Multimedia Systems Laboratory

Noriaki Asada Professor	Jung-pil Shin Associate Professor	Hirohide Demura Assistant Professor	Naru Hirata Assistant Professor

Recognition, analysis and expression of images and letters are studied in the multimedia systems laboratory. The 3-D motion and the 3-D shapes of the object are analyzed, understood and expressed by computer from the images taken by multi TV camera or video camera in the study of computer vision and/or the 3-D stereovision. Detailed movies can be seen from any angle through the 3-D video system, which is expected to be applied to many fields such as the sports coaching and the recognition of the human facial expression. The 3-D shape recognition technique of our laboratory from the remote sensing images of an asteroid, Itokawa has guided the asteroid explorer HAYABUSA to succeed landing on Itokawa. In the remote sensing, the category classification technique can analyze the land usages from color information of land images, too. Three laboratory members are engaged in the SELENE project, the Japanese lunar explorer mission, to analyze the lunar mineral composition, geographical structures of lunar surface and crater features, and to investigate the future moon surface land usage. Moreover, by applying this technique to the computer vision, even the living body information of the human being can be known, too. In the remote sensing, the category classification technique can analyze the land usages from color information of land images, too. Three laboratory members are engaged in the SELENE project, the Japanese lunar explorer mission, to analyze the lunar mineral composition, geographical structures of lunar surface and crater features, and to investigate the future moon surface land usage. Moreover, by applying this technique to the computer vision, even the living body information of the human being can be known, too. In the on-line handwriting character recognition system, the fundamental study to use the handwriting letter as the input system of the computer is investigated. The character recognition is one of the most important fields on the image processing. Laboratory members have participated actively in scientific meetings, both in Japan and abroad. They have presented and participated in seminars, and in presentation of scientific results in fully refereed publications. The laboratory is the coordinator for coursework in astronomical observation Department of Computer Software by cooled CCD cameras. Students learn how to use equipment to get some data into computer system, how to process image data, how to analyze these data and how to study the nature through this courseware project. In addition, a coursework of computer Igo game programming is also coordinated in the laboratory. Students can learn how to think and how to recognize the situation in the igo game.

