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Natsuki Yamanobe, Hiromu Onda, Woo-Keun Yoon, Tetsuo Kotoku
Session ID: B04
Published: 2009
Released on J-STAGE: August 25, 2009
CONFERENCE PROCEEDINGS
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Hirotaka Ojima, Yoshitaka Yanai, Libo Zhou, Jun Shimizu
Session ID: B06
Published: 2009
Released on J-STAGE: August 25, 2009
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Cheng Jia, B.Gueta Lounell, Tamio Arai, Ryosuke Chiba, Tsuyoshi Ueyama ...
Session ID: B07
Published: 2009
Released on J-STAGE: August 25, 2009
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Kenta Ishitsu, Masaya Kakumu, Masanori Kawamoto, Naomasa Yamagishi, Ki ...
Session ID: B08
Published: 2009
Released on J-STAGE: August 25, 2009
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Generation of carious grasping motion
Toshiki Fujino, Hiroaki Seki, Yoshitsugu Kamiya, Masatoshi Hikizu
Session ID: B09
Published: 2009
Released on J-STAGE: August 25, 2009
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Kotaro Fujimoto, Yukio Saito
Session ID: B13
Published: 2009
Released on J-STAGE: August 25, 2009
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Seiji Aoyagi, Nobuhiko Hattori, Syo Komai, Masato Suzuki, Masaharu Tak ...
Session ID: B14
Published: 2009
Released on J-STAGE: August 25, 2009
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To develop a practical indoor mobile robot system, invisible marks made of photochromic material are provided to the floor of an indoor environment. Invisible mark is usually colorless and transparent: however, once irradiated by ultraviolet rays from the robot side, it turns red (or green). Thus, by doing color binarization, this mark is easily extracted. By using these floor marks, the area where object exists can be easily extracted, by detecting the occluded marks. In the following image processing, this area is used for template matching based on feature such as SIFT, finally the kind of object can be recognized. Moreover, information profitable for the object recognition can be obtained from how to hide the mark.
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Masami Inada, Yukio Saito
Session ID: B15
Published: 2009
Released on J-STAGE: August 25, 2009
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Kenji Mouri, Hisanobu Masuda, Masahiko Onosato, Fumiki Tanaka, Hiroaki ...
Session ID: B16
Published: 2009
Released on J-STAGE: August 25, 2009
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Naoaki Yokoi, Yasuhiro Kawahara, Hiroshi Hosaka
Session ID: B18
Published: 2009
Released on J-STAGE: August 25, 2009
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Basic performance and prototype characteristics
Manabu Kasahara, Satoru Yoshikawa, Hiroshi Hosaka
Session ID: B19
Published: 2009
Released on J-STAGE: August 25, 2009
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Steady State Characteristics of Precession
Jun Iwasaki, Satoru Yoshikawa, Manabu Kasahara, Hiroshi Hosaka
Session ID: B20
Published: 2009
Released on J-STAGE: August 25, 2009
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(3) Transient characteristics and stability analysis
Kanji Kishimoto, Jun Iwasaki, Manabu Kasahara, Satoru Yoshikawa, Hiros ...
Session ID: B21
Published: 2009
Released on J-STAGE: August 25, 2009
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Kei Uehara, Kouji Matsumoto, Hiroyuki Ogata, Akira Torige
Session ID: B23
Published: 2009
Released on J-STAGE: August 25, 2009
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Wataru Inoue, Ryosuke Kawanishi, Atsushi Yamashita, Toru Kaneko
Session ID: B24
Published: 2009
Released on J-STAGE: August 25, 2009
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Moyuta Isaka, Yoshikazu Kobayashi, Kenji Shirai
Session ID: B25
Published: 2009
Released on J-STAGE: August 25, 2009
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This research purposes an obstacle detection method for a remote control robot. This remote control robot is automatically stopped by the obstacle detection method using outside image data. An obstacle appearing suddenly is detected by the frame difference method. However, this method does not detect when an obstacle stops. Moving and stopping obstacles are detected from haar-like features detection method identifying pre-read features patterns.
