医療情報・医用画像工学研究室(認識と学習、パターン情報工学) 本文へジャンプ
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2007年4月,早川吉彦が北見工業大学情報システム工学科に着任して,装いも新たにした研究室です。
Medical Image Processing Laboratory (officially ‘Recognition and Learning’ Laboratory) was renewed on April 2007 when Dr. Yoshihiko Hayakawa was promoted as an associated professor of Dept. of Computer Science, Kitami Institute of Technology.

研究室は「知能情報工学講座」(学科の先生方をふたつの講座に分けた場合。もうひとつは「情報数理工学講座」)に属し,名称は「認識と学習・研究室」とす るべきであるようです。あるいは「パターン認識・研究室」と書かれている場合もあります。
When all faculties of the Department of Computer Sciences were divided into two groups, applied mathematics and intelligent system engineering, our laboratory belongs to the latter division. Our laboratory should be formally called as the Recognition and Learning Laboratory. Sometimes other name, the Pattern Recognition Laboratory, is used.

5階の実験室の入り口には「パターン情報工学実験室」と書いてありますが,これは小講座制時代の名残の表示であると伺いました。少々混乱しているようで す。
You can see the display of ‘Pattern Information Engineering Laboratory’ at the entrance of our laboratory room on the 5th floor. This is the legacy name when the department had the traditional individual division system. A bit of complication can be seen.

しかしながら,何をしようとしているのか,ということを端的に表せば,正式には使えないかもしれませんが「医用画像処理研究室」ということでいいかなと思 います。学生さんは張り切っていますので,「新・医用画像処理研究室」って書くかもしれませんが...お許しくださいませ。
However, in order to express what we want to work at, namely concisely related to our value and mission, the appropriate name is the Medical Image Processing Laboratory, even if we can not use it officially. Since students are getting an extra-hustle on starting something new, they want to write it as ‘New’ Medical Image Processing Laboratory...please allow them...

大学案内・大学院案内に記載されていることを勝手に変更するわけにはいきませんのでこのような説明になります。
Official name is ‘Recognition and Learning’ Laboratory in the
Information and Communication Engineering (Master course) / Intelligent Systems Design Engineering (Doctor Course) Division as you can see the University and Graduate School Guidance books. We can not change the laboratory name on our own decision.

面倒な場合は,格好よくないですが「早川研究室」と呼びましょうか。
For avoiding a bother, please call Hayakawa Laboratory. But it’s not smart...

とりあえず,原田康浩先生らによる「光工学研究室」のホームペイジのスタイルを身近な目標にして,楽しく作っていこうかと思います。当研究室における研究 活動,講義・実習や出来事などを提供していきたいと考えています。「コンテンツをどのように工夫したら多くの皆さんにみていただけるのだろう」と考えなが ら,徐々に充実させていきたいと思います。よろしくお願い致します。
Meanwhile, we want to create the website of our laboratory as the quasi-(pseudo-)imitation of the Optical Engineering Laboratory (OELab) maintained by Dr. Y. Harada, Dr. Y. Sone, and students. Sorry, but it’s a good immediate target. We want enjoy the building the website. Research activities, lectures and exercises, and occasional affairs will be contents of our website. We want to make rich the contents according to the strategy for getting a lot of web-page viewers (explorers), by being academic with delight.
Thank you very much for your comments and advices in advance.

早川 吉彦
Yoshihiko Hayakawa

プロフィール Profile

早川吉彦(はやかわよしひこ)・研究分野と論文-
 Yoshihiko Hayakawa - academic research field and archives

 氏名: 早川 吉彦(はやかわ よしひこ)
     First & Last Name: Yoshihiko Hayakawa
 研究分野(academic research field): 
      医用ディジタル画像工学,Medical Image Processing
      バイオダイナミクス,Biodynamics
      他

 主な論文・著書(Archives):
      北見工業大学のホームページから
      研究案内(研究者総覧)へ
    http://www.kitami-it.ac.jp/cgi-bin/WebObjects/souran

 所属学会(Academic Societies):
       International Association of Dentomaxillofacial
       Radiology(IADMFR)
       International Congress of Computer Assisted
       Radiology & Surgery (CARS)
       日本医学放射線学会(1997-2010)
        Radiological Society of Japan、
       日本歯科放射線学会
        Oral & Maxillofacial Radiology、
       日本医学物理学会 Medical Physics、
       医用画像情報学会 Medical Image Infomation、
       日本医用画像工学会 Medical Imaging Technology、
       電子情報通信学会(情報・システム・ソサイエティ)
        IEICE, Information System Society
イメージ





- 国際会議における発表のリスト(1988-present)

