We propose the method that we measure three dimensional orientations of a fiber using to evaluate material characteristic of fiber reinforced plastic. We estimate three dimensional position of a fiber from an interference stripe of the fiber that is obtain an scanning acoustic microscope. And we generate a modeling of an interference stripe, measure an orientation using a model image and an actual scanning acoustic microscope image. Thus we show a effectiveness of a measurement of fiber orientational distribution estimation for a both model image and a scanning acoustic microscope image.

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We propose the active contour model which have the elasticity parameter on it to generate the animation of moving non-rigid object from limited observation images. The elasticity parameter is calculated using the convergence time for all points of a contour model. The convergence time of the contour model is controled using the elasticity. So, it is possible to generate the animation from two observation images. This method is useful for the request that we would like to get the smooth moving using limited observation images. The effectiveness of the method is evaluated using the closed contour with some kinds of convex, which are artificially made.

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We propose two methods measuring 3-D shape from an analysis of specular reflection images under projection of pattern-light sources synthesized by computer graphics. The first method introduces a moving slit light. The second method introduces sinusoidal waves as the pattern light to realize a specular Moire-interference. Defects on the surface of object are visualized as deformation of the specular reflection image. Here, we picked up to measure defects of a plastic injection molding and detected anomalies such as surface dents and warpage qualitatively and precisely.

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Body movement was evaluated by image sequence processing during sleep. Electroencephalogram and heart rate interval were recorded, simultaneously. To study a relationship between autonomic nerve activity and depth of sleep, heart rate fluctuation and δ-wave of the electroencephalogram were evaluated by power spectrum analyses. When a body movement occurred during sleep, the activity of sympathetic nervous system increased and power of δ-wave decreased. We discuss a model of the relationship between autonomic nerve activity and depth of sleep from considering the experimental results.

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This paper describes the general specification, system configuration and current statement of Multi-media Educational Research System which has been developed for (1) the production of educational materials, (2) presentation of multi-media lectures and (3) offering the research tools for multi-media processing in Tokyo Denki University. In concrete, we present (1) the production procedures for multi-media educational materials, such as VTR image, OHP images, computer controlled images and sound image, composed of visual images and sound, (2) the presentation method of multi-media lectures using the multi-media materials mentioned above, and (3) the collaboration method for multi-media processing through the data channels.

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We have developed an experimental 4K x 2K pixel progressive scan color camera system. This camera system uses a four-sensor pickup method with 2/3 inch 2 million pixel CMD (Charge Modulation Device) imagers which are driven in the progressive scan mode. An HDTV image extractor for this very high resolution image system has also developed. In this paper, we report on investigations into resolution charactors of the extracted HDTV image, especially that of green channel signal. The ITE retoma chart and the circular zone plate chart for high-definition TV systems are used for these obserbations.

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This paper presents reduction methods of radio interference for television broadcasting. Foreign FM broadcasting radio waves reflected by the sporadic E-layer often interfere with television broadcasting. We estimate power spectra of TV signals by integrating the result of FFT of one scanning line over one field. When the frequencies of the interfering waves are detected, the power of them is supressed to the estimated values. We can get only the TV signals by IFFT without much degradation. The threshold level for detection of FM broadcasting is changed each field using the estimated value. We will show the effectiveness of our methods with some simulation examples.

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