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Keiji Takeda, Hideki Aoyama
Session ID: B31
Published: 2009
Released on J-STAGE: August 25, 2009
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In order to employ the designer′s sensitivity and realize high quality designs, CAD systems which can carry out analysis evaluation of design properties quantitatively, and improve design based on the results is required. If the form image of curves and curved surfaces can be evaluated quantitatively and the design form image can be controlled based on the evaluation parameters, this will provide effective design support. In this research, we proposed parameters by which the image of forms can be evaluated quantitatively, and developed a system which constructs design form using the proposed evaluation parameters.
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Shinya Yoshida, Hideki Aoyama
Session ID: B32
Published: 2009
Released on J-STAGE: August 25, 2009
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In this research, it aims at supporting creation or determination of designer in shape design process, and a method to quantify the product shape characteristics by Eigenspace method is proposed. After specifying the peculiar impression of the object shape, intuitive shape modification becomes possible. The change of product shape characteristics is analyzed by the proposed method, and a method to presume product shapes which will be preferred in near feature by customers is developed by estimating the preference change of customers.
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Katsutoshi Ootsubo, Kazuya Kobayashi
Session ID: B33
Published: 2009
Released on J-STAGE: August 25, 2009
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Kenjiro Miura, Ryou Shirahata, Shinichi Agari
Session ID: B34
Published: 2009
Released on J-STAGE: August 25, 2009
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It is known that if the degree of the typical plane Bezier curve is increased infinitely, the curve will converge to the logarithmic (equiangular) spiral. The logarithmic spiral is one of the log-aesthetic curves and they are formulated by α: the slope of the logarithmic curvature graph. In this paper we define the nonstationarily typical Bezier curve by making the transition matrix of the typical Bezier curve nonstationary and dependent on each side of the control polyline and defining the transition matrix in the Frenet frame. We propose a method that generates such a curve that it will converge to a log-aesthetic curve with arbitrary α, and β: the slope of the logarithmic torsion graph in case of space curves, by controlling the relationship between the rotation angle and the scaling factor if its degree of the curve is increased infinitely.
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Masayuki Fukura, Toshiki Hirogaki, Eiichi Aoyama, Seiji Nakamura, Kazu ...
Session ID: B36
Published: 2009
Released on J-STAGE: August 25, 2009
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Satoshi Shibasaki, Hideki Aoyama
Session ID: B37
Published: 2009
Released on J-STAGE: August 25, 2009
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This paper deals with a system to generate texture of wood-grain by simulating tree growing with ″Environmental Information″. ″Environmental Information″ are ″precipitation″, ″temperature″, ″sunlight″ and ″gradient of ground″. A variety of simulated trees are generated from different ″Environmental Information″ and parameters of tree species. Therefore, a variety of wood-grain texture can be obtained by cutting the trunk of various simulated trees.
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Keisuke Kawaguchi, Yui Endo, Satoshi Kanai
Session ID: B38
Published: 2009
Released on J-STAGE: August 25, 2009
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Yui Endo, Satoshi Kanai, Natsuki Miyata, Makiko Kouchi, Masaaki Mochim ...
Session ID: B39
Published: 2009
Released on J-STAGE: August 25, 2009
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Taiga Higuchi, Satoshi Kanai
Session ID: B61
Published: 2009
Released on J-STAGE: August 25, 2009
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Takashi Miura, Satoshi Kanai
Session ID: B62
Published: 2009
Released on J-STAGE: August 25, 2009
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Smoothing
Kouichi Matsuzaki, Hiromasa Suzuki, Yutaka Ohtake
Session ID: B63
Published: 2009
Released on J-STAGE: August 25, 2009
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We continue to develop the Reverse engineering software MOSAIC. The characteristic functions of MOSAIC generate NURBS surface quickly without interactive operation, and output suitable CAD like modeling results. Our method is based on a segmentation method with region growing using plane proxies. We propose a smoothing method for getting high quality segments.