International Congress of Dentomaxillofacial Radiology (ICDMFR) 1988
1. Hayakawa Y, Fujimori H and Kuroyanagi K: Absorbed doses effected by various technical parameters in intraoral radiography. Dentomaxillofacial Radiology, Suppl.10: 10, 1988(The 8th International Congress of Dento-Maxillo-Facial Radiology, San Antonio, TX, USA)
2. Wakoh M, Hayakawa Y and Kuroyanagi K: Ghost image positions in rotational panoramic radiography.  Dentomaxillofacial Radiology, Suppl.10 : 122, 1988(The 8th International Congress of Dento-Maxillo-Facial Radiology, San Antonio, TX, USA)

American Academy of Dental Radiology (AADR) 1989
3. Yamamoto K, Wakoh M, Hayakawa Y, Ueno H, Nisikawa K and Kuroyanagi K: Three-dimensional computed tomographic reconstructions of Middle Third Facial Fractures. Abstracts of Scientific Sesion: 22, 1989 (40th Annual Meeting American Academy of Dental Radiology, Honolulu, USA)
4. Hayakawa Y, Wakoh M, Yamamoto K, Ueno H and Kuroyanagi K: Removal of redundant shadows from rotational panoramic radiography. Abstracts of Scientific Sesion: 24, 1989 (40th Annual Meeting American Academy of Dental Radiology, Honolulu, USA)
5. Wakoh M, Nisikawa K, Yamamoto K, Hayakawa Y, Ueno H and Kuroyanagi K: Comparison of spatial resolution between ghost and superimposed tomographic image. Abstracts of Scientific Sesion: 25, 1989 (40th Annual Meeting American Academy of Dental Radiology, Honolulu, USA)

International Congress of Dentomaxillofacial Radiology (ICDMFR) 1991
6. Hayakawa Y, Wakoh M, Yamamoto K, Ueno H, Fujimori H and Kuroyanagi K: Digital filtering adapted to the reduction of redundant shadows in rotational panoramic radiography. Dentomaxillofacial Radiology, Suppl.11: 40, 1991 (9th International Congress of Dentomaxillofacial Radiology, Budapest, Hungary)

1992年は,日本歯科放射線学会総会に。Dr. Allan G. Farman (Univ. of Louisville, USA)とDr. Stuart C. White (UCLA, USA)を招へい。
European Congress on Dental and Maxillofacial Radiology (ECDMFR) 1993
7. Hayakawa Y, Fujimori H and Kuroyanagi K: A comparative study of the alteration of radiation quality caused by various K-edge filters in intraoral radiography. Abstracts: 48, 1993  (The 4th European Congress on Dental and Maxillofacial Radiology, Torino, Italy)
American Academy of Oral and Maxillofacial Radiology (AAOMFR) 1993
8. Hayakawa Y, Fujimori H and Kuroyanagi K: Digital image   processing and archives in computed rotational panoramic radiography. Abstracts: 3, 1993 (44th Annual Meeting American Academy of Oral and Maxillofacial Radiology, San Francisco, CA, USA)
International Congress of Dentomaxillofacial Radiology (ICDMFR) 1994
9. Hayakawa Y, Shibuya H, Ohta Y and Kuroyanagi K: Clinical utility and technical properties of digital intraoral radiography system. Abstracts: 77, 1994 (10th International Congress of Dentomaxillofacial Radiology, Seoul, Korea)
10. Shibuya H, Hayakawa Y and Kuroyanagi K: Response of the Sens-A-Ray system CCD sensor to x-rays. Abstracts: 138, 1994 (10th International Congress of Dentomaxillofacial Radiology, Seoul, Korea)

