-resolution organic image sensor.

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