1. Introduction of the laboratory
Transmit a common understanding that transcends language through satellite
images.
Geomatics Engineering Laboratory
Professor Yuji KUWAHARA
Version of 2021.10.1
Introduction
Geomatics Engineering Laboratory is a laboratory for studying 1) geospatial
information related technologies (4S: RS, GIS, GPS, Sensor) &AI in constructionrelated fields, 2) environmental measurement technologies, 3) new technologies fortelemetry (mainly from the air: processing and analysis of UAV images), 4) groundexperiments to confirm sensor performance, and 5) geographic information generationand processing systems for environmental and disaster prevention. This laboratory
mainly studies aerospace surveying of national land space, which covers information
generation and design of processing systems. If described in the existing field of civilengineering, it is a laboratory that specializes in "surveying," "spatial informationengineering," and "urban spatial analysis." One of the features of the career paths ofstudents in this laboratory is that almost all of them have entered the master's course.
In this laboratory, we hope that you will go on to the master's course. After that, thestudents in this laboratory mainly find jobs in aerial surveying companies,
construction consulting firms, geographic information vendors, and big manufacturing
companies. We believe that a good job for you is aligned with your self-realization as
an engineer or researcher, so please feel free to write your resume or entry sheet, etc.,
and bring it with you. We will write down some harsh comments to help you get
through the selection process, so please refer to them.
There are three main activities in the laboratory: seminars, conference activities,
and writing theses. The following is an explanation of each of these activities. We arelooking forward to welcoming you to our laboratory.
Research Environment
When you enter Geomatics Engineering Laboratory, you will probably be told to "cleanup" and "keep things tidy". The purpose of this is not just to keep the room clean andtidy. I encourage you to keep your room tidy, clean your room, and come to school at a
certain time in the morning (9:30 in the lab) because it will help you develop a rhythm
in your life. I am certain that a professional interviewer can immediately know if aperson is following a systematic rhythm and is enthusiastic about their studies andresearch. You can't do this with a sense of urgency!

SeminarIn our laboratory, we form groups according to the research theme fields shown in
Figure-1, and create an environment where we can brush up our research content andsupport each other, always with the connection of "M2-M1-B4". The seminar will beheld once a week, and students will report on what they have done that week usingppt. Graduate students will ask questions according to your ppt. Professor will ask
only the core questions, so please feel free to defense. Taking research notes isnecessary for every seminar. Please make your weekly milestones clear in the seminar.

Where is the originality in such a method?
Measuring the land from the airand spaceFrom a point perspective to an area perspectiveSurvey means for interpolation of
inaccessible/dangerous/workload-small local
technology

Think about "how to measure".
Think about "how to apply the
results".
"How to measure continuously"Ability to see the earth/region through homogeneous
observation information

Diagnosis of the invisible (multispectral)

Giving data a unique "position" on the earth"Common understanding" about
the shape of the land

Research
Group Map
Application to the generation of measured topographic maps of the earth's topography,Processing/analysis
of synthetic aperture radar data,Processing/analysis of laser profiler data,Processing/analysis of LIDAR
data,Processing/analysis of GPS survey results,Application of UAV (Unmanned Aircraft Vehicle)

Ibaraki Prefecture/Southeast Asia/South Pacific Island Countries/Understanding the Regional
Environment in Africa /Application to Environmental Mapping Ibaraki Prefecture, Thailand, Vietnam,
Marshall Islands, Tuvalu, Tanzania

Environmental Measurement / Application to Urban Design,
CO2, wind direction and speed, temperature and humidity, sunlight intensity

Understanding the impact of the disaster / Application to disaster prevention and mitigation
Continuing survey of topographical changes in affected areas (Otsu Port area)

Figure-1

Academic Conference Activities
In our laboratory, we are actively involved in both "participation" and "planning andmanagement" of lectures, symposia, and workshops organized mainly by " The Japan
Society of Civil Engineers (JSCE ), The Remote Sensing Society of Japan ( RSSJ ), andJapan Geoscience Union ( JpGU )". This is a unique opportunity to get the latest
information from people outside the university, so be sure to participate actively.
Writing a thesis
Theses can be divided into two types: "dissertations" such as graduation theses andmaster's theses, and "academic research papers" such as journal articles. Dissertations
are compulsory written by all students. In addition to that, students are required towrite an "academic research paper" in this laboratory. It may be a little bit difficult towrite it during the master's course, but when you thoughtfully write a thesis, you canlearn a lot of common sense in academia, such as "logical structure, what is an easyto-understand text, and the importance of credits such as reference citations". For thisreason, we have made it compulsory for all master's students to write one paper,
regardless of the outcome. Why don't you take up the challenge? What you get out of
it is different for each person, but I am sure that you will gain valuable experience.
Other Features
As a characteristic of our research field, we actively propose and participate in fusion
research

projects

with

other

fields(cross-departmental/faculty,

cross-

industry/government/academia, international collaborative research, etc.) We aim togrow as one of the laboratories responsible for this type of research (research form).
We are looking forward to working with all of you freshmen, so please consider joining
us. (by Yuji KUWAHARA)
Geomatics Engineering Laboratory
Yuji KUWAHARA
Born on May 1, 1968
Born in Hadano, Kanagawa Prefecture, raised in Oyama, Tochigi Prefecture, engaged
in research on satellite remote sensing and geographic information analysis since 1994.
I have no likes or dislikes. I drink and eat anything. When I get tired, I tend to get asore throat and have no voice.
For provisionally assigned students: If you have already been assigned, I will hold awelcoming seminar on Friday, October 22, 2021 (just a tentative schedule). Pleasebe sure to make time for it.