  #11-#16:ルイビル大学滞在中
American Association for Dental Research (AADR) 1995
11. Hayakawa Y1, Farman AG1, Scarfe WC1, Kuroyanagi K2 and Molteni R3 (1. Univ. of Louisville, 2. Tokyo Dental College, 3. Gendex Dental Systems srl): Tube Voltage and Image Contrast with the VIXA System. Journal of Dental Research 74 (Special Issue) :19, 1995 (24th Annual Meeting of American Association for Dental Research, San Antonio, TX, USA)
International Symposium and Exhibition of Computer Assisted Radiology (CAR) 1995
12. Hayakawa Y1, Farman AG1, Scarfe WC1, Kuroyanagi K2 and Schick DB3 ( 1. University of Louisville, 2. Tokyo Dental College , 3. Schick Technologies, Inc. ): Optimum exposure at various settings of tube voltage with the CDR system. Proceedings of the International Symposium: 996-1001, 1995 (9th International Symposium and Exhibition of Computer Assisted Radiology, Berlin, Germany)
American Academy of Oral and Maxillofacial Radiology (AAOMFR) 1995
13. Eraso FE1, Scarfe WC1, Hayakawa Y2, Smith M3, Harris N3, and Farman AG1 (1. Univ. of Louisville, 2. Tokyo Dental College, 3. Panoramic Corporation): Image layer characteristics of a new rotational panoramic machine. Abstracts: 60, 1995 (46th Annual Session of American Academy of Oral and Maxillofacial Radiology, Chicago, IL,  USA)
14. Hayakawa Y1, Farman AG1, Scarfe WC1 and Kuoryanagi K2  (1. Univ. of Louisville, 2. Tokyo Dental College): Image processing for instant high-contrast images : two digital intraoral radiographic systems compared. Abstracts: 94: 1995 (46th Annual Session of American Academy of Oral and Maxillofacial Radiology, Chicago, IL, USA)
International Association for Dental Research (IADR) 1996
15. Hayakawa Y1, Farman AG1, Eraso FE1, Scarfe WC1, Nishikawa K2, Kuroyanagi K2 and Smith M3 (1. Univ. of Louisville, 2. Tokyo Dental College, 3. Panoramic Corp.): MTF analysis of panoramic radiography using new PC-1000. Journal of Dental Research 75 (Special Issue): 367, 1996. (74th General Session and Exhibition of the International  Association for Dental Research, San Francisco, CA, USA)
Asian Congress of Oral and Maxillofacial Radiology (ACOMFR) 1996
16. Farman AG1, Eraso FE1, Scarfe WC1, Hayakawa Y1 and Kuroyanagi K2 (1. Univ. of Louisville, 2. Tokyo Dental College): Image layer characteristics of the Orthopantomograph^R OP-100. Abstracts: 52, 1996 (1st Asian Congress of Oral and Maxillofacial Radiology, Tokyo, Japan)
International Congress of Dentomaxillofacial Radiology (ICDMFR) 1997
17. Nishikawa K, Hayakawa Y, Wakoh M, Kuroyanagi K: Basic x-ray response properties of CCD sensor for digital intraoral imaging system.(The 11th Congress of Dento-Maxillo-Facial Radiology, Louisville, KY, USA)
18. Hayakawa Y, Wakoh M, Nishikawa K, Kuroyanagi K, Farman AG1 (1. Univ. of Louisville): Higher-bit digitization for exposure compensation with digital intraoral imaging system.(The 11th Congress of Dento-Maxillo-Facial Radiology, Louisville, KY,USA)
European Congress on Dental and Maxillofacial Radiology (ECDMFR) 1998
19. Hayakawa Y, Kitagawa H, Kuroyanagi K, Ssu-Kuang Chen1 and Ulf Welander2(1. National Taiwan University,2. Karolinska Institutet): Software features of six digital imaging systems for intra-oral radiography. Dentomaxillofacial Radiology 27 Suppl.1: 31, 1998(6th European Congress on Dental and Maxillofacial Radiology, Oslo)共同発表者にUlf Welander(カロリンスカ医科大学),Ssu-Kuang Chen(国立台湾大学)
International Symposium and Exhibition of Computer Assisted Radiology (CAR) 1998
20. Hayakawa Y, Mori T, Shibuya H, Kuroyanagi K and Oguro T1(1. R&D, Dentsply Japan): Evaluation of the newDenOptixTM computed radiography system. Proceedings: 947, 1998(12th International Symposium and Exhibition of Computer Assisted Radiology and Surgery, CAR'98, 東京国際フォーラム)
21. Hayakawa Y: User friendly-DICOM software for intraoral digital radiography, パネルディスカッション"DICOM Applied to Maxillofacial Imaging -The Challenges lnvolved" Abstracts of Panel Discussion: 5, 1998(12th International Symposium and Exhibition of Computer Assisted Radiology and Surgery, CAR'98, 東京)
Radiological Society of North America (RSNA) 1998
22. Hayakawa Y, Kuroyanagi K and Oguro T1 (1. R&D, Dentsply・Japan): Evaluation of the new storage phosphor- based computed radiography system for dental office. Radiology 209 Suppl.: 586, 1998(84th Scientific Assembly and Annual Meeting of the Radiological Society of North America, RSNA'98, Chicago, IL. USA) 初のRSNA発表
International Congress of Dentomaxillofacial Radiology (ICDMFR) 1999
23. Hayakawa Y, Mori T, Kousuge Y, Yamamoto K, and Kuroyanagi K: Evaluation of the DIMAX digital panoramic radiography system. Program and Abstracts: 74, 1999 Proceedings: 98-102, ICS1199, Elsevier Science BV, Amsterdam, 2000(12th International Congress of Dento-Maxillo-Facial Radiology, Osaka, Japan)
24. Hayakawa,Y., Kuroyanagi,K., Ssu-Kuang Chen1, Allan G. Farman2 and Ulf Welander3(1.National Taiwan University, 2. Univ. of Louisville, 3. Karolinska Institutet): Intraoral imaging system and compatibility of existing dental X-ray generators. Program and Abstracts: 119, 1999(12th International Congress of Dento-Maxillo-Facial Radiology, Osaka, Japan)共同発表者にUlf Welander(カロリンスカ医科大学),Ssu-Kuang Chen(国立台湾大学)
2nd Japan-Korea Joint Meeting on Medical Physics 1999
25. Hayakawa Y, Kousuge Y and Kuroyanagi: Algorithm of pre-processing for  displaying digitized images with computed  radiography systems for dental office and the FCR. 放射線医学物理 19 Suppl. 61: 141-142, 1999(2nd Japan-Korea Joint Meeting on Medical Physics 1999 in connection with 78th Meeting of Japanese Association of Radiological Physics ,17th Meeting of Japanese Association of Medical Physics, 19th Meeting of Korean Society of Medical Physics, Chiba)

