Report for ISRS2024

The 29th International Symposium on Remote SensingatNational Chung Hsing University,
Taichung, Taiwan

24-26 April 2024
EditedTrinh Xuan Truong
Shoki Shimada
Chihiro Naito
Eiko YoshimotoSupported by
One Health One World (OHOW),
Institute of Industrial Science, The University of Tokyo, Japan
SpringGX and JAXA

Report for ISRS2024
Schedule
Table 1. The schedule of the ISRS2024 conference.
Date

Activities

Venue

2024/4/23 (Tuesday)

Move from Japan (Narita) to Taichung2024/4/24 (Wednesday)

ISRS2024 (Day 1)

National Chung Hsing
University

2024/4/25 (Thursday)

ISRS2024 (Day 2)

National Chung Hsing
University

2024/4/26 (Friday)

ISRS2024 (Day 3)

National Chung Hsing
University

2024/4/27 (Saturday)

Move from Taichung to Taipei. Visit
Taipei 101 and the wind-damper
system. Flight from Taipei to Japan.

Participants
Table 2. The list of participants from Takeuchi lab.

Name

Grade/ Position

Affiliation

Role

Wataru Takeuchi

Professor

Takeuchi lab, IIS

Committee member ofthe conference, andPresenter

Eiko Yoshimoto

Staff

Takeuchi lab, IIS

Booth manager

Khin Myat Kyaw

Assistant professor

Takeuchi lab, IIS

Presenter

Xuan Truong Trinh

Project Researcher

Takeuchi lab, IIS

PresenterYu Yang

D3

Takeuchi lab, IIS

Author of themanuscript

Shoki Shimada

D3

Takeuchi lab, IIS

Presenter

Chihiro Naito

D2

Takeuchi lab, RCAST

Presenter1. ISRS2024 (4/24, 4/25, and 4/26)

0●Overview
There are 106 oral presentations (including 56 student competitions), and 45 poster
presentations focusing on the various remote sensing applications. Each oral presentation iscomposed of 12 minutes speaking, and 3 minutes Q&A.
On the first day, there were three keynote speeches about (1) “Overview of Earth Remote
Sensing Development of Taiwan Space Agency”, (2) “From YOLOv4 to YOLOv7”, and (3)Past, Present and future of Geostationary Ocean Color Imager” from distinguished researchers
in the Taiwanese remote sensing community.
A Young-scholar night event was held on the second day where the communications amongst
students from various universities and countries were facilitated through collaborative works toanswer questions about the topics in Taiwan.
On the third day, the closing ceremony and awards for student competitions were held. Naitosan (D2), and Shimada-san (D3) received “Excellent student paper award”, and “Outstanding
student paper award”, respectively. Through the conference program, “One-Health-One-World(OHOW)” booth was prepared to showcase the research activities, and many people wereinterested in.

●

Observation, Discussion, Comments

TopicName

Observation
Discussion/Comments

Presentation
sessions

ShimadaThe presentation topics were quite diverse focusing on the remotesensing data cal/val, new-method development, and machinelearning applications. The range of target variables to be analyzed
was also large. Presentation slides were all well prepared. I couldn’t
get questions from the audience, but the chairperson asked mequestions “Why are the target sites so scattered?”, and “What is theeffect of atmospheric correction parameters acquired by
AERONET?”. I think that those are very important questions interms of the applicability and reliability of my research about thehyper-spectral based solar PV classifications. My response to thefirst question was that “Currently non-c-Si PVs are in limited use, so
we needed to look for a large area in Japan”. The second question
was answered as “It is very much possible that the distance between
the AERONET site and the HISUI image locations affects theatmospheric correction, so it should be improved by using othersatellite based atmosphere measurement outputs”.

Youngscholar night

ShimadaThe young-scholar night was a very enjoyable event, where weinteracted with the students from Taiwanese universities. They
helped us answer questions about the quiz having topics in
Taiwanese society. We also talked about the current research topics.

