Researcher

Keiichi Abe

Also known as 阿部圭一

Keiichi Abe is a professor emeritus at Shizuoka University whose research centered on the shape and structure of binary images. In the 1980s, at Shizuoka's Faculty of Engineering, he led a grant on combining grammatical inference with syntactic pattern recognition and devised a corner detector based on local symmetry along with two fast thinning algorithms. The International Association for Pattern Recognition named him a Fellow in 1998 for contributions to structural pattern recognition and for service to IAPR. After joining the Faculty of Information in 1995, he led studies of color image segmentation and of shared courses linking computer science with the liberal arts, and he was a professor at Aichi Institute of Technology in 2006. His later papers turned to the side effects of the Internet and to Japan's government debt.

Now at
Shizuoka University
Works
190

Publication numbers from OpenAlex, as of 22 October 2026. Citations and h-index are hidden because this OpenAlex record may be incomplete or mix in other authors.

Timeline

  1. 1985

    Associate professor at Shizuoka

    In 1985, as an associate professor in Shizuoka University's Faculty of Engineering, he leads a grant on combining grammatical inference with syntactic pattern recognition for image understanding and scene analysis.

  2. 1986–1987

    Fast thinning algorithms

    As a professor in Shizuoka's Faculty of Engineering, he leads a 1986–1987 study of shape analysis in binary images. The study yields a corner-point detector based on local symmetry and two fast thinning algorithms, one sequential using distance transformation and one parallel with two subcycles.

  3. 1994–1996

    Structural recognition of shapes

    From 1994 to 1995, he leads a cooperative research project on the structural perception and recognition of shapes, with co-investigators from Kyoto, Nagoya, Osaka and Kyushu universities and Toyohashi University of Technology. At a December 1995 meeting, he presents the state of the art in binary image processing, and his paper “Parts of planar shapes” appears in Pattern Recognition in 1996.

  4. 1995–2005

    Professor in the Faculty of Information

    He is a professor in Shizuoka University's Faculty of Information from 1995 to 2005. From 1996 to 1998, he leads a project on shared courses for the faculty's Department of Computer Science and Department of Information Arts, bridging engineering with the liberal arts and social sciences.

  5. 1998

    IAPR Fellow

    The International Association for Pattern Recognition names him a Fellow in 1998 for contributions to structural pattern recognition and for service to IAPR.

  6. 1999–2002

    Color segmentation and runway inspection

    From 1999 to 2000, he leads research on segmenting color images in line with human color perception, including a comparison of eleven color spaces using human classification experiments. In 2002, with engineers from Kawasaki Heavy Industries, he coauthors a paper on an autonomous runway inspection system that uses ultraviolet image sensors.

  7. 2006–2011

    Professor at Aichi Institute of Technology

    In 2006, he is a professor at Aichi Institute of Technology. Writing from there in 2011 for the Japan Association for Social Informatics, he argues that the Internet may erode high-quality content and weaken thinking and human relations, especially among younger people.

  8. As of October 2026

    Professor emeritus at Shizuoka

    He is a professor emeritus at Shizuoka University, in its Faculty of Informatics. In a 2019 paper for the Society of Socio-Informatics, he asks why most Japanese citizens, politicians and media show no concern about a government debt of 1,100 trillion yen.

Career

  1. Since 1985Shizuoka UniversityAssociate Professor, Professor
  2. 2006–2011Aichi Institute of TechnologyProfessor

Sources and credits

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  1. KAKEN — Researchers | ABE Keiichi (80022193) nrid.nii.ac.jp. Checked 20 October 2026.
  2. KAKEN — Research Projects | Systematic studies on shape analysis of binary images (KAKENHI-PROJECT-61550259) kaken.nii.ac.jp. Checked 20 October 2026.
  3. KAKEN — Research Projects | Structural perception and recognition of shapes (KAKENHI-PROJECT-06302075) kaken.nii.ac.jp. Checked 20 October 2026.
  4. KAKEN — Research Projects | Curriculum and Education Practuce in a Faculty of Information Composed of Science/Engineering Department and Liberal Arts/Social Science Department. (KAKENHI-PROJECT-08459012) kaken.nii.ac.jp. Checked 20 October 2026.
  5. IAPR - IAPR Fellows old.iapr.org. Checked 20 October 2026.
  6. KAKEN — Research Projects | Studies on segmentation of color images considering the characteristics of human color perception (KAKENHI-PROJECT-11680385) kaken.nii.ac.jp. Checked 20 October 2026.
  7. An Autonomous Inspection System for Runways Using Ultraviolet Image Sensors jstage.jst.go.jp. Checked 20 October 2026.
  8. Does the Internet Have Serious Side Effects? jstage.jst.go.jp. Checked 20 October 2026.
  9. Recognizing Crisis of Japanese Government Finance: Socio-Informatic Considerations jstage.jst.go.jp. Checked 20 October 2026.