2. Outline of Research Projects
In the Geomatics Engineering Laboratory, we focus on the development of basic
technologies and analytical applications so that society can realize the application of
spatial information-related technologies in the conservation of the naturalenvironment and land management. As many of our predecessors have pointed out,
there are many limitations and problems with conventional systems and technologies
to counter the future decline in the number of workers in construction-relatedindustries and to improve international competitiveness. In the Geomatics
Engineering Laboratory, we respect various research fields and aim to propose new
spatial information-related technologies for "conservation of the natural environment
and national land management". We are working on applied research topics thatorganically combine multi-scale earth observation data (ground, air, space) and spatial
information using the time axis.
Application of satellite
satellite remote sensing technology for the conservation of the naturalenvironment and land managementResearch on the effective estimation method of driftwood disaster risk areasTime series analysis of long-term land cover change and its direction in semi-arid
land

Time-series analysis of long-term land cover change and its direction in semi-arid
land (targeting the Ar Horqin Banner in Inner Mongolia)A study on the method of generating global levee dataProposal of a new green area evaluation index focusing on the variation of CO2
concentration

Research on liquefaction damage using synthetic aperture radar (for Hinode area,
Itako city)Study on time-series biomass data for all of Japan

Research on the evaluation of beach management projects in South Pacific island
countries

Topographic analysis for identifying driftwood damage locations

Land cover change in Inner Mongolia using satellite images

Dike extraction in Vietnam

CO2 observation points in Ibaraki prefecture

Development of innovative technologies through technological integration of ICT and
multiple fields
Study of flood prevention using AI technology

Extraction of slope disaster areas in steep mountainous terrain by using superresolution technology



Verification of the resolution characteristics of UAV-mounted cameras andinvestigation of the island environment

Flood countermeasures in Sawatari River

Extraction of slope disaster areas in Nepal

Development of environmental measurement technology
technology by using multi
multi-scale big data

Experimental study for estimating the effective range of observation of fixed-point
observation data (for CO2 concentration measurement)

Analysis of the trend of long-term CO2 concentration data variation in the living
environment (in Ibaraki Prefecture)

Stevenson screen for observing CO2 concentration

Change in CO2 concentration per hour

The challenge to new technology
Generation of information on marker points using a laser scanner

2-way CO2 sensor



Atmospheric CO2 observation using the DOAS method (Differential Optical
Absorption Spectroscopy)Generation of evacuation support information MAPCreating SafetyMAP and future simulation

Development of duck damage prevention system in lotus field using infrared
camera and drone3. Laboratory Members (FY2021)
Faculty
Yuji KUWAHARA
Dr. Eng., Professor
Faculty Member, Global and Local Environmental Co-creation Organization (GLEC),
Ibaraki University
Faculty members who graduated from our lablab (working on the same project)
Teppei ISHIUCHI
Dr. Eng., Assistant Professor, School of Business and Regional Development, Miyagi
University
Researchers working together on research projects
Osamu SAITO
Dr. Eng.
Part-time Lecturer, Department of Information Engineering, Ibaraki University /Part-time Lecturer, Faculty of Informatics, University of Tsukuba
Fukuyama Consultant / Udom Co.
These are the researchers who collaborate with us on each project or theme. They are
not exclusive to the Research Group.
Overseas Researcher, Ibaraki University
Wudabalaqiqige
Researcher, Ph.D
The Graduate School of Science and Engineering, Doctor's Program
Social Infrastructure System Science
D4]
Takahiro KIKUCHI
D3]
Koji SHIMAZAKI
The Graduate School of Science and Engineering, Master's Program
Major in Urban and Civil Engineering
M2]
Takashi KIGURE
XU Yuyang

Takumi SHINBO
Shingo TOYODA
Hikaru YOSHIDA
LI HanM1]
Masato OGASAWARA
Yuko SATOTAN Yan Ling
GONG Nan
Postgraduate, the College of Engineering
Department of Urban and Civil Engineering, the College of Engineering
Undergraduate
B4]
Yuki NAKAI
Yoshihiko MURANAGA
Yoshiyuki MORISHITA
Karen WATANABE
Students in the lab
We all get along very well in our lab, from seniors to juniors!
When we get tired from our research works, we chat with each other at the big desk inthe student room. When we have free time, we go to the nearby convenience store
together. We also like to gather in izakaya to have a drink. (We are currently refraining
from doing so because of the Covid-19.) When we do research, we do research seriously,
and when we play, we play with all our might.

