This paper discusses the potential applicability of e-Learning employing integrative multimedia IT as well as the usability inspection methodology with the some results of the qualitative and quantitative inspections on an interactive virtual-reality learning environment.

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A three-dimensional (3-D) video system based on Integral Photography is described. In this system, real erect images of an object are formed by a GRIN lens array as elemental images, and are directly captured by a television camera. A large aperture convex lens is introduced in front of the GRIN lens array to control the depth range of the reproduced image. The video signal of a group of elemental images is transmitted to a display device that combines a liquid crystal panel and an array of convex micro-lenses, producing a color 3-D image in real-time. As a result, full-color and autostereoscopic 3-D images with full-parallax can be observed. We confirmed the possibility of the 3-D television system.

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Multimedia Ambiance Communication refers to a means of achieving shared-space communication in an immersive environment. The image space is mainly based on photo-realistic texture. And some deformations which depend on human vision characteristics, or pictorial expressions such as long-range, mid-range, and short-range views, are introduced. In this paper we propose an approach to generate a disparity panorama dense enough to be used as a template for cutting out a texture image by the depth, i. e. structuring the scene into layers which give the information to construct the shared 3-D image space. For depth estimation, we make use of census transform for robust determination of correspondence of a stereo pair. For densification of the data, we make use of Region Competition.

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We are developed tactile 3-D vision system using the shift image-splitterTM technology and 3-D grip. The 3-D display was equipped with new head tracking system, consisting of electrically movable LC image splitter and CCD camera, which enlarges stereoscopic viewing area. 3-D grip was using user-interface of the 3-D vision system, which was able to display more reality stereo-image. This system feature will lead to various applications including game, CAD/CAM, medical-image and so on.

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A new method for achieving Color Electro-Holographic-Display systems was developed and tested with very promising results. The last time, we proposed holography techniques utilizing a single white light source, instead of the traditional three color laser lights, and three liquid crystal display panels (LCD). Each of the three color light components required for the reconstruction of an image was extracted by color separation using dichroic mirrors. But, reconstructed image has the unavoidable image-blur. Blur-size of the images are derived from dispersions of reconstructing wave-lengths and expansion of beams. This time we propose that several fine color stereographic images are seen to be reconstructed in our optical system equipped with a white-light-laser and LCD panels.

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In this paper, the authors introduce a large hologram screen for three-dimensional display. The observer without special glasses can look at bright and life-sized 3D images with see-through style under normal lighting. This method realize a simple 3D display system because the input images of two cameras are directly projected without extra data processing by the LCD projectors of high light and high resolution. This paper explains the architecture of the simple 3D display using single focal holography. It moreover clears the improvement of diffractive efficiency for achromatic hologram through volume holography. It introduces two original recording techniques for making hologram screens large scale.

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In this paper, development from the impressionistsic art to the three dimentional imaging technology is considered from the viewpoint of the art history of the western world. The process which develops into the printing technology, the photographic technique, and the holography are described from the stippling technique of the impressionistic arts. At the present period, the stippling technique is applied to the three dimensional imaging technology with the fabrication of the computer generated holograms using halftoning. The impressionistic arts is applied to the basis thought of the holographic art.

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This paper presents a new texture image segmentation method, which combines some texture feature images (the gray value of pixels in feature image represents the texture feature of the same pixels in texture image) into a binary value image that separates image into different texture regions. Based on the idea of separating images by edges between different texture fields, after obtaining texture feature images, we consider the texture image segmentation problem not as a pattern classification problem but several texture edges combination problems, which are simple binary value image processing problems like Edges extracting, Holes filling, Lines thinning and shorting. A new multi-layer cellular neural network (CNN) called MLCNN is proposed. Different with the standard CNN, in an MLCNN, Multiple templates can filter the input one by one, and each state value provides multiple outputs. Some discrete MLCNNs are designed for the binary value image processing problems mentioned.

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In CRT-PC monitors or dot-matrix type displays such as LCDs and PDPs, moire fringes often appear when converting resolution or size of displayed images which have signal frequencies at or near the sampling frequency. An optimization of the spatial frequency filter response for eliminating the frequency components, which are responsible for the moire fringes, has been performed. For an example of reducing XGA images by 80%, a combined band eliminate and low pass spatial frequency filters should be employed. The band eliminate filter is used to reduce moire patterns caused by low frequency components and has a Gaussian profile with the central frequency at 0.23 line/pixel, attenuation of 0.74∼0.87, and a half-width at a half-maximum of 0.08∼0.12 line/pixel. The low pass filter is used to reduce moire patterns caused by high frequency components and eliminates signal exceeding 0.36 line/pixel. Filtering is applied only to the area in which moire is expected to appear. As a result, moire contrast is reduced to 0.02 and improvement of picture quality can be attained.

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Counting people is useful for a marketing resarch. However, at present, the measuring is carried out by a manual operation. In this paper, the authors propose a method that is able to count the people under congestion. In this method, shadow and floor region is removed from the human image by using color information. The position of a person is estimated by using the Hough transformation for a circle. It is possible to apply this method even under heavily congested situation where adjacent people often come into contact each other, because we estimate the area shared by each person without using image segmentation.

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Recently, digital cameras have been improved and added the TCP/IP protocol function and Web server functions. Then there are sites in the Internet which send the remote live movies. This paper describes the trend of the recent networking cameras, such as network cameras and web cameras which are cooperated with the video processing servers. And the functions and configurations of the cameras are classified. Then the new web camera is proposed and the configuration and the design method are mentioned. Furthermore the transfer characteristics of the camera are also shown and the ones for the mobile terminal are also mentioned.

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We use Orientation Code Matching (OCM) based search for finding objects undergoing scale changes as result of looming motion. OCM is robust for object search even in presence of some irregularities like shading, highlighting, occlusion or their combination. We propose the use of robustness property of OCM against occlusion for extending its use to search looming as well as receding objects which appear larger or smaller due to relative motion between camera and the object of interest. A two stage framework is proposed; a scale factor is estimated in the first stage and then the object is located within the image frames by searching the template which is resized by the estimated scale factor. Experimental results with real scenes show the effectiveness of the proposed method for object tracking in image sequences.

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IIEEJ Color Test Charts First Edition of No.21 and No.22 had been produced in 1985 for serving the convenience of graphic system evaluation. According to the established international standards for the process control and ink sets in the graphic technology, the production specifications of IIEEJ Color Test Charts Newest Edition which specify the aim values had been changed from densities of color solid in production to colorimetric values and the measuring conditions. This paper describes the detailed specifications of Color Test Chart No.21(REV.) and No.22(REV.), and explains how to use these Color Test Charts.

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