Kyushu University Academic Staff Educational and Research Activities Database
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kiichi urahama Last modified date:2017.11.15

Professor / Image Information Engineering
Department of Communication Design Science
Faculty of Design

Graduate School
Undergraduate School

Academic Degree
Doctor of Engineering
Field of Specialization
Image Information Processing
Outline Activities
Research area includes pattern recognition, image processing, computational photography, video analysis, collaborative filtering, computer vision, non-photorealistic CG.
Education area includes image engineering, computer vision, and computer graphics.
Research Interests
  • computational photography, image processing, non-photorealistic rendering
    keyword : computational photography, image processing, non-photorealistic rendering, bilateral filter
  • Pattern Recognition, Semi-Supervised Learning, Tensor Data Analysis
    keyword : Pattern Recognition, Machine Learning, Pattern Classification
    1995.04Main research area is pattern recognition. I have developed many algorithms for pattern recognition, especially some advanced algorithms for semi-supervised learning and tensor data analysis..
Academic Activities
1. An-shui Yu, Naoki Ono, Kohei Inoue, Kenji Hara, kiichi urahama, Isoluminant Color Halftoning for Generating Pointillistic Tile Images and Photomosaics, JIIAE, 5, 3, 2017.07.
2. Yu Gua, Naoki Ono, kiichi urahama, Real-time Rendering of 3D Ink-wash Painting Based on Geometry Buffers, JIIAE, 5, 2, 2017.05.
3. Naoki Ono, kiichi urahama, Tone Reproduction of Photographs by Affine Color Transformation, JIIAE, 4, 4, 2016.10.
4. Chen Zhou, Kohei Inoue, kiichi urahama, Band-Amplifying Unsharp-Masking for Hue-Preserving Motion Magnification of Video, J. Inst. Indust. Appl. Engineers, 4, 1, 2016.01.
5. Zihan Yu, kiichi urahama, Hue-Preserving Unsharp-Masking for Color Image Enhancement, IEICE Trans. Inf. & Syst., E97-D, 12, 2014.12.
6. Zihan Yu, kiichi urahama, Iterative Method for Inverse Nonlinear Image Processing, IEICE Trans. Fundamentals, E97-A, 2, 2014.02.
7. Tao Wang, Zhongying Hu, kiichi urahama, Anisotropic Lp Poisson Disk Sampling for NPR Image with Adaptively Shaped Pieces
, IEICE TRANSACTIONS on Information and Systems, E96-D, 6, 2013.06.
8. W. Du, K. Urahama, Error-Correcting Semi-Supervised Pattern Recognition with Mode Filter on Graphs
, J.Adv.Comput.Intelli.Intelli.Inform., 15, 9, 1262-1268, 2011.11.
9. Yu Qiu, kiichi Urahama, Edge-preserving cross-sharpening of multi-modal images, IEICE Trans. Inf. & Syst., E94-D, 3, 718-720, 2011.03.
10. Yu Qiu, Kiichi Urahama, Denoising of multi-modal images with PCA self-vross bilateral filter, IEICE Trans. Fundamentals, E93-A, 9, 1709-1712, 2010.09.
11. Z. Du, K. Inoue, K. Urahama, Single image super-resolution with reconstruction using anisotropic bilateral filter, 映像情報メディア学会誌, 64, 6, 891-893, 2010.06.
12. Chang Jian, Kohei Inoue, Kiichi Urahama, Use of bilateral filters for super-resolution of single image with iterations for minimizing reconstruction errors, 映像情報メディア学会誌, 63, 12, 1888-1891, 2009.12.
13. Weiwei Du, Kiichi Urahama, Natural Image Matting with Membership Propagation, IPSJ Trans. CVA, vol.1, no.1, pp.3-11, 2009.01.
14. K. Inoue, K. Urahama, Fast bilateral filtering of vector-valued multiple images with decomposition of weights, 映像情報メディア学会誌, 62, 2, pp.271-274, 2008.02.
15. W. Du, K. Urahama, Semi-supervised pattern classification utilizing fuzzy clustering and nonlinear mapping of data, J Adv. Comput. Intell. Intell. Inf., 11, 9, pp.1159-1164, 2007.10.
16. W. Du, K. Urahama, Semi-supervised classification with spectral projection of multiplicatively modulated similarity data, IEICE Trans. Inf. & Syst., Vol.E90-D, No.9,pp.1456-1459, 2007.09.
17. W. Du, K. Urahama, Unsuprevised and semi-supervised graph-spectral algorithms for robust extraction of arbitrarily shaped fuzzy clusters, J. Adv. Comput. Intell. Intell. Inf., Vol.11, No.6, pp.554-560, 2007.06.
1. Yu Gu, Naoki Ono, kiichi urahama, Ink-painting Animation by Geometry Buffer Based Real-time 3D Rendering, ICISIP, 2016.09.11.
2. Lei Hang, Kohei Inoue, kiichi urahama, Enhanced Restoration of Ill-Conditioned Photographs, ICISIP, 2015.09.03.
3. Lei Hang, Kohei Inoue, kiichi urahama, Inverse Cross-Bilateral Filter for Cross-Sharpening of Images, GCCE, 2014.10.09.
4. kiichi urahama, Kohei Inoue, Yu Zhang, Binarized-Weight Bilateral Filter for Low Computational Cost Image Smoothing, ICCSIE, 2014.05.29.
5. Zihan Yu, Kohei Inoue, kiichi urahama, Dark and Bright Envelopes for Dehazing Images, ICCSIE, 2014.05.29.
6. Zihan Yu, Kohei Inoue, Hara Kenji, Naoki Ono, kiichi urahama, Bilateral Minimum Filter for Dehazing Images, QCAV, 2013.06.01.
7. Shaolong Li, Junsheng Tao, kiichi urahama, Multi-Class Poisson Disk Sampling with Radius-Order Scan of Pixels, NICOGRAPH International, 2013.06.02.
Membership in Academic Society
  • The Institute of Industrial Applications Engineers(IIAE)
  • The Institute of Electronics, Information and Communication Engineers(IEICE)
  • Our paper published on the journal was selected as a best paper.
  • The content of the paper is excellent.
  • Our paper presented in the NICOGRAPH'06 was awarded as the best paper.
Professional and Outreach Activities
Lecturer in open lecture
Supervisor for 3 foreigner students
Committee member for international conferences.