My
presentation Q&A

TruongConference Poster Presentation: Queries and Suggestions for Future
Work
Poster Queries and Future Work Suggestions
The poster presentation prompted several questions aimed atclarifying the presented content along with valuable suggestions for
future work, detailed below:
1. Rose Angeli Macagga, National Central University(Philippines)● Suggestion: It is proposed that the tube be utilized asa chamber to incorporate different types of sensors.
2. Dimas from National Central University (Indonesia,
Robotics)● Suggestion: Consider simplifying the connectivity
from a 4G module to a 3G module to conserve
energy.
3. Bilguunmaa Myagmardulam, Assistant Professor, Toyama
University● Query: What type of sensor is currently used, andwhat prompted the choice? Is there potential forfurther development with different sensors?
● Response: The project has explored various sensors,
including laser, ultrasound, and radar. Previously,
the device used ultrasound sensors, but issues withnoise led to a switch to laser sensors, which

TopicName

Observation
Discussion/Comments
improved accuracy. Plans for integrating radar
sensors in the next version are underway.

NotableConference

Truong

The following presentations highlighted at the conference exemplify
significant advancements and critical insights across diverse
environmental and technological domains:

Presentations:Insights fromPham Chi Cuong and Tang-Huang Lin
VariousStudies

Title: "Spatiotemporal Change Analysis of Urban Land Use andSprawl Using Remote Sensing and CA-ANN: A Case Study in Ho
Chi Minh City, Vietnam"
Note: Currently focused on urban heat islands, though interested inocean studies.
Tran Thi Linh Chi and Tang-Huang Lin
Title: "Associations between Aerosol’s Deposition and ChlorophyllA Distribution in the South China Sea Based on Multi-Sensor
Satellite Observations"
Focus: Impact of aerosols on Chlorophyll A distribution.
Aji Kusumaning Asri, Chih-Da Wu, and Others
Title: "Advanced Ensemble Learning Model to Accurately Estimate
Benzene Concentration in Vulnerable Residential Area"
Methodology: Utilized ground-based sensors and GIS to extrapolatebenzene concentrations, with discussions around incorporating
atmospheric models similar to those used by Trang.
Shunsuke Ura and Yuji Sakuno
Title: "Marine Plastic Detection Trial Using Near-Infrared
Multispectral Camera and Thermal Infrared Camera"
Challenge: Detecting marine plastics is complex due to similar
spectral responses with other floating objects.
Jhih-Syuan Jhuang and Jen-Jer Jaw
Title: "Toward a Future Design of Point Cloud Processing Platform"

TopicName

Observation
Discussion/Comments
Proposal: Automate segments of the workflow, like segmentation,using advanced AI tools like YOLO to enhance efficiency andaccuracy.
Thi-Kieu-Diem Nguyen and Po-Chun Hsu
Title: "Influence of Marine Heatwaves on Typhoon Intensity in the
East China Sea"
Finding: Increased typhoon intensity linked to marine heatwaves.
Sohee Park and Duk-jin Kim
Title: "Evaluation of the Land Motion and Characteristics Analysis
of Reclaimed Areas along the West Coast of Korea Using TimeSeries InSAR"
Issue: Continuous subsidence in reclaimed areas, posing potential
environmental challenges.

KeynotespeechTruongConference Presentation Overview: YOLO Real-Time Object
Detection
Presenter: Mark Liao
Key Highlights:
Introduction to YOLO: YOLO (You Only Look Once) is renowned
for its real-time object detection capabilities.
Latest Update: YOLOv9 has been released, positioning it as the mostadvanced and effective tool globally for object detection tasks.
Applications:
Real-Time Traffic Control: YOLO's capabilities are leveraged to
manage traffic dynamically, improving flow and reducing
congestion.
Real-Time Blindspot Monitoring: The system enhances vehicle
safety by monitoring blind spots using real-time object detection.
Potential for Mobile Applications: Given its lightweight architecture,
YOLO is suitable for mobile devices, opening up possibilities for
new applications like Ganoderma detection.

TopicName

Observation
Discussion/Comments
Technical Discussion with Mark Liao:
Object Class Definition: Successful deployment of YOLO for
specific tasks like Ganoderma detection requires defining a distinct
object class, which includes parameters such as size, scale, shape,features, and neighboring context.
Human Observation Factors: Adaptation to human-like observation
nuances such as rotation, scale, and generalization is crucial for
improving detection reliability.
Enhancements and Advanced Techniques:
SIFT (Scale Invariant Feature Transform) and SURF (Speeded-Up
Robust Features): These techniques contribute to the robustness andaccuracy of feature detection across various scales.
Learning Models: Exploration of one-shot and few-shot learningmodels to train the system efficiently with minimal data inputs.
This presentation underscores the ongoing advancements in YOLO
technology and its expanding scope in real-time object detection
across different platforms and applications.