Radiological Society of North America (RSNA) 1999
26. Hayakawa Y, Mori T, Shibuya H, Kobayashi N, Kousuge Y and Kuroyanagi K: Rotational panoramic radiography with digital readout: CCD-based sensor coupled with scintillator vs photostimulable phosphor imaging plate.
Radiology 213 Suppl.: 500, 1999(85th Scientific Assembly and Annual Meeting of the Radiological Society of North America, RSNA'99, Chicago)
27. Hayakawa Y, Yamamoto K, Wakoh M, Fujimori H and Kuroyanagi K.: Improvement in digital readout methods applied for intraoral radiography: C-MOS-based sensor and storage phosphor imaging plate. Radiology 213 Suppl.: 500, 199(85th Scientific Assembly and Annual Meeting of the Radiological Society of North America, RSNA'99, Chicago, IL, USA)
28. Yamamoto K, Nishikawa K, Kobayashi N, Hayakawa Y,   Kuroyanagi1 K and Allan G. Farman 1 (1. Univ. of Louisville): Evaluation of the image quality of Tuned-Aperture Computed Tomography (TACT) with linear horizontal, linear vertical and conical beam projections. Radiology 213 Suppl.: 504, 1999(85th Scientific Assembly and Annual Meeting of the Radiological Society of North America, RSNA'99, Chicago, IL, USA)
European Congress on Dentomaxillofacial Radiology (ECDMFR) 2000
29. Hayakawa Y, Mori T, Kousuge Y, Kuroyanagi K and Welander U1 (1. Karolinska Institutet): Pre-processing for displaying images with digital and computed rotational panoramic radiography systems. Final Program & Book of Abstracts: 98, 2000(7th European Congress of Dentomaxillofacial Radiology, Athens, Greeese)  共同発表者にUlf Welander(カロリンスカ医科大学)

Radiological Society of North America (RSNA) 2000
30. Hayakawa Y, Yamamoto K, Wakoh M, Kousuge Y, Fujimori H and Kuroyanagi K: Improvement in digital readout methods and advanced image-processing procedures applied for digital and computed intraoral radiography systems in dental office. Radiology 217 Suppl.: 655, 2000  (86th Scientific Assembly and Annual Meeting of the Radiological Society of North America, RSNA2000, Chicago, IL, USA)
31. Hayakawa Y, Mori T, Shibuya H, Kobayashi N, Kousuge Y and Kuroyanagi K: Improvement in digital readout and display processing methods applied for digital and computed rotational panoramic radiography systems.
Radiology 217 Suppl.: 655, 2000 (86th Scientific Assembly and Annual Meeting of the Radiological Society of North America, RSNA2000, Chicago, IL, USA)

International Association for Dental Research (IADR) 2001
32. Hayakawa Y, Kobayashi N, Kuroyanagi K and Nishizawa K1 (1. National Institute of Radiological Sciences): Child Patient exposure with rotational panoramic radiography. Journal of Dental Research 80 (Special Issue): 642, 2001. (79th General Session and Exhibition of the International Association for Dental Research, Chiba)

 共同発表者に西澤かな枝先生(放医研)

American Academy of Oral and Maxillofacial Radiology (AAOMFR) 2001
33. Hayakawa Y, Mori T, Yamamoto K, Wakoh M and Farman AG1(1. University of Louisville): Computed radiography scanner systems' performance assessment in dental office usage. Abstracts: 36, 2001 (52 nd Annual Session of American Academy of Oral & Maxillofacial Radiology, Portland) 2001-9-11のために不参加。発表はDr. Farmanがcarry out.

Radiological Society of North America (RSNA) 2001
34. Yamamoto K, Sekiguchi H1, Kousuge Y, Mori T, Hayakawa Y and Farman AG2 , et al.(1. Dept. of Pediatric Dentistry, 2. University of Louisville): Evaluation of diagnostic information yield obtained from tuned-aperture computed tomography and conventional dento-alveolar imaging modalities for assessing impacted teeth. Radiology 221 Suppl., 689, 2001 (87th Scientific Assembly and Annual Meeting of the Radiological Society of North America, RSNA2001, Chicago)
35. Hayakawa Y, Mori T, Kobayashi N, Yamamoto K, Wakoh M and Farman AG1 (1. University of Louisville): Advanced image-processing procedures applied for computed radiography scanner systems in dental office and assessing the image quality. Radiology 221 Suppl.: 691, 2001(87th Scientific Assembly and Annual Meeting of the Radiological Society of North America, RSNA2001, Chicago) 2001-9-11のために不参加。発表はDr. Farmanがcarry out.
Asian Congress of Oral and Maxillofacial Radiology (ACOMFR) 2002
36. Hayakawa Y, Yamamoto K, Kousuge Y and Wakoh M:  Characteristics of a mega-pixel intraoral sensor and the application for tomo-synthesis. Program & Abstracts: 39-40,   2002 (The 4th Asian Congress of Oral and Maxillo-Facial Radiology, Kaohsiung)

