The 8th Hosei University IIST International Colloquium

Trends in Advanced Integrated
Science and Technology
This colloquium is the series of events hosted by IIST, Hosei University to introduce thecurrent research development in the field of integrated science and technology. In the8th IIST colloquium, distinguished guest speakers are invited from Egypt and China. Dr.
Mohammed S. Sayed from E-JUST (Egypt-Japan University of Science and Technology,Egypt) will be presenting the advanced method of hardware acceleration of video coding
for the video conference/ surveillance video monitoring system. Dr. Gang He fromSWUST (South West University of Science and Technology, China) introduces his wide
range of research projects in biomedical engineering. Another distinguished guest
speaker Dr. Okamoto, the leading researcher of cryptography, will be introducing thehot topic of cryptocurrency. In addition to those guest speakers, IIST faculties Drs.
Katsura, Iyatomi and Zhou will be introducing their research topics and big fundedprojects.
Date: 13:30-16:50 Feb. 28th, 2018
10:00-11:40 Mar. 1st,2018
Venue: Multimedia Hall, B1F Building West, Hosei University Koganei Campus
3-7-2 Kajino cho, Koganei City, Tokyo 184-8584 JAPANhttp://www.hosei.ac.jp/access/koganei.html
Hosted by Hosei University IIST: Institute of Integrated Science and TechnologyandGlobal Education Center, Hosei University

Bitcoin and Cryptocurrencies
Dr. Tatsuaki Okamoto
Fellow, Nippon Telegraph and Telephone Corporation (NTT), Japan

ABSTRACT: The idea of Bitcoin was proposed in 2008 and its operation was started in 2009 by theinventor. Satoshi Nakamoto. Bitcoin is a truly innovative currency since there is no authority to issue
its coins. It is constructed on cryptographic primitives such as digital signatures and cryptographic hasfunctions. We often call Bitcoin a cryptocurrency. The novel concept of Bitcoin has inspired a lot ofpeople to create various kinds of cryptocurrencies, and we now have more than 1000 cryptocurrencies.
In my talk, I will first introduce the basic cryptographic techniques, digital signatures and hashfunctions, necessary for understanding Bitcoin and other cryptocurrencies. I will then explain how
Bitcoin works without an authority. The key techniques are transactions, proof of works (PoW) andblockchains. I will show several defects of Bitcoin and some trials to overcome these defects.
Cryptocurrencies are not just a replacement of real cash, but innovate novel applications of currencies
that are impossible by real cash. I will show some such cryptocurrencies.

BIOSKETCH: Tatsuaki Okamoto has been working for NTT in the researchand development of cryptography, information security, natural language
processing and network architectures. He has assumed the leading roles forseveral projects on electronic money, electronic voting, public-key
infrastructures (PKI), cryptographic algorithms, machine translation of naturallanguages, and standardization. He is a (co-)author of more than 150 academic
papers and a (co-)inventor of a number of patents. Okamoto served as President of the Japan Society
for Industrial and Applied Mathematics (JSIAM) in 2007-2008, Director of International Associationof Cryptology Research (IACR) in 1999-2001, Director of the Institute of Electronics, Information andCommunication Engineers, Japan (IEICE) in 2001-2003, and program chair of many internationalconferences. He has been a member of several advisory committees for the Japanese government, anda guest professor of the Graduate School of Informatics, Kyoto University, Japan. Okamoto received
the best achievement award (Kobayashi memorial award) from the IEICE in 1993, the distinguishedresearch award from the Science and Technology Agency, Japan in 1997, the Certicom ECC
Technology Award in 2007, the 2009 distinguished lecturer award from the IACR, Medal with Purple
Ribbon in 2012, and RSA conference award (mathematics) in 2017. He received his undergraduate,
master's, and doctor degrees in engineering of applied mathematics from the University of Tokyo,
Japan.

Introduction to Coding Theory: Mathematical Foundation
Dr. Toshiyuki Katsura (IIST, Hosei University)

ABSTRACT: Coding theory is the area to study the properties of codes. It has various aspects, andamong them we treat error-correcting codes. This is the theory for the correction of errors in transmitted
data, and in the theory we use mathematics in a big way. For error correction we add extra data bits tomake the transmission of data more robust to interference on the transmission channel. I will explain
what is the essential point for the theory. Then, starting from the definition of linear code, I willsummarize fundamental notions and facts in the theory. I will also explain some examples of codes, inparticular, the Reed-Solomon code, which is used for correcting errors by scratches and dust of music
CD, and QR code, etc. Finally, I will give a very rough survey of the theory of algebraic geometriccode that is a generalization of Reed-Solomon code.