Refereed Journal Papers

[demura-01:2006]	H. Demura, S. Kobayashi, N. Nemoto, E. andMatsumoto, M. Furuya, N. Yukishita, A. andMuranaka, H.Morita, M. Shirakawa, K. and- Maruya, H. Ohyama, T. Uo, M. andKubota, J. Hashimoto, T. and- Kawaguchi, A. Fujiwara, S. Saito, J. andSasaki, H. Miyamoto, and N. Hirata. Pole and Global Shape of 25143 Itokawa. Science, 312(5778):1347-1349, 2006.
[demura-02:2006]	S. Abe, T. Mukai, O. S. Hirata, N. andBarnouin-Jha, H. Cheng, A. F. andDemura, T. Gaskell, R. W. andHashimoto, T. Hiraoka, K. andHonda, M. Kubota, T. andMatsuoka, R. Mizuno, T. andNakamura, and M. Scheeres, D. J. andYoshikawa. Mass and Local Topography Measurements of Itokawa byHayabusa. Science, 312(5778):1344- 1347, 2006.
[demura-03:2006]	J. Saito, H. Miyamoto, R. Nakamura, T. Ishiguro, M. and- Michikami, A. M. Nakamura, S. Demura, H. andSasaki, N. Hirata, C. Honda, Y. Yamamoto, A. andYokota, T. Fuse, F. Yoshida, R. W. Tholen, D. J. andGaskell, T. Hashimoto, Y. Kubota, T. andHiguchi, T. Nakamura, P. Smith, T. Hiraoka, K. andHonda, S. Kobayashi, M. Furuya, E. Matsumoto, N. andNemoto, A. Yukishita, B. Kitazato, K. andDermawan, A. Sogame, C. Terazono, J. andShinohara, and H. Akiyama. Detailed Images of Asteroid 25143 Itokawa fromHayabusa. Science, 312(5778):1341-1344, 2006.
[demura-04:2006]	A. Fujiwara, J. Kawaguchi, D. K. Yeomans, T. Abe, M. and- Mukai, T. Okada, J. Saito, M. Yano, H. andYoshikawa, D. J. Scheeres, A. F. Barnouin-Jha, O. andCheng, H. Demura, R. W. Gaskell, H. Hirata, N. andIkeda, T. Kominato, A. M. Miyamoto, H. andNakamura, R. Nakamura, and K. Sasaki, S. andUesugi. The Rubble-Pile Asteroid Itokawa as Observed byHayabusa. Science, 312(5778):1330-1334, 2006.
[demura-05:2006]	T. Mukai, S. Abe, N. Hirata, O. S. Nakamura, R. andBarnouin- Jha, A. F. Cheng, K. Mizuno, T. andHiraoka, T. Honda, H. Demura, T. Gaskell, R. W. andHashimoto, T. Kubota, D. J. Matsuoka, M. and- Scheeres, and M. Yoshikawa. An overview of the LIDAR observations of asteroid 25143 Itokawa. Advances in Space Research, 40(2):187-192, 2007.
[jpshin-01:2006]	Jungpil Shin Toshihide Tamura. Human Detection System using Stereo Vision. GESTS International Transactions on Computer Science and Engineering, 34(1):66-77, 11 2006.
	This paper presents a human detection system using three-dimensional information obtained through the use of stereo vision. With digital images, the stereo vision algorithm is used to obtain 3D information with disparity maps which indicate how far the objects in images are displaced between the images. To produce smooth and detailed disparity maps, we use a cooperative stereo algorithm that updates the disparity maps iteratively. Using the stereo algorithm, we can determine the distances between captured objects and the cameras. If the cameras are attached onto a ceiling and the objects in the images are captured from overhead, then the distances between the objects and the cameras are able to be recognized. As a result, a system which employs stereo vision can recognize the distance from the cameras to a person�fs head. Generally, the shape of a person�fs head is circular if you see the head from overhead. Therefore the system determines an object as a human if the head region shape of the object is circular.
[jpshin-02:2006]	Miyoung Song Taesoo Chon Wondu Chang, Jungpil Shin. Enhanced Back Propagation Algorithm for Estimating Ecological Data with Missing Values. WSEAS Transactions on Computers, 5(9):2043- 2048, 7 2006.
	Environment awareness of 360 degree is widely used for virtual reality such as virtual model house in the internet. Catadioptric camera is one of environment awareness system which can picture 360 �‹degree image in a single shot. General solution generating panoramic image is using cylindrical projection method, however, it has limitation of viewing angle and upper and lower part of source images cannot be seen with panoramic image. This paper proposes a panoramic image construction technique with less distortion using spherical projection algorithm. Moreover, fast perspective image generation method using spherical projection algorithm is shown.
[jpshin-03:2006]	Wondu Chang Nuha L. Othman, Jungpil Shin. Chain Code Distance: a Global Feature for On-line Signature Verification. WSEAS Transactions on Computers, 5(9):2037-2042, 7 2006.
	In recent years, biometrics is attracting attention and Signature verification is one of the easiest methods to implement among biometrics. There have been many researches on it and the error rate is getting decreases. However, as error rate reduces making performance higher cost more efforts and is getting difficult and some fusion methods have been tried. This paper proposes a new global feature for on-line signature verification, which is named as chain code distance (CCD). The CCD is basically the distance between the segments of the signature and 8 directional vectors. This distance is weighted for the length of the segment, and the short segments are considered less important in this paper. Through the experiments, it is shown that the CCD could be used as a global feature for signature verification. The result was remarkable for English signature and the result for Japanese signature was acceptable also. Although proposed feature itself is not enough as a stand alone verifier, it still shows good performance alone and it is expected that the CCD may drop the error rate with other features or systems.
[naru-01:2006]	S. Abe, T. Mukai, N. Hirata, O. S. Barnouin-Jha, A. F. Cheng, H. Demura, R. W. Gaskell, T. Hashimoto, K. Hiraoka, T. Honda, T. Kubota, M. Matsuoka, T. Mizuno, R. Nakamura, D. J. Scheeres, and M. Yoshikawa. Mass and Local Topography Measurements of Itokawa by Hayabusa. Science, 312:1344-1347, 2006.
