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Research Activity

Field of Study

Image Processing, Artificial Intelligence, VLSI設計

Subject of Study

機械学習, 動画像符号化技術 (Versatile Video Coding, neural network)

Book / Paper

Academic Paper (Judged Full Paper):

1.Xiantao Jiang, Feng Jie, Tian Song and Takafumi Katayama :
Low-Complexity and Hardware-Friendly H.265/HEVC Encoder for Vehicular Ad-Hoc Networks,
Sensors, Vol.19, 2019.
(DOI: 10.3390/s19081927)
2.Xiantao Jiang, Tian Song, Takafumi Katayama and Lu Wang :
Quality-Oriented Perceptual HEVC Based on the Spatiotemporal Saliency Detection Model,
Entropy, Vol.21, No.2, 165, 2019.
(DOI: 10.3390/e21020165)
3.Xiantao Jiang, Tian Song, Takafumi Katayama and Leu Jenq-Shiou :
Spatial Correlation-Based Motion-Vector Prediction for Video-Coding Efficiency Improvement,
Symmetry, Vol.11, No.2, 2019.
(DOI: 10.3390/sym11020129)
4.Takafumi Katayama, Tian Song, Wen Shi, Xiantao Jiang and Takashi Shimamoto :
Fast CU Determination Algorithm Based on Convolutional Neural Network for HEVC,
International Journal of Machine Learning and Computing, Vol.8, No.5, 442-446, 2018.
(DOI: 10.18178/ijmlc.2018.8.5.726,   Elsevier: Scopus)
5.Takafumi Katayama, Tian Song, Wen Shi, Xiantao Jiang and Takashi Shimamoto :
Boundary Correlation-based Intracoding for SHVC Algorithm and its Efficient VLSI Architecture,
Journal of Real-Time Image Processing, 1-16, 2018.
(DOI: 10.1007/s11554-018-0786-8,   Elsevier: Scopus)
6.Xiantao Jiang, Xiaofeng Wang, Tian Song, Wen Shi, Takafumi Katayama, Takashi Shimamoto and Jenq-Shiou Leu :
An Efficient Complexity Reduction Algorithm for CU Size Decision in HEVC,
International Journal of Innovative Computing, Information and Control, Vol.14, No.1, 309-322, 2018.
(DOI: 10.24507/ijicic.14.01.309,   Elsevier: Scopus)
7.Takafumi Katayama, Tian Song, Wen Shi, Gen Fujita, Xiantao Jiang and Takashi Shimamoto :
Hardware Oriented Low-Complexity Intra Coding Algorithm for SHVC,
IEICE Transactions on Fundamentals of Electronics, Communications and Computer Sciences, Vol.E100-A, No.12, 2936-2947, 2017.
(DOI: 10.1587/transfun.E100.A.2936,   Elsevier: Scopus)
8.Takafumi Katayama, Tian Song, Wen Shi, Xiantao Jiang and Takashi Shimamoto :
Fast Edge Detection and Early Depth Decision for Intra Coding of 3D-HEVC,
International Journal of Advances in Computer and Electronics Engineering, Vol.2, No.7, 11-20, 2017.
9.Wen Shi, Tian Song, Takafumi Katayama, Xiantao Jiang and Takashi Shimamoto :
Hardware Implementation-Oriented Fast Intra-Coding Based on Downsampling Information for HEVC,
Journal of Real-Time Image Processing, 1-15, 2017.
(DOI: 10.1007/s11554-017-0677-4)
10.Takaaki Hamamoto, Tian Song, Takafumi Katayama and Takashi Shimamoto :
Complexity Reduction Algorithm for Hierarchical B-Picture of H.264/SVC,
International Journal of Innovative Computing, Information and Control, Vol.7, No.1, 445-457, 2011.
(Elsevier: Scopus)

Academic Paper (Unrefereed Paper):

1.Takafumi Katayama, 森上 義崇, Tian Song and Takashi Shimamoto :
H.264/SVCにおけるEnhancementレイヤー符号化時の動き探索範囲の最適化に関する研究,
電子情報通信学会 回路とシステム軽井沢ワークショップ, No.22, 136-141, 2009.