Communicati

TruongGreeted Professor Fuan Tsai, Professor Jen Jer Jaw, Professor Wang
Chi Kuei and updated my current situation.

ons with
Professor Jaw has many students with good presentations, and heemphasized on providing good education. Professor Wangencourages my progress with research work.

other
professors

KeynotespeechNaito

In the Keynote speeches, I learned several satellites and facts as thefollowing.
●●●

Taiwan Space Agency (TASA) has launched and operated
the FORMOSAT series (current version 5) satellite which
provides 2 m-resolution panchromatic and 4 m-resolution
multispectral images.
GPS-RO or GNSS-RO refers to radio occultation which
involves the refraction of satellite signals though theatmosphere. The magnitude of refraction depends on theatmospheric substance content.
GeoKOMPSAT is a project that develops the geostationary
satellite system monitoring atmospheric parameters and theocean environment. Geostationary Ocean Color Imager(GOCI) is a sensor onboard COMS or GeoKOMPSAT,

TopicName

Observation
Discussion/Comments●

Presentation

Naito

which monitors ocean color derived from chlorophyll
concentration and other marine surface conditions.
Yolo v4 and v7 developed by Prof. Liao provides solutions
to the smart city traffic problems by detecting and counting
fast-moving objects in traffic.

●

In my presentation, I received a question about validation ofsatellite data and the analysis result. To this question, I
explained that I plan to use ground-measuring data as
comparison. To accomplish it, I will need to collect suchground-measured data, and also determine the appropriate
validation metrics, especially for the vulnerability
assessment result.

●

For other presentations related to my research, topics on soil
moisture data comparison and MODIS NPP recalculation
were interesting. As for soil moisture, Ms. Higuchi from the
National Institute of Technology Matsue college compared
AMSR2 and SMAP soil moisture products with in-situ data
in Mongolia. The interesting findings for me was thatascending data correlated with NDVI, while descending data
did not correlate with NDVI with the larger influence ofvegetation in AMSR than SMAP. (I would like tocommunicate with him later to exchange our knowledge).
With regard to NPP, I learned “the CASA model” whichcalculates NPP based on light use efficiency. The presenterattempted to refine the MODIS NPP with the CASA model.
Although the presenter did not show the result ofcomparison with the existing MODIS NPP, it was
informative for me to know a new idea.

session●●

Addition to these researches, point cloud processing was
also informative. One presenter showed a method forsegmentation of objects with smoothness and weighting
point clouds by distances among objects. Another presenterattempted to extract the round shape of a building byderiving features from a feature algorithm, and applied thesefeatures to PCA.

Figure 1. At the conference site of ISRS2024.

Figure 1-b. Opening ceremony with lab Alumni, Dr. Jeark Principe from The University of thePhilippines.

Figure 2. OHOW booth at ISRS2024.

Figure 3. Giving a presentation at the ISRS2024 oral session.

Figure 4. After the closing ceremony of ISRS2024.

2. Taipei visit (4/27)●●

Overview
On the way back from Taichung to Japan, we took this opportunity to experience the civilengineering infrastructures in Taiwan. There is a high-speed railway (HSR) connecting
Taiwan from north to south. In addition, a significant metro network is in Taipei city. “Taipei
101” is one of the tallest buildings in the world, and there are two things which would bevaluable experiences. One is the elevator which is also one of the fastest in the world. In
addition, there is a “wind-damper” on top of the building. It is the only such infrastructure
open to the public.
Observation, Discussion, Comments

TopicName

Observation
Discussion/Comments

Taiwan HSR

ShimadaThe ride on HSR was convenient as there were very limited
vibrations. It took less than an hour from Taichung to Taipei. Trainsystem was well organized, and it was easy to purchase tickets forforeigners like us, and the train came just on time showcasing thecapability of the railway management.

Taipei metro

ShimadaIt was surprising to see that the Taiwanese Metro system was anextensive train network, which may have improved the city transport
rather than relying on personal cars compared to other big cities in
Asia. It connects many parts of Taipei, and the trains came on time.
There is also a metro connecting Taipei station and Taoyuan airport.

Taipei 101

ShimadaTaipei 101 stood out from the surrounding buildings. The elevator
taking us from the ground to several hundreds meters high only took
less than a minute with the speed of 60 km/h at maximum. The
engineering knowledge behind the wind-dumper at the top-floors
was very impressive. We learned how it worked in case of a large
earthquake, or strong wind events.