	The ranging instrument aboard the Hayabusa spacecraft measured the surface topography of asteroid 25143 Itokawa and its mass. A typical rough area is similar in roughness to debris located on the interior wall of a large crater on asteroid 433 Eros, which suggests a surface structure on Itokawa similar to crater ejecta on Eros. The mass of Itokawa was estimated as (3.58 +/- 0.18) 10!SUP.10!/SUP. kilograms, implying a bulk density of (1.95 +/- 0.14) grams per cubic centimeter for a volume of (1.84 +/- 0.09) 10!SUP.7!/SUP. cubic meters and a bulk porosity of 40which is similar to that of angular sands, when assuming an LL (low iron chondritic) meteorite composition. Combined with surface observations, these data indicate that Itokawa is the first subkilometer-sized small asteroid showing a rubble-pile body rather than a solid monolithic asteroid.
[naru-02:2006]	A. Fujiwara, J. Kawaguchi, D. K. Yeomans, M. Abe, T. Mukai, T. Okada, J. Saito, H. Yano, M. Yoshikawa, D. J. Scheeres, O. Barnouin-Jha, A. F. Cheng, H. Demura, R.W. Gaskell, N. Hirata, H. Ikeda, T. Kominato, H. Miyamoto, A. M. Nakamura, R. Nakamura, S. Sasaki, and K. Uesugi. Rubble-Pile Asteroid Itokawa as Observed by Hayabusa. Science, 312:1330-1334, 2006.
	During the interval from September through early December 2005, the Hayabusa spacecraft was in close proximity to near-Earth asteroid 25143 Itokawa, and a variety of data were taken on its shape, mass, and surface topography as well as its mineralogic and elemental abundances. The asteroid�fs orthogonal axes are 535, 294, and 209 meters, the mass is 3.43 x 10!SUP.10!/SUP. kilograms, and the estimated bulk density is 1.9 +/- 0.13 grams per cubic centimeter. The correspondence between the smooth areas on the surface (Muses Sea and Sagamihara) and the gravitationally low regions suggests mass movement and an effective resurfacing process by impact jolting. Itokawa is considered to be a rubble-pile body because of its low bulk density, high porosity, boulder-rich appearance, and shape. The existence of very large boulders and pillars suggests an early collisional breakup of a preexisting parent asteroid followed by a re-agglomeration into a rubble-pile object.
[naru-03:2006]	H. Demura, S. Kobayashi, E. Nemoto, N. Matsumoto, M. Furuya, A. Yukishita, N. Muranaka, H. Morita, K. Shirakawa, M. Maruya, H. Ohyama, M. Uo, T. Kubota, T. Hashimoto, J. Kawaguchi, A. Fujiwara, J. Saito, S. Sasaki, H. Miyamoto, and N. Hirata. Pole and Global Shape of 25143 Itokawa. Science, 312:1347-1349, 2006.
	The locations of the pole and rotation axis of asteroid 25143 Itokawa were derived from Asteroid Multiband Imaging Camera data on the Hayabusa spacecraft. The retrograde pole orientation had a right ascension of 90.53 and a declination of -66.30 (52000 equinox), or equivalently 128.5 and -89.66 in ecliptic coordinates, with a 3.9 margin of error. The surface area is 0.393 square kilometers, the volume is 0.018378 cubic kilometers with a 5535 meters by 298 meters by 244 meters. The global Itokawa revealed a boomerangshaped appearance composed of two distinct parts with partly faceted regions and a constricted ring structure.
[naru-04:2006]	N. Hirata and A. M. Nakamura. Secondary craters of Tycho: Sizefrequency distributions and estimated fragment size-velocity relationships. Journal of Geophysical Research (Planets), 111:03005, 2006.
	We examined the size-frequency distribution and the spatial distribution of secondary craters around the lunar crater Tycho. Secondary crater diameters were found to range from 0.55 to 4.0 km, and their distance from Tycho to range from 130 to 370 km. The diameter and ejection velocity of the secondary-forming fragments were also estimated from the crater size and the distance from the primary using the scaling relationships for cratering. The power law index of the size-frequency distribution of the Tycho secondary craters ranges from 3.3 to 4.0, the same as the steep slope of the typical sizefrequency distribution for lunar craters of less than 4 km diameter. The decay index of secondary crater densities with distance from the primary craters is not constant and is small at large distances (less than 2.5 for r . 2.5R). The total number of secondaries forming ejecta fragments is more than twice larger than for other lunar primaries previously studied. These results imply that there are many small secondary craters in fields far from the primary crater. A dominant contribution of secondaries to the size-frequency distribution of all lunar craters is thus strongly suggested. The index range of 2.6 to 3.0 for estimated fragment size distributions is not only close to other natural and experimental craters, but also to those of blocks on asteroids. The relative fragment size distributions are independent of the ejection velocity. This result is the first observational confirmation of the theoretical assumption, and agrees with a recent result from laboratory experiments.
[naru-05:2006]	J. Saito, H. Miyamoto, R. Nakamura, M. Ishiguro, T. Michikami, A. M. Nakamura, H. Demura, S. Sasaki, N. Hirata, C. Honda, A. Yamamoto, Y. Yokota, T. Fuse, F. Yoshida, D. J. Tholen, R. W. Gaskell, T. Hashimoto, T. Kubota, Y. Higuchi, T. Nakamura, P. Smith, K. Hiraoka, T. Honda, S. Kobayashi, M. Furuya, N. Matsumoto, E. Nemoto, A. Yukishita, K. Kitazato, B. Dermawan, A. Sogame, J. Terazono, C. Shinohara, and H. Akiyama. Detailed Images of Asteroid 25143 Itokawa from Hayabusa. Science, 312:1341-1344, 2006.
	Rendezvous of the Japanese spacecraft Hayabusa with the near-Earth asteroid 25143 Itokawa took place during the interval September through November 2005. The onboard camera imaged the solid surface of this tiny asteroid (535 meters by 294 meters by 209 meters) with a spatial resolution of 70 centimeters per pixel, revealing diverse surface morphologies. Unlike previously explored asteroids, the surface of Itokawa reveals both rough and smooth terrains. Craters generally show unclear morphologies. Numerous boulders on Itokawa�fs surface suggest a rubble-pile structure.

