Upgrade to Pro
— share decks privately, control downloads, hide ads and more …
Speaker Deck
Features
Speaker Deck
PRO
Sign in
Sign up for free
Search
Search
ZFXY: a 3D spatio-temporal tiling scheme propos...
Search
Hidenori FUJIMURA
March 16, 2022
Technology
0
270
ZFXY: a 3D spatio-temporal tiling scheme proposal for optimized data access
UN Open GIS Initiative Monthly VTC, 2022-03
Hidenori FUJIMURA
March 16, 2022
Tweet
Share
More Decks by Hidenori FUJIMURA
See All by Hidenori FUJIMURA
みんなに伝わる防災マップ
hfu
0
82
未来の繁栄のためのスマート地図
hfu
0
130
Smart Maps for the prosperity in the future
hfu
0
210
Smart Maps and Bazaar
hfu
0
160
Sensemaking with Smart Maps
hfu
0
89
Smart Mapsfor the United Nations,with the United Nations
hfu
0
130
UN Smart Maps
hfu
0
160
スマート地図バザールによる地図XMLのタイル配信
hfu
0
110
国土地理院におけるベース・レジストリの整備とDX推進への取り組み
hfu
0
260
Other Decks in Technology
See All in Technology
Goss: New Production-Ready Go Binding for Faiss #coefl_go_jp
bengo4com
0
1.1k
Goss: Faiss向けの新しい本番環境対応 Goバインディング #coefl_go_jp
bengo4com
0
1.4k
会社にデータエンジニアがいることでできるようになること
10xinc
9
1.5k
Go で言うところのアレは TypeScript で言うとコレ / Kyoto.なんか #7
susisu
1
340
RAID6 を楔形文字で組んで現代人を怖がらせましょう(実装編)
mimifuwa
0
300
PFEM Online Feature Flag @ newmo
shinyaishitobi
2
340
AIが住民向けコンシェルジュに?Amazon Connectと生成AIで実現する自治体AIエージェント!
yuyeah
0
260
LLMエージェント時代に適応した開発フロー
hiragram
1
390
20250818_KGX・One Hokkaidoコラボイベント
tohgeyukihiro
0
130
メルカリIBIS:AIが拓く次世代インシデント対応
0gm
2
520
Devinを使ったモバイルアプリ開発 / Mobile app development with Devin
yanzm
0
170
モダンフロントエンド 開発研修
recruitengineers
PRO
2
110
Featured
See All Featured
Site-Speed That Sticks
csswizardry
10
780
Evolution of real-time – Irina Nazarova, EuRuKo, 2024
irinanazarova
8
890
[Rails World 2023 - Day 1 Closing Keynote] - The Magic of Rails
eileencodes
36
2.5k
Faster Mobile Websites
deanohume
309
31k
Why Our Code Smells
bkeepers
PRO
338
57k
XXLCSS - How to scale CSS and keep your sanity
sugarenia
248
1.3M
Easily Structure & Communicate Ideas using Wireframe
afnizarnur
194
16k
Distributed Sagas: A Protocol for Coordinating Microservices
caitiem20
333
22k
GraphQLの誤解/rethinking-graphql
sonatard
71
11k
Thoughts on Productivity
jonyablonski
69
4.8k
Raft: Consensus for Rubyists
vanstee
140
7.1k
VelocityConf: Rendering Performance Case Studies
addyosmani
332
24k
Transcript
ZFXY: a 3D spatio-temporal tiling scheme proposal for optimized data
access Hidenori (UN Vector Tile Toolkit / Geospatial Information Authority of Japan)
Introduction of background: 3D geospatial projects in Japan
GSI secured budget for point cloud data (regular budget [2
million USD] + external supplementary budget)
Shizuoka Prefecture is completing provision of point cloud data as
Open Data
City Bureau of MLIT has been leading 3D city modeling
throuh Project PLATEAU
Tokyo Metropolitan Government started Tokyo Digital Twin Project
3D Spatial Information Infrastructure project led by Ministry of Economy,
Trade, and Industry / IPA DADC
Civic, humanitarian, and educational project: DRONEBIRD led by Taichi -
3D point cloud from photogrammetry
Our UNVT colleague Takayuki appointed in 3D spatial information infrastructure
design committee by IPA DADC.
UNVT Community is working on: How can we optimize access
to 3D geospatial data?
Tile: industry standard in web maps {z}/{x}/{y} z: zoom index,
x: west-east index, y: north-south index
ZFXY: 3D extension to the tile-scheme {z}/{f}/{x}/{y} z: zoom index,
f: height index, x: west-east index, y: north-south index
f: height index, or floor-number index f = floor(n *
h / H) where h = elevation [m], n = 2 ^ z, and H = 2 ^ 25 [m] Height of a voxel represented by a ZFXY with z=25 is 1 [m].
https://github.com/unvt/zfxy-spec
https://github.com/unvt/zfxy-ruby
Demo
https://unvt.github.io/zfxy-ruby/
50cm GSD at z=26 https://x.optgeo.org/zfxy-ruby/#22.28/35.65779459/139.70209432/-85.5/60
https://geolonia.github.io/zfxy/#8.14/35.431/138.612/-45.6/60
https://github.com/geolonia/zfxy
Temporal extension
ZFXY: 3D extension to the tile-scheme {z}/{f}/{x}/{y}/{t} z: zoom index,
f: height index, x: west-east index, y: north-south index, t: temporal index
t: temporal index, or pomodoro code Time.now.to_i / 1800
Motivation of UNVT Community to join We need data to
prove the value of ZFXY. We are happy to build prototypes with your data.
None
None