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Feature preserving for a model with bigger noises
Tetsuro Sugiura, Tetsuo Oya, Masakazu Kobayashi, Masatake Higashi
Session ID: B64
Published: 2009
Released on J-STAGE: August 25, 2009
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Study on a vibration-assisted process
Kimiyuki Mitsui, Remi Mukose
Session ID: B66
Published: 2009
Released on J-STAGE: August 25, 2009
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There have been important improvements in the domain of precision engineering in the last years. Because of the advances of machining technologies especially machining accuracy, miniaturization of some industrial products became possible, so that needs on small products has been increasing.Shearing, which is known to be a stable process with a high productivity, still has a large application field but its applications are expected to become more and more important. Many studies on punch processing have been done especially around 1950, but recently, the definition of ″thin sheet metal″ has changed, so there are not enough experiments data on sheet metal which thickness is under 0,5mm (current definition of thin metal sheet). Studies on clearance and tool misalignment have been done in this research and currently, a new processing method – vibration-assisted process – is introduced. The main objective of this study is to make clear the influence of vibrations on manufacturing performances.
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Hiroyuki Hasebe, Jun Goda, Kimiyuki Mitsui
Session ID: B67
Published: 2009
Released on J-STAGE: August 25, 2009
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We have been trying a new spindle system using V-shaped sliding bearing for micro-machine tools. The rotational accuracy of a body rotates on V-shaped sliding bearing is expected to be largely different from ball bearing spindles. However, the measuring results of the bearing has not been reported yet. In this study, the rotational accuracy of the spindle supported by the V-shaped sliding bearing is measured by our optical rotational accuracy measurement device for micro-spindles.
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Toru Nunokawa, Atsunori Kikuchi, Kensuke Tsuchiya, Masayuki Nakao
Session ID: B68
Published: 2009
Released on J-STAGE: August 25, 2009
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Micro cutting characteristics of copper alloy
Hiroyuki Kimura, Kimiyuki Mitsui, Tokio Kitahara
Session ID: B69
Published: 2009
Released on J-STAGE: August 25, 2009
CONFERENCE PROCEEDINGS
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The miniaturization of machine tools has the remarkable energy-saving effect. Thus, research and development of various micro-machine tools for processing micro-components are conducted. However, technological bases of micro-machine tool design methods have not been established yet, and this has been an obstacle of utilization of the micro-machine tools. One of the important subjects in the obstacle is cutting force characteristics in the micro-scale cutting region. In this research, micro-turning processes which utilize the micro-machine tool is considered. As previously reported we obtained the performance of micro turning test device and the measurement method of micro cutting force. In the present report we describe on the micro cutting characteristics of copper alloy using these experiment systems.
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Rentaro Akimoto, Atsushi Yamashita, Toru Kaneko
Session ID: C01
Published: 2009
Released on J-STAGE: August 25, 2009
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Tatsuya Yokota, Masashi Sugiyama, Hidemitsu Ogawa, Katsuichi Kitagawa, ...
Session ID: C02
Published: 2009
Released on J-STAGE: August 25, 2009
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Katsuichi Kitagawa
Session ID: C03
Published: 2009
Released on J-STAGE: August 25, 2009
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Akira Kato, Takahito Moriuchi
Session ID: C04
Published: 2009
Released on J-STAGE: August 25, 2009
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Full-Field measurement of two-dimensional displacement distribution using image correlation technique was investigated. It is necessary to make template matching with the accuracy less than one pixel to measure very small displacement using this technique. Methods of template matching and interpolation of gray level between adjacent pixels was investigated. An interpolation method was proposed using data of gray level change when moving a camera with less than one pixel.
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Yoshie Takahashi, Yoshikazu Kobayashi, Kenji Shirai
Session ID: C06
Published: 2009
Released on J-STAGE: August 25, 2009
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The purpose of this study is to develop a system which sorts various objects, with a view to automating the manipulation of micro-sized objects by manipulator. This System is made to measure positions of various objects using image recognition on the assumption that the CCD camera is placed just above the stage. This system uses a scara hand robot with two degrees of freedom to sort detected objects. In this paper, we propose a measurement of position and sorting technique for using prepared image of object, and report the effectiveness of this system in the experiment.
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Tsuyoshi Ito, Yukio Saito, Okitoshi Tsunoda, Atsushi Umemura, Kengo Oh ...