International Symposium and Exhibition of Computer Assisted Radiology & Surgery (CARS) 2002
37. Yamamoto K, Hayakawa Y, Kobayashi N, Kousuge Y, Wakoh M, Sekiguchi H1, Yakushiji M1 and Farman AG2 (1. Dept. of Pediatric Dentistry, 2. University of Louisville): Tuned-Aperture Computed Tomography (TACT^R) to assess mpacted teeth using 2D slices and 3D pseudo-holograms. In Lemke HU, Vannier MW, Inamura K, Farman AG, Doi K, eds. The Proceeding:1117, Springer-Verlag, Berlin, 2002 (16th International Congress of Computer Assisted Radiology and Surgery, CARS2002, Paris) 
Radiological Society of North America (RSNA) 2002
38. Hayakawa Y, Yamamoto K, Kobayashi N, Kousuge Y, Wakoh M and Farman AG1 (1. University of Louisville): Characteristics of mega-pixel intra-oral detector and the application for three-dimensional dento-alveolar imaging by tomo-synthesis. Radiology 225 Suppl.: 713, 2002 (88th Scientific Assembly and Annual Meeting of the Radiological Society of North America, RSNA2002, Chicago)

Radiological Society of North America (RSNA) 2003
39. Hayakawa Y, Kobayashi N, Kousuge Y, Wakoh M, Ssu-Kuang Chen1, Allan G. Farman2 (Oral & Maxillofacial Radiology, School of Dentistry, National Taiwan University, Taipei, Taiwan. 2. Radiology & Imaging Sciences, Dept. of Surgical & Hospital Dentistry, School of Dentistry, Univ. of Louisville, Louisville, Ky, USA.)Comparative diagnostic value of interactive tomo-synthesis, pseudo-hologram, 3D-CT applied for three-dimensional dento-alveolar imaging. Radiology 229 Supplement, 720, 2003. (89th Scientific Assembly and Annual Meeting of the Radiological Society of North America (RSNA2003), McCormick Place, Chicago, Illinois, USA, November 30-December 5, 2003) 共同発表者にSsu-Kuang Chen(国立台湾大学)
International Symposium and Exhibition of Computer Assisted Radiology & Surgery (CARS)  2004 
Session Chair とPanel Discussionのpanelist (18th International Congress of Computer Assisted Radiology and Surgery, CARS2004, Chicago, IL, USA)

International Symposium and Exhibition of Computer Assisted Radiology & Surgery (CARS) 2005

40. Y. Hayakawa, N. Kobayashi, T. Sano, Y. Ota1, (1. Cosmos Dental Office, Chiba). Three-dimensional tomo-synthesis/reconstruction  methods and stereographic viewing display applied for dento-alveolar imaging. International Congress Series 1281, Proc. of CARS2005, 1182〜1186, 2005. (19th International Congress of Computer Assisted Radiology and Surgery, CARS2005, Berlin, Germany)
41. Y. Hayakawa, M. Suda, T. Sano : 3-D imaging trends with the likelihood of 3-D being the general mode for dental practice. International Congress Series  1281, Proc. of CARS2005, 1421, 2005. (19th International
Congress of Computer Assisted Radiology and Surgery, CARS2005, Berlin, Germany)
American Society of Head and Neck Radiology (ASHNR) 2005

42. Yamamoto, A., Yamamoto, M., Hayakawa, Y., Tanabe,K., Maki, S., Otonari, T., Okubo, M., Sano, T. : Cone-beam CT (CB Throne^R)applied to maxillofacial lesions. Program & Synopses, 342, 2005. (39th Annual Meeting of the American Society of Head and Neck Radiology, San Francisco, California, USA, 2005年9月21-25日)

