Recently, it is expected to find more efficient coding technology. In this paper, we study non-casual motion compensate prediction to make the coding efficiency better.

View full abstract

Recently, the performance of the portable digital camera is improved. However, it is not yet high performance about the photography of the animation. Additionally, the camera is required to reduce the cost. In this paper, we introduce a high-resolution of face image in a motion picture.

View full abstract

We propose a new personal authentication system using video which is taken during sweeping handheld camera in front of one's face. We select the sequence of image frames as characteristic features. The proposed method employs HMM to calculate the pattern similarity and verifies its accuracy of authentication.

View full abstract

In this paper, we mention the construction technique of news ontology which expresses the elements of news event. By using external knowledge, we can generalize the important word and obtain the word concepts characteristic of the each news element.

View full abstract

A hybred log-in system, which uses images in addition to password with authentication is proposed. Basic paramaters for experiments are considered.

View full abstract

Features of face images can be analyzed by using the principal component analysis. Length, thickness, size and inclination of each facial part are represented by the combination of specific principal components, respectively. These features of each facial part are further related to subjective impressions and described by texts.

View full abstract

In this study, there is it for the purpose of the improvement of the rate of detection of the breast cancer and decrease of the false positive (FP) for developing CAD of high performance.

View full abstract

In this paper, we propose the technique that subspace method of mammographic masses automated classification.

View full abstract

It is demanded the ratio of a heart and lungs with a CT image quantitatively three dimensions by finding the volume of a heart and lungs. Therefore, it can judge a condition precisely than before.

View full abstract

We developed a system to retrieve relevant TV programs using information in the web being browsed as queries. This paper describes an outline of the system and preliminary experiment.

View full abstract

We construct the TV conference system which can use to the clients from the meeting room to a personal type using scalable video coding. In our method, all communications are through a server. By this method, the client of a many people can participate in video conferencing at a time.

View full abstract

The video database system in local area community is able to search of scene by keyword .A high convenience user interface which can upload, edit and search the video file easily, is realized in this system.

View full abstract

With development of machines, it becomes possible to realize wearable systems. In this paper, we propose an interface for image capture by image recognition of hand frame. We assume a wearable system in which a small camera is attached to glasses. We report a summary of the interface, a detection method of hand frame and experimental results.

View full abstract

In this paper, we propose a robust and fast pointing interface based on webcam image matching. Our approarch focuses on matching a webcam image and a screen image along with camera tracking, which is different from conventional schemes based on camera motion estimation or screen contour detection.

View full abstract

The ability of recognizing dynamic environments is required for autonomous mobile robots. This paper proposes a method to detect changes in surroundings even if a robot do not observe movements of objects. A probabilistic mapping is introduced to estimate whether observed regions are dynamic or static based on distance information.

View full abstract

The recognition of 3-dimensional space information is essential if robots are to help people in daily life. We propose a method that gets space information between camera and objects from quantity of movement in video camera and movement of characteristic in video camera images.

View full abstract

When ego-motion estimation between adjacent frames is sequentially performed, the final camera location derived from the estimation could be inaccurate due to accumulation of individual estimation errors. To cope with the problem, the optimal combination of frames which minimizes the expected accumulation error is determined using the dynamic programming method.

View full abstract

We describe the method of distance measurement using horizontal focal plane of monocular imaging system. In the proposed method, the ground region is clearly obtained by the horizontal focal plane and the boundary pixels between objects and the ground can be detected in real time for the distance measurement.

View full abstract

We have been conducting research on a high-quality speech synthesis system for automatic audio broadcasting. We propose a method for generating manuscripts for speech database to synthesize definite form sentences.

View full abstract

Our study is aiming to improve quality of score reading by using musical theories to intermediate score in MIDI forma produced by conventional systems. In this report, we propose the use of well known constraints in music theory and the procedures to refine machine generated music scores.

View full abstract

A method of pitch detection for sound using inverse notch filter constructed by comb filters is proposed. Ratio of signal power of pre- and post- filtered sound can be used to estimate the existence of the corresponding pitch of sound. Using the proposed method, pitches of a chord which consists of harmonies upto three can be detected correctly.

View full abstract

When Independence Component Analysis is used for Blind Source Separation, it is very important to choose the appropriate measure of independency. In this paper three kinds of measures, namely cumulant, negentropy and cross-correlation function are compared through the experiment for sound BSS.

View full abstract

A method of crackle noise detection in sound signal caused by crackles on LP records is proposed. After the sound signal is divided into short segments, signal power and maximum absolute amplitude of each segment are used to detect noise. It is shown that the position of crackle noise is correctly detected.

View full abstract

To apply the baseband transmission system for digital broadcasts over FTTx to non-optical networks at customers premises, we propose an in-house coaxial cable transmission system coexistent with ISDB-T signals in the UHF band

View full abstract

We developed an experimental equipment to accommodate an uncompressed SHV (Super High-Vision) signal in an OTU3 (Optical Channel Transport Unit-3) signal. Results of BER experiment showed that the SHV signal was transmitted up to 6 km by using Reed-Solomon error correction.