Academic Letter:

1.Takafumi Katayama, Hiroki Tanaka, Tian Song and Takashi Shimamoto :
Saliency-Detection-Based Quantization Parameter Setting Method for HEVC,
IEEJ Transactions on Electronics, Information and Systems, Vol.138, No.10, 1185-1186, 2018.
(DOI: 10.1541/ieejeiss.138.1185)
2.Xiantao Jiang, Tian Song, Wen Shi, Takafumi Katayama, Takashi Shimamoto and Lisheng Wang :
Fast Coding Unit Size Decision Based on Probabilistic Graphical Model in High Efficiency Video Coding Inter Prediction,
IEICE Transactions on Information and Systems, Vol.E99-D, No.11, 2836-2839, 2016.
(Tokushima University Institutional Repository: 110596,   DOI: 10.1587/transinf.2015EDL8237,   CiNii: 130005268124)
3.Kentaro Takei, Takafumi Katayama, Tian Song and Takashi Shimamoto :
Complexity Reduction Algorithm for Enhancement Layer of H.264/SVC,
ICIC Express Letters, Vol.4, No.5(B), 1965-1972, 2010.
(Elsevier: Scopus)
4.Takaaki Hamamoto, Takafumi Katayama, Tian Song and Takashi Shimamoto :
Low Complexity Mode Selection Method for Hierarchical B-picture of H.264/SVC,
ICIC Express Letters, Vol.3, No.4(A), 1179-1184, 2009.

Proceeding of International Conference:

1.Fumiya Kitawaki, Tian Song, Takafumi Katayama, Xiantao Jiang and Takashi Shimamoto :
Improvement of Cross Component Prediction by Multiple Liner Prediction for HEVC,
Proceedings of International Technical Conference on Circuits/Systems, Computers and Communications(ITC-CSCC2019), No.OS-09-04, 187-190, Cheju, Jun. 2019.
2.Takafumi Katayama, Koki Tamura, Tian Song and Takashi Shimamoto :
Fast Object Detection Algorithm using Encoded Video Information,
IEEE CASS Shanghai and Shikoku Chapters Joint Workshop on Circuits and Systems (SSJW'18), Takamatsu, Nov. 2018.
3.Takafumi Katayama, Tian Song and Takashi Shimamoto :
QP Adaptation Algorithm for Low Complexity HEVC based on a CNN-Generated Header Bits Map,
Proceedings of IEEE 8th International Conference of Consumer Electronics in Berlin (ICCE-Berlin), 1-5, Berlin, Sep. 2018.
(DOI: 10.1109/ICCE-Berlin.2018.8576179,   Elsevier: Scopus)
4.Koki Tamura, Takafumi Katayama, Tian Song and Takashi Shimamoto :
Multi-line Intra Prediction for Inter-Layer Reference in SHVC,
Proceedings of Taiwan and Japan Conference on Circuits and Systems (TJCAS2018), No.3AM3C-2, Taichung, Taiwan, Aug. 2018.
5.Shota Yusa, Takafumi Katayama, Tian Song and Takashi Shimamoto :
Fast PU Size Decision Algorithm Using RD-Cost and Depth Dispersion for Depth Intra Coding of 3D-HEVC,
Proceedings of Taiwan and Japan Conference on Circuits and Systems (TJCAS2018), No.3AM3C-1, Taichung, Taiwan, Aug. 2018.
6.Takafumi Katayama, Koki Tamura, Tian Song and Takashi Shimamoto :
Efficient Object Detection Algorithm using Encoded Video Information,
Proceedings of Taiwan and Japan Conference on Circuits and Systems (TJCAS2018), No.3AM3A-1, Taichung, Taiwan, Aug. 2018.
7.Kunihito Hatai, Ryota Fujiki, Akinori Sanda, Wen Shi, Takafumi Katayama, Tian Song and Takashi Shimamoto :
Learning Library Extension for Sea Cucumber Recognition using GANs,
Proceedings of International Technical Conference on Circuits/Systems, Computers and Communications(ITC-CSCC2018), No.CP-02-153, 1-2, Bangkok, Jul. 2018.
8.Akinori Sanda, Kunihito Hatai, Ryota Fujiki, Takafumi Katayama, Tian Song and Takashi Shimamoto :
Fast Object Detection System Based On The Embedded Information In The Bitstream,
Proceedings of International Technical Conference on Circuits/Systems, Computers and Communications(ITC-CSCC2018), No.CP-02-145, 1-4, Bangkok, Jul. 2018.
9.Takafumi Katayama, Kazuki Kuroda, Wen Shi, Tian Song and Takashi Shimamoto :
Low-Complexity Intra Coding Algorithm Based on Convolutional Neural Network for HEVC,
Proceedings of 2018 International Conference on Information and Computer Technologies (ICICT2018), 115-118, DeKalb, USA, Mar. 2018.
(DOI: 10.1109/INFOCT.2018.8356852,   Elsevier: Scopus)
10.Takafumi Katayama, Kazuki Kuroda, Tian Song, Jenq-Shiou Leu and Takashi Shimamoto :
Multi-Input CNN-based Low-Complexity Intra Coding Algorithm for HEVC,
Proceedings of 4th International Forum on Advanced Technologies (IFAT2018), No.P1-28, 1-3, Tokushima, Mar. 2018.
11.Wen Shi, Takafumi Katayama, Tian Song and Takashi Shimamoto :
Efficient Intra Prediction Based on Adaptive Downsampling Signal for Parallel HEVC Encoding,
Proceedings of IEEE International Conference on Consumer Electronics(ICCE2018), 621-624, Las Vegas, Jan. 2018.
(DOI: 10.1109/ICCE.2018.8326253,   Elsevier: Scopus)
12.Yoshiki Ito, Tian Song, Wen Shi, Takafumi Katayama and Takashi Shimamoto :
Hardware-oriented Low Complexity Motion Estimation for HEVC,
Proceedings of IEEE International Conference on Consumer Electronics(ICCE2018), 438-442, Las Vegas, Jan. 2018.
(Elsevier: Scopus)
13.Kazuki Kuroda, Takafumi Katayama, Tian Song and Takashi Shimamoto :
Early Mode Selection of High Resolution for HEVC Base on Bits-Mapping,
Proceedings of IEEE International Conference on Consumer Electronics(ICCE2018), 428-433, Las Vegas, Jan. 2018.
(DOI: 10.1109/ICCE.2018.8326120,   Elsevier: Scopus)
14.Takafumi Katayama, Wen Shi, Tian Song and Takashi Shimamoto :
Pixel-based Fast CU Depth Decision Algorithm with Edge Strength for HEVC,
Proceedings of IEEE International Conference on Consumer Electronics(ICCE2018), 407-412, Las Vegas, Jan. 2018.
(DOI: 10.1109/ICCE.2018.8326245,   Elsevier: Scopus)
15.Koki Tamura, Takafumi Katayama, Wen Shi, Tian Song and Takashi Shimamoto :
Coding Efficiency Improvement Algorithm for Inter-Layer Reference Prediction in SHVC,
Proceedings of International Technical Conference on Circuits/Systems, Computers and Communications(ITC-CSCC2017), 479-480, Busan, Jul. 2017.
16.Shota Yusa, Takafumi Katayama, Wen Shi, Tian Song and Takashi Shimamoto :
Fast CU Depth Decision Algorithm Using Depth-Map for 3D-HEVC,