(Second-Place Prize Winning presentation)
International Symposium and Exhibition of Computer Assisted Radiology & Surgery (CARS) 2006
43. Y. Hayakawa, C. Kober1,M. Yamamoto, M. Wakoh, T. Sano (1. Faculty of Engineering & Computer Science, Univ. of Applied Science Osnabrueck, Germany): Three- dimensional visualization using high-resolution MR images of the temporomandibular joint. (20th International Congress & Exhibition of Computer Assisted Radiology & Surgery CARS2006), Intl. Congress Center, Osaka, Japan, June 28-July 1, 2006)no proceeding
44. Y. Hayakawa, A. Suehiro1, N. Kobayashi1, T. Sano (1. Dept. of Oral & Maxillofacial Radiology, Chiba Hospital, Japan) Quantitative Measurement of bone density with dental cone-beam CT. In Lemke,HU, Inamura K, Doi K, Vannier MW, Farman AG, editors. The Proceeding of the 20th Intl Congress of Computer Assisted Radiology and Surgery, Intl J Comp Assist Radiol Surg 1(Suppl.1): 532-533, 2006. (20th Intl Congress & Exhibition of Computer Assisted Radiology & Surgery CARS2006), International Congress Center, Osaka, Japan, June 28-July 1, 2006)45. C. Kober1, Y. Hayakawa, G. Kinzinger2, M. Yamamoto, T. Sano, R. Sader3(1. Faculty of Engineering & Computer Science, Univ. of Applied. Science Osnabrueck, Germany, 2. Univ. of Aachen, Germany, 3.Univ. of Frankfurt, Germany): An approach for three-dimensional rendering of the mandibular disc based on high-resolution MR images. In Lemke,HU, Inamura K, Doi K, Vannier MW, Farman AG, editors. The Proceeding of the 20th Intl Congress of Computer Assisted Radiology & Surgery, Intl J Comp Assist Radiol Surg 1(Suppl.1): 405-406, 2006. (20th Intl Congress & Exhibition of Computer Assisted Radiology & Surgery CARS2006), Intl Congress Center, Osaka, Japan, June 28-July 1, 2006)
German Society of Orthodontics 2006

46. C. Kober1, G. Kinzinger2, Y. Hayakawa3, R. Sader4 (1.FH Osnabruck, Faculty of Engineering & Computer Science, Univ. of Applied Science Osnabrueck 2. RWTH Univ. of Aachen, 3.Tokyo Dental College, 4.Universitat Frankfurt, Univ. of Frankfurt): Kombinierte 2D-3D-Darstellung des Kiefergelenks auf der Basis von MRT-Daten der klinischen Routine (In English: Combined 2D-3D-visualization of the TMJ based on MRI data stemming from the clinical routine). (The German Conference of Orthodontics, The Annual Meeting of the German Society of Orthodontics, 6-10 September. Nuremberg, Germany). The Journal of the German Society of Orthodontics 1(Suppl. 1), 10〜11, 2006.(The Annual Meeting of the German Society of Orthodontics, Nuremberg, Germany).

SPIE International Symposium, Medical Imaging 2007
47. Matsushita,T.(1), Hayakawa,Y., Miyati,T.(1), Nakayama,K.(1), Hamaguti,T.(1), Farman,A.G.(2), Kikuchi,Y.(1) : Development of qualitative near-infrared vascular imaging system with tuned aperture computed tomography, Proceeding of SPIE International Symposium, Medical Imaging 2007, 500〜501, 2007. (SPIE International Symposium, Medical Imaging 2007, Feb.17-22, 2007, Town and Country Hotel, San Diego, California, USA) (1) Kanazawa Univ., (2)Div. of Radiol. and Imaging Sci.Dept. of Surg. and Hospital Dent. School of Dent.,Univ. of Louisville.http://spie.org/conferences/programs/07/mi/


International Conference on Computer Aided Surgery around the Head (CAS-H) 2007

48. Kober,C.(1), Leiggener,C.(2), Boerner,B.I.(2), Kunz,C.(2), Berg,S.(2), Hayakawa,Y., Kinizinger,G.(3), Sader,R.(4), Zeilhofer,H.F.(5) : First steps in 4D-rendering of craniofacial soft tissue in the TMJ region, Proceeding of the 4th International Conference on Computer Aided Surgery around the Head (CAS-H2007), 100〜101, 2007 .(4th International Conference on Computer Aided Surgery around the Head (CAS-H2007), Innsbruck Medical University Hospital, Innsbruck, Austria, 21-24 Feb.2007) (1)Faculty of Engineering & Computer Science, Univ. of Applied Science Osnabrueck, Germany (2)University Hospital Basle, Switzerland,(3)Univ. of Aachen, Germany (4)Univ. of Frankfurt, Germany (5)Center of Advanced Studies in Cranio-Maxillo-Facial Surgery, Munich University of Technology, Germany, Germany. http://www.cas-h-international.org/2007/