BIOSKETCH: Toshiyuki Katsura was Professor of the University of Tokyo
from 1992 to 2009, and he acted as Dean of the Graduate School ofMathematical Science in 2006-2009. Since 2009, he has been Professor ofHosei University and Emeritus Professor of the University of Tokyo. His
specialty is algebraic geometry, in particular, he studies algebraic varieties inpositive characteristic, which are used for coding theory and cryptography. He
also served as Director of the Mathematical Society of Japan in 1997-2001, andas Cooperation Member of Science Council of Japan in 2011-2017. He serves now as Advisor toPresident of the Mathematical Society of Japan. He was awarded Algebra Prize of the MathematicalSociety of Japan in 2017 for the study of algebraic geometry in positive characteristic. He received his
undergraduate and master’s degrees from the University of Tokyo, and his doctor degree in sciencefrom Tohoku University.

Hardware Accelerators for HEVC Encoder in Video Conferencing andSurveillance Applications
Assoc. Prof. Mohammed S. Sayed
ECE Department, Egypt-Japan University of Science and Technology
ABSTRACT: The H.265/HEVC video coding standard [2] added huge
computational complexity to achieve double the compression ratio (i.e. 50% bitrate reduction) for the same video quality in comparison with the preceding
H.264/AVC standard. This high computational cost presents a big challenge forreal-time compression of video data. Integer-pixel and fractional pixel motion
estimation, DCT and quantization, and intra-prediction modules represent
almost 90% of the processing load of the HEVC encoder. Video conferencing
and surveillance applications have unique characteristics that can be exploited
to reduce the tremendous processing load in the HEVC encoder. Special attention should be given tothese applications due to their importance. In such applications, real-time processing and low latency
are not privilege but a must. We are trying to tackle this problem by developing and implementing
hardware accelerators for the most computational intensive modules in the HEVC standard. Thesemodules are Integer-pixel and fractional pixel motion estimation, DCT and quantization, and intraprediction. Building such accelerators involve working at both the algorithmic and architecture levels.
We target video conferencing and surveillance applications so we exploit their unique characteristic ofhaving a relatively fixed background in a period of time.
BIOSKETCH: Dr. Mohammed Sharaf Sayed received the B.Sc. degree in Electronics andCommunications Engineering from Zagazig University, Zagazig, Egypt, in 1997 and he received theM.Sc. and Ph.D. degrees in Electrical and Computer Engineering from University of Calgary, Calgary,
Canada in 2003 and 2008 respectively. Dr. Sayed is currently an Associate Professor and Acting
Chairperson of the department of Electronics and Communications Engineering, Egypt-Japan
University of Science and Technology, Egypt. His research interests include Video Coding, DigitalSystems Design, System-on-Chip, Embedded Vision Systems, and Wireless Body Area Networks. Dr.
Sayed received several awards both in Canada and in Egypt. He has one US patent and fivecontributions to the H.264/MPEG-4 standards, two of them included in the standard’s reference
hardware model. Dr. Sayed authored and co-authored more than 70 international publications. He
managed and participated in several national/international research and development projects. Dr.
Sayed acted as a reviewer for the IEEE Transactions on Circuits and Systems for Video Technology,IEEE Transactions on Circuits and Systems I, IEEE Transactions on VLSI, IEEE Transactions onIndustrial Electronics, Journal of Visual Communication and Image Representation, and IET Image
Processing Journal.