4. Introduction to our research environment
Based on the recognition that the maintenance of the physical and humanenvironment is the first step in safety management, we have taken the following
measures through discussions between faculty and students. Necessary equipment isbeing purchased regularly, and it will be fully used once installed. Although not all of
the equipment is the latest model, it is maintained with an emphasis on function.
For physical safety
Eliminate taco-style wiring using OA strips, protection against lightning currents
entering through LAN cables, protection of data servers using UPS, full installation of
LCD monitors, fixing of furniture to walls (earthquake countermeasures), permanent
installation of gargle corners and sterilizing alcohol corners, and installation of CO2
concentration measuring devices (improvement of indoor air quality).
Protection of information
information
Thorough user management of servers, regular backup of server data, resident virus
software designated by the IT department, room access control (using student ID
cards), CD/DVD protection by installing lockable storage devices, management ofequipment and supplies lists using the intranet
To ensure the health and physical condition of users
Take a walk or stare into the distance after working for an hour straight, ventilate theroom frequently, throw away garbage regularly, keep the room tidy.
Student
Student RoomThis is the student room, where all students from 4th year to Dr. share the large desk.
We believe that the most effective use of a fixed space is to ensure that students havethe appropriate space for their needs. The desks are also equipped with four LAN
cables and a PC for common use. However, it is important to handle personal valuables,
so each student has one locker space with a lock. There are many bookshelves on thenorth wall, and each student is assigned a space (roughly two levels) to put their books
and other materials. This room is managed by M1, who is in charge of garbage
management, arranging necessary equipment, and others.

Surveying Machine SpaceIn our laboratory, we have our GPS equipment, total stations, and auto-levels forsurveying. In 2010, we introduced a new total station for student training. To utilize
these items for a long time, we have set up this space to place them. The total stationis placed on a steel frame to prevent injury from the tripod, and the battery charger isplaced via an OA tap to prevent fire from occurring during charging.

Analysis RoomThis room is set up for the analysis of satellite data and geographic information. A PC
and related devices are placed in front of the entrance, and a record is taken
automatically with a faculty/student ID card when entering and leaving the room. So,
students in the research group always carry their faculty/staff/student ID cards intheir name folders as name tags. We also post announcements to warn students about
using the PC for more than one hour continuously. We have also installed a CO2
concentration measuring device to monitor the air quality in the rooms (especially toprevent influenza in winter). The faculty and staff conduct a simple operation checkalmost once a week to ensure that the PC is always working properly.
The number of PCs is 11 (one of them is a server) based on the number of assigned
students. All PCs are installed with software for writing texts, tables, presentations,editors, a C language compiler, image analysis software, GIS engine, and dedicatedsoftware for satellite data analysis. In addition, 3D computer graphics software anddedicated software for aerial photogrammetry have been installed so that many spatial
information analyses can be performed in this analysis room. A huge amount of files
are generated, but in this regard, we have set up one (Tera) server for each of thefollowing two perspectives: 1) storage of work-in-progress files, and 2) storage andretrievaloforiginalandcompleted

data

and

papers

from

all

PCs.

Kim Jinyoung ClockThis is a clock donated by Dr. Kim Jinyoung of the University of Tokyo, who wasinvolved in the research activities of our research group until 2009. We will do our best
to make a research discovery and achieve a result corresponding to the amount of timeengraved on it.

Preparation RoomThis room is located in the N3 building, which is different from the student rooms andthe analysis room that are located in the S2 building. The preparation room isequipped with the necessary workbenches, tools, and equipment for environmental
observations and experiments. In addition, two new advanced PCs have been installed,which are used for processing high-resolution images taken by UAVs and performing
heavy analyses such as inundation simulations. In addition, meeting space has been
installed and used for research meetings and presentation practice. In all of theserooms, it is essential to keep them tidy to ensure "safety first" and "to be able to findwhat you need when you need it."Intranet
There is an enormous amount of equipment used in research, such as satellite data,
geographic

information,

paper

maps,

surveyingequipment,

andsurveying

instruments. These devices must be "working properly" and "ready for use" whenneeded. For this reason, we have established an intranet to allow users to search forinformation on where and what information is available. These operations,information construction, and organization are the result of the efforts of faculty, staff,
and students working together.

IntraPages Home Page

IntraPages Satellite Image List

Intra

Page

SampleImagesScanner
The long-awaited color image scanner for A0 size has been installed. There are many
documents such as maps and drawings that exist only in paper form. This scanner isbeing used to transfer these materials to the PC. We hope to use it with utmost care.
Printer
We have a color laser multifunction printer, an A1 inkjet printer, and a duplex inkjet
printer (A3 printer). We usually use the inkjet printer with recycled paper. The color
laser and A1 printer are used mainly for publishing documents.
File ServerThis is a device for storing important data. It is equipped with an uninterruptible
power supply so that it can cope with unexpected power failure. The user management
and file management of this device are updated and changed regularly.

Air conditioning equipment
Air purifiers and humidifiers are installed in the student rooms and analysis rooms toprevent allergies and dryness.

Measures against COVIDCOVID-19
As measures against COVID-19, we have newly installed transparent boards, plastic
partitions, and alcohol for hand disinfection. In addition, we try to ventilate the room
frequently. Moreover, all PCs have been equipped with webcams and headsets forremote conferencing.