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Hirohiko YATA
2005 Volume 68 Issue 6 Pages
434-439
Published: December 25, 2005
Released on J-STAGE: August 11, 2011
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The evaluation of the photograph was experimented with the freedom description method or the rating scale method of five stages. As a result, it has been understood to be requested from excellent works. First of all, the author's expressive intention must be included efficiently. Moreover, the author's expressive intention must be designed to lead the reader to understand.
In addition, the following three elements are necessary to understand the work more deeply, and to evaluate them correctly. In the first, evaluators must have the ability to read the author's expressive intention. Secondarily, they have knowledge and the experience of the work appreciations. Finally, they have a rich sensibility.
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Hiroyuki KOBAYASHI
2005 Volume 68 Issue 6 Pages
440-442
Published: December 25, 2005
Released on J-STAGE: August 11, 2011
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Now that the digital photography completely surpasses the silver halide photography, it is discussed what we have felt in the silver halide photography, and what we have lost as a result, introducing Roland Barthes's photograph theory “Camera Lucida”.
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Sumio NISHIMURA
2005 Volume 68 Issue 6 Pages
443-444
Published: December 25, 2005
Released on J-STAGE: August 11, 2011
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The realities of inside and art photograph where digital is becoming main current in movie set. The one that element to which advantage, fault, and digital taking a picture of digital cannot exceed analog taking a picture is recorded, and importance that analog taking a picture possessed described.
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A Companies Learning Investigation
Atsushi NAKA
2005 Volume 68 Issue 6 Pages
445-447
Published: December 25, 2005
Released on J-STAGE: August 11, 2011
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I am usually using only a manual camera. However, photography by the digital still camera may be effective by the photography in the learning investigation. It is possible that data on the digital photography are used as a backup if it is possible that the digital management of the photography of the film and the photography data is done with one camera at the same time.
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Takaji KURITA
2005 Volume 68 Issue 6 Pages
448-449
Published: December 25, 2005
Released on J-STAGE: August 11, 2011
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An essay by an engineer on the development of color photography since 1946 is shown. It is also discussed on the ultimate performance of the CCD image sensor for digital cameras by comparison with silver halide photography.
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Masao MATSUMOTO
2005 Volume 68 Issue 6 Pages
450-453
Published: December 25, 2005
Released on J-STAGE: August 11, 2011
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Revolution of digital technology of x-ray images on medical imaging is viewing since the development of newer imaging modality such as computed tomography (CT) in 1972 and the present condition of flat panel detector (FPD) system, which is current acquisition technology for digital imaging systems, is explained in comparison with screen/ film (S/F) system and computed radiology (CR) system.
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Hideaki YOSHIDA
2005 Volume 68 Issue 6 Pages
454-459
Published: December 25, 2005
Released on J-STAGE: August 11, 2011
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While considering that the photographic system is being reformed by digital technology, I show my private view to the question ‘What is changed by the digitalization’, based on my personal impression as a person who has been living in the reformation as both a commoner and a technological expert.
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Tadaaki TANI
2005 Volume 68 Issue 6 Pages
460-461
Published: December 25, 2005
Released on J-STAGE: August 11, 2011
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A note is given on my attitudes to new technologies including digital still cameras.
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Akio HITACHI
2005 Volume 68 Issue 6 Pages
462-463
Published: December 25, 2005
Released on J-STAGE: August 11, 2011
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A silver halide technology, an imaging technology developed and established by many researchers and engineers, has been applied widely in professional as well as consumer industries. This imaging technology has virtually dictated the direction of the developments of the new imaging technologies for a long time, and at the same time trials to replace this technology have also been continued. In this article, from the viewpoint of “replacing the silver halide technology”, a series of trials mainly in professional industries is mentioned.
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Akihiro ARAI
2005 Volume 68 Issue 6 Pages
464-465
Published: December 25, 2005
Released on J-STAGE: August 11, 2011
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Based on the recent trends of camera market and camera technology, a camera designer a camera designer has discussed the changeover from analog cameras to digital.
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Koichi KAWATA
2005 Volume 68 Issue 6 Pages
466-468
Published: December 25, 2005
Released on J-STAGE: August 11, 2011
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The Japanese camera and motorcycle industries had remarkable success globally after the WWII. About 130 to 150 enterprises comprised in each industry in the 1950s, but only a limited number of companies survived through tough competition. However, the condition of the companies which survived is quite different for the two industries. The companies with lengthy experience survived in the camera industry. On the other hand, it was the newcomers who are successful in the motorcycle industry. The difference in the growing processes of both industries and the future camera industry in the digital era are discussed.
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Yoshinari HIRATA
2005 Volume 68 Issue 6 Pages
469-472
Published: December 25, 2005
Released on J-STAGE: August 11, 2011
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As a photograph enthusiast, I explain the reason why I put off switching to Digital SLR camera from Film SLR. Next, I discuss the possibility of making good prints, using film scanners and printers, out of films which did not produce satisfactory prints at DPE stores. I also discuss some advantages of this approach. Lastly, I describe my opinion on equipment requirements.