Signal Processing Techniques for Multimedia SystemsAssoc. Professor Jinjia Zhou
IIST, Hosei University
ABSTRACT: For the next-generation information society, the Internet of Things (IoT) is expected toconnect everyone and everything (video, audio, and texting) in a seamless network. The IoT will leadto unprecedented explosion of multimedia data which is increasingly becoming the “biggest big data.”
It covers from everyone’s experiences to everything happening in the world. As a result, the current
systems will suffer from huge cost in transfer and store the huge volume of data. Hence, the efficiencyof data collection mechanism is going to be challenged. This talk introduces various applications thatenhance the world of multimedia. Furthermore, the advanced multimedia compression/coding
techniques are described. Finally, future immersive multimedia system is discussed.
BIOSKETCH: Jinjia Zhou received B.E. degree from Shanghai Jiao Tong
University, China, in 2007. She received M.E. and Ph.D. degrees from Waseda
University, Japan, in 2010 and 2013, respectively. From 2013 to 2016, she wasa junior researcher with Waseda University, Fukuoka, Japan. Currently she isan Associate Professor with Hosei University. During 2017-2018, She is alsoa senior visiting scholarship in State Key Laboratory of ASIC &System, Fudan University, China. Her interests are in algorithms and VLSI architectures for
multimedia signal processing, especially in low-power high-performance VLSI design for video
codecs including H.265/HEVC (High Efficiency Video Coding) and H.264/AVC.
Dr. Zhou was selected as a research fellow by the Japan Society for the Promotion of Science during
2010-2013. She is a recipient of the Chinese Government Award for Outstanding Students Abroad of2012. Dr. Zhou received the Hibikino Best Thesis Award in 2011. She was a co-recipient of ISSCC
2016 Takuo Sugano Award for Outstanding Far-East Paper, the best student paper award of VLSI
Circuits Symposium 2010 and the design contest award of ACM ISLPED 2010. She participated thedesign of the world first 8K UHDTV video decoder chip, which was granted the 2012 Semiconductorof the Year Award of Japan.

From Cell Culture to Exoskeleton:
A Sketchy Introduction to the Engineering Part of BME.
Assoc. Prof. Gang He
Medical Imaging Technology, Southwest University of Science & Technology

ABSTRACT: Biomedical engineering (BME) is the application of engineering
principles and design concepts to medicine and biology for healthcare purposes,
which seeks to close the gap between engineering and medicine, combining thedesign and problem-solving skills of engineering with medical biologicalsciences to advance health care treatment. For a demonstration of the typicalengineering skills used in BME, this talk presents some actual systems such as
automatic cell culture system (which is used in tissue engineering),
glycosylated hemoglobin analyzer, exoskeleton system and other medical devices that designed by thespeaker.
BIOSKETCH:.
Dr. Gang He received the B.S. degree in Engineering Mechanics from Sichuan University, Chengdu,
China, in 2006. He studied Biomedical Engineering for seven years during when he received the M.S.
degree in 2009 and received the Ph.D. degree in Professor GuangFu Yin’s Labotorary of Sichuan
University in 2013. He worked as Post doctorate at the Sichuan University for two years in the fieldof First principle calculations on Titanium materials. He worked as a Assoc.Prof. at Southwest
University of Science and Technology, Mianyang, Sichuan Province, China since 2015.

The World of AI and Machine Learning (Tentative)
Dr. Hitoshi Iyatomi (IIST, Hosei University)

ABSTRACT: Coming soon.

BIOSKETCH: Coming soon.

PROGRAMDay 1 Feb. 28, 2018
13:30 -13:40

13:40 -14:25

Dr. Kazuo Yana, (Director, IIST)
Opening Remarks
SESSION 1
Dr. Tatsuaki Okamoto (Okamoto Res. Lab, NTT)
Invited Lecture
Bitcoin and Cryptocurrencies

14:25-15:10

Dr. Toshiyuki Katsura (IIST, Hosei University)
Introduction to Coding Theory: Mathematical Foundation

15:10-15:20

INTERMISSIONSESSION 2
15:20-16:05
Dr. Mohammed S. Sayed (E-JUST, Egypt)
Invited Lecture
Hardware Accelerators for HEVC Encoder in Video Conferencing andSurveillance Applications
16:05-16:50

Dr. Jinjia Zhou (IIST, Hosei University)
Signal Processing Techniques for Multimedia Systems
Day 2 Mar 1st, 2018

SESSION 3
10:00-10:45
Dr. Gang He (SWUST, China)
Invited Lecture
From Cell Culture to Exoskeleton: A sketchy introduction to theengineering part of BME
10:45-11:30

Dr. Hitoshi Iyatomi (IIST, Hosei University)
The World of AI and Machine Learning (Tentative)

11:30-11:40

Dr. Jinjia Zhou (IIST, Hosei University)
Closing Remarks