Taichung
Traffic

TruongTraffic Observations in Taichung City
General Traffic Composition:
In Taichung City, the traffic primarily comprises a mix of cars andmotorbikes. Walking is generally less preferred, potentially due tothe heavy presence of motorized vehicles or the layout of the city's
infrastructure.
Adaptations in Traffic Rules for Mixed Vehicle Environments:
Intersection Design:Motorbike Waiting Areas: To leverage the agility of motorbikes,
waiting areas at intersections are specifically allocated in front ofcars. This arrangement facilitates quicker starts for motorbikes when
signals change, enhancing flow efficiency.
Turning Rules:
Two-Stage Turns for Motorbikes: When turning left, motorbikes areoften required to execute a two-stage turn rather than turning
directly. This rule mandates that motorbikes first move to a
designated midpoint on the road before completing the left turn. Thismethod not only enhances safety by reducing conflicts between
motorbikes and other vehicles but may also help in alleviating traffic
congestion.
These observations indicate tailored strategies to manage the unique
mix of traffic in Taichung, aiming to enhance safety and optimize
traffic flow. There are potentials to apply this to traffic inTopicName

Observation
Discussion/Comments
bike-heavy countries such as Vietnam.

Taichung
walkability

TruongCitiesNaito

In Taichung City, parking lots for motorbikes are designated onpavements, confined to squares that occupy at most 50% of thepavement area. This arrangement aims to provide reasonable spacefor pedestrian movement. Hanoi has implemented a similar strategy;
however, there have been issues with insufficient space remaining
for pedestrians to walk comfortably. You can read more about the
specific strategies in Hanoi on the VTC News website
https://vtcnews.vn/ke-vach-via-he-phan-rong-de-do-xe-phan-chonguoi-di-bo-toan-goc-cay-bot-dien-ar759978.html .

●I learned about the mechanism of Taipei tuned mass damper,
which is a technique used in skyscrapers around the world. It
was impressive to note that Japanese company,
Kumagaigumi, was involved as one of the constructors.
Similar to Taipei 101, I observed many Japanesecontributions in Taipei and Taichung, such as HSR and the
National Taichung Theater.

●

It was also a pleasure for me to see trees placed on balconies
in many mansions and apartments. Taiwan has legislation topromote greenspaces and protect trees, which may be a
result of or have contribute to residents’ interest in
greenspaces.

Figure 5. Taipei 101 tower seen from the ground.

Figure 6. The view from the observation floor of Taipei 101.

Figure 7. The wind-damper of Taipei 101.

Figure 8: An intersection in Taichung city

23rd -27th April 2024 ISRS2024 at Taichung, Taiwan
Attendances: Prof. Takeuchi, Dr. Khin, Dr. Truong, Shimada, Naito, Yoshimoto
23rd April (Tue) NRT_BR183_13:25_TPE_16:05
Ubus:1623: Taoyuan Airport(桃園空港）→Taichung station (Minzu RD)（台中駅） 320 元（２hs~
２hs & half）

24th April (Wed.) left the hotel at 11:00 by taxi to the venue.

We were prepared for the booth.

We had lunch at the University cafeteria.

13:00- started the conference at the library building, International Conference Hall

Keynote speaker Prof. Jong-Shinn Wu

Keynote speaker Prof. Hong-Yuan Mark Liobreak time!

Keynote speaker Prof. Joo Hyung Ryu

Banquet 18:00-20:00 @13F Ballroom, The Splendor Hotel-Taichung25th Day 2 Sessions @College of Engineering B1 (B13,17,29), 1F, 2F(R226) 9:00-16:45

Session room (day2 and day3)
26th Day 3 closing ceremony @B17 11:45-13:00

Ms. Chihiro Naito won an Excellent Student Paper Award

Mr. Shoki Shimada won the Outstanding Award.

Announced ISRS2025

26th Optional culture tour 13:30~16:30 visited National Taichung Theater

Taichung city, eat, building and so on took a walk every morning and night.

Taichung Park

Taichung Station

Memorandum
1. I had to ensure the booth sign had my full name. Be sure to order The University of Tokyo,
Japan.
2. I thought of writing the schedule on the back of the name card.
3. Pamphlets placed at booths should be easy to hand out.
4. It might be good to have a poster QR or booklet.
5. It is better to consider the display in advance.
6. If possible, it would be good to have OHOW goods.