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Japanese Sensibility Can Recognize the Abundance of Information in the Sliver Halide Imaging
Kenichi MATSUMOTO
2005 Volume 68 Issue 6 Pages
473-475
Published: December 25, 2005
Released on J-STAGE: August 11, 2011
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The progress of digital imaging process has shown a remarkable success in the field of publishing business. Time and cost saving by digital publishing technology has enabled us to publish books of relatively rare but valuable cultural fields, which makes easy to carry cultural heritages to the descendants. However, many indefinable factors such as “wabi” and “sabi” that may inhere on the continual grades between lights and shadows in Japanese traditional culture will be ignored in the digitized image world. We are afraid of the lost of sensitivity to feel the continuous (analogous) change of colors or light and shadows that must be the roots of Japanese culture. Analog Imaging should not be fadeout only because of “anachronism”. This paper will discuss it from the small publishing office.
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Hidehiko NAKANISHI
2005 Volume 68 Issue 6 Pages
476-478
Published: December 25, 2005
Released on J-STAGE: August 11, 2011
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These 20 years, digitalization has been progressing in printing industry. Film-making which is made by applying the technique of the photograph is prevalent in print business. But those processes were performed with manual works. Since digital age began, they have continued to disappear. The time when computers perform any kind of jobs has come. On the contrary, the feeling for color has become poor because we become aware that the color expressed by digital is supposed to be virtual and that each output medium outputs different color. Now we should be able to express real color anywhere by setting standard color.
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Kenji TOYODA
2005 Volume 68 Issue 6 Pages
479-481
Published: December 25, 2005
Released on J-STAGE: August 11, 2011
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Digital innovation has drastically changed article writing for magazines. Especially, debut of digital cameras made preparing photographs and drawings very easy and convenient. However, there are still problems left.
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Nobuyuki NAKAMORI
2005 Volume 68 Issue 6 Pages
482-484
Published: December 25, 2005
Released on J-STAGE: August 11, 2011
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A photograph captures a momentary scene. However, the photograph reminds us the scene of many recollections. From this point of view, there is no difference between analog photograph and digital photograph. Both get back our nostalgic memories, which is the world of analog. On the other hand, I am studying X-rays CT and am treating the digital image chiefly. CT is new visualization and is the image which was not produced without the digital technology. Although improvement of a digital technology is remarkable, we must not forget that the digital technology is based on analog technology.
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Michio NISHIDA
2005 Volume 68 Issue 6 Pages
485-486
Published: December 25, 2005
Released on J-STAGE: August 11, 2011
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This paper describes the advantage of a digital camera in taking pictures of trains. A train moves at a large speed and its maximum speed attains 130km/h, that leads to a fact that a high-speed train moves by 3.6cm when a shutter is opened for 1/1000sec. The method for solving the problem occurring from such a high-speed subject is discussed. In addition, digital cameras have the function to take three different exposured pictures at the same time, namely suitable-exposured, under-exposured and over-exposured pictures. It is also described that this function is very useful to take pictures of trains.
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Yasuteru YAMANO
2005 Volume 68 Issue 6 Pages
487-490
Published: December 25, 2005
Released on J-STAGE: August 11, 2011
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By grace of the improvement of Cooled CCD cameras and Digital cameras, we can easily take astronomical photographs that could not be taken with film cameras. My new subject is to master the technique of digital image processing.
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Yasuteru YAMANO
2005 Volume 68 Issue 6 Pages
491-492
Published: December 25, 2005
Released on J-STAGE: August 11, 2011
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It was hard to take good cat photographs. Now we enjoy taking them, including misshots with digital cameras.
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Yasuteru YAMANO
2005 Volume 68 Issue 6 Pages
493-495
Published: December 25, 2005
Released on J-STAGE: August 11, 2011
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From 18 years ago I have been issuing family paper. Depend on the progress of digital imaging technology I can make them easily now. But I am uneasy about the filing them safely.
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Hiroshi SAIJO
2005 Volume 68 Issue 6 Pages
496-498
Published: December 25, 2005
Released on J-STAGE: August 11, 2011
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Slides and view graphs have been chased away and only video projection with LCD projector occupies the stage of the presentation room. This new presentation method substantially simplified the process and reduced time for preparation, and we may continue polishing the presentation a few minutes before the starting time. The image quality of video projection is, however, becoming worse if compared to the slide projection in the dark room. Both the image contrast and the spatial resolution decreased significantly. When the video projection in the large concert hall is given, one pixel of the focused image is as large as 1 cm or so on the screen, which makes image vague for our eyes.
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Hideyuki MAJIMA
2005 Volume 68 Issue 6 Pages
499-500
Published: December 25, 2005
Released on J-STAGE: August 11, 2011
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Photographs submitted to camera journals have changed with increasing users of digital cameras and ink-jet color printers. Printing and enlargements at home have long been mostly of B/W. However, color prints taken by digital cameras become mainstream very recently with benefits of ink-jet printers, and B/W or color slides that ink-jet printers are not good at decreases significantly. If ink-jet printer can print B/W images, B/W print submission may increase in near future.