Refereed Proceeding Papers

[demura-06:2006]	H. Demura, R. Gaskell, N. Hirata, S. Miyamoto, H. and- Sasaki, D. Scheeres, and J. andGeomorphology Group of Hayabusa Saito. Global Shape and General Geology of Itokawa. In 38th Lunar and Planetary Science Conference, (Lunarand Planetary Science XXXVIII), page 2309. Lunar and Planetary Institute, 2007.
	Global shape and general geology of (25143) Itokawa.
[demura-07:2006]	N. Hirata, C. Honda, R. Nakamura, S. Miyamoto, H. andSasaki, H. Demura, T. Nakamura, A. M. andMichikami, O. S. Barnouin-Jha, and J. Gaskell, R. W. andSaito. Survey of Craters and Impact Stractures on the Asteroid Itokawa. In 38th Lunar and Planetary Science Conference, (Lunarand Planetary Science XXXVIII), page 1572. Lunar and Planetary Institute, 2007.
	Craters on the asteroid 25143 Itokawa were surveyed. Their morphologiesshow a wide variation, including a saddle-shaped floor plan, lack ofuplifting rim, both rough and smooth floor, exposure of un-weatheredmaterials and lineaments.
[demura-08:2006]	Y. Fujii, N. Hirata, H. Demura, and N. Asada. Visualization Tool for 3D GIS Data. In 38th Lunar and Planetary Science Conference, (Lunarand Planetary Science XXXVIII), page 1521. Lunar and Planetary Institute, 2007.
	We develop a tool for visualization of a 3D figure, which is modeledwith polygons. Several kinds of physical values (e.g., slope) areattributed to the polygons. The displayed model can be rotated and movedby mouse operation.
[demura-09:2006]	Y. Hamada, H. Demura, N. Hirata, and N. Asada. Preliminary Study of Stereo Vision with Fisheye LensCameras on Asteroids. In 38th Lunar and Planetary Science Conference, (Lunarand Planetary Science XXXVIII), page 1519. Lunar and Planetary Institute, 2007.
	This research shows advantages of stereovision with fisheye lens camerasfor close-observation missions to asteroids, and a method to determinethreedimensional locations of objects on the asteroid surface fromstereo pair images taken by the camera.
[demura-10:2006]	N. Harada, T. Karino, N. Hirata, H. Demura, and N. Asada. Recognition Algorithm for Craters, Ridges, and Grabens. In 38th Lunar and Planetary Science Conference, (Lunarand Planetary Science XXXVIII), page 1451. Lunar and Planetary Institute, 2007.
	This goal is development of recognition algorithm for craters, ridges, and grabens. This algorithm has been improved with trial production.Current performance for detecting features competes with the appearanceof beginners of geological mappers.
[demura-11:2006]	M. Kanzawa, N. Hirata, H. Demura, and N. Asada. Development of a Image Processing SoftwareSupporting Collaborative Works with Thematic Maps. In 38th Lunar and Planetary Science Conference, (Lunarand Planetary Science XXXVIII), page 1259. Lunar and Planetary Institute, 2007.
	We developed software to satisfy a general purpose of common meetings, and not adequate for the scientific online discussions on the planetaryremote sensing data.
[demura-12:2006]	S. Sasaki, M. Ishiguro, N. Hirata, M. Hiroi, T. andAbe, S. Abe, H. Miyamoto, A. Saito, J. andYamamoto, H. Demura, K. Kitazato, and R. Nakamura. Origin of Surface Albedo/Color Variation on Rubble- Pile Itokawa. In 38th Lunar and Planetary Science Conference, (Lunarand Planetary Science XXXVIII), page 1293. Lunar and Planetary Institute, 2007.
	S-type asteoroid Itokawa is heterogeneous in albedo and color. Also fromsurface morphology and experiments, we conclude darker-redder zonesexperienced more space weathering than brighter-bluer. The variation maybe produced by seismic shaking.
[demura-13:2006]	C. Honda, T. Morota, Y. Yokota, M. Haruyama, J. andOhtake, T. Matsunaga, Y. Ogawa, N. Demura, H. andHirata, A. Iwasaki, S. Kodama, and K. Hara, S. andHioki. Preliminary Test of Accuracy of Digital TerrainModel Derived from SELENE/LISM/TC Data. In 38th Lunar and Planetary Science Conference, (Lunarand Planetary Science XXXVIII), page 1899. Lunar and Planetary Institute, 2007.
	We evaluated the standard deviation of difference between DTMs producedfrom SELENE/LISM/TC data and true value of DTM which is simulated at5-16 m and 5-25 m for highland and mare terrain, respectively.
[demura-14:2006]	Y. Yokota, J. Haruyama, M. Ohtake, C. Matsunaga, T. and- Honda, T. Morota, H. Demura, and N. andLism Working Group Hirata. Kilometer Scale Roughness Analysis of Lunar DigitalTerrain Model. In 38th Lunar and Planetary Science Conference, (Lunarand Planetary Science XXXVIII), page 2430. Lunar and Planetary Institute, 2007.
	We demonstrate the root mean square deviation method as an indicator oftopographic roughness on a kilometer scale, using stereo images from anApollo Mapping Camera in a Digital Terrain Model, and compare threeregions in the lunar highlands.