Session ID: C07
Published: 2009
Released on J-STAGE: August 25, 2009
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Distance measurement method in the direction of depth
Atsushi Kamimura, Munenori Okano, Chisato Kanamori
Session ID: C08
Published: 2009
Released on J-STAGE: August 25, 2009
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The purpose of the research is to develop simple, low-cost and applying to wide region sensor which detects existence and movement of intruders temporally and spatially. The first report shows.
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Yoshito Yabuta, Hiroshi Mizumoto, Shiro Arii, Kazuhiko Imamura, Fumiyu ...
Session ID: C09
Published: 2009
Released on J-STAGE: August 25, 2009
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Development of TIG welding simulator
Nobuyoshi Hashimoto
Session ID: C13
Published: 2009
Released on J-STAGE: August 25, 2009
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Development of manual lathe simulator for parting operation
Nobuyoshi Hashimoto, Yuuki Asano, Susumu Ohishi
Session ID: C14
Published: 2009
Released on J-STAGE: August 25, 2009
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Kenji Terabayashi, Tatsuya Nakanishi, Yuuki Hashimoto, Yuuma Hoshikawa ...
Session ID: C15
Published: 2009
Released on J-STAGE: August 25, 2009
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Ming Fang, Hidenori Takauji, Shunichi Kaneko, Hidemi Watanabe
Session ID: C17
Published: 2009
Released on J-STAGE: August 25, 2009
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Tsuyoshi Shimizu, Yasutake Haramiishi, Nobuyuki Furuya, Shigeki Toyama ...
Session ID: C18
Published: 2009
Released on J-STAGE: August 25, 2009
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Verification of the Principle and Comparison with Surface Roughness
Tadanori Sugino, Yumi Satozono, Yasuo Yamane
Session ID: C19
Published: 2009
Released on J-STAGE: August 25, 2009
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In general, gloss of a metal surface is influenced by specular reflection of light on the surface. Therefore to evaluate the specular reflection is almost the same as the evaluation of the gloss. We propose the method to evaluate the specular reflection using patterned area illumination. In the specular reflection, the angle of incidence equals the angle of reflection. Consequently when lights (rays) of the area illumination which has a stripe pattern are projected to a glossy metal surface, the stripe pattern occurs on the reflection image by the mirror-like reflection and the sharpness of the stripe pattern of the image has information of the specular reflection on the surface. This character is applied for the metal surface with hairline. The metal surface with hairline has different gloss feeling at different point of view. When the direction of the stripe pattern of the illumination is changed, the sharpness of stripe pattern on the reflection image varies owing to the surface roughness of hairline. Therefore we can evaluate the glossiness for various directions by rotating the stripe pattern. This report describes verification of the principle of the method and comparison with surface roughness of the surfaces.
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Keisuke Kobayashi, Akinobu Hayashi, Ryuichi Ueda, Tamio Arai
Session ID: C20
Published: 2009
Released on J-STAGE: August 25, 2009
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Influence of PCB Composite Material on Drill Breakage
Hidehito Watanabe, Hideo Tsuzaka, Masami Masuda
Session ID: C32
Published: 2009
Released on J-STAGE: August 25, 2009
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Effect of entry sheet on hole location accuracy
Kenta Haino, Hidehito Watanabe, Hiromi Yoshimura
Session ID: C33
Published: 2009
Released on J-STAGE: August 25, 2009
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Behavior of grinding force in helical drilling
Akira Mizobuchi, Hitoshi Ogawa, Masahiro Masuda, Hiroaki Miwa
Session ID: C34
Published: 2009
Released on J-STAGE: August 25, 2009
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This paper deals with the effects of helical drilling on the processing efficiency and the crack size in through hole drilling of glass plate with a thickness of 2.83mm using an electroplated diamond tool. In helical drilling, a high feed rate can be adopted, but leads to the larger cracks at the hole exit owing to the larger grinding forces. Three components of grinding force are observed in order to find out drilling conditions satisfied the accuracy and the efficiency, which are investigated from the relationship between the direction of grinding forces and cracks.
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