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Yoshio SEOKA
2005 Volume 68 Issue 6 Pages
501-504
Published: December 25, 2005
Released on J-STAGE: August 11, 2011
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I have thought for long time storage of photographs as logarithmic scale. Requested length of storage for analog type photographic images is classified as; 10
2 years for those of personal interest, 10
3 to 10
5 years for those of cultural heritage and 10
6 to 10
7 years for those having archeological value.
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Tomomi TAKASHINA
2005 Volume 68 Issue 6 Pages
505-507
Published: December 25, 2005
Released on J-STAGE: August 11, 2011
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Photo organization is now on entering a new stage as digital photos becoming majority. It is a key technology to attach multiple tags to each photo, which enables us to organize photo library with great freedom and gives new viewpoints for photo library. This is effective not only for personal photo organization but for internet photo sharing services. In this manuscript, the author introduces tagging for organization and sharing along with a brief analysis of tagging behavior in a photosharing service.
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Kenichi KUGE
2005 Volume 68 Issue 6 Pages
508-509
Published: December 25, 2005
Released on J-STAGE: August 11, 2011
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Transition of the subjects in laboratory work and practice classes which the second-year students in the departments of image science, and information and image sciences, faculty of engineering, Chiba University study is summarized. The transition also indicates a change from the analogue to the digital.
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Shoji YAMAMOTO, Maiko TSURUSE, Kumiko UEDA, Norimichi TSUMURA, Toshiya ...
2005 Volume 68 Issue 6 Pages
510-517
Published: December 25, 2005
Released on J-STAGE: August 11, 2011
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We propose a new method of image projection to reproduce similar appearance of real object by using the high luminance DLP (Digital Light Processing) type projector. In this projection, the tristimulus values of image corresponding to the absolute tristimulus values of real object are estimated by combination of the PCA-Spline method and the LUT method. The BRDF (Bi-Directional Reflectance Distribution Function) model is also introduced to fix the geometry between the projector and the viewing location of observer. The result shows that the color difference ΔE
94 between the estimated image and the real object was less than 2.0 and the gloss of the object could be reproduced on the mat paper without any difference of appearance in comparison with the imitated coated paper.
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Sharon GERSHONI, Hiroyuki KOBAYASHI
2005 Volume 68 Issue 6 Pages
518-531
Published: December 25, 2005
Released on J-STAGE: August 11, 2011
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In order to examine the roles and interferences of local and global elements in lightness perception and object recognition processes of photographs with meaningful contents, we examined whether contrast discrimination is a response to spatial configuration properties of photographs, or also a function of conceptual contents. In three experiments we compared contrast discrimination performances of observers, when presented with contrast increments applied to discrete tonal regions in greyscales and in several categories of black-and-white photographs of natural scenes. In Experiment 1, observers performed contrast discrimination in grey-scales by rank-order tasks. In Experiments 2 and 3, trained and novice observers performed contrast discrimination of photographs by sortingtasks. We found substantial differences in response to contrast increments, depending on the region, but no significant effect of category. Nevertheless, low performances in shadow region of grey-scales, significantly improved in photographs due to complexity of configuration. We also found differences in performance between photographs of light and night scene.
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Toshiya NAKAGUCHI, Masanori KAWANISHI, Norimichi TSUMURA, Yoichi MIYAK ...
2005 Volume 68 Issue 6 Pages
532-537
Published: December 25, 2005
Released on J-STAGE: August 11, 2011
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Gonio spectral imaging method is significant to record the shape, reflectance spectra, gloss and texture of 3-D object for digital archives. This method, however, takes much time to record the object. In this paper, a new method based on the genetic algorithm is introduced to reduce the taking time by optimizing the configuration of camera and illumination. We confirmed the effectiveness of the method by the computer simulation. We also confirmed the significance of the algorithm by using the developed gonio spectral imaging system based on the result of computer simulation.
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Yusuke OKAWA, Yoshiro MIYAKE, Fumiyuki SHIBA
2005 Volume 68 Issue 6 Pages
538-540
Published: December 25, 2005
Released on J-STAGE: August 11, 2011
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A simple approach for preparing an electrophoretic display with a microcapsule-like structure is proposed. The concept is inspired by the structure of a color photographic medium. An insulating organic solvent, in which electrophoretic particles were incorporated, was dispersed as droplets in an aqueous gelatin solution. A 2-dimensionally dense-packed structure of the oil droplets was formed on a transparent electrode with gelatin as a binder and wall material of the droplets through simply casting and drying the dispersion. The prepared cell exhibited clear optical response to the application of an electric field.
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2005 Volume 68 Issue 6 Pages
546
Published: 2005
Released on J-STAGE: August 11, 2011
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