[demura-15:2006]	N. Asada, K. Kimura, T. Hodokuma, N. Demura, H. andHirata, M. Ohtake, J. Haruyama, and T. Matsunaga. Detection Possibility of Mantle Materials by Multi-Band Imager. In 38th Lunar and Planetary Science Conference, (Lunarand Planetary Science XXXVIII), page 1261. Lunar and Planetary Institute, 2007.
	Multi-band Imager on SELENE is possible to detect or separate theoutcrop of the mantle substance at the crater walls or the cratercentral peaks from regoliths.
[jpshin-04:2006]	Wondu Chang Nuha L. Othman, Jungpil Shin. A Global Feature for On-line Signature Verification. In Nikos Mastorakis, editor, 10th WSEAS International Confernece on COMPUTERS, pages 340-344, Athens, July 2006. World scicence, World science Press.
	As reported in many researches, the performance of signature verification is quite high in these days. However, as error rate reduces making performance higher cost more efforts and is getting difficult. This paper proposes a new global feature for on-line signature verification, which can be used in addition to the other system. The proposed feature, named chain code distance (CCD) represents signature shape using the vector quantization. A signature is divided into several segmentation and feature points are selected through the process. Then proposed feature is calculated by extracting information from each segment. Experimental results show that the proposed feature can be used as a global feature. The number of included genuine signatures increases rapidly as the threshold increases, but the number of forged signature increases linearly. The experimental result was remarkable for English signature and the result for Japanese signature was acceptable also. Proposed global feature is expected to increase the performance of the verification system when it is used with other methods in future works.
[jpshin-05:2006]	Wondu Chang and Jungpil Shin. Missing Data Handling in Multi- Layer Perceptron. In Nikos Mastorakis, editor, 10th WSEAS International Confernece on COMPUTERS, pages 631-636, Athens, July 2006. World scicence, World science Press.
	Multi layer perceptron with back propagation algorithm is popular and more used than other neural network types in various fields of investigation as a non-linear predictor. Though MLP can solve complex and non-linear problems, it cannot use missing data for training directly. We propose a training algorithm with incomplete pattern data using conventional MLP network. Focusing on the fact that BP algorithm uses the amount of the error and its sign to modify the weights, we redefined the activation function using the minimum error for incomplete pattern and modified stopping criterion is also presented. The estimation results using proposed algorithm are shown compared to the result of MLP replacing. Proposed algorithm could learn from incomplete patterns successfully and could avoid biased learning from misestimating of missing values.
[demura-06:2006]	H. Demura, R. Gaskell, N. Hirata, S. Miyamoto, H. and- Sasaki, D. Scheeres, and J. andGeomorphology Group of Hayabusa Saito. Global Shape and General Geology of Itokawa. In 38th Lunar and Planetary Science Conference, (Lunarand Planetary Science XXXVIII), page 2309. Lunar and Planetary Institute, 2007.
	Global shape and general geology of (25143) Itokawa.
[jpshin-06:2006]	Wondu Chang and Jungpil Shin. Paused Object Detection with Background Updating. In Proceedings of the 9th International Conference on Humans and Computers (HC-2006) and the 7th International Symposium on Spatial Media (ISSM-2006), pages 13-18, Aizu Univ., Sep 2006.
	Background subtraction algorithm is one of two main methods of extracting object from the image sequence. It has a merit of being able to detect much region of objects region clearly even when the object is paused where the background image is known to the computer, while the method based on frame difference algorithm can detect moving region only. In real world application, however, background is continuously changing and it makes harder to extract the stable background image. Though there have been researches on extracting background, most of them are focused on updating the background and lost its own merit of detecting paused object. In this paper, we propose a method to detect paused object updating background image continuously. After obtaining the first background image, the image regions are classified into three groups of moving, paused and non-moving region using background subtracting and frame difference algorithms. Consequently, background updating is applied differently for each group region. Paused moving regions are updated only with average changing amount of illuminance, while general method is applied for the non-moving region. Through the experiment, proposed algorithm is able to detect paused object without interfering the detection of other moving objects, while the background image is continuously updated.
