Monthly Archives: May 2020

International Journal of Built Environment and Sustainability (IJBES)

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Our third published international journal for this year 2020. It’s a Web of Science (WoS) indexed journal with an extensive peer review stages:

Title: “3D Topological Validation of Compact Abstract Cell Complexes (CACC) Data Structure for Buildings in CityGML”

Journal: International Journal of Built Environment and Sustainability (IJBES)

Volume: Vol. 7, No 2, 2020

DOI: 10.11113/ijbes.v7.n2.457

Link: https://ijbes.utm.my/index.php/ijbes/article/download/457/201

Feel free to read and circulate among your research colleagues.

#topology #data #dataanalytics #datamanagement #analytics #bigdata #geomarketing #3d #constellation #datascience #classified #gis  #journal  #datastructure

Covid-19 Spatial Data Mining

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Overwhelmed with Covid-19 spatial data mining, then I realized that the next step will going to take some time. Can you guess how long does it take to complete the geocoding process? Or do you mind to share which platform perform better? I’ve geocoded 200,000++ addresses.

3D MESH AND POINT CLOUDS (Part 2)

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This post is related with my previous post regarding eyescloud3d by eCapture3D lead by Miguel González Cuétara, Guillermo De Miguel Retortillo and their team.

This time, I’m using series of 51 aerial photos taken from DJI Phantom 4 with the altitude of 150m. The images are taken at our Universiti Teknologi Malaysia (UTM) Johor Bahru campus.

In less than 30 minutes, the outputs are ready. Bare in mind that, there’s no use of mighty computing machine to process this (cloud processing), no prior knowledge needed, no Omega Phi Kappa, just photos and results. There you go. Less hassle. Interesting. Enjoy the campus view!

3D Mesh and Point Cloud Generation

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I’m amazed with the achievements from eCapture Research and Development SL. Today I’ve generated point clouds and 3D mesh from series of 49 photos taken via mobile vehicle. I’ve tested two products.

The first product, I call it as product A, it requires users with prior knowledge about sensor size, camera focal length, coordinate projection, etc. Experience in handling spatial data is an advantage. Took almost 30 minutes processing time and expensive computational cost (desktop based).

On the other hand, by using eyescloud3d I’ve managed to generate the model within 15 minutes (output as shown). And most importantly, no prior background knowledge needed.

Congratulations to Guillermo, Miguel and the team for your R&D. Fascinating.

Our lab at Universiti Teknologi Malaysia (UTM) have 5 years MoU research collaboration with eCapture Research and Development SL. We have the privilege to conduct scientific research using their products. Students are eligible to utilize it, feel free to let me know if you’re interested.

The accuracy? You may read our following international publications:

1. DEVELOPMENT OF 3D CITY MODEL USING VIDEOGRAMMETRY TECHNIQUE
(https://www.int-arch-photogramm-remote-sens-spatial-inf-sci.net/XLII-4-W16/221/2019/isprs-archives-XLII-4-W16-221-2019.pdf)

2. 3D MODEL FOR INDOOR SPACES USING DEPTH SENSOR.
(https://www.int-arch-photogramm-remote-sens-spatial-inf-sci.net/XLII-4-W16/471/2019/isprs-archives-XLII-4-W16-471-2019.pdf)

3. COMPARATIVE ANALYSIS OF VARIOUS CAMERA INPUT FOR VIDEOGRAMMETRY
(https://www.int-arch-photogramm-remote-sens-spatial-inf-sci.net/XLII-4-W16/63/2019/isprs-archives-XLII-4-W16-63-2019.pdf)

Royal Institution of Surveyors Malaysia (RISM) Awards

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Congratulations to Tang Siew Khing in winning 3 national level awards by the Royal Institution of Surveyors Malaysia (RISM). She presented her Final Year Project (FYP) in a form of research paper last month. The awards are:

  1. Gold Award in Best Paper Category
  2. Innovative Paper Award
  3. Potential Research Paper Award

Thank you to Royal Institution of Surveyors Malaysia (RISM) Geomatic and Land Surveying (GLS) Division, anonymous Jurors, and Universiti Teknologi Malaysia (UTM). This awards means a world to my Sarawakian student in doing her FYP dissertation.

To RISM, keep it up with this good event. This will values our profession growth in the country 👍🏻

and again, Congratulations Tang!!!