View full abstract

EDFA gain response was analyzed for optical OFDM signal. Gain variation was less than 0.05dB for bit-rate larger than 1Mbps.

View full abstract

Iterative LDPC-MMSE-SIC (Low-Density Parity-Check Minimum Mean Square Error with Soft Interference Cancellation) is considered to improve signal detection performance in MIMO-OFDM system. In this report, the performance evaluation of LDPC-MMSE-SIC receiver under perfect CSI (Channel State Information) and estimated CSI is performed.

View full abstract

A TV-studio-use wireless HDTV camera, "millimeter-wave mobile camera" is being developed and MIMO-OFDM and millimeter-wave are applied for the camera system. By computer simulation, the effect of dual-polarized MIMO-OFDM on the channel correlation and BER was evaluated by using cross-polarization power ratio in outdoor MIMO channel for the camera development.

View full abstract

The signal bandwidth is 5.57MHz(6MHz*13/14) in the channel of digital broadcasting, and the distance resolution 54m of the delay profile. The transfer functions of two or more of digital broadcasting channels were connected, an equivalent signal band expanded, and it examined it concerning the technology that improved the analytical accuracy of the propagation property. In this paper, the improvement of the range discrimination of the delay profile is described.

View full abstract

A new audience service system with the One Seg video distribution was developed. This system is able to transmit a video which was recorded with a TV camera as the One Seg. We would like to report this developed system, and the evaluation from an audience.

View full abstract

We have developed an easy-operating transportable system for video transmission with automatic functions which realize store-and-forward transmission within the given time analyzing hardware performance and available bandwidth.

View full abstract

We can use analog broadcast program as a return video. It is an essential item of monitor in live TV program production. Now analog broadcast program is no delay, but from Jul 2011 we must use only digital broadcast program with delay. Then it is difficult to communicate between studio reporters and remote site reporters smoothly. Therefore, we have developed low delay transmission system via internet.

View full abstract

This paper describes the performance of a developed high-speed synchronization server system for partially modified file. The developed server system is equipped with functionaries such as file verification, re-try and undo.

View full abstract

We have developed a file transport protocol for high-speed data transfer on LFN. By using this protocol, we can easily control the transfer rate depending on the priority.

View full abstract

Perceptual effects of visual cues on sound images moved up were investigated with eight loudspeakers and lamps perpendicularly set up. The results show that the perceptual origin point of a sound image can be influenced by the visual stimulus with the duration of 1.5sec presented at the beginning of sounds.

View full abstract

In this paper, we study visual characteristics to make recognizable mosaicked images by using antialiasing. In our experiment, we have found out the most recognizable viewing angle about mosaicked images and the advantage of our antialiasing method over mosaicked images.

View full abstract

In this paper, spatio-velocity contrast sensitivities were measured by using red-green and blue-yellow grating stimuli. The results show the contrast sensitivities at the spatial frequencies over one cycle-per-degree decrease gradually as the velocities of the stimuli increase.

View full abstract

The paper describes a pilot study to examine the easily viewable distance for a number of different sizes of picture, including 2-D and stereoscopic images. The preliminary results indicate: 1) there is little difference of the viewing distance between stereoscopic and 2-D images, and 2) the viewing distance remains at 2.0 to 2.5H as larger picture size than 70 inches.

View full abstract

We propose a visible light road-to-vehicle communication system at intersection as one of ITS technique. In this system, the communication between vehicle and an LED array is approached using LED array as a transmitter, and on-vehicle high-speed camera as a receiver. The LEDs in the transmitter are emitted in 500Hz and those emitting LEDs are captured by a high-speed camera for making communication. Here, the luminance value of LEDs in the transmitter should be captured in consecutive frames to achieve effective communication. For this purpose, first the transmitter should be identified, then it should be tracked in consecutive frames while the vehicle is moving, by processing the images from the high-speed camera. In this paper, we mainly introduce an algorithm to track the transmitter using optical flow and edge information.

View full abstract

Traffic accidents caused by elderly drivers have increased. Few elderly people recognize the decline in their own driving ability; this lack of awareness is a major cause of accidents. A driving ability measurement simulator was developed to make comprehensive measurements of the vision, attentiveness and decision-making skills indispensable for safe driving.

View full abstract

In this paper, we propose a method for screening elderly drivers who have dementia and potentially cause traffic accidents, by measuring their driving performance comparing with characteristics of dementia using a driving simulator for elderly drivers. We give experimental results on the method.

View full abstract

In seeking to reduce accidents by the elderly, it is critical to perform regular assessments and trainings of driving ability (particularly vision, attentiveness and decision-making skills) from early in middle age. A driving ability training simulator was developed to improve the attentiveness and decision-making skills while driving.

View full abstract

We conducted subjective evaluation on the relationship between TV volume and background sound level for the elderly. The participants themselves found no hearing problem, but they had small hearing loss. The results showed that positive subjects of recruitment phenomena annoyed louder than negative subjects when they listened at loud volume.

View full abstract

An extracting method of facial area and parts from a natural background using variable interframe subtraction and color information is presented in this paper. In this system, a robust extraction system is proposed.

View full abstract