[jpshin-07:2006]	Wondu Chang Atsushi Takeda, Jungpil Shin. Modeling Scratchiness Effect of Oriental Writing Brush. In 2006 IEEE International Conference on Computer and Information Technology, pages 121-126, Seoul, Korea, Sep 2006. IEEE, IEEE.
	Oriental ink writing consists of simple strokes intended to convey an artist�fs �Odeep feelings . that makes it to be regarded as a painting. Scratchiness in Japanese Kasure is one of the techniques which can express writer�fs emotion remarkably in calligraphy. A novel method to express Kasure focused on the change of the energy is proposed in this paper. An equation is designed to simulate oriental drawing. The ink in the brush permeates into a paper according to the equation which concerns the brush speed and volume of paper where the brush touches. Besides energy transmission equation, the droplets model is described in this paper to implement Kasure. The entire stroke area is assumed as the trail the droplets have swept. The hull of separated droplets elegantly expresses the scratchiness. We introduce the line form scratchiness segment as a basic unit for filling the between the droplets. The line shape components we propose is suited for expressing scratchiness.We present some examples of scratchiness as the results, and the emotion such as power and passion of the writer is expressed by proposed method.
[naru-06:2006]	N. Asada, K. Kimura, T. Hodokuma, H. Demura, N. Hirata, M. Ohtake, J. Haruyama, and T. Matsunaga. Detection Possibility of Mantle Materials by Multi-Band Imager. In Lunar and Planetary Institute Conference Abstracts, volume 38, page 1261, 2007.
	Multi-band Imager on SELENE is possible to detect or separate the outcrop of the mantle substance at the crater walls or the crater central peaks from regoliths.
[naru-07:2006]	H. Demura, R. Gaskell, N. Hirata, H. Miyamoto, S. Sasaki, D. Scheeres, J. Saito, and Geomorphology Group Of Hayabusa. Global Shape and General Geology of Itokawa. In Lunar and Planetary Institute Conference Abstracts, 2007.
	Global shape and general geology of (25143) Itokawa.
[naru-08:2006]	M. Kanzawa, N. Hirata, H. Demura, and N. Asada. Development of a Image Processing Software Supporting Collaborative Works with Thematic Maps. In Lunar and Planetary Institute Conference Abstracts, volume 38, page 1259, 2007.
	We developed software to satisfy a general purpose of common meetings, and not adequate for the scientific online discussions on the planetary remote sensing data.
[naru-09:2006]	N. Harada, T. Karino, N. Hirata, H. Demura, and N. Asada. Recognition Algorithm for Craters, Ridges, and Grabens. In Lunar and Planetary Institute Conference Abstracts, volume 38, page 1451, 2007.
	This goal is development of recognition algorithm for craters, ridges, and grabens. This algorithm has been improved with trial production. Current performance for detecting features competes with the appearance of beginners of geological mappers.
[naru-10:2006]	Y. Fujii, N. Hirata, H. Demura, and N. Asada. Visualization Tool for 3D GIS Data. In Lunar and Planetary Institute Conference Abstracts, volume 38, page 1521, 2007.
	We develop a tool for visualization of a 3D figure, which is modeled with polygons. Several kinds of physical values (e.g., slope) are attributed to the polygons. The displayed model can be rotated and moved by mouse operation.
[naru-11:2006]	Y. Hamada, H. Demura, N. Hirata, and N. Asada. Preliminary Study of Stereo Vision with Fisheye Lens Cameras on Asteroids. In Lunar and Planetary Institute Conference Abstracts, volume 38, page 1519, 2007.
	This research shows advantages of stereovision with fisheye lens cameras for close-observation missions to asteroids, and a method to determine threedimensional locations of objects on the asteroid surface from stereo pair images taken by the camera.
[naru-12:2006]	N. Hirata, C. Honda, R. Nakamura, H. Miyamoto, S. Sasaki, H. Demura, A. M. Nakamura, T. Michikami, O. S. Barnouin-Jha, R. W. Gaskell, and J. Saito. Survey of Craters and Impact Stractures on the Asteroid Itokawa. In Lunar and Planetary Institute Conference Abstracts, 2007.
	Craters on the asteroid 25143 Itokawa were surveyed. Their morphologies show a wide variation, including a saddle-shaped floor plan, lack of uplifting rim, both rough and smooth floor, exposure of un-weathered materials and lineaments.

Unrefereed Papers

[asada-01:2006]	Noriaki Asada. Computer World (in Japanese). Joho Tsusin i- Net, 16:2-5, 5 2006.
[asada-02:2006]	N. Asada. Infrared Spectra of Annealed Synthetic Silicates. In C. Kaito and N. Asada, editors, Grain Formation Workshop, volume 24, pages 47-54, 11 2004.
	It becomes possible to discuss about mineral species and compositions of circum-stellar dust grains in each astronomical objects, since detailed structures of 10micron silicate bands become possible to be clarified because of the great progress of observational instruments. Relationships between infrared spectra of interstellar dust grains and synthetic silicate minerals are considered, which are synthesized in solution and annealed in various conditions in composition, temperature and environment.
[asada-03:2006]	N. Asada. Hayabusa Project and 3D Modeling of Itokawa. In C. Kaito and C. Koike, editors, Grain Formation Workshop, volume 25, pages 207-212, 12 2005.
	Itokawa is extremely small and lighter than all astrophysical objects visited by current spacecrafts such as planets, satellites, asteroids and comets. The action of Hayabusa is near a free sailing motion because Itokawa is too light, while each previous spacecraft enters the circular orbit and the inertia system around the target object. However, it is not easy to secure the landing orbit to receive the influence by no negligible gravity from Itokawa when Hayabusa approaches or lands on Itokawa. It is not an exaggeration to say that succession of Hayabusa landing on Itokawa owed precision of 3D shape model of Itokawa made by University of Aizu group and realization of accurate calculation of local gravity. In addition, development of a free sailing navigation tool was one of the key technology to facilitate succession of landing.
[demura-16:2006]	S. Sasaki, M. Ishiguro, H. Demura, T. Hirata, N. andHiroi, M. Abe, S. Abe, H. Miyamoto, A. Saito, J. andYamamoto, K. Kitazato, and R. Nakamura. Brightness/Color Variation on Itokawa: SpaceWeathering and Seismic Shaking. In Workshop on Spacecraft Reconnaissance of Asteroidand Comet Interiors October 5-6, 2006, Santa Cruz, California., pages 70-71. Lunar and Planetary Institute, 2006.
[demura-17:2006]	R. W. Gaskell, O. Barnouin-Jha, T. Scheeres, D. andMukai, S. Abe, J. Saito, T. Ishiguro, M. andKubota, T. Hashimoto, M. Kawaguchi, J. andYoshikawa, K. Shirakawa, N. Kominato, T. and- Hirata, and H. Demura. Characterizing and Navigating Small Bodies withImaging Data. In Workshop on Spacecraft Reconnaissance of Asteroidand Comet Interiors October 5-6, 2006, Santa Cruz, California., pages 31-32. Lunar and Planetary Institute, 2006.
[demura-18:2006]	M. Yoshikawa, H. Yano, J. Kawaguchi, M. Fujiwara, A. and- Abe, T. Iwata, Y. Kawakatsu, O. Tanaka, S. andMori, T. Yoshimitsu, Y. Takagi, T. Demura, H. andNoguchi, and H.Miyamoto. Technologies for Future Asteroid Exploration: WhatWe Learned from Hayabusa Mission. In Workshop on Spacecraft Reconnaissance of Asteroidand Comet Interiors October 5-6, 2006, Santa Cruz, California., page 81. Lunar and Planetary Institute, 2006.

Grants

[demura-19:2006]	H. Demura. Japan Science and Technology Agency, Seeds Hakkutsu Shiken #03-065, 2006.
[jpshin-08:2006]	Jungpil Shin. Japanese Ministry of Education Grant-in-Aids for Encouragement of Young Scientists, 2005-2008.

Academic Activities

[demura-20:2006]	H. Demura, 2006. Editorial Board of The Japanese Society for Planetary Sciences
[jpshin-09:2006]	Jungpil Shin, Dec. 2006. Member of the Program Committee, The 2006 International Conference on Machine Learning and Applications
[jpshin-10:2006]	Jungpil Shin, Sept. 2006. Publicity Chair and Member of the Program Committee, 2006 IEEE International Conference on Computer and Information Technology
[jpshin-11:2006]	Jungpil Shin, Sept. 2006. Member of the Program Committee, The 18th IEEE International Conference on Tools with Artificial Intelligent (ICTAI-�f06)

Patents

[asada-04:2006]

Noriaki Asada. Interpolation Method, Patent No. 3249956, November 2001.

Ph.D and Other Theses

[asada-05:2006]	Shingo Kobayashi. Master thesis: 3D Shape Recognition of the Asteroid Itokawa, University of Aizu, March 2006. Thesis advisor: N. Asada, Co-referees: R. Oka and J. Shin
[asada-06:2006]	Naoya Matsumoto. Master thesis: Automatic Recognition of Planetary Craters, University of Aizu, March 2006. Thesis advisor: N. Asada, Co-referees: R. Oka and J. Shin
[asada-07:2006]	Hideyuki Shibata. Master thesis: Longitudinal Study of Motor Pattern Generation in Kindergartener�fs Jumping Motion, University of Aizu, March 2006. Thesis advisor: N. Asada, Co-referees: T. Hayashi and J. Shin
[asada-08:2006]	Etsuko Nemoto. Master thesis: Inflight Calibration of AMICA, a multiband imaging camera on HAYABUSA, University of Aizu, March 2006. Thesis advisor: N. Asada, Co-referees: S. D. Tripp and H. Kanda
[asada-09:2006]	Akira Yukishita. Master thesis: Development of lunar and planetary CIS dadtabase system, University of Aizu, March 2007. Thesis advisor: N. Asada, Co-referee; R. Oka and W. Chen
[jpshin-12:2006]	Atsushi Takeda. Master Thesis: Scratchiness Expression Focused on Ink Concentration of Oriental Pen, University of Aizu, 2005. Thesis Advisor: Jungpil Shin
[jpshin-13:2006]	Ryouta Saitou. Graduation Thesis: Simulating Oriental Brush Painting with Pen-Tablet, University of Aizu, 2005. Thesis Advisor: Jungpil Shin
[jpshin-14:2006]	Mamiko Tano. Graduation Thesis: Tracking of multiple moving object using Snakes, University of Aizu, 2005. Thesis Advisor: Jungpil Shin
[jpshin-15:2006]	Kazuomi Oota. Graduation Thesis: Adding Variability to Improve Generation of Handwriting-Style Fonts, University of Aizu, 2005. Thesis Advisor: Jungpil Shin
[jpshin-16:2006]	Yuuta Nagano. Graduation Thesis: Improvement of Chinese Character Study System Using Threshold, University of Aizu, 2005. Thesis Advisor: Jungpil Shin

Others

[demura-21:2006]	H. Demura. Arrangement for contracting the memorandum between UoA and ISAS/JAXA regarding on promotional use of SELENE exploratory data.
	The memorandum between UoA and ISAS/JAXA was contracted in Mar. 16, 2007. SELENE is abbreviation of �fSELenological and ENgineering Explore�f, its promoted name is �fKabuya�f to the Moon.

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