International Congress of Dentomaxillofacial Radiology (ICDMFR) 2007

49. Sano T, Nishikawa K, Wakoh M, Hayakawa Y,  Harada H, Otonari T, Ohkubo M, Yamamoto-Otonari M,  Tanabe K, Yajima A, Kawada E (1. Dept. of Oral and Maxillofacial Radiology, Tokyo Dental College, 2. Dental Education  Development Center, Tokyo Dental College). Prototype simulator that does not use X-rays for dental school  undergraduate training in intraoral radiographic technique. The 16th International Congress of Dentomaxillofacial Radiology (ICDMFR2007), at Beijing, China, June 26 - 30, 2007. Abstracts and Program, pp.196, 2007-6.  (http://www.iadmfrcn.org/)
50. Tanimoto K1, Yamashina A2, Sutthiprapaporn P1, Hayakawa Y3(1. Dept. of Oral and Maxillofacial Radiology,  Graduate School of Biomedical Sciences, Hiroshima Univ., Hiroshima, Japan, 2. Yamashina Dental Clinic, Hiroshima, Japan, 3. Dept. of Computer Sciences, Kitami Institute of Technology, Hokkaido, Japan). The reliability of CT values and dimensional measurements of the oropharyngeal region using cone-beam computed tomography. -Comparison with multi-detector computed tomography-. The 16th International Congress of Dentomaxillofacial Radiology (ICDMFR2007), at Beijing, China, June 26 - 30, 2007. Abstracts and Program, pp.213, 2007-6. (http://www.iadmfrcn.org/)

International Symposium and Exhibition of Computer Assisted Radiology & Surgery (CARS) 2007
51. Cornelia Kober1, Yoshihiko Hayakawa2, Aya Yajima3, Mika Otonari-Yamamoto3, Zszislaw Krol4, Katja Schwenzer-Zimmerer4, M. Luethi4, T Sano3, Takahiko Shibahara5, Robert Sader6 (1. Univ. of Applied Science Osnabrueck, Germany 2. Dept. of Computer Sciences, Kitami Institute of Technology, Hokkaido, Japan, 3. Dept. of Oral & Maxillofacial Radiology, Tokyo Dental College, 4. Univ. Hosp. Basel, Switzerland, 5. Oral & Maxillofacial Surgery, Tokyo Dental College, 6. Univ. of Frankfurt, Germany). An approach for visualization of soft tissue tumors located close to the maxillary sinuses, the orbital walls, or the ethmoid bone and air cells based on computer tomography data. The 21st International Congress of Computer Assisted Radiology and Surgery (CARS2007) at Berlin, Germany, from June 27-30, 2007. International Journal of Computer Assisted Radiology & Surgery, Vol.2, Suppl.1, pp.S525, 2007-6. (http://www.cars-int.org/)


International Symposium and Exhibition of Computer Assisted Radiology & Surgery (CARS) 2008

52. Y. Hayakawa, Y. Miyoseta, H. Yamashita, M. Sagawa, T. Kawaguchi (Dept. of Computer Science, Kitami Institute of Technology), Superficial vascular imaging system using near infrared radiation and tomo-synthesis algorithm, Tuned-Aperture Computed Tomography. The 22nd International Congress of Computer Assisted Radiology and Surgery (CARS2008) at Barcelona, Spain, June 25-28, 2008. International Journal of Computer Assisted Radiology & Surgery, Vol.3, Suppl.1, pp.S26-S27, 2008-6. (www.cars-int.org/)
53. Y. Hayakawa, M. Sagawa, T. Kawaguchi, Y. Miyoseta, H. Yamashita (Dept. of Computer Science, Kitami Institute of Technology), Improvement of the accuracy of bone segmentation procedures applied to CBCT images. The 22nd International Congress of Computer Assisted Radiology and Surgery (CARS2008) at Barcelona, Spain, June 25-28, 2008. International Journal of Computer Assisted Radiology & Surgery, Vol.3, Suppl.1, pp.S212-213, 2008-6. (http://www.cars-int.org/)


7th Asian Congress of Oral and Maxillo-Facial Radiology (ACOMFR) 2008

54. Y Hayakawa1, M Sagawa1, Y Miyoseta1, A. Honda2, and T Sano3 ( 1. Dept. of Computer Science, Kitami Institute of Technology, Kitami, Hokkaido, 2. Health Administration Center, Kitami Institute of Technology, Kitami, Hokkaido, 3. Dept. Oral & Maxillofacial Radiology, Tokyo Dental College, Chiba, Japan) Three-dimensional filtering and region growing methods for precise bone segmentation applied to cone beam computed tomography images The 7th Asian Congress of Oral and Maxillofacial Radiology (ACOMFR2008) at Nara, Japan, Nov. 20-22, 2008 Congress Program & Scientific Proceedings, pp.78, 2008-11.

International Symposium and Exhibition of Computer Assisted Radiology & Surgery (CARS) 2009
55. Y. Hayakawa, A. Kondo, M. Sagawa, Y. Miyoseta, W.J. Tang, Kitami Inst. of Technology (J), Bone and teeth segmentation for 3D reconstruction applied to dental cone beam CT image. The 23rd International Congress of Computer Assisted Radiology and Surgery (CARS2009) at Berlin, Germany, June 23-27, 2009. International Journal of Computer Assisted Radiology & Surgery, Vol.4, Suppl.1, pp.S194, 2009-06. (http://www.cars-int.org/)
56. C. Kober (1), B.-I. Berg (2), C. S. Leiggener (2), HF Zeilhofer (2), R. Sader (3), Y. Hayakawa (4), (1) Faculty of Life Sciences,
Hamburg University of Applied Sciences, Germany, (2) Cranio-Maxillofacial Surgery, University of Basel, Basel Switzerland, (3)
University of Frankfurt, Germany, (4) Kitami Institute of Technology, Hokkaido, Japan.
Efficient support of TMJ diagnosis and therapy by computer aided visualization and simulation,Special Session TMJ/TMD (Temporomandibular Joint Disorders) chaired by Cornelia Kober and Yoshihiko Hayakawa, The 23rd International Congress of Computer Assisted Radiology and Surgery (CARS2009) at Berlin, Germany, June 27, 2009. International Journal of Computer Assisted Radiology & Surgery,Vol.4,Suppl.1, ppS227-228, 2009-06. (http://www.cars-int.org/)

Radiological Society of North America (RSNA) 2009 & DICOM WG-22 Meeting

International Symposium and Exhibition of Computer Assisted Radiology & Surgery (CARS) 2010 & DICOM WG-22 Meeting
57. Y. Hayakawa1, A. Kondo1, J.Dong1, A. Honda2  1 Kitami Institute of Technology, Dept. of Computer Science 2Health Administration Center. Statistical reconstruction applied to streak artifact reduction in X-raycomputed tomography image of dento-alveolar region. The 24th International Congress of Computer Assisted Radiology and Surgery (CARS2010) at Geneva, Switzerland, June 23-26, 2010. International Journal of Computer Assisted Radiology & Surgery, Vol.5, Suppl.1, pp.S236, 2010-06. (http://www.cars-int.org/)

IWMST2010
58. Jian Dong, Atsushi Kondo, Wen Jun Tang, Kosuke Abe, Yoshihiko Hayakawa. ML-EM reconstruction algorithm applied to streak artifact reduction in X-ray CT image. International Workshop on Modern Science and Technology 2010(IWMST2010), Proceedings, pp.138-140. September 4-5, 2010. Kitami Institute of Technology, Kitami, Japan.

**. S. Kannenberg1*, B. Frank1, A. Parvin1, G. Al-Hakim1, A. Preiss2, C. Landes3, R. Sader3, C. Kober1  1Faculty of Life Sciences, Hamburg Univ. of Applied Sciences, 2Univ. of Bristol, UK 3Univ. of Frankfurt,Germany. Computer assisted evaluation of surgical maxillary expansion based on pre- and post-operative CT. International Workshop on Modern Science and Technology 2010 (IWMST2010), Proceedings, pp.215-216. September 4-5, 2010. Kitami Institute of Technology, Kitami, Japan.

Radiological Society of North America (RSNA) 2010 & DICOM WG-22 Meeting

International Congress of Dento-maxillo-facial Radiology (ICDMFR) 2011
59. Hayakawa Y, Dong J, Abe K, Kondo A . Successive and faster statistical reconstruction applied to streak artifact reduction in X-ray computed Tomography image. The 18th International Congress of Dento-Maxillo-Facial Radiology (ICDMFR2011), at Hiroshima, Japan, May 25-29, 2011 Program & Abstract Book, pp.66, 2011-5. (http://www.iadmfrcn.org/
60. Hayakawa Y. Round Table Discussion: Dental Mapping and Query-Retrieve The 18th International Congress of Dento-Maxillo-Facial Radiology (ICDMFR2011), at Hiroshima, Japan, May 25-29, 2011 Program & Abstract Book, pp.106, 2011-5. (http://www.iadmfrcn.org/)


International Symposium and Exhibition of Computer Assisted Radiology & Surgery (CARS) 2011 & DICOM WG-22 Meeting
61. Y. Hayakawa, J.Dong1, K. Abe, A. Kondo,  Kitami Institute of Technology, Dept. of Computer Science. Successive and faster statistical reconstruction applied to streak artifact reduction in X-ray computed tomography image of dento-alveolar region. The 25th International Congress of Computer Assisted Radiology and Surgery (CARS2011) at Berlin, Germany, June 22-25, 2011. International Journal of Computer Assisted Radiology & Surgery(コンピュータ支援放射線医学外科学会雑誌), Vol.6, Suppl.1, pp.S212-S213, 2011-06. (http://www.cars-int.org/)
62.Hayakawa Y. Works for mapping and viewing solution of intraoral radiography.The 25th International Congress of Computer Assisted Radiology and Surgery (CARS2011) at Berlin, Germany, June 22-25,2011. International Journal of Computer Assisted Radiology & Surgery(コンピュータ支援放射線医学外科学会雑誌), Vol.6, Suppl.1, pp.S377, 2011-06. (http://www.cars-int.org/)(国際コンピュータ支援放射線学外科学会議,Berlin, Germany, 6月22-25日)

Radiological Society of North America (RSNA) 2011 & DICOM WG-22 Meeting
63,

2012 World Congress on Medical Physics and Biomedical Engineering (WC2012)
64.65.

International Symposium and Exhibition of Computer Assisted Radiology & Surgery (CARS) 2012 &
DICOM WG-22 Meeting

66.67.