Proceedings of International Technical Conference on Circuits/Systems, Computers and Communications(ITC-CSCC2017), 473-474, Busan, Jul. 2017.
17.Takafumi Katayama, Wen Shi, Tian Song and Takashi Shimamoto :
Early Depth Determination Algorithm for Enhancement Layer Intra Coding of SHVC,
Proceedings of IEEE International Technical Conference TENCON 2016, 3083-3086, Singapore, Nov. 2016.
(DOI: 10.1109/TENCON.2016.7848614)
18.Kazuki Kuroda, Takafumi Katayama, Tian Song and Takashi Shimamoto :
Adaptive Mode Selection for Low Complexity Enhancement Layer Encoding of SHVC,
Proceedings of International Technical Conference on Circuits/Systems, Computers and Communications(ITC-CSCC2016), 355-358, Okinawa, Jul. 2016.
19.Takafumi Katayama, Tian Song, Wen Shi, Takashi Shimamoto and Jenq-Shiou Leu :
Reference Frame Selection Algorithm of HEVC Encoder for Low Power Video Device,
Proceedings of 2nd International Conference on Intelligent Green Building and Smart Grid (IGBSG 2016), 34-39, Praha, Jun. 2016.
20.Takafumi Katayama, Wen Shi, Tian Song, Jenq-Shiou Leu and Takashi Shimamoto :
Fast CU Size Decision for Intra Coding Algorithm in SHVC,
Proceedings of 2nd International Forum on Advanced Technologies (IFAT2016), No.P1-18, 1-3, Tokushima, Mar. 2016.
21.Takafumi Katayama, Wen Shi, Tian Song and Takashi Shimamoto :
Low-Complexity Intra Coding Algorithm in Enhancement Layer for SHVC,
Proceedings of 2016 IEEE International Conference on Consumer Electronics (ICCE), 419-422, Las Vegas, Jan. 2016.
(DOI: 10.1109/ICCE.2016.7430673,   Elsevier: Scopus)
22.Takafumi Katayama, Takaaki Hamamoto, Tian Song and Takashi Shimamoto :
Motion Estimation Algorithm for Spatial Scalability in H.264/SVC,
Proceedings of International Workshop on Nonlinear Circuits, Communication and Signal Processing (NCSP'11), 356-359, Tianjin, China, Mar. 2011.
23.Takaaki Hamamoto, Takafumi Katayama, Tian Song and Takashi Shimamoto :
Novel Variable Search Range Selection Algorithm for H.264/SVC,
Proceedings of International Workshop on Nonlinear Circuits, Communication and Signal Processing (NCSP'11), 316-319, Tianjin, China, Mar. 2011.
24.Takafumi Katayama, Takaaki Hamamoto, Tian Song and Takashi Shimamoto :
Motion Based Low Complexity Algorithm for Spatial Scalability of H.264/SVC,
Proceedings of 2010 IEEE 17th International Conference on Image Processing (ICIP2010), 4213-4216, Hong Kong, Sep. 2010.
(Elsevier: Scopus)
25.Kentaro Takei, Naoyuki Hirai, Takafumi Katayama, Tian Song and Takashi Shimamoto :
Real-Time Architecture for Inter-layer Prediction of H.264/SVC,
Proceedings of Pacific-Rim Conference on Multimedia (PCM2010), 235-244, Shanghai, Sep. 2010.
26.Takafumi Katayama, Takaaki Hamamoto, Tian Song and Takashi Shimamoto :
Low Complexity Inter-Layer Motion Estimation Algorithm for H.264/SVC,
Proceedings of World Automation Congress (WAC2010), No.168, Kobe, Sep. 2010.
27.Kentaro Takei, Takafumi Katayama, Tian Song and Takashi Shimamoto :
Complexity Reduction Algorithm for Enhancement Layer of H.264/SVC,
The Third International Symposium on Intelligent Informatics (ISII2010), No.228, Dalian, Sep. 2010.
28.Yoshitaka Morigami, Tian Song, Takafumi Katayama and Takashi Shimamoto :
Low Complexity Algorithm for Inter-layer Residual Prediction of H.264/SVC,
IEEE International Conference on Image Processing (ICIP2009), 3761-3764, Cairo, Egypt, Nov. 2009.
(DOI: 10.1109/ICIP.2009.5414378,   Elsevier: Scopus)
29.Takaaki Hamamoto, Takafumi Katayama, Tian Song and Takashi Shimamoto :
Mode Selection Method for Hierarchical B-picture of H.264/SVC,
The Second International Symposium on Intelligent Informatics (ISII2009), QinHuangDao, China, Sep. 2009.
30.Takafumi Katayama, Yoshitaka Morigami, Tian Song and Takashi Shimamoto :
Improvement of Motion Estimation with Modified Search Center and Search Range for H.264/SVC,
The 24th International Technical Conference on Circuits/Systems, Computers and Communications (ITC-CSCC2009), 401-404, Cheju, Jul. 2009.

Proceeding of Domestic Conference:

1.Kohtaroh Sekihara, Tian Song, Takafumi Katayama and Takashi Shimamoto :
JEMのイントラ予測符号化における情報隠蔽技術に関する研究,
画像符号化シンポジウム(PCSJ2018), No.P-1-14, 44-45, Nov. 2018.
2.Kazufumi Enoki, Takafumi Katayama, Kazuki Kuroda, Takashi Shimamoto and Tian Song :
携帯端末向け参照フレーム削減によるHEVCの低消費電力実現に関する研究,
Journal of Shikoku-Section Joint Convention of the Institutes of Electrical and Related Engineers, No.13-24, 175, Sep. 2016.

Et cetera, Workshop:

1.Takafumi Katayama, SHI WEN, Tian Song and Takashi Shimamoto :
SHVCのエンハンスメントレイヤ符号化時における低演算アルゴリズムに関する研究,
映像情報メディア学会技術報告, Vol.40, No.6, 